Florissant, MO

1:16 PM CDT on May 21, 2013 (GMT -0500)
Elev: 548 ft
Lon: 90.3° W
Lat: 38.8° N
Source
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Global: Violent Tornado Causes Catastrophic Damage in Moore, Oklahoma
Active Advisory: Flood Warning (US Severe Weather) Active Notice: Record Report,  Local Storm Report,  Public Information Statement
News
Crews Race to Find Survivors of Oklahoma Twister
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Weather Imagery Reveals Oklahoma Tornado
May 21, 2013
The Moore, Oklahoma tornado showed up vividly on satellite and radar.
PTSD Risk after the Oklahoma Tornado
May 21, 2013
In the wake of Mondays devastating tornado that ravaged the town of Moore, Okla., survivors are likely to feel incredible shock and numbness.
Massive Tornado Leaves Small Hospital 'Pretty Much Destroyed'
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
Why Don't More Homes in Oklahoma Have Basements?
May 21, 2013
The answer lies in the level of the water table and the soil texture in Oklahoma and in states across the Plains.
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
Moore, Oklahoma is no stranger to devastating tornadoes.
'I Expected Chaos:' Scenes from Okla. School
May 21, 2013
A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
May 21, 2013
Watch as a tornado survivor is interrupted in the middle of interview by a little dog digging out of rubble.
Oklahoma Tornado: How to Help
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
Multiple Children Dead at Okla. School
May 21, 2013
More than a dozen children are dead in the devastating Moore, Okla. tornado.
Twitter Responds With Prayers for Oklahoma Tornado Victims
May 21, 2013
Twitter responds to the devastation brought by tornadoes Monday in suburban Oklahoma City, offering condolences and prayers for the victims and survivors.
In Their Words: The Oklahoma Tornado Tragedy
May 21, 2013
Our reporters were among the first national media to report from Moore, Okla. shortly after a powerful tornado decimated the town. These are their thoughts as they report from the scene.
Obama Declares Major Disaster in Oklahoma
May 21, 2013
President Barack Obama has declared a major disaster in Oklahoma as the state recovers from a massive tornado that ripped through the Oklahoma City suburbs Monday, killing dozens and flattening entire neighborhoods.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
Weather Underground Forecast for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather is expected to fire up again across the nation's mid-section again on Tuesday.

The nearly stationary low over the Northern Plains will gradually weaken as it shifts eastward into the Midwest on Tuesday, while the system's associated cold front trails southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section will set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of northeastern Texas, extreme southeastern Oklahoma, central and southern Arkansas, and northwestern Louisiana are at moderate risk of severe thunderstorm activity as environmental conditions remain favorable for tornadoes, damaging wind gusts, and very large hail. Areas surrounding this moderate risk region from the parts of central and eastern Texas into the Upper Great Lakes are at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes.

Meanwhile, areas of heavy rain and widely scattered showers will continue near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest will maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms are expected to persist in the Mid-Atlantic and southeastern corner of the nation.
More News Articles

Florissant Weather at a Glance

Updated 1:15 PM CDT
Elevation
505 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
82.6 °F
Feels Like 85 °F
Wind(mph)
4.5
Sunrise / Set
5:43 AM
8:12 PM
Moon
Waxing Gibbous
Today
Thunderstorm 84 °F
T-storms
50% chance of precipitation
Tonight
Thunderstorm 64 °F
T-storms
80% chance of precipitation
Tomorrow
Chance of a Thunderstorm 77 | 55 °F
Chance of T-storms
30% chance of precipitation
Thursday
Partly Cloudy 70 | 46 °F
Partly Cloudy
Friday
Clear 70 | 48 °F
Clear
Saturday
Overcast 70 | 59 °F
Overcast
Today is forecast to be Cooler than yesterday.
Conditions
Pressure
29.77 in
Visibility
10.0 miles
Clouds
Few 3500 ft
Scattered Clouds 15000 ft
Mostly Cloudy 25000 ft
Moisture
Humidity
56%
Rainfall
0.15 in
Snow Depth
Not available.
METAR
METAR KSTL 211751Z 20009KT 10SM FEW035 SCT150 BKN250 26/18 A2979 RMK AO2 SLP080 T02560178 10256 20189 56001
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Heat Index
85 °F
Dew Point
65 °F
Wind
Speed / Dir
4.5 mph from West
Wind Gust
9.8 mph
Health
UV
6 out of 16
Pollen
4.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday
tstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 84F. Winds from the SW at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 64F. Winds from the SW at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 0.8 in. possible.
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 77F. 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 15 mph.
Thursday
partlycloudy Partly cloudy. High of 70F. Winds from the NW at 10 to 15 mph.
Thursday Night
nt_clear Clear. Low of 46F. Winds from the NNE at 5 to 15 mph.
Friday
clear Clear. High of 70F. Winds from the NE at 5 to 10 mph.
Friday Night
nt_cloudy Overcast. Low of 48F. Winds from the ESE at 5 to 10 mph.
Saturday
cloudy Overcast. High of 70F. Winds from the SE at 5 to 15 mph.
Saturday Night
nt_cloudy Overcast. Low of 59F. Winds from the SE at 5 to 10 mph.
Sunday
cloudy Overcast with a chance of a thunderstorm. High of 77F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.
Sunday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 63F. Winds from the SE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Monday
mostlycloudy Overcast. High of 82F. Winds from the South at 5 to 10 mph.
Monday Night
nt_mostlycloudy Mostly cloudy. Low of 68F. Winds from the South at 5 to 10 mph.
Tuesday
mostlycloudy Overcast. High of 91F. Winds from the South at 5 to 15 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Low of 70F. Winds from the South at 10 to 15 mph.
Wednesday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 10 to 15 mph.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 72F. Winds from the SSW at 5 to 10 mph.
Thursday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 10 to 15 mph.
Thursday Night
nt_partlycloudy Clear. Low of 72F. Winds from the SSW at 5 to 10 mph.
Friday
clear Clear. High of 93F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 72F. Winds from the SSW at 5 to 10 mph.
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Weather Forecast for Florissant MO

View Calendar 10-Day Forecast for station KMOFLORI7

Tuesday, 21
Thunderstorm
84 | 64 °F
T-storms
Chance of
Precipitation
50%
Wednesday, 22
Chance of a Thunderstorm
77 | 55 °F
Chance of T-storms
Chance of
Precipitation
30%
Thursday, 23
Partly Cloudy
70 | 46 °F
Partly Cloudy
Chance of
Precipitation
10%
Friday, 24
Clear
70 | 48 °F
Clear
Chance of
Precipitation
0%
Saturday, 25
Overcast
70 | 59 °F
Overcast
Chance of
Precipitation
0%
Sunday, 26
Chance of a Thunderstorm
77 | 63 °F
Chance of a Thunderstorm
Chance of
Precipitation
20%
Monday, 27
Mostly Cloudy
82 | 68 °F
Mostly Cloudy
Chance of
Precipitation
0%
Tuesday, 28
Mostly Cloudy
91 | 70 °F
Mostly Cloudy
Chance of
Precipitation
0%
Wednesday, 29
Partly Cloudy
93 | 72 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 30
Partly Cloudy
93 | 72 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Tuesday
tstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 84F. Winds from the SW at 10 to 15 mph. Chance of rain 50%.
Tuesday Night
nt_tstorms Overcast with thunderstorms and rain showers. Low of 64F. Winds from the SW at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 0.8 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 69 | 64 80 | 67 82 | 66 71 | 63
Wind 10 mph SSW 12 mph SW 10 mph SW 7 mph SW
Humidity 84% 63% 58% 75%
Chance of Precip. 100% 10% 50% 70%
Cloud Cover 89% 67% 69% 87%
Conditions Thunderstorm Mostly Cloudy Chance of a Thunderstorm Thunderstorm
Sunrise & Sunset
5:43 AM
8:12 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.24], Average RMSE [1.71]
The National Weather Service forecast quality is good. MaxT RMSE [2.01], Average RMSE [1.95] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Wednesday
chancetstorms Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 77F. 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 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 66 | 62 74 | 58 72 | 56 63 | 54
Wind 9 mph SW 13 mph WSW 12 mph West 8 mph WNW
Humidity 85% 58% 57% 73%
Chance of Precip. 80% 40% 30% 10%
Cloud Cover 70% 43% 47% 55%
Conditions Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Partly Cloudy
Sunrise & Sunset
5:43 AM
8:13 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.76], Average RMSE [2.00]
The National Weather Service forecast quality is good. MaxT RMSE [2.22], Average RMSE [1.63] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 70F. Winds from the NW at 10 to 15 mph.
Thursday Night
nt_clear Clear. Low of 46F. Winds from the NNE at 5 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 54 63 | 56 67 | 54 55 | 46
Wind 10 mph WNW 11 mph WNW 10 mph NNW 6 mph NNE
Humidity 78% 76% 62% 73%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 54% 55% 40% 0%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:42 AM
8:13 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.92], Average RMSE [3.22]
The National Weather Service forecast quality is fair. MaxT RMSE [3.16], Average RMSE [3.03] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 70F. Winds from the NE at 5 to 10 mph.
Friday Night
nt_cloudy Overcast. Low of 48F. Winds from the ESE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 49 | 40 64 | 44 69 | 51 57 | 45
Wind 6 mph NE 4 mph NE 4 mph ENE 5 mph SE
Humidity 69% 48% 54% 64%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 0% 100%
Conditions Clear Clear Clear Overcast
Sunrise & Sunset
5:41 AM
8:14 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.03], Average RMSE [3.24]
The National Weather Service forecast quality is poor. MaxT RMSE [3.58], Average RMSE [3.15] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Saturday
cloudy Overcast. High of 70F. Winds from the SE at 5 to 15 mph.
Saturday Night
nt_cloudy Overcast. Low of 59F. Winds from the SE at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 46 62 | 53 70 | 57 63 | 53
Wind 6 mph SSE 9 mph SE 8 mph SSE 8 mph SE
Humidity 70% 70% 64% 70%
Chance of Precip. 0% 10% 0% 10%
Cloud Cover 100% 100% 100% 100%
Conditions Overcast Overcast Overcast Overcast
Sunrise & Sunset
5:41 AM
8:15 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.02], Average RMSE [3.43]
The National Weather Service forecast quality is poor. MaxT RMSE [4.09], Average RMSE [3.56] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Sunday
cloudy Overcast with a chance of a thunderstorm. High of 77F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.
Sunday Night
nt_chancetstorms Overcast with a chance of a thunderstorm. Low of 63F. Winds from the SE at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 53 75 | 60 72 | 65 69 | 63
Wind 7 mph SE 8 mph SSE 9 mph SE 8 mph SE
Humidity 74% 60% 82% 79%
Chance of Precip. 0% 20% 10% 30%
Cloud Cover 100% 99% 100% 94%
Conditions Overcast Chance of Rain Overcast Chance of a Thunderstorm
Sunrise & Sunset
5:40 AM
8:16 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.77], Average RMSE [4.17]
The National Weather Service forecast quality is poor. MaxT RMSE [4.81], Average RMSE [4.22] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Monday
mostlycloudy Overcast. High of 82F. Winds from the South at 5 to 10 mph.
Monday Night
nt_mostlycloudy Mostly cloudy. Low of 68F. Winds from the South at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 61 77 | 67 76 | 69 69 | 63
Wind 8 mph SSE 6 mph South 7 mph South 9 mph South
Humidity 88% 70% 80% 81%
Chance of Precip. 30% 10% 0% 10%
Cloud Cover 100% 98% 76% 88%
Conditions Chance of a Thunderstorm Overcast Mostly Cloudy Mostly Cloudy
Sunrise & Sunset
5:40 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.78], Average RMSE [3.30]
The National Weather Service forecast quality is poor. MaxT RMSE [5.14], Average RMSE [4.31] : Use NWS
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Tuesday
mostlycloudy Overcast. High of 91F. Winds from the South at 5 to 15 mph.
Tuesday Night
nt_mostlycloudy Mostly cloudy. Low of 70F. Winds from the South at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 68 | 62 82 | 67 81 | 69 74 | 65
Wind 9 mph SSW 11 mph SSW 10 mph South 10 mph South
Humidity 80% 58% 67% 69%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 94% 93% 97% 88%
Conditions Overcast Overcast Overcast Mostly Cloudy
Sunrise & Sunset
5:39 AM
8:17 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [5.89], Average RMSE [4.95]
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 10 to 15 mph.
Wednesday Night
nt_partlycloudy Partly cloudy. Low of 72F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 70 | 60 83 | 62 87 | 65 76 | 65
Wind 9 mph SSW 11 mph SSW 8 mph SSW 10 mph SSW
Humidity 70% 48% 49% 66%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 70% 60% 59% 54%
Conditions Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:39 AM
8:18 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [6.72], Average RMSE [5.07]
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Thursday
partlycloudy Partly cloudy. High of 93F. Winds from the SSW at 10 to 15 mph.
Thursday Night
nt_partlycloudy Clear. Low of 72F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 72 | 62 82 | 64 90 | 66 78 | 66
Wind 9 mph SSW 10 mph SW 7 mph SSW 8 mph SSW
Humidity 72% 52% 45% 65%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 45% 38% 33% 25%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:38 AM
8:19 PM
Source: BestForecast at 8:39 AM CDT on May 21, 2013
Descriptive Forecast
Friday
clear Clear. High of 93F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_clear Clear. Low of 72F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 73 | 64 82 | 67 90 | 71 75 | 71
Wind 8 mph SSW 10 mph SSW 7 mph SW 7 mph SSW
Humidity 72% 60% 54% 83%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 14% 10% 13% %
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KSTL) 78 °F 59 °F
Record (KSTL) 93 °F (1941) 38 °F (1883)
Yesterday 83 °F 63 °F
Yesterday's Cooling Degree Days: 8
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 Good
PM2.5
Yesterday Good
OZONE
Current Good
OZONE
Current Good
PM2.5
Tuesday Moderate
OZONE
Tuesday Good
PM2.5
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:43 AM CDT 8:12 PM CDT
Civil Twilight 5:13 AM CDT 8:42 PM CDT
Nautical Twilight 4:35 AM CDT 9:20 PM CDT
Astronomical Twilight 3:53 AM CDT 10:02 PM CDT
Moon 4:27 PM CDT 3:09 AM CDT
Length Of Visible Light 15h 29m
Length of Day
14h 28m
Tomorrow will be 1m 32s longer.
Waxing Gibbous, 84% 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
79 °F
Cape Girardeau
78 °F
Poplar Bluff
78 °F
St. Louis
77 °F
Spirit of St Louis
77 °F
Washington
55 °F
Kansas City International
57 °F
Lee's Summit
57 °F
St. Joseph
59 °F
Warrensburg
59 °F
Branson
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
St. Louis 78 °F Mostly Cloudy 12:51 PM CDT
St. Charles 77 °F Clear 12:54 PM CDT
Alton 77 °F Mostly Cloudy 12:50 PM CDT
Cahokia 77 °F Clear 12:53 PM CDT
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Flight To ETA Status
LOF3393
Chicago, IL 		KSTL 01:14PM On Time
SWA1998
Fort Myers, FL 		KSTL 01:16PM On Time
FLG3431
Detroit, MI 		KSTL 01:19PM On Time
SKW4557
Salt Lake City, UT 		KSTL 01:19PM On Time
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Type Condition
Flight Rule: VFR (KSTL)
Wind Speed: 9.0 kts.
Wind Dir: 270° (West)
Ceiling: 25000 ft

METAR KSTL 211751Z 20009KT 10SM FEW035 SCT150 BKN250 26/18 A2979 RMK AO2 SLP080 T02560178 10256 20189 56001

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Jost Farm, Florissant, MO 82.6 °F 85 °F 65 °F 56% West  at  4.5 mph 0.00 in / hr 505 ft 1:15 PM CDT Normal  
Florissant, MO 85.5 °F 90 °F 69 °F 58% NNW  at  3.8 mph 0.00 in / hr 597 ft 1:13 PM CDT Rapid Fire  
Riverwood Place, Florissant, MO 78.6 °F 81 °F 68 °F 69% ESE  at  5.0 mph 0.00 in / hr 586 ft 1:16 PM CDT Rapid Fire  
Alton - Beacon, Alton, IL 82.0 °F 86 °F 70 °F 68% ESE  at  3.0 mph 0.00 in / hr 530 ft 1:16 PM CDT Rapid Fire  
Alton - Christian Hill Area, Alton, IL 80.5 °F 82 °F 65 °F 59% South  at  2.0 mph 0.00 in / hr 610 ft 1:15 PM CDT Normal
MesoWest US-67 @ Clark Bridge , Alton, IL 81 °F 84 °F 67 °F 63% SSW  at  6 mph 0.00 in / hr 396 ft 12:45 PM CDT MADIS
1 Mile South of St. Louis Lambert Airpo, Woodson Terrace, MO 78.1 °F 80 °F 67 °F 69% West  at  0.0 mph 0.00 in / hr 659 ft 1:16 PM CDT Rapid Fire  
Alton, IL 83.1 °F 87 °F 69 °F 63% East  at  1.6 mph 0.00 in / hr 489 ft 1:15 PM CDT Rapid Fire
Fox Hill, Saint Charles, MO 81.3 °F 80 °F 51 °F 35% East  at  0.0 mph 0.00 in / hr 577 ft 1:16 PM CDT Normal  
Historic Saint Charles, Saint Charles, MO 76.3 °F 78 °F 66 °F 72% South  at  9.0 mph 0.03 in / hr 534 ft 1:14 PM CDT Normal  
APRSWXNET Maryland Heights MO , Maryland Heights, MO 77 °F 79 °F 66 °F 70% NNE  at  0 mph 0.00 in / hr 548 ft 12:49 PM CDT MADIS
MesoWest NAMOK1 , Granite City, IL 81 °F 79 °F - - North  at  - 0.00 in / hr 422 ft 12:30 PM CDT MADIS
MesoWest NAMOK2 , Granite City, IL 80 °F 78 °F - - North  at  - 0.00 in / hr 425 ft 11:40 AM CDT MADIS
Maryland Heights, St Louis, MO 78.6 °F 80 °F 65 °F 64% WSW  at  6.0 mph 0.00 in / hr 564 ft 1:15 PM CDT Normal
Polestar Boating Center, St. Charles, MO 77.9 °F 80 °F 67 °F 70% SW  at  3.0 mph 0.00 in / hr 449 ft 1:16 PM CDT Rapid Fire
APRSWXNET Olivette MO , Saint Louis, MO 76 °F 77 °F 67 °F 75% SSW  at  1 mph 0.00 in / hr 692 ft 12:49 PM CDT MADIS
Maryland Heights, MO 78.3 °F 80 °F 68 °F 70% West  at  1.0 mph 0.00 in / hr 501 ft 1:12 PM CDT Normal
Rosewood Heights, East Alton, IL 79.2 °F 81 °F 66 °F 63% SSW  at  5.0 mph 0.00 in / hr 545 ft 1:16 PM CDT Rapid Fire  
Graeser Acres, St. Louis, MO 79.2 °F 81 °F 66 °F 65% East  at  1.3 mph 0.00 in / hr 614 ft 1:16 PM CDT Rapid Fire  
Jersey County along IL 111, Brighton, IL 82.6 °F 87 °F 70 °F 66% WSW  at  0.0 mph 0.00 in / hr 661 ft 1:16 PM CDT Rapid Fire
APRSWXNET Ladue MO , Saint Louis, MO 76 °F 78 °F 65 °F 69% West  at  2 mph 0.00 in / hr 626 ft 12:44 PM CDT MADIS
Saint Charles Hills, Saint Charles, MO 80.5 °F 83 °F 66 °F 61% West  at  9.2 mph 0.00 in / hr 475 ft 1:16 PM CDT Rapid Fire
Creve Coeur Airport, Maryland Heights, MO 79.4 °F 82 °F 68 °F 69% NW  at  5.0 mph 0.00 in / hr 427 ft 1:16 PM CDT Normal
Creve Coeur, St. Louis, MO 87.3 °F 91 °F 68 °F 52% South  at  1.1 mph 0.00 in / hr 512 ft 1:16 PM CDT Normal  
Whispering Hills, Creve Coeur, MO 79.4 °F 82 °F 67 °F 66% WSW  at  5.0 mph 0.00 in / hr 530 ft 1:16 PM CDT Rapid Fire
Cheltenham, St. Louis, MO 78.6 °F 81 °F 66 °F 66% South  at  5.4 mph 0.00 in / hr 476 ft 1:16 PM CDT Rapid Fire  
Ladue Meadows, Creve Coeur, MO 81.7 °F 85 °F 69 °F 65% SSE  at  2.0 mph 0.00 in / hr 486 ft 1:15 PM CDT Normal  
De Smet Jesuit High School, Creve Coeur, MO 76.4 °F 78 °F 66 °F 69% SE  at  6.0 mph 0.00 in / hr 666 ft 1:09 PM CDT Normal  
Bethalto, IL 79.3 °F 81 °F 67 °F 65% SE  at  13.0 mph 0.00 in / hr 525 ft 1:16 PM CDT Rapid Fire  
Chesterfield (East), Chesterfield, MO 78.9 °F 81 °F 67 °F 66% SW  at  5.0 mph 0.00 in / hr 530 ft 1:16 PM CDT Normal
RAWS MBOT MO, Saint Louis, MO 79 °F 81 °F 65 °F 63% South  at  3 mph 0.00 in / hr 509 ft 12:19 PM CDT MADIS
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Flood Warning
Mobile & Email Alerts Statement as of 9:49 AM CDT on May 21, 2013

The National Weather Service in St Louis has issued a

* Flood Warning for
the Meramec river near Arnold
* from late tonight to Sunday morning.
* At 9:30 am Tuesday the stage was 23.0 feet.
* Flood stage is 24.0 feet.
* Minor flooding is forecast.
* Forecast... the river is forecast to rise above flood stage late tonight
and crest near 27.2 feet Friday morning.
* Impact... at 27.0 feet... Meramec bottom Road between Wells Road and
kerth Road begins flooding near this height.
* Impact... at 26.0 feet... house at the end of kasebaum Lane is
surrounded by water just west of Lemay Ferry Road bridge. Also,
Hawkins Road south of Meramec bottom Road is closed near this
height.
* Impact... at 25.1 feet... St. Louis County closes the following roads
at this height: Butler Hill west of summerhedge place, Meramec
bottom Road between Hageman Road and Highway 21, Hawkins Road south
of Meramec bottom Road, and old Telegraph Road at Earl widman
County park.
* Impact... at 24.7 feet... Hawkins Road south of Meramec bottom Road
begins flooding.
* Impact... at 24.0 feet... corisande hills Road begins flooding at this
height. Meramec bottom Road between Hageman Road and Highway 21
begins flooding.
* Impact... at 23.5 feet... the boat ramps and fishing banks at Arnold
City Park and at the Flamm City access on the West Bank near the
Telegraph Road bridge are flooded.
* Impact... at 23.0 feet... old Telegraph Road at Earl widman County
park and Butler Hill Road west beyond summerhedge place begin
flooding. Heintz Road between Telegraph and erb also floods near
this height.


Lat... Lon 3851 9043 3851 9039 3845 9032 3841 9034 3845 9043



                   fld latest 7am forecast
location stg obs stg 05/22 05/23 05/24 05/25 05/26



Record Report
Mobile & Email Alerts Statement as of 02:53 am CDT on May 21, 2013

... Record daily maximum rainfall set at Columbia ASOS...

a record rainfall of 1.48 inches was set at Columbia ASOS yesterday.
This breaks the old record of 1.2 set in 1947.



View All U.S. Severe Weather
Local Storm Report
Mobile & Email Alerts


05/20/2013 0951 PM

1 miles SSW of Hazelwood, St Louis County.

Thunderstorm wind gust m46 mph, reported by ASOS.





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 1005 PM

Creve Coeur, St Louis County.

Thunderstorm wind gust e45 mph, reported by broadcast media.





05/20/2013 1005 PM

Creve Coeur, St Louis County.

Hail e0.25 inch, reported by broadcast media.





05/20/2013 1012 PM

Overland, St Louis County.

Hail e0.70 inch, reported by trained spotter.





05/20/2013 1012 PM

Olivette, St Louis County.

Hail e0.25 inch, reported by trained spotter.





05/20/2013 1012 PM

Olivette, St Louis County.

Thunderstorm wind gust e60 mph, reported by trained spotter.





05/20/2013 1012 PM

Olivette, St Louis County.

Hail e0.25 inch, reported by trained spotter.





05/20/2013 1012 PM

Olivette, St Louis County.

Thunderstorm wind gust e60 mph, reported by trained spotter.






05/20/2013 1012 PM

Overland, St Louis County.

Hail e0.70 inch, reported by trained spotter.






05/20/2013 1005 PM

Creve Coeur, St Louis County.

Thunderstorm wind gust e45 mph, reported by broadcast media.





05/20/2013 1005 PM

Creve Coeur, St Louis County.

Hail e0.25 inch, reported by broadcast media.






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 12:48 PM CDT on May 21, 2013

... Preliminary damage survey results confirm short-lived tornado in
Mount Olive Illinois...

* maximum ef-scale rating: EF-2

* fatalities: none

* injuries: 3 minor

* begin time/location: 05/20/2013 1014 PM

* end time/location: 05/20/2013 1015 PM

* maximum estimated wind speed: 120-125 mph

* path length: approximately 1 mile

* maximum path width: 75 yards

* discussion/damage: preliminary survey results indicate a tornado
touched down in the downtown portion of Mount Olive and traveled
east. The damage path was 4 blocks long and ranged from 50-75
yards wide. The second story of a brick building was blown
off... large sections of several roofs were blown 2 blocks to the
north... a historic 2 story home had the roof blown off... and
windows were blown out of several homes and businesses.

This preliminary information was determined by a National
Weather Service survey team and is subject to change pending
final review of the event and publication in National Weather
Service storm data.

This information can also be found on our website at
www.Weather.Gov/lsx. More information will be available at
a later date when surveys have been completed.

For reference... the Enhanced Fujita scale classifies tornadoes
into the following categories:

EF0... wind speeds 65 to 85 mph
EF1... wind speeds 86 to 110 mph
EF2... wind speeds 111 to 135 mph
EF3... wind speeds 136 to 165 mph
EF4... wind speeds 166 to 200 mph
EF5... wind speeds greater than 200 mph


View All U.S. Severe Weather