Piasa, IL

2:58 AM 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)
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Broadcast Network
Piasa Weather at a Glance
Updated 2:54 AM CST
Weather Station
St. Charles (KSET)
Elevation
433 ft
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Now
Overcast
Overcast
Temperature
28 °F
Feels Like 24 °F
Wind(mph)
4
Sunrise / Set
6:55 AM
5:34 PM
Moon
Waning Gibbous
Tonight
Partly Cloudy 20 °F
Partly Cloudy
Monday
Snow 31 °F
Snow
90% chance of precipitation
Monday Night
Ice Pellets 29 °F
Ice Pellets
100% chance of precipitation
Tuesday
Mostly Cloudy 38 | 27 °F
Mostly Cloudy
Wednesday
Chance of Rain 45 | 36 °F
Chance of Rain
30% chance of precipitation
Thursday
Chance of Rain 47 | 29 °F
Chance of Rain
30% chance of precipitation
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.23 in
Visibility
10.0 miles
Clouds
Overcast 7500 ft
Moisture
Humidity
72%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KSET 130854Z AUTO 09003KT 10SM OVC075 M02/M07 A3022 RMK AO2 SLP237 T10221067 56021
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Weather Radio
Launch Weather Radio
Temperature
Windchill
24 °F
Dew Point
20 °F
Wind
Speed / Dir
4 mph from East
Wind Gust
Health
UV
0 out of 16
Pollen
.40 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Regional
View Flu Map
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Regional Forecast for Macoupin
Monday
chancesnow Chance of snow early in the morning...then snow in the late morning and afternoon. Snow accumulation of 1 to 2 inches. High in the lower 30s. South wind 10 to 15 mph. Chance of snow near 100 percent.
Monday Night
nt_snow Snow in the evening...then chance of light snow and patchy freezing drizzle after midnight. Snow accumulation of 1 to 2 inches. Total snow accumulation 2 to 4 inches. Near steady temperature around 30. South wind 10 to 15 mph. Chance of measurable precipitation near 100 percent.
Tuesday
cloudy Mostly cloudy in the morning and early afternoon then becoming partly sunny. High in the upper 30s. West wind around 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low in the upper 20s. Light wind.
Wednesday
chancerain Mostly cloudy. A 30 percent chance of rain in the afternoon. High in the mid 40s.
Wednesday Night
nt_rain Rain likely. Low in the upper 30s. Chance of rain 70 percent.
Thursday
chancerain Mostly cloudy with a 30 percent chance of rain. High in the upper 40s.
Thursday Night and Friday
nt_partlycloudy Partly cloudy. Low around 30. High in the mid 40s.
Friday Night
nt_sunny Mostly clear. Low in the upper 20s.
Saturday through Sunday
partlycloudy Partly cloudy. High around 50. Low in the lower 30s.
Source: NWS at 11:56 PM CST on February 12, 2012
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Nowcast
Winter Weather Advisory in effect from 9 am Monday to midnight CST Monday night...
Forecast
View Calendar 7-Day Weather Forecast for 62079
Monday, 13
Snow
31 | 29 °F
Snow
Chance of
Precipitation
90%
Tuesday, 14
Mostly Cloudy
38 | 27 °F
Mostly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Chance of Rain
45 | 36 °F
Chance of Rain
Chance of
Precipitation
30%
Thursday, 16
Chance of Rain
47 | 29 °F
Chance of Rain
Chance of
Precipitation
30%
Friday, 17
Partly Cloudy
43 | 27 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 18
Partly Cloudy
47 | 31 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 19
Partly Cloudy
49 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Rest of Tonight
nt_cloudy Cloudy. Low around 20. Light wind.
Monday
chancesnow Chance of snow early in the morning...then snow in the late morning and afternoon. Snow accumulation of 1 to 2 inches. High in the lower 30s. South wind 10 to 15 mph. Chance of snow near 100 percent.
Monday Night
nt_snow Snow in the evening...then chance of light snow and patchy freezing drizzle after midnight. Snow accumulation of 1 to 2 inches. Total snow accumulation 2 to 4 inches. 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 25 | 11 27 | 23 29 | 27 29 | 29
Wind 6 mph South 12 mph South 11 mph South 8 mph South
Humidity 52% 84% 88% 96%
Chance of Precip. 10% 90% 90% 100%
Cloud Cover 100% 100% 100% 100%
Conditions Chance of Snow Snow Snow Ice Pellets
Sunrise & Sunset
6:55 AM
5:34 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Tuesday
cloudy Mostly cloudy in the morning and early afternoon then becoming partly sunny. High in the upper 30s. West wind around 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low in the upper 20s. Light wind.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 29 36 | 32 34 | 31 31 | 27
Wind 5 mph SSW 7 mph West 5 mph WSW 4 mph SSW
Humidity 99% 88% 88% 88%
Chance of Precip. 100% 10% 10% 0%
Cloud Cover 100% 88% 39% 35%
Conditions Overcast Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:53 AM
5:36 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Wednesday
chancerain Mostly cloudy. A 30 percent chance of rain in the afternoon. High in the mid 40s.
Wednesday Night
nt_rain Rain likely. Low in the upper 30s. Chance of rain 70 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 27 40 | 36 43 | 38 40 | 38
Wind 4 mph South 7 mph SSE 6 mph SE 6 mph SSE
Humidity 95% 85% 82% 95%
Chance of Precip. 0% 30% 30% 70%
Cloud Cover 62% 78% 98% 99%
Conditions Partly Cloudy Chance of Rain Rain Rain
Sunrise & Sunset
6:52 AM
5:37 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Thursday
chancerain Mostly cloudy with a 30 percent chance of rain. High in the upper 40s.
Thursday Night and Friday
nt_partlycloudy Partly cloudy. Low around 30. High in the mid 40s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 38 | 38 43 | 38 41 | 34 36 | 31
Wind 1 mph WSW 7 mph West 7 mph West 7 mph West
Humidity 99% 82% 76% 81%
Chance of Precip. 70% 30% 30% 10%
Cloud Cover 87% 66% 31% 39%
Conditions Chance of Rain Chance of Rain Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:51 AM
5:38 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Thursday Night and Friday
nt_partlycloudy Partly cloudy. Low around 30. High in the mid 40s.
Friday Night
nt_sunny Mostly clear. Low in the upper 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 40 | 27 38 | 27 32 | 25
Wind 6 mph WNW 8 mph WNW 6 mph WNW 4 mph West
Humidity 84% 62% 61% 72%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 48% 36% 22% 20%
Conditions Partly Cloudy Partly Cloudy Clear Clear
Sunrise & Sunset
6:50 AM
5:39 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Saturday through Sunday
partlycloudy Partly cloudy. High around 50. Low in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 23 43 | 31 43 | 32 36 | 31
Wind 4 mph SW 5 mph WSW 5 mph South 2 mph West
Humidity 77% 61% 65% 82%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 37% 28% 34% 27%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:50 AM
5:39 PM
Source: NWS at 11:56 PM CST on February 12, 2012
Regional Forecast for Macoupin
Saturday through Sunday
partlycloudy Partly cloudy. High around 50. Low in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 29 45 | 34 43 | 32 36 | 31
Wind 5 mph SW 9 mph South 5 mph South 2 mph West
Humidity 85% 67% 65% 82%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 53% 50% 34% 27%
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 36 °F 16 °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
Length Of Visible Light 11h 34m
Length of Day
10h 39m
Tomorrow will be 2m 21s longer.
Waning Gibbous, 65% 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
29 °F
Jacksonville
29 °F
Pittsfield
28 °F
Sparta
28 °F
Quincy
27 °F
Macomb
12 °F
Rochelle
14 °F
Savanna
14 °F
Sterling
14 °F
Freeport
14 °F
Moline
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
Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Alton 26 °F Overcast 2:55 AM CST
St. Charles 28 °F Overcast 2:54 AM CST
Litchfield 24 °F Clear 2:55 AM CST
St. Louis 31 °F Overcast 2:51 AM CST
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: VFR (KSET)
Wind Speed: 3.0 kts.
Wind Dir: 90° (East)
Ceiling: 7500 ft

METAR KSET 130854Z AUTO 09003KT 10SM OVC075 M02/M07 A3022 RMK AO2 SLP237 T10221067 56021

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Partly Cloudy, 59 °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, 63 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 63 °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 25.5 °F 26 °F 14 °F 61% SSE  at  0.0 mph 0.00 in / hr 661 ft 2:58 AM CST Rapid Fire
Alton - Rock Gate Estates, Alton, IL 26.1 °F 26 °F 22 °F 82% SW  at  0.0 mph 0.00 in / hr 565 ft 2:58 AM CST Rapid Fire
Timber Ridge, Godfrey, IL 23.8 °F 24 °F 19 °F 81% WSW  at  0.0 mph 0.00 in / hr 485 ft 2:58 AM CST Normal  
Carlinville Firehouse, Carlinville, IL 25.1 °F 25 °F 12 °F 56% North  at  0.0 mph 0.00 in / hr 500 ft 2:58 AM CST Rapid Fire  
Alton - Christian Hill Area, Alton, IL 28.7 °F 29 °F 14 °F 53% ENE  at  2.0 mph 0.00 in / hr 610 ft 2:55 AM CST Normal
Alton - Beacon, Alton, IL 29.5 °F 30 °F 14 °F 52% East  at  1.0 mph 0.00 in / hr 530 ft 2:58 AM CST Rapid Fire  
Carlinville Sumner Street, Carlinville, IL 24.8 °F 25 °F 11 °F 56% WSW  at  0.0 mph 0.00 in / hr 500 ft 2:58 AM CST Rapid Fire  
Rosewood Heights, East Alton, IL 28.2 °F 28 °F 10 °F 46% SSE  at  2.0 mph 0.00 in / hr 545 ft 2:58 AM CST Rapid Fire  
ADMRL'S Weather Station, Staunton, IL 23.2 °F 23 °F -10 °F 22% SSE  at  0.0 mph 0.00 in / hr 620 ft 2:55 AM CST Normal
HADS MISSISSIPPI RIVER AT POOL 26 NEA IL, Grafton, IL - - - - North  at  - 0.00 in / hr 430 ft 2:30 AM CST MADIS
MesoWest Carpenter East , Hamel, IL 23 °F 23 °F - - North  at  - 0.00 in / hr 540 ft 1:30 AM CST MADIS
Florissant, MO 28.9 °F 29 °F 10 °F 44% South  at  1.6 mph 0.00 in / hr 597 ft 2:54 AM CST Rapid Fire  
Rezy Road, Staunton, IL 21.8 °F 22 °F 17 °F 81% South  at  0.0 mph 0.00 in / hr 630 ft 2:58 AM CST Rapid Fire
Quercus Grove Rd, Edwardsville, IL 24.4 °F 24 °F 16 °F 69% East  at  1.0 mph 0.00 in / hr 538 ft 2:58 AM CST Rapid Fire  
Polestar Boating Center, St. Charles, MO 28.8 °F 29 °F 22 °F 74% East  at  0.0 mph 0.00 in / hr 449 ft 2:58 AM CST Rapid Fire
Nickel Plate Trail, Edwardsville, IL 27.2 °F 27 °F 15 °F 60% South  at  1.0 mph 0.00 in / hr 545 ft 2:55 AM CST Normal
Esic Drive, Edwardsville, IL 27.5 °F 28 °F 12 °F 53% SW  at  0.0 mph 0.00 in / hr 545 ft 2:58 AM CST Rapid Fire
Dunlap Lake, Edwardsville, IL 26.4 °F 26 °F 14 °F 60% SSW  at  0.0 mph 0.00 in / hr 540 ft 2:53 AM CST Normal
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 3:02 PM CST on February 12, 2012

... Winter Weather Advisory in effect from 9 am Monday to midnight
CST Monday night...

The National Weather Service in St Louis has issued a Winter
Weather Advisory for snow... which is in effect from 9 am Monday
to midnight CST Monday night.

* Timing... snow will begin during the mid-morning hours and
persist through much of the evening on Monday. The heaviest
snowfall is expected to occur during the late afternoon and
early evening hours.

* Accumulations... snowfall accumulations of 2 to 4 inches are
anticipated.

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

* Impacts... the heaviest snowfall is expected to occur during the
afternoon and evening 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.