Saint Louis, MO

10:08 PM CDT on May 20, 2013 (GMT -0500)
Elev: 574 ft
Lon: 90.4° W
Lat: 38.5° N
Source
Rapid Fire Updates™
 Updated 10:06 PM CDT Get Free Weather Stickers® Share:
Your Custom Weather Sticker®

Copy the following lines of HTML:
Get more styles and options for your Weather Sticker® here.
Global: Violent tornado devastates Moore, Oklahoma
Active Advisory: Tornado Watch,  Severe Thunderstorm Warning,  Flash Flood Warning,  Areal Flood Advisory (US Severe Weather) Active Notice: Local Storm Report,  Public Information Statement
News
Tornado Took Similar Path to 1999 F5
May 20, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
Salvation Army, Red Cross Providing Help in Okla.
May 20, 2013
The Salvation Army says it is activating disaster response teams and mobile feeding units to help residents and rescuers in Moore.
At Least Seven Children Dead at Okla. Elementary
May 20, 2013
Several children have been pulled out of the rubble alive at a school in an Oklahoma City suburb.
White House Promises Help After Okla. Tornadoes
May 20, 2013
Homeland Security Secretary Janet Napolitano is assuring Oklahoma's governor that the Obama administration will provide all possible help to the state after a massive tornado tore through the Oklahoma City suburbs.
At Least 51 Dead in Massive Tornado
May 20, 2013
A monstrous tornado as much as a mile wide roared through the Oklahoma City suburbs Monday, flattening entire neighborhoods, setting buildings on fire and landing a direct blow on an elementary school.
Photos, Social Media Capture Terror of Okla. Tornadoes
May 20, 2013
Catastrophic tornadoes developed in Oklahoma on Monday. Here are photos and social media reports.
Huge Rock Crashes Into Moon, Sparks Giant Explosion
May 20, 2013
The moon has a new hole on its surface thanks to a boulder that slammed into it in March, creating the biggest explosion scientists have seen on the moon since they started monitoring it.
Deadly Rainstorms Kill 55 in Southern China
May 20, 2013
Chinese authorities say rainstorms that battered southern China this week have killed 55 people and left 14 others missing.
Photos: Deadly Tornado Outbreak Strikes Plains
May 20, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 20, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Amazing Nature, Captured
May 20, 2013
These stunning images of nature captured across the globe will change the way you view our world.
Photos: Tornado Devastation in Plains
May 20, 2013
Photos and social media reports of severe weather damage over the weekend in Oklahoma, Iowa and Kansas.
Tornado Hits South of Oklahoma City
May 20, 2013
Continuing coverage of destructive severe weather.
Tornado Hits OKC Suburb, Kicking Up Debris
May 19, 2013
A tornado kicked up debris in an Oklahoma City suburb and threatened a number of tourist attractions on historic Route 66 but there were no immediate reports of injuries or major damage.
Tornado Touches Down in Wichita
May 19, 2013
State emergency officials are monitoring a tornado in the Wichita area.
BREAKING: Oklahoma Tornado Devastation
May 20, 2013
The latest breaking news from the scene, tornado warnings, photos and more.
Mice Return From a Month in Space
May 19, 2013
Mice and other critters return from a month long stay in space.
Heavy Rains Cause Flooding in North Georgia
May 20, 2013
Some locations have seen 5 to 6 inches of rainfall.
May Severe Outbreak: Day 1 Recap
May 19, 2013
See the tornado, damaging wind and large hail reports on our interactive map.
Tornado Hunt Captures Multiple Tornadoes in Progress
May 19, 2013
See images and video from the Plains as severe thunderstorms left their mark.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Monday, May 20, 2013.

Heavy rains and chances of severe thunderstorm activity continued for areas of the Plains into the Midwest on Tuesday as a broad, nearly stationary low remained over the Northern Plains. As the system lingered, ample moisture streamed northward from the Gulf of Mexico, while an associated cold front reached from the low southward through Central and Southern Plains. The sharpening cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the Central U.S. set the stage for multiple clusters of thunderstorms to develop across the Plains and into the Mid-Mississippi Valley. Portions of eastern/central Oklahoma, north-central Texas, northwestern Arkansas, southern Missouri, far southeastern Kansas remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the central Texas into the Upper Great Lakes and Upper Mississippi Valley were at slight risk of severe thunderstorm development with hail and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers persisted near the low and it\\\\'s associated warm front in portions of the north-central U.S. Continued precipitation in this already saturate region combined with rapid runoff maintained flood concerns from parts of North Dakota into northwestern Wisconsin.

Elsewhere, scattered showers and thunderstorms developed in the Mid-Atlantic and southeastern corner of the nation as a weak upper trough of low pressure dropped southward over the region. To the north, additional showers were possible in the Northeast.
Weather Underground midday recap for Monday, May 20, 2013.

Heavy rains and chances of severe thunderstorm activity continued for areas of the Plains into the Midwest on Tuesday as a broad, nearly stationary low remained over the Northern Plains. As the system lingered, ample moisture streamed northward from the Gulf of Mexico, while an associated cold front reached from the low southward through Central and Southern Plains. The sharpening cold front combined with a dry line in the Southern Plains and the moisture laden conditions of the Central U.S. set the stage for multiple clusters of thunderstorms to develop across the Plains and into the Mid-Mississippi Valley. Portions of eastern/central Oklahoma, north-central Texas, northwestern Arkansas, southern Missouri, far southeastern Kansas remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for strong tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of the central Texas into the Upper Great Lakes and Upper Mississippi Valley were at slight risk of severe thunderstorm development with hail and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers persisted near the low and it\\\\'s associated warm front in portions of the north-central U.S. Continued precipitation in this already saturate region combined with rapid runoff maintained flood concerns from parts of North Dakota into northwestern Wisconsin.

Elsewhere, scattered showers and thunderstorms developed in the Mid-Atlantic and southeastern corner of the nation as a weak upper trough of low pressure dropped southward over the region. To the north, additional showers were possible in the Northeast.
More News Articles

Saint Louis Weather at a Glance

Updated 10:06 PM CDT
Elevation
485 ft
Report Station
You are about to report this weather station for bad data.

Please select the information which is incorrect and click 'Submit' otherwise click 'Cancel'.

— Cancel

Now
Overcast
Overcast
Temperature
77.3 °F
Feels Like 79 °F
Wind(mph)
1.0
Sunrise / Set
5:45 AM
8:10 PM
Moon
Waxing Gibbous
Tonight
Thunderstorm 64 °F
T-storms
80% chance of precipitation
Tomorrow
Thunderstorm 82 °F
T-storms
50% chance of precipitation
Tomorrow Night
Thunderstorm 64 °F
T-storms
70% chance of precipitation
Wednesday
Chance of a Thunderstorm 82 | 55 °F
Chance of T-storms
30% chance of precipitation
Thursday
Partly Cloudy 75 | 45 °F
Partly Cloudy
Friday
Partly Cloudy 79 | 43 °F
Partly Cloudy
Tomorrow is forecast to be Cooler than today.
Conditions
Pressure
29.83 in
Visibility
2.0 miles
Clouds
Few 800 ft
Mostly Cloudy 1900 ft
Overcast 5500 ft
Moisture
Humidity
80%
Rainfall
0.09 in
Snow Depth
Not available.
METAR
SPECI KSTL 210300Z 30021G33KT 2SM TSRA FEW008 BKN019CB OVC055 19/17 A2983 RMK AO2 PK WND 32031/0252 WSHFT 0238 OCNL LTGICCG ALQDS TS ALQDS MOV NE P0001
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Heat Index
79 °F
Dew Point
71 °F
Wind
Speed / Dir
1.0 mph from WNW
Wind Gust
4.0 mph
Health
UV
0 out of 16
Pollen
9.00 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Moderate
Flu Activity
Sporadic
View Flu Map
Loading…
Source: BestForecast
Descriptive Forecast
Monday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 64F. Winds from the South at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.7 in. possible.
Tuesday
tstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SW at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_tstorms Mostly cloudy with thunderstorms and rain showers. Low of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the WSW at 10 to 15 mph. Chance of rain 30%.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 55F. Winds from the WNW at 5 to 10 mph.
Thursday
partlycloudy Partly cloudy. Fog early. High of 75F. Winds from the NW at 5 to 10 mph.
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 45F. Winds from the NE at 5 to 10 mph.
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 79F. Winds from the NE at 5 to 10 mph.
Friday Night
nt_mostlycloudy Partly cloudy in the evening, then overcast. Low of 43F. Winds from the East at 5 to 10 mph.
Saturday
chancerain Overcast with a chance of rain. High of 75F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Saturday Night
nt_cloudy Overcast. Low of 52F. Winds from the ESE at 5 to 10 mph.
Sunday
cloudy Overcast. High of 81F. Winds from the SE at 5 to 10 mph.
Sunday Night
nt_cloudy Overcast. Fog overnight. Low of 61F. Winds from the SE at 5 to 10 mph.
Monday
partlycloudy Partly cloudy. High of 84F. Winds from the South at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 63F. Winds from the South at 10 to 15 mph.
Tuesday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 5 to 10 mph.
Tuesday Night
nt_partlycloudy Clear. Low of 70F. Winds from the South at 5 to 10 mph.
Wednesday
clear Clear. High of 95F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Thursday
clear Clear. High of 95F. Winds from the SSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Friday
clear Clear. High of 91F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Loading…
 
First Previous Last Next  
Updated:  
 
 

 

Nowcast
Tornado Watch 193 in effect until 1 am CDT Tuesday...

Weather Forecast for Saint Louis MO

View Calendar 10-Day Forecast for station KMOSAINT27

Tuesday, 21
Thunderstorm
82 | 64 °F
T-storms
Chance of
Precipitation
50%
Wednesday, 22
Chance of a Thunderstorm
82 | 55 °F
Chance of T-storms
Chance of
Precipitation
30%
Thursday, 23
Partly Cloudy
75 | 45 °F
Partly Cloudy
Chance of
Precipitation
10%
Friday, 24
Partly Cloudy
79 | 43 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 25
Chance of Rain
75 | 52 °F
Chance of Rain
Chance of
Precipitation
40%
Sunday, 26
Overcast
81 | 61 °F
Overcast
Chance of
Precipitation
0%
Monday, 27
Fog
84 | 63 °F
Fog
Chance of
Precipitation
0%
Tuesday, 28
Partly Cloudy
93 | 70 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Clear
95 | 70 °F
Clear
Chance of
Precipitation
0%
Thursday, 30
Clear
95 | 70 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Tuesday
tstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the SW at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_tstorms Mostly cloudy with thunderstorms and rain showers. Low of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.5 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 65 73 | 67 81 | 68 72 | 65
Wind 9 mph SSW 12 mph SW 9 mph SW 6 mph SSW
Humidity 95% 79% 61% 77%
Chance of Precip. 80% 50% 50% 60%
Cloud Cover 86% 73% 73% 78%
Conditions Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Thunderstorm
Sunrise & Sunset
5:45 AM
8:10 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.59], Average RMSE [1.61]
The National Weather Service forecast quality is fair. MaxT RMSE [2.90], Average RMSE [1.96] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds from the WSW at 10 to 15 mph. Chance of rain 30%.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 55F. Winds from the WNW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 63 73 | 58 77 | 59 65 | 57
Wind 7 mph SW 12 mph WSW 9 mph West 5 mph WNW
Humidity 89% 59% 51% 76%
Chance of Precip. 70% 40% 30% 10%
Cloud Cover 70% 52% 47% 40%
Conditions Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Partly Cloudy
Sunrise & Sunset
5:45 AM
8:11 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.44], Average RMSE [1.66]
The National Weather Service forecast quality is fair. MaxT RMSE [2.97], Average RMSE [1.51] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. Fog early. High of 75F. Winds from the NW at 5 to 10 mph.
Thursday Night
nt_clear Partly cloudy in the evening, then clear. Low of 45F. Winds from the NE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 56 69 | 60 69 | 56 62 | 50
Wind 5 mph WNW 8 mph NW 9 mph NNW 6 mph NNE
Humidity 95% 71% 63% 65%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 41% 45% 46% 1%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:44 AM
8:12 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.21], Average RMSE [2.65]
The National Weather Service forecast quality is poor. MaxT RMSE [3.82], Average RMSE [2.75] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Friday
partlycloudy Clear in the morning, then partly cloudy. High of 79F. Winds from the NE at 5 to 10 mph.
Friday Night
nt_mostlycloudy Partly cloudy in the evening, then overcast. Low of 43F. Winds from the East at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 42 68 | 45 73 | 51 59 | 44
Wind 6 mph East 7 mph NNE 6 mph NE 5 mph East
Humidity 71% 42% 46% 58%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 55% 34%
Conditions Clear Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:43 AM
8:13 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.61], Average RMSE [2.90]
The National Weather Service forecast quality is poor. MaxT RMSE [4.80], Average RMSE [2.98] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Saturday
chancerain Overcast with a chance of rain. High of 75F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Saturday Night
nt_cloudy Overcast. Low of 52F. Winds from the ESE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 51 | 44 71 | 51 73 | 55 65 | 51
Wind 4 mph East 7 mph ESE 7 mph ESE 7 mph ESE
Humidity 73% 49% 53% 57%
Chance of Precip. 0% 20% 10% 10%
Cloud Cover 94% 88% 100% 100%
Conditions Overcast Chance of Rain Overcast Overcast
Sunrise & Sunset
5:43 AM
8:14 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.03], Average RMSE [2.89]
The National Weather Service forecast quality is poor. MaxT RMSE [4.92], Average RMSE [3.35] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Sunday
cloudy Overcast. High of 81F. Winds from the SE at 5 to 10 mph.
Sunday Night
nt_cloudy Overcast. Fog overnight. Low of 61F. Winds from the SE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 51 69 | 59 76 | 67 68 | 63
Wind 7 mph ESE 8 mph SE 7 mph SE 6 mph SE
Humidity 78% 72% 75% 81%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 100% 100% 99% 99%
Conditions Overcast Overcast Overcast Overcast
Sunrise & Sunset
5:42 AM
8:14 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.47], Average RMSE [4.33]
The National Weather Service forecast quality is poor. MaxT RMSE [5.65], Average RMSE [4.12] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Monday
partlycloudy Partly cloudy. High of 84F. Winds from the South at 5 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy. Low of 63F. Winds from the South at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 61 77 | 67 76 | 71 69 | 65
Wind 8 mph SSE 10 mph South 10 mph South 10 mph South
Humidity 98% 72% 85% 91%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 99% 84% 34% 58%
Conditions Fog Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:41 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.46], Average RMSE [2.94]
The National Weather Service forecast quality is poor. MaxT RMSE [6.10], Average RMSE [4.08] : Use NWS
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Tuesday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 5 to 10 mph.
Tuesday Night
nt_partlycloudy Clear. Low of 70F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 60 70 | 64 82 | 69 71 | 65
Wind 7 mph SSW 9 mph SSW 7 mph SSW 9 mph South
Humidity 83% 82% 64% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 54% 31% 28% 25%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:41 AM
8:16 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.18], Average RMSE [3.84]
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Wednesday
clear Clear. High of 95F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 70 | 60 82 | 63 90 | 69 73 | 67
Wind 8 mph SSW 10 mph SSW 8 mph SSW 9 mph SSW
Humidity 71% 52% 48% 84%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 22% 18% 13% 9%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:40 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.44], Average RMSE [4.00]
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Thursday
clear Clear. High of 95F. Winds from the SSW at 5 to 10 mph.
Thursday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 71 | 65 87 | 67 89 | 71 74 | 69
Wind 8 mph SSW 10 mph SSW 7 mph SSW 8 mph SSW
Humidity 82% 51% 54% 86%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 9% 8% 6% 10%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:40 AM
8:17 PM
Source: BestForecast at 9:27 PM CDT on May 20, 2013
Descriptive Forecast
Friday
clear Clear. High of 91F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 70F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 71 | 67 84 | 68 86 | 71 72 | 69
Wind 7 mph SSW 9 mph SSW 7 mph SSW 8 mph SSW
Humidity 85% 58% 59% 92%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 18% % % %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 20, 2013 Max Temp Min Temp
Normal (KSTL) 77 °F 58 °F
Record (KSTL) 93 °F (1902) 41 °F (1981)
Yesterday 91 °F 71 °F
Yesterday's Cooling Degree Days: 16
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Moderate
PM2.5
Yesterday Good
OZONE
Current Moderate
PM2.5
Current Good
OZONE
Monday Good
PM2.5
Tuesday Moderate
OZONE
Tuesday Good
PM2.5
Astronomy
May. 20, 2013 Rise Set
Actual Time 5:45 AM CDT 8:10 PM CDT
Civil Twilight 5:15 AM CDT 8:41 PM CDT
Nautical Twilight 4:38 AM CDT 9:18 PM CDT
Astronomical Twilight 3:57 AM CDT 10:00 PM CDT
Moon 3:21 PM CDT (5/20) 2:37 AM CDT (5/20)
Length Of Visible Light 15h 25m
Length of Day
14h 25m
Tomorrow will be 1m 32s longer.
Waxing Gibbous, 79% of the Moon is Illuminated
Today
Waxing Gibbous
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
88 °F
Cape Girardeau
86 °F
Poplar Bluff
83 °F
St. Louis
82 °F
St. Joseph
81 °F
St. Charles
59 °F
Warrensburg
59 °F
Kirksville
59 °F
Monett
59 °F
Whiteman AFB
59 °F
Rolla
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
Follow us on Twitter Find us on Facebook Community
WunderPhotos®
Storm Clouds
Mini-Falls!
• • • • • • • • • •
Uploaded by: LatitudeNorth19
1,613,432 photos uploaded!
Upload a photo now
Visit WunderPhotos
WunderBlogs®
Planets Aligning in the Sunset ...
By Susie77 10 days ago
Visit WunderBlogs
Travel & Activities
Travel Planning
Travel Planner Road Trip Planner
Destination? *
When are you going?
to
Is there an activity you would like to explore?
* Required field
View all Travel Tools
Aviation
City Temp. Conditions Updated
St. Louis 66 °F Thunderstorm Rain 10:00 PM CDT
Cahokia 79 °F Overcast 9:53 PM CDT
Alton This station is not reporting.
Belleville 78 °F Partly Cloudy 9:58 PM CDT
View all Aviation Tools
Flight To ETA Status
SWA739
Louisville, KY 		KSTL 10:00PM On Time
GJS9608
Denver, CO 		KSTL 10:10PM On Time
SWA525
Orlando, FL 		KSTL 10:16PM On Time
GJS6289
New York, NY 		KSTL 10:21PM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: IFR (KSTL)
Wind Speed: 21.0 kts.
Wind Dir: 302° (WNW)
Ceiling: 1900 ft

SPECI KSTL 210300Z 30021G33KT 2SM TSRA FEW008 BKN019CB OVC055 19/17 A2983 RMK AO2 PK WND 32031/0252 WSHFT 0238 OCNL LTGICCG ALQDS TS ALQDS MOV NE P0001

View all Reports & Maps
Nearby Events
Event Date Forecast
Bear Safety 101 Class 7:00 PM CDT
2013-04-15		 Thunderstorm, 66°F
Arches National Park Seminar 7:00 PM CDT
2013-04-16		 Thunderstorm, 57°F
The Well Hungarians 9:00 PM CDT
2013-04-17		 Thunderstorm, 76°F
The Well Hungarians 9:00 PM CDT
2013-04-17		 Thunderstorm, 76°F
The Well Hungarians 9:00 PM CDT
2013-04-17		 Thunderstorm, 76°F
The Well Hungarians 9:00 PM CDT
2013-04-17		 Thunderstorm, 76°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Yankees vs. Orioles 7:05 PM EDT on May 20, 2013 Partly Cloudy, 79 °F
Twins vs. Braves 7:10 PM EDT on May 20, 2013 Partly Cloudy, 81 °F
Royals vs. Cardinals 7:15 PM CDT on May 29, 2013 Average High 80° F/ 26° C
Royals vs. Cardinals 7:15 PM CDT on May 30, 2013 Average High 79° F/ 26° C
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 68° F/ 20° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Chance of Rain, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Partly Cloudy, 68 °F
BMW Championship 8:30 AM CDT on September 12, 2013 Average High 82° F/ 27° C
BMW Championship 8:30 AM CDT on September 13, 2013 Average High 81° F/ 27° C
View all Sports Weather
Videos
Year In Weather 2012

Watch the nearly year-long satellite animation as Weather Underground calls out the most significant weather events of the past year, including Superstorm Sandy and Hurricane Isaac.

Visit Our Video Section
Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Saint Louis County, Saint Louis County, MO 77.3 °F 79 °F 71 °F 80% WNW  at  1.0 mph 0.00 in / hr 485 ft 10:06 PM CDT Normal  
Oakville-Providence Pointe, Oakville, MO 76.9 °F 78 °F 70 °F 78% SSE  at  3.0 mph 0.00 in / hr 555 ft 10:07 PM CDT Rapid Fire  
Arnold, Arnold, MO 76.9 °F 78 °F 70 °F 80% SSW  at  1.0 mph 0.00 in / hr 449 ft 10:08 PM CDT Rapid Fire  
Arnold, MO 76.8 °F 78 °F 72 °F 85% West  at  6.9 mph 0.00 in / hr 507 ft 10:07 PM CDT Rapid Fire  
APRSWXNET Sappington MO , Saint Louis, MO 76 °F 77 °F 70 °F 82% SW  at  0 mph 0.00 in / hr 606 ft 9:38 PM CDT MADIS
South St. Louis County, St. Louis, MO 78.3 °F 80 °F - 71% ENE  at  1.0 mph 0.00 in / hr 574 ft 10:05 PM CDT Normal  
St. Louis, MO 74.5 °F 76 °F 66 °F 76% WNW  at  0.0 mph 0.02 in / hr 617 ft 10:08 PM CDT Rapid Fire  
Oakville, Cardinal Creek Subd, Oakville, MO 77.2 °F 79 °F 71 °F 81% SSW  at  5.0 mph 0.00 in / hr 538 ft 10:08 PM CDT Rapid Fire
Oakville, Cliffwood Trail, Oakville, MO 76.6 °F 78 °F 71 °F 83% SE  at  2.7 mph 0.00 in / hr 578 ft 10:08 PM CDT Rapid Fire
APRSWXNET Mehlville MO , Saint Louis, MO 75 °F 75 °F 71 °F 87% NNW  at  0 mph 0.00 in / hr 496 ft 9:47 PM CDT MADIS
Christopher Winds, Oakville, MO 74.1 °F 76 °F 38 °F 27% West  at  0.0 mph 0.00 in / hr 607 ft 10:05 PM CDT Normal  
Crestwood, Crestwood, MO 77.9 °F 76 °F -30 °F - SSW  at  2.7 mph - / hr 550 ft 9:57 PM CDT Normal  
Sunset Hills, St Louis, MO 75.6 °F 77 °F 66 °F 72% WNW  at  0.0 mph 0.00 in / hr 615 ft 10:05 PM CDT Normal
APRSWXNET Fenton MO , Fenton, MO 77 °F 79 °F 69 °F 77% South  at  3 mph 0.00 in / hr 590 ft 9:37 PM CDT MADIS
Radiom Dr, Affton, MO 78.4 °F 81 °F 70 °F 76% WNW  at  3.0 mph 0.00 in / hr 470 ft 10:08 PM CDT Rapid Fire  
APRSWXNET Arnold MO , Sulphur Springs, MO 77 °F 79 °F 70 °F 80% South  at  4 mph 0.00 in / hr 455 ft 9:40 PM CDT MADIS
MesoWest HLCRST , Saint Louis, MO 79 °F 77 °F - - North  at  - 0.00 in / hr 429 ft 8:55 PM CDT MADIS
South County, Affton, MO 78.0 °F 80 °F 72 °F 82% North  at  5.0 mph 0.00 in / hr 480 ft 10:08 PM CDT Rapid Fire
San Luis Trails, Fenton, MO 69.6 °F - 61 °F 73% WNW  at  4.0 mph 0.63 in / hr 580 ft 10:08 PM CDT Rapid Fire  
Hawkins/Smizer Mill, Fenton, MO 70.1 °F 72 °F 63 °F 78% WNW  at  6.0 mph 0.04 in / hr 595 ft 10:08 PM CDT Rapid Fire
Big Bend and I-270, Kirkwood, MO 71.2 °F 73 °F 63 °F 75% West  at  2.0 mph 2.50 in / hr 614 ft 10:08 PM CDT Normal  
Imperial, MO 73.0 °F 72 °F 69 °F 86% North  at  0.0 mph 0.04 in / hr 600 ft 10:07 PM CDT Rapid Fire  
Imperial - Wellington Subdivision, Imperial, MO 78.0 °F 80 °F 72 °F 81% WNW  at  3.5 mph 0.00 in / hr 479 ft 10:07 PM CDT Rapid Fire
Holly Hills, St Louis, MO 78.1 °F 80 °F 67 °F 69% SW  at  1.1 mph 0.00 in / hr 0 ft 10:08 PM CDT Rapid Fire
MesoWest I-255 / IL-3 @ Columbia , Columbia, IL 78 °F 80 °F 75 °F 90% ENE  at  10 mph 0.00 in / hr 416 ft 9:16 PM CDT MADIS
Twin Oaks, Twin Oaks, MO 74.3 °F 76 °F 65 °F 73% SW  at  5.3 mph - / hr 584 ft 9:59 PM CDT Normal  
MesoWest WARNK1 , Columbia, IL 81 °F 79 °F - - North  at  - 0.00 in / hr 402 ft 9:15 PM CDT MADIS
Manchester, MO, Manchester, MO 74.0 °F 75 °F 65 °F 74% North  at  2.0 mph 0.00 in / hr 543 ft 10:01 PM CDT Normal
Lindenwood Park, St Louis, MO 55.4 °F - 42 °F 60% North  at  0.0 mph 0.00 in / hr 468 ft 9:40 PM CDT Normal
South Hampton, Saint Louis, MO 77.2 °F 79 °F 65 °F 66% NNW  at  8.0 mph 0.00 in / hr 486 ft 10:08 PM CDT Rapid Fire  
MesoWest I-44 @ Jamieson Ave - St. Louis, Saint Louis, MO 78 °F 76 °F - - SW  at  7 mph 0.00 in / hr 456 ft 9:20 PM CDT MADIS
Gedern Village, Columbia, IL 78.3 °F 77 °F 54 °F 10% SSW  at  5.0 mph 0.00 in / hr 466 ft 10:07 PM CDT Rapid Fire  
Chesapeake on the Bluff, Columbia, IL 75.7 °F 75 °F 73 °F 92% NNE  at  1.6 mph 0.00 in / hr 600 ft 10:07 PM CDT Rapid Fire  
Arbor Valley, Ballwin, MO 67.1 °F - 62 °F 85% NW  at  9.0 mph 1.23 in / hr 531 ft 10:07 PM CDT Rapid Fire  
Would you like to share your weather data with the rest of the world? Add Your Weather Station!
Tornado Watch
Mobile & Email Alerts Statement as of 10:03 PM CDT on May 20, 2013

Tornado Watch 193 remains in effect until 100 am CDT for the
following locations

MO
. Missouri counties included are

Crawford Franklin Jefferson
St. Charles St. Louis Washington




Missouri independent cities included are

St. Louis city


Severe Thunderstorm Warning
Mobile & Email Alerts Statement as of 9:50 PM CDT on May 20, 2013

... A Severe Thunderstorm Warning remains in effect for St. Louis...
St. Charles... northern Jefferson... northeastern Franklin and southern
Calhoun counties until 1015 PM CDT...

At 945 PM CDT... a line of severe thunderstorms was located along a
line extending from St. Paul to Villa Ridge... and moving east at 55
mph.

Hazard... 70 mph wind gusts.

Source... the ASOS at Smartt field in St. Charles reported a wind
         gust of 70 mph at 947 PM CDT.

Impact... expect considerable tree damage. Damage is likely to Mobile
         homes... roofs and outbuildings.

Locations impacted include...
Cottleville... Weldon Spring... Wildwood... St. Peters... Eureka...
Clarkson Valley... Chesterfield... Ellisville... St. Charles...
Ballwin... Byrnes Mill... Manchester... Maryland Heights... high ridge...
Town And Country... Valley Park... Bridgeton... Murphy... Creve Coeur and
Des Peres.

This warning includes babler Memorial State Park... Castlewood State
Park... first Missouri state Capitol historic site... Robertsville
State Park and Route 66 State Park.

This warning also includes...
Interstate 70 in Missouri from exit 208 to exit 231.
Interstate 44 from exit 242 to exit 277.
Interstate 55 in Missouri from exit 190 to exit 191.

Precautionary/preparedness actions...

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although one is not
immediately likely... if a tornado is spotted... act quickly and move
to a place of safety inside a sturdy structure... such as a basement
or small interior room.

For your protection move to an interior room on the lowest floor of a
building.


Lat... Lon 3837 9099 3855 9099 3855 9097 3889 9095
      3889 9086 3888 9082 3891 9080 3894 9041
      3894 9035 3893 9033 3840 9033
time... Mot... loc 0249z 257deg 50kt 3887 9068 3842 9080

Hail... <.75in
wind... 70mph


Kanofsky



Flash Flood Warning
Mobile & Email Alerts Statement as of 9:21 PM CDT on May 20, 2013

The National Weather Service in St Louis has issued a

* Flash Flood Warning for...
northern Franklin County in east central Missouri...
northern St. Louis County in east central Missouri...
southern Warren County in east central Missouri...
St. Charles County in east central Missouri...

* until 330 am CDT Tuesday

* at 918 PM CDT... National Weather Service Doppler radar indicated
thunderstorms with very heavy rainfall moving across the
warned area. Up to two inches of rain has fallen so far. Another
round of storms will move through in the next couple of hours...
with an additional inch of rainfall possible.

* Runoff from this excessive rainfall will cause flash flooding to
occur. Some locations that will experience flooding include...
Ballwin... Bel-Ridge... Berkeley... Black Jack... Bridgeton...
Chesterfield... Clarkson Valley... Cool Valley... Cottleville... Creve
Coeur... Dardenne Prairie... Dellwood... Ellisville... Ferguson...
Florissant... Gray Summit... Hazelwood... Kinloch... lake St. Louis...
Lambert Field... Maryland Heights... New Haven... O'Fallon...
overland... Spanish Lake... St. Ann... St. Charles... St. John... St.
Paul and St. Peters.


Precautionary/preparedness actions...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warning area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property. Do not attempt to cross
swiftly flowing waters or waters of unknown depth by foot or by
automobile.

Be especially cautious at night when it is harder to recognize the
dangers of flooding. If flash flooding is observed act quickly. Do
not enter the water. Turn around and move up to higher ground to
escape flood waters. Do not stay in areas subject to flooding when
water begins rising.


Lat... Lon 3848 9076 3832 9136 3870 9137 3888 9095
      3889 9063 3887 9057 3896 9042 3883 9011


Byrd



Areal Flood Advisory
Mobile & Email Alerts Statement as of 8:41 PM CDT on May 20, 2013

The National Weather Service in St Louis has issued an

* Urban and Small Stream Flood Advisory for...
northern St. Louis County in east central Missouri...
St. Charles County in east central Missouri...

* until 230 am CDT

* at 837 PM CDT... National Weather Service Doppler radar indicated
thunderstorms with heavy rainfall across the advisory area. Doppler
radar estimated between one and two inches of rain in the past
hour.

* Runoff from this excessive rainfall will cause minor flooding to
occur... especially along small streams and near low water
crossings. Some locations that will experience minor flooding
include... Ballwin... Bel-Ridge... Berkeley... Black Jack...
Bridgeton... Chesterfield... Clarkson Valley... Cool Valley...
Cottleville... Creve Coeur... Dardenne Prairie... Dellwood...
Ellisville... Ferguson... Florissant... Hazelwood... Kinloch... lake St.
Louis... Lambert Field... Maryland Heights... O'Fallon... overland...
Spanish Lake... St. Ann... St. Charles... St. John... St. Paul... St.
Peters... Weldon Spring and Wentzville.

At 825 PM... St. Charles emergency management reported up to 4 inches
of standing water on I-70 westbound west of the blanchette bridge.

Precautionary/preparedness actions...

An Urban and Small Stream Flood Advisory means river or stream flows
are elevated or ponding of water in urban or other areas is occurring
or is imminent.


Lat... Lon 3882 9011 3850 9072 3852 9074 3863 9073
      3860 9077 3859 9079 3882 9095 3888 9061
      3887 9057 3888 9054 3890 9052 3892 9039


Byrd



Local Storm Report
Mobile & Email Alerts


05/20/2013 0955 PM

Ballwin, St Louis County.

Thunderstorm wind damage, reported by trained spotter.


            Multiple large trees snapped in the Winchester area





05/20/2013 0951 PM

1 miles SSW of Hazelwood, St Louis County.

Thunderstorm wind gust m46 mph, reported by ASOS.






05/20/2013 0329 am

Chesterfield, St Louis County.

Thunderstorm wind damage, reported by public.


            Few trees blown over reported by public on facebook.





05/20/2013 0338 am

Creve Coeur, St Louis County.

Thunderstorm wind damage, reported by public.


            Tree snapped off. Minor roof and gutter damage.





05/20/2013 0343 am

2 miles E of Florissant, St Louis County.

Thunderstorm wind damage, reported by public.


            Several trees and power lines down in Black Jack. Tree
            blocking the Road on new hallsferry near Douglas Road.





05/20/2013 0330 am

3 miles W of Chesterfield, St Louis County.

Thunderstorm wind gust m53 mph, reported by ASOS.




View All U.S. Severe Weather
Public Information Statement
Mobile & Email Alerts Statement as of 7:40 PM CDT on May 20, 2013

... Safety rules for tornadoes...

A Tornado Watch has been issued by the National Weather Service.
In the interest of public safety... the following safety rules are
provided. Public and commercial broadcast stations serving the
affected area are asked to broadcast these safety messages
frequently while the watch is in effect.

The key to tornado survival is to be prepared and take immediate
action when a warning is issued or when you feel threatened.
Remember... the actions you take during a tornado event may save
your life and the lives of those you are responsible for.

A Tornado Watch means conditions are favorable for the
development of severe thunderstorms which can produce tornadoes
in and close to the watch area. If you are in the watch area...
keep informed of the latest weather information. These storms
can develop rapidly so there may be occasions when advance
warning is not possible.

A Tornado Warning means a tornado has been spotted or indicated
by radar... and you should take immediate action to protect
yourself and those around you.

Follow these safety rules to keep yourself safe:

(1) Mobile homes provide absolutely no protection from high
winds. If you live in a Mobile home... plan your escape to a
nearby sturdy building that will give you proper shelter. At
the first sign of an approaching storm go immediately to this
building.

(2) in homes... apartment complexes... or other small buildings...
go to the basement or to a small all-interior room on the lowest
floor like a Hall or bathroom closet. Use heavy furniture for
shelter or cover yourself with a mattress or blanket.

(3) in schools... hospitals... factories... or shopping centers...
go to designated shelter areas. Interior Halls on the lowest
levels are usually the best. Stay away from gymnasiums or
auditoriums. Avoid all outside walls and windows.

(4) never try to outrun a tornado in a vehicle. Traffic and the
layout of roads may block your escape. You should abandon cars
and trucks if a tornado approaches... and take shelter in a nearby
building.

(5) if caught in the open with no shelter nearby... find a
ditch... culvert or other low area and lay down flat. Cover your
head with your hands for protection.


View All U.S. Severe Weather