Piasa, IL

12:00 AM CST on February 14, 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,  Public Information Statement
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Tuesday, February 14, 2012. Valentine's Day will be greeted by a storm that will begin the day in the Mississippi Valley before moving eastward into the eastern third of the country. In the colder air to the north, snow is expected to fall through the Ohio Valley before moving into the Northeast in the evening. The warmer air to the north will only allow areas of light to moderate rain to form from Louisiana through the Carolinas. By the end of the day, much of the precipitation from this storm will be off the eastern seaboard, leaving warmer air in the Southern Plains and much colder air in the Northern Plains and Upper Midwest.

In the West, a storm will track through the Great Basin before slamming into the Rockies, where it will produce much needed high elevation snow. This will not be a tremendous snow producer, but several inches of the white stuff is expected.

Late in the day, a Pacific storm will make its approach to the West Coast. As the storm moves inland, it will instigate rain and high elevation snow in Washington and Oregon. This storm will be the next rain producer for California on Wednesday.

The Northeast will rise in to the 30s and 40s, while the Southeast will see temperatures in the 50s, 60s, and 70s. The Northern Plains will rise into the 30s and 40s, while the Northwest will see temperatures in the 30s and 40s.
Weather Underground Forecast for Tuesday, February 14, 2012. Valentine's Day will be greeted by a storm that will begin the day in the Mississippi Valley before moving eastward into the eastern third of the country. In the colder air to the north, snow is expected to fall through the Ohio Valley before moving into the Northeast in the evening. The warmer air to the north will only allow areas of light to moderate rain to form from Louisiana through the Carolinas. By the end of the day, much of the precipitation from this storm will be off the eastern seaboard, leaving warmer air in the Southern Plains and much colder air in the Northern Plains and Upper Midwest.

In the West, a storm will track through the Great Basin before slamming into the Rockies, where it will produce much needed high elevation snow. This will not be a tremendous snow producer, but several inches of the white stuff is expected.

Late in the day, a Pacific storm will make its approach to the West Coast. As the storm moves inland, it will instigate rain and high elevation snow in Washington and Oregon. This storm will be the next rain producer for California on Wednesday.

The Northeast will rise in to the 30s and 40s, while the Southeast will see temperatures in the 50s, 60s, and 70s. The Northern Plains will rise into the 30s and 40s, while the Northwest will see temperatures in the 30s and 40s.
Weather Underground Broadcast Network
Piasa Weather at a Glance
Updated 11:55 PM CST
Weather Station
Alton (KALN)
Elevation
541 ft
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Now
Overcast
Overcast
Temperature
32 °F
Feels Like 25 °F
Wind(mph)
8
Sunrise / Set
6:53 AM
5:36 PM
Moon
Waning Gibbous
Tonight
Ice Pellets 27 °F
Ice Pellets
100% chance of precipitation
Tuesday
Mostly Cloudy 38 °F
Mostly Cloudy
Tuesday 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
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
29.87 in
Visibility
5.0 miles
Clouds
Mostly Cloudy 400 ft
Overcast 900 ft
Moisture
Humidity
98%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KALN 140555Z AUTO 17007KT 5SM BR BKN004 OVC009 00/00 A2987 RMK AO2 60001 T10011004 11001 21007 400251053
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Weather Radio
Launch Weather Radio
Temperature
Windchill
25 °F
Dew Point
31 °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
Tuesday
cloudy Mostly cloudy. Patchy freezing drizzle early in the morning. High around 40. Southwest wind around 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy in the evening then becoming mostly cloudy. Low around 30. Light wind.
Wednesday
rain Mostly cloudy. Rain likely and chance of thunderstorms 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 in the upper 30s. South wind around 10 mph in the evening shifting to the southwest after midnight. Chance of rain 80 percent.
Thursday
cloudy Cloudy in the morning then becoming partly sunny. High in the mid 40s.
Thursday Night
nt_partlycloudy 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 8:55 PM CST on February 13, 2012
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Nowcast
Winter Weather Advisory in effect until 6 am CST Tuesday...
Forecast
View Calendar 7-Day Weather Forecast for 62079
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 8:55 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_partlycloudy Partly cloudy in the evening then becoming 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 8:55 PM CST on February 13, 2012
Regional Forecast for Macoupin
Wednesday
rain Mostly cloudy. Rain likely and chance of thunderstorms 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 in the upper 30s. South 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 8:55 PM CST on February 13, 2012
Regional Forecast for Macoupin
Thursday
cloudy Cloudy in the morning then becoming partly sunny. High in the mid 40s.
Thursday Night
nt_partlycloudy 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 8:55 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 8:55 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
6:48 AM
5:40 PM
Source: NWS at 8:55 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
6:48 AM
5:40 PM
Source: NWS at 8:55 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
6:48 AM
5:40 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 14, 2012 Max Temp Min Temp
Normal 43 °F 28 °F
Record 60 °F (2005) 12 °F (2007)
Yesterday 36 °F 23 °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. 14, 2012 Rise Set
Actual Time 6:53 AM CST 5:36 PM CST
Civil Twilight 6:26 AM CST 6:03 PM CST
Nautical Twilight 5:55 AM CST 6:34 PM CST
Astronomical Twilight 5:24 AM CST 7:05 PM CST
Moon 12:38 AM CST 10:42 AM CST
Length Of Visible Light 11h 37m
Length of Day
10h 42m
Tomorrow will be 2m 21s longer.
Waning Gibbous, 55% 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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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 32 °F Overcast 11:55 PM CST
St. Charles 31 °F Overcast 11:54 PM CST
Litchfield 31 °F Overcast 11:55 PM CST
St. Louis 32 °F Light Freezing Drizzle 11:51 PM CST
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Flight To ETA Status
SWA970
Las Vegas, NV 		KSTL 12:43AM On Time
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: LIFR (KALN)
Wind Speed: 7.0 kts.
Wind Dir: 170° (South)
Ceiling: 400 ft

METAR KALN 140555Z AUTO 17007KT 5SM BR BKN004 OVC009 00/00 A2987 RMK AO2 60001 T10011004 11001 21007 400251053

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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 30.7 °F 31 °F 28 °F 90% SSW  at  0.0 mph 0.00 in / hr 661 ft 11:59 PM CST Rapid Fire
Alton - Rock Gate Estates, Alton, IL 30.3 °F 30 °F 30 °F 100% SSW  at  0.0 mph 0.00 in / hr 565 ft 8:42 PM CST Rapid Fire
Timber Ridge, Godfrey, IL 31.1 °F 31 °F 30 °F 95% South  at  2.0 mph 0.00 in / hr 485 ft 11:58 PM CST Normal  
Carlinville Firehouse, Carlinville, IL 29.4 °F 29 °F 27 °F 91% NNE  at  0.0 mph 0.00 in / hr 500 ft 12:00 AM CST Rapid Fire  
Alton - Christian Hill Area, Alton, IL 31.0 °F 31 °F 30 °F 97% WSW  at  0.0 mph 0.00 in / hr 610 ft 12:00 AM CST Normal
Alton - Beacon, Alton, IL 31.6 °F 32 °F 31 °F 96% NNW  at  1.0 mph 0.00 in / hr 530 ft 12:00 AM CST Rapid Fire  
Carlinville Sumner Street, Carlinville, IL 30.3 °F 30 °F 29 °F 95% SW  at  0.0 mph 0.00 in / hr 500 ft 12:00 AM CST Rapid Fire  
Rosewood Heights, East Alton, IL 30.7 °F 31 °F 29 °F 92% South  at  3.0 mph 0.00 in / hr 545 ft 12:00 AM CST Rapid Fire  
ADMRL'S Weather Station, Staunton, IL 30.7 °F 25 °F 15 °F 51% South  at  6.0 mph 0.00 in / hr 620 ft 12:00 AM CST Normal
HADS MISSISSIPPI RIVER AT POOL 26 NEA IL, Grafton, IL - - - - North  at  - 0.00 in / hr 430 ft 11:00 PM CST MADIS
MesoWest Carpenter East , Hamel, IL 28 °F 28 °F - - North  at  - 0.00 in / hr 540 ft 9:20 PM CST MADIS
Florissant, MO 31.5 °F 29 °F 31 °F 98% SW  at  3.1 mph 0.00 in / hr 597 ft 11:59 PM CST Rapid Fire  
Rezy Road, Staunton, IL 30.4 °F 25 °F 29 °F 95% South  at  5.0 mph 0.00 in / hr 630 ft 12:00 AM CST Rapid Fire
Quercus Grove Rd, Edwardsville, IL 29.9 °F 30 °F 29 °F 96% South  at  3.0 mph 0.00 in / hr 538 ft 12:00 AM CST Rapid Fire  
Polestar Boating Center, St. Charles, MO 31.5 °F 32 °F 30 °F 96% WSW  at  0.0 mph 0.00 in / hr 449 ft 12:00 AM CST Rapid Fire
Nickel Plate Trail, Edwardsville, IL 31.4 °F 31 °F 30 °F 94% South  at  2.0 mph 0.00 in / hr 545 ft 11:55 PM CST Normal
Esic Drive, Edwardsville, IL 31.8 °F 32 °F 30 °F 93% SSW  at  1.7 mph 0.00 in / hr 545 ft 12:00 AM CST Rapid Fire
Dunlap Lake, Edwardsville, IL 31.5 °F 32 °F 31 °F 96% South  at  2.0 mph 0.00 in / hr 540 ft 11:55 PM CST Normal
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 8:55 PM CST on February 13, 2012

... Winter Weather Advisory now in effect until 6 am CST Tuesday...

* timing... freezing drizzle is likely through the rest of tonight.
There will be a chance of flurries or light snow as well.

* Accumulations... while little or no additional snow accumulation
is expected... a light glazing is likely over many exposed and
untreated surfaces from the freezing drizzle.

* Winds... southerly winds at 10 to 15 mph.

* Impacts... light ice accretion will result in slippery conditions
on untreated and exposed surfaces which could lead to 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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Public Information Statement
Mobile & Email Alerts Statement as of 9:06 PM CST on February 13, 2012

... Prelimnary snowfall totals through 850 PM...


Location snowfall comments
                               in/S/

Cuba MO 5.0 819 PM 2/13
7 S Bland MO 4.5 527 PM 2/13
3 N Union MO 4.5 802 PM 2/13
Bland MO 4.2 730 PM 2/13
Gray Summit MO 4.0 555 PM 2/13
Freeburg IL 3.6 729 PM 2/13
Herculaneum MO 3.5 840 PM 2/13
Festus MO 3.5 734 PM 2/13
2 SW Pevely MO 3.5 711 PM 2/13
Potosi MO 3.5 629 PM 2/13
5 E Linn MO 3.5 532 PM 2/13
Drake MO 3.5 645 PM 2/13
St. Peters MO 3.4 710 PM 2/13
Ashland MO 3.3 600 PM 2/13
3 E Augusta MO 3.3 525 PM 2/13
3 E Cedar Hill MO 3.3 817 PM 2/13
Fulton MO 3.2 822 PM 2/13
1 SW new handover IL 3.2 858 PM 2/13
Belleville IL 3.0 832 PM 2/13
Bourbon MO 3.0 502 PM 2/13
New Melle MO 2.7 608 PM 2/13
Rosebud MO 2.7 507 PM 2/13
Dardenne Prairie MO 2.6 652 PM 2/13
Brighton IL 2.5 712 PM 2/13
Elsah IL 2.5 756 PM 2/13
6 ENE Marthasville MO 2.5 516 PM 2/13
Oakville MO 2.5 643 PM 2/13
Hillsboro MO 2.5 618 PM 2/13
Ballwin MO 2.4 719 PM 2/13
2 SW Fenton MO 2.3 809 PM 2/13
Holts Summit MO 2.3 648 PM 2/13
Fenton MO 2.2 621 PM 2/13
Harvester MO 2.2 609 PM 2/13
Fredericktown MO 2.2 502 PM 2/13
Bowling Green MO 2.1 828 PM 2/13
2 SSE St. Peters MO 2.0 603 PM 2/13
Ellisville MO 2.0 825 PM 2/13
Roxana IL 2.0 834 PM 2/13
St. Charles MO 1.8 547 PM 2/13
St. Louis MO 1.8 727 PM 2/13
Warrenton MO 1.8 744 PM 2/13
Sullivan MO 1.8 518 PM 2/13
Hazelwood MO 1.5 759 PM 2/13
Collinsville IL 1.5 728 PM 2/13
Chesterfield MO 1.5 543 PM 2/13
2 S Farmington MO 1.5 548 PM 2/13
O'Fallon MO 1.5 607 PM 2/13
Columbia IL 1.5 607 PM 2/13
Foristell MO 1.5 810 PM 2/13
Manchester MO 1.3 608 PM 2/13
Ferguson MO 1.1 727 PM 2/13
Lebanon IL 1.1 645 PM 2/13
St. Clair MO 1.0 630 PM 2/13
Troy MO 1.0 530 PM 2/13
Carlinville IL 1.0 647 PM 2/13
1 W Fredericktown MO 1.0 435 PM 2/13
Godfrey IL 0.5 554 PM 2/13
3 ENE French Village MO 0.5 525 PM 2/13
Farmington MO 0.3 442 PM 2/13



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