Piasa, IL

8:13 PM CST on February 13, 2012 (GMT -0600)
Elev: 620 ft
Lon: 90.1° W
Lat: 39.1° N
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Active Advisory: Winter Weather Advisory (US Severe Weather) Active Notice: Local Storm Report
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Shaun Tanner
Weather Underground midday recap for Monday, February 13, 2012. A storm raced out of the Rockies and into the Plains on Monday, producing a good shot of Winter weather in the Plains and Mississippi Valley. Winter Weather Advisories were posted from eastern Oklahoma through the western Tennessee Valley in anticipation of several inches of new snow. Snow fell as far north as Minnesota and Michigan, but lighter snow was reported the farther north you went. In the warmer air closer to the Gulf Coast, rain fell in Louisiana and Mississippi.

Wet weather also greeted the West Coast as a Pacific storm slammed into California. This storm lacked a tremendous amount of moisture, but it has been a very dry Winter for the state thus far, and any precipitation is very much welcomed. Up to a foot of new snow is possible from this storm in the higher elevations of the Sierra Nevadas when all is said and done.

The East Coast was dry as a high pressure continued to dominate, but the region experienced another chilly day. By the afternoon, temperatures were still in the 20s and 30s for many areas in New England, while temperatures in the 30s were experience as far south as Arkansas. Morning temperatures were in the 20s in northern Florida.

The Northern Plains rose into the 20s and 30s, while the Northwest saw temperatures in the 30s and 40s. The Southwest rose into the 40s, 50s, and some 60s.
Weather Underground midday recap for Monday, February 13, 2012. A storm raced out of the Rockies and into the Plains on Monday, producing a good shot of Winter weather in the Plains and Mississippi Valley. Winter Weather Advisories were posted from eastern Oklahoma through the western Tennessee Valley in anticipation of several inches of new snow. Snow fell as far north as Minnesota and Michigan, but lighter snow was reported the farther north you went. In the warmer air closer to the Gulf Coast, rain fell in Louisiana and Mississippi.

Wet weather also greeted the West Coast as a Pacific storm slammed into California. This storm lacked a tremendous amount of moisture, but it has been a very dry Winter for the state thus far, and any precipitation is very much welcomed. Up to a foot of new snow is possible from this storm in the higher elevations of the Sierra Nevadas when all is said and done.

The East Coast was dry as a high pressure continued to dominate, but the region experienced another chilly day. By the afternoon, temperatures were still in the 20s and 30s for many areas in New England, while temperatures in the 30s were experience as far south as Arkansas. Morning temperatures were in the 20s in northern Florida.

The Northern Plains rose into the 20s and 30s, while the Northwest saw temperatures in the 30s and 40s. The Southwest rose into the 40s, 50s, and some 60s.
Weather Underground Broadcast Network
Piasa Weather at a Glance
Updated 7:51 PM CST
Weather Station
St. Louis (KSTL)
Elevation
604 ft
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Now
Light Snow
Light Snow
Temperature
32 °F
Feels Like 25 °F
Wind(mph)
8
Sunrise / Set
6:55 AM
5:34 PM
Moon
Waning Gibbous
Tonight
Ice Pellets 27 °F
Ice Pellets
100% chance of precipitation
Tomorrow
Mostly Cloudy 38 °F
Mostly Cloudy
Tomorrow Night
Partly Cloudy 29 °F
Partly Cloudy
Wednesday
Rain 45 | 38 °F
Rain
70% chance of precipitation
Thursday
Mostly Cloudy 45 | 29 °F
Mostly Cloudy
Friday
Partly Cloudy 43 | 27 °F
Partly Cloudy
Tomorrow is forecast to be Warmer than today.
Conditions
Pressure
29.94 in
Visibility
7.0 miles
Clouds
Mostly Cloudy 900 ft
Mostly Cloudy 1600 ft
Overcast 2100 ft
Moisture
Humidity
88%
Rainfall
0.14 in
Snow Depth
Not available.
METAR
METAR KSTL 140151Z COR 18007KT 7SM -SN BKN009 BKN016 OVC021 00/M02 A2991 RMK AO2 SLP137 P0001 T00001017 $
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Weather Radio
Launch Weather Radio
Temperature
Windchill
25 °F
Dew Point
29 °F
Wind
Speed / Dir
8 mph from South
Wind Gust
Health
UV
0 out of 16
Pollen
.50 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Regional
View Flu Map
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Regional Forecast for Macoupin
Tonight
nt_chancesnow Snow with freezing drizzle likely in the evening... then chance of snow and patchy freezing drizzle after midnight. Additional snow accumulation up to 1 inch. Total snow accumulation up to 2 inches. A light glazing expected. Near steady temperature around 30. South wind 10 to 15 mph. Chance of measurable precipitation near 100 percent.
Tuesday
cloudy Mostly cloudy. Patchy freezing drizzle early in the morning. High around 40. Southwest wind around 10 mph.
Tuesday Night
nt_cloudy Mostly cloudy. Low around 30. Light wind.
Wednesday
rain Mostly cloudy. Rain likely in the afternoon. High in the mid 40s. Southeast wind around 10 mph. Chance of rain 70 percent.
Wednesday Night
nt_rain Cloudy. Occasional rain and chance of thunderstorms in the evening...then chance of rain after midnight. Low around 40. Southeast wind around 10 mph in the evening shifting to the southwest after midnight. Chance of rain 80 percent.
Thursday
cloudy Mostly cloudy. High in the mid 40s.
Thursday Night
nt_partlycloudy Colder. Partly cloudy. Low around 30.
Friday
partlycloudy Mostly sunny. High in the mid 40s.
Friday Night through Sunday
partlycloudy Partly cloudy. Low in the upper 20s. High in the mid 40s.
Sunday Night and Washingtons Birthday
nt_sunny Mostly clear. Low around 30. High around 50.
Source: NWS at 7:40 PM CST on February 13, 2012
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Nowcast
Winter Weather Advisory in effect until midnight CST tonight...
Forecast
View Calendar 7-Day Weather Forecast for 62079
Monday, 13
Snow
34 | 27 °F
Snow
Chance of
Precipitation
100%
Tuesday, 14
Mostly Cloudy
38 | 29 °F
Mostly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Rain
45 | 38 °F
Rain
Chance of
Precipitation
70%
Thursday, 16
Mostly Cloudy
45 | 29 °F
Mostly Cloudy
Chance of
Precipitation
10%
Friday, 17
Partly Cloudy
43 | 27 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 18
Partly Cloudy
47 | 29 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 19
Partly Cloudy
47 | 31 °F
Partly Cloudy
Chance of
Precipitation
10%
Monday, 20
Partly Cloudy
49 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Tonight
nt_chancesnow Snow with freezing drizzle likely in the evening... then chance of snow and patchy freezing drizzle after midnight. Additional snow accumulation up to 1 inch. Total snow accumulation up to 2 inches. A light glazing expected. Near steady temperature around 30. South wind 10 to 15 mph. Chance of measurable precipitation near 100 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 13 29 | 20 29 | 25 29 | 27
Wind 5 mph South 12 mph South 11 mph South 9 mph South
Humidity 67% 71% 84% 92%
Chance of Precip. 10% 100% 100% 100%
Cloud Cover 87% 100% 100% 100%
Conditions Chance of Snow Snow Snow Ice Pellets
Sunrise & Sunset
6:55 AM
5:34 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Tuesday
cloudy Mostly cloudy. Patchy freezing drizzle early in the morning. High around 40. Southwest wind around 10 mph.
Tuesday Night
nt_cloudy Mostly cloudy. Low around 30. Light wind.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 29 36 | 31 36 | 31 32 | 29
Wind 5 mph SSW 7 mph West 4 mph WSW 5 mph South
Humidity 99% 85% 85% 84%
Chance of Precip. 100% 10% 10% 0%
Cloud Cover 100% 94% 45% 65%
Conditions Overcast Overcast Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:53 AM
5:36 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Wednesday
rain Mostly cloudy. Rain likely in the afternoon. High in the mid 40s. Southeast wind around 10 mph. Chance of rain 70 percent.
Wednesday Night
nt_rain Cloudy. Occasional rain and chance of thunderstorms in the evening...then chance of rain after midnight. Low around 40. Southeast wind around 10 mph in the evening shifting to the southwest after midnight. Chance of rain 80 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 31 41 | 38 43 | 40 40 | 40
Wind 6 mph SSE 8 mph SSE 7 mph SE 6 mph South
Humidity 99% 89% 88% 99%
Chance of Precip. 0% 70% 70% 80%
Cloud Cover 74% 96% 100% 100%
Conditions Mostly Cloudy Rain Chance of a Thunderstorm Chance of Rain
Sunrise & Sunset
6:52 AM
5:37 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Thursday
cloudy Mostly cloudy. High in the mid 40s.
Thursday Night
nt_partlycloudy Colder. Partly cloudy. Low around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 38 | 38 43 | 36 40 | 34 34 | 29
Wind 13 mph WNW 13 mph WNW 8 mph WNW 8 mph WNW
Humidity 99% 76% 75% 81%
Chance of Precip. 80% 10% 10% 10%
Cloud Cover 100% 78% 41% 38%
Conditions Overcast Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:51 AM
5:38 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Friday
partlycloudy Mostly sunny. High in the mid 40s.
Friday Night through Sunday
partlycloudy Partly cloudy. Low in the upper 20s. High in the mid 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 40 | 27 38 | 27 32 | 25
Wind 6 mph WNW 7 mph WNW 6 mph WNW 2 mph West
Humidity 84% 61% 61% 71%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 39% 28% 27% 26%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:39 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Friday Night through Sunday
partlycloudy Partly cloudy. Low in the upper 20s. High in the mid 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 23 41 | 29 43 | 31 36 | 29
Wind 2 mph WSW 4 mph WSW 2 mph SW 4 mph WNW
Humidity 80% 62% 64% 78%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 37% 30% 37% 37%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:39 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Friday Night through Sunday
partlycloudy Partly cloudy. Low in the upper 20s. High in the mid 40s.
Sunday Night and Washingtons Birthday
nt_sunny Mostly clear. Low around 30. High around 50.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 43 | 31 43 | 29 36 | 31
Wind 4 mph West 5 mph SSW 2 mph WNW 5 mph South
Humidity 81% 61% 59% 85%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 43% 45% 40% 34%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:39 PM
Source: NWS at 7:40 PM CST on February 13, 2012
Regional Forecast for Macoupin
Sunday Night and Washingtons Birthday
nt_sunny Mostly clear. Low around 30. High around 50.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 32 | 25 43 | 31 43 | 29 36 | 31
Wind 5 mph South 9 mph South 2 mph WNW 5 mph South
Humidity 74% 61% 59% 85%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 30% 27% 40% 34%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:39 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 13, 2012 Max Temp Min Temp
Normal (KALN) 43 °F 28 °F
Record (KALN) 59 °F (2011) 8 °F (2008)
Yesterday 38 °F 17 °F
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
OZONE
Yesterday Good
PM2.5
Current Good
PM2.5
Current Good
OZONE
Monday Good
PM2.5
Tuesday Good
PM2.5
Wednesday Moderate
PM2.5
Astronomy
Feb. 13, 2012 Rise Set
Actual Time 6:55 AM CST 5:34 PM CST
Civil Twilight 6:27 AM CST 6:02 PM CST
Nautical Twilight 5:56 AM CST 6:33 PM CST
Astronomical Twilight 5:25 AM CST 7:04 PM CST
Moon No Moon Rise 9:57 AM CST (2/13)
Length Of Visible Light 11h 34m
Length of Day
10h 39m
Tomorrow will be 2m 21s longer.
Waning Gibbous, 57% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Visit Astronomy
Today's Extremes
State Highs State Lows
37 °F
Joliet
37 °F
Romeoville
37 °F
Chicago Midway
37 °F
Kankakee
37 °F
Pontiac
11 °F
Rochelle
12 °F
Freeport
12 °F
Aurora
12 °F
Sterling
12 °F
Waukegan
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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The rest of February
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News
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Travel Planning
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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Aviation
City Temp. Conditions Updated
Alton 30 °F Light Snow 7:50 PM CST
St. Charles 30 °F Overcast 7:54 PM CST
Litchfield 30 °F Light Snow 7:55 PM CST
St. Louis 32 °F Light Snow 7:51 PM CST
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Flight To ETA Status
DAL791
Atlanta, GA 		KSTL 08:07PM On Time
GJS6153
Detroit, MI 		KSTL 08:08PM On Time
ASQ5643
Atlanta, GA 		KSTL 08:11PM On Time
LOF5281
Houston, TX 		KSTL 08:23PM On Time
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: IFR (KSTL)
Wind Speed: 7.0 kts.
Wind Dir: 180° (South)
Ceiling: 900 ft

METAR KSTL 140151Z COR 18007KT 7SM -SN BKN009 BKN016 OVC021 00/M02 A2991 RMK AO2 SLP137 P0001 T00001017 $

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Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Chance of Rain, 65 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 47 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 65 °F
BMW Championship 8:30 AM CDT on September 06, 2012 Average High 85° F/ 29° C
BMW Championship 8:30 AM CDT on September 07, 2012 Average High 85° F/ 29° C
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Jersey County along IL 111, Brighton, IL 29.8 °F 30 °F 26 °F 87% South  at  0.0 mph 0.00 in / hr 661 ft 8:13 PM CST Rapid Fire
Alton - Rock Gate Estates, Alton, IL 30.1 °F 30 °F 30 °F 100% East  at  0.0 mph 0.00 in / hr 565 ft 8:13 PM CST Normal
Timber Ridge, Godfrey, IL 30.0 °F 30 °F 28 °F 94% South  at  3.0 mph 0.00 in / hr 485 ft 8:12 PM CST Normal  
Carlinville Firehouse, Carlinville, IL 28.4 °F 23 °F 26 °F 91% NNW  at  5.0 mph 0.00 in / hr 500 ft 8:13 PM CST Rapid Fire  
Alton - Beacon, Alton, IL 30.6 °F 31 °F 30 °F 96% NNE  at  0.0 mph 0.00 in / hr 530 ft 8:13 PM CST Rapid Fire  
Carlinville Sumner Street, Carlinville, IL 29.4 °F 29 °F 28 °F 95% South  at  0.0 mph 0.00 in / hr 500 ft 8:13 PM CST Rapid Fire  
Rosewood Heights, East Alton, IL 30.0 °F 22 °F 28 °F 91% South  at  8.0 mph 0.00 in / hr 545 ft 8:13 PM CST Rapid Fire  
ADMRL'S Weather Station, Staunton, IL 30.0 °F 24 °F 12 °F 47% SE  at  6.0 mph 0.00 in / hr 620 ft 8:10 PM CST Normal
HADS MISSISSIPPI RIVER AT POOL 26 NEA IL, Grafton, IL - - - - North  at  - 0.00 in / hr 430 ft 7:30 PM CST MADIS
MesoWest Carpenter East , Hamel, IL 28 °F 28 °F - - North  at  - 0.00 in / hr 540 ft 7:20 PM CST MADIS
North of Edwardsville, Edwardsville, IL 28.8 °F 29 °F 26 °F 90% ESE  at  2.0 mph 0.00 in / hr 542 ft 4:44 PM CST Normal  
Florissant, MO 30.4 °F 26 °F 30 °F 99% South  at  3.8 mph 0.00 in / hr 597 ft 8:09 PM CST Rapid Fire  
Rezy Road, Staunton, IL 29.6 °F 30 °F 28 °F 95% South  at  3.0 mph 0.00 in / hr 630 ft 8:13 PM CST Rapid Fire
Quercus Grove Rd, Edwardsville, IL 28.7 °F 29 °F 27 °F 94% SE  at  3.0 mph 0.00 in / hr 538 ft 8:13 PM CST Rapid Fire  
Polestar Boating Center, St. Charles, MO 30.6 °F 31 °F 30 °F 96% SE  at  0.0 mph 0.00 in / hr 449 ft 8:13 PM CST Rapid Fire
Nickel Plate Trail, Edwardsville, IL 30.3 °F 30 °F 28 °F 93% South  at  2.0 mph 0.00 in / hr 545 ft 8:10 PM CST Normal
Esic Drive, Edwardsville, IL 30.6 °F 25 °F 28 °F 91% SSW  at  5.8 mph 0.00 in / hr 545 ft 8:13 PM CST Rapid Fire
Dunlap Lake, Edwardsville, IL 30.3 °F 30 °F 29 °F 94% East  at  2.0 mph 0.00 in / hr 540 ft 8:11 PM CST Normal
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 3:57 PM CST on February 13, 2012

... Winter Weather Advisory remains in effect until midnight CST
tonight...

* timing... snow will continue through the evening hours and may
mix with patchy freezing drizzle late tonight.

* Accumulations... additional snowfall accumulations of 1 to 3
inches are possible across portions of the advisory area.

* Winds... southerly winds at 10 to 15 mph with gusts to around
20 mph.

* Impacts... the heaviest snow and sleet is expected to occur
during the late afternoon commute resulting in hazardous
driving conditions.

Precautionary/preparedness actions...

A Winter Weather Advisory is issued for a variety of winter
weather conditions... such as snow... blowing snow... sleet... or
freezing drizzle and rain. It only takes a small amount of wintry
precipitation to make roads... bridges... sidewalks... and parking
lots icy and dangerous. It is often difficult to tell when ice
begins to form... so do not be caught off guard.





Local Storm Report
Mobile & Email Alerts


02/13/2012 0712 PM

Brighton, Macoupin County.

Snow m2.5 inch, reported by trained spotter.






02/13/2012 0647 PM

Carlinville, Macoupin County.

Snow m1.0 inch, reported by trained spotter.




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