Marissa, IL

12:26 PM CST on February 13, 2012 (GMT -0600)
Elev: 433 ft
Lon: 89.8° W
Lat: 38.3° 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
Marissa Weather at a Glance
Updated 12:15 PM CST
Weather Station
Sparta (KSAR)
Elevation
538 ft
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Now
Mostly Cloudy
Mostly Cloudy
Temperature
34 °F
Feels Like 25 °F
Wind(mph)
12
Sunrise / Set
6:52 AM
5:34 PM
Moon
Waning Gibbous
Today
Snow 36 °F
Snow
80% chance of precipitation
Tonight
Ice Pellets 31 °F
Ice Pellets
100% chance of precipitation
Tomorrow
Partly Cloudy 40 | 29 °F
Partly Cloudy
Wednesday
Chance of Snow 45 | 41 °F
Chance of Snow
50% chance of precipitation
Thursday
Chance of Rain 50 | 31 °F
Chance of Rain
20% chance of precipitation
Friday
Partly Cloudy 45 | 29 °F
Partly Cloudy
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.10 in
Visibility
10.0 miles
Clouds
Mostly Cloudy 6000 ft
Moisture
Humidity
52%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KSAR 131815Z AUTO 17010G14KT 10SM BKN060 01/M08 A3010 RMK AO2
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Weather Radio
Launch Weather Radio
Temperature
Windchill
25 °F
Dew Point
18 °F
Wind
Speed / Dir
12 mph from South
Wind Gust
16 mph
Health
UV
3 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 St. Clair
This Afternoon
chancesnow Snow. Snow accumulation around 1 inch. High in the mid 30s. Temperature steady or slowly falling through late afternoon. South wind 10 to 15 mph. Chance of snow near 100 percent.
Tonight
nt_snow Snow in the evening...then scattered snow showers and patchy freezing drizzle after midnight. Snow accumulation of 2 to 3 inches. Total snow accumulation 3 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 cloudy. High around 40. West wind around 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Low in the upper 20s. Light wind.
Wednesday
chancerain Partly sunny early in the morning then becoming mostly cloudy. Chance of rain in the late morning and afternoon. High in the mid 40s. South wind around 10 mph. Chance of rain 50 percent.
Wednesday Night
nt_rain Rain likely. Low around 40. Chance of rain 70 percent.
Thursday
cloudy Mostly cloudy in the morning then becoming partly sunny. High around 50.
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 around 30.
Source: NWS at 12:21 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 62257
Monday, 13
Snow
36 | 31 °F
Snow
Chance of
Precipitation
80%
Tuesday, 14
Partly Cloudy
40 | 29 °F
Partly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Chance of Snow
45 | 41 °F
Chance of Snow
Chance of
Precipitation
50%
Thursday, 16
Chance of Rain
50 | 31 °F
Chance of Rain
Chance of
Precipitation
20%
Friday, 17
Partly Cloudy
45 | 29 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 18
Partly Cloudy
50 | 31 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 19
Partly Cloudy
49 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
This Afternoon
chancesnow Snow. Snow accumulation around 1 inch. High in the mid 30s. Temperature steady or slowly falling through late afternoon. South wind 10 to 15 mph. Chance of snow near 100 percent.
Tonight
nt_snow Snow in the evening...then scattered snow showers and patchy freezing drizzle after midnight. Snow accumulation of 2 to 3 inches. Total snow accumulation 3 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 22 | 13 31 | 18 34 | 27 32 | 29
Wind 5 mph South 12 mph South 9 mph South 8 mph South
Humidity 64% 56% 75% 84%
Chance of Precip. 10% 80% 80% 100%
Cloud Cover 86% 100% 100% 100%
Conditions Chance of Snow Snow Snow Ice Pellets
Sunrise & Sunset
6:52 AM
5:34 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
Tuesday
cloudy Mostly cloudy in the morning and early afternoon then becoming partly cloudy. High around 40. 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 31 | 29 38 | 34 38 | 32 32 | 27
Wind 5 mph SSW 6 mph West 4 mph West 2 mph South
Humidity 91% 85% 82% 81%
Chance of Precip. 100% 10% 10% 10%
Cloud Cover 100% 73% 27% 41%
Conditions Overcast Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:51 AM
5:35 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
Wednesday
chancerain Partly sunny early in the morning then becoming mostly cloudy. Chance of rain in the late morning and afternoon. High in the mid 40s. South wind around 10 mph. Chance of rain 50 percent.
Wednesday Night
nt_rain Rain likely. Low around 40. Chance of rain 70 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 40 | 38 45 | 40 43 | 40
Wind 4 mph South 6 mph SSE 6 mph SSE 6 mph South
Humidity 88% 88% 82% 92%
Chance of Precip. 10% 50% 50% 70%
Cloud Cover 46% 74% 100% 98%
Conditions Chance of Snow Chance of Rain Rain Rain
Sunrise & Sunset
6:49 AM
5:36 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
Thursday
cloudy Mostly cloudy in the morning then becoming partly sunny. High around 50.
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 43 | 41 49 | 40 45 | 34 38 | 31
Wind 6 mph SW 11 mph West 8 mph WNW 6 mph WNW
Humidity 96% 73% 67% 78%
Chance of Precip. 70% 20% 20% 10%
Cloud Cover 65% 55% 41% 35%
Conditions Chance of Rain Chance of Rain Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:48 AM
5:38 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
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 34 | 27 43 | 29 41 | 27 34 | 25
Wind 6 mph WNW 7 mph WNW 6 mph WNW 2 mph West
Humidity 78% 57% 57% 69%
Chance of Precip. 10% 10% 10% 0%
Cloud Cover 39% 27% 25% 26%
Conditions Partly Cloudy Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
6:47 AM
5:39 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
Saturday through Sunday
partlycloudy Partly cloudy. High around 50. Low around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 25 45 | 31 45 | 31 38 | 31
Wind 1 mph WSW 6 mph West 2 mph SW 4 mph West
Humidity 78% 57% 57% 76%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 26% 28% 40% 35%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:47 AM
5:39 PM
Source: NWS at 12:21 PM CST on February 13, 2012
Regional Forecast for St. Clair
Saturday through Sunday
partlycloudy Partly cloudy. High around 50. Low around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 34 | 27 45 | 31 45 | 31 38 | 31
Wind 2 mph West 5 mph SSW 2 mph SW 4 mph West
Humidity 75% 57% 57% 76%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 34% 36% 40% 35%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:47 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 (KBLV) 43 °F 25 °F
Record (KBLV) 81 °F (1962) 0 °F (1982)
Yesterday 36 °F 18 °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 6:52 AM CST 5:34 PM CST
Civil Twilight 6:25 AM CST 6:01 PM CST
Nautical Twilight 5:54 AM CST 6:32 PM CST
Astronomical Twilight 5:23 AM CST 7:03 PM CST
Moon No Moon Rise 9:57 AM CST
Length Of Visible Light 11h 36m
Length of Day
10h 42m
Tomorrow will be 2m 15s longer.
Waning Gibbous, 61% 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
Peru
36 °F
Robinson
36 °F
Lacon
35 °F
Champaign
35 °F
Cahokia
11 °F
Rochelle
12 °F
Aurora
12 °F
Chicago DuPage
12 °F
Freeport
12 °F
Sterling
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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News
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Travel Planning
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Aviation
City Temp. Conditions Updated
Sparta 34 °F Mostly Cloudy 12:15 PM CST
Belleville 34 °F Partly Cloudy 11:55 AM CST
Cahokia 34 °F Overcast 11:53 AM CST
Centralia 34 °F Overcast 12:15 PM 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 (KSAR)
Wind Speed: 10.0 kts.
Wind Dir: 170° (South)
Ceiling: 6000 ft

METAR KSAR 131815Z AUTO 17010G14KT 10SM BKN060 01/M08 A3010 RMK AO2

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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 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 Partly Cloudy, 65 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 65 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
HADS KASKASKIA RIVER NEAR RED BUD IL, Baldwin, IL - - - - North  at  - 0.00 in / hr 430 ft 11:30 AM CST MADIS
HADS KASKASKIA RIVER AT FAYETTEVILLE IL, Saint Libory, IL - - - - North  at  - 0.00 in / hr 381 ft 11:30 AM CST MADIS
HADS RICHLAND CREEK NEAR HECKER IL, Hecker, IL - - - - North  at  - 0.00 in / hr 435 ft 11:30 AM CST MADIS
Okawville, IL 34.1 °F 24 °F 22 °F 61% SSW  at  15.0 mph 0.00 in / hr 450 ft 12:26 PM CST Rapid Fire
Hunters Creek, Mascoutah, IL 34.2 °F 28 °F 19 °F 54% SSE  at  7.0 mph 0.00 in / hr 420 ft 12:26 PM CST Rapid Fire  
Near the Library, New Baden, IL 35.1 °F 32 °F 18 °F 51% South  at  4.0 mph 0.00 in / hr 465 ft 12:25 PM CST Normal
Green Mount Manor, Belleville, IL 34.7 °F 27 °F 16 °F 45% South  at  10.4 mph 0.00 in / hr 489 ft 12:25 PM CST Normal  
Oxbow, Pinckneyville, IL 25.9 °F 26 °F 13 °F 58% SE  at  0.7 mph 0.00 in / hr 440 ft 12:26 PM CST Rapid Fire  
SW of Aviston, Aviston, IL 34.0 °F 34 °F 20 °F 57% South  at  0.0 mph 0.00 in / hr 465 ft 12:26 PM CST Rapid Fire  
Jim's Back Yard, Trenton, IL 33.6 °F 34 °F 21 °F 59% ENE  at  1.0 mph 0.00 in / hr 0 ft 12:26 PM CST Rapid Fire  
HADS MISSISSIPPI RIVER AT CHESTER IL, Menard, IL - - - - North  at  - 0.00 in / hr 459 ft 11:30 AM CST MADIS
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 3:30 AM CST on February 13, 2012

... Winter Weather Advisory remains in effect from 9 am this
morning to midnight CST tonight...

* timing... snow will begin during the mid-morning hours and
persist through much of the evening. 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
late afternoon and early 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.