Herrin, IL

12:38 PM CST on February 12, 2012 (GMT -0600)
Elev: 417 ft
Lon: 89.0° W
Lat: 37.8° N
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Active Advisory: Special Weather Statement (US Severe Weather)
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Kari Kiefer
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Weather Underground Forecast for Sunday, February 12, 2012.

The East dries out on Sunday, but wet weather continues moving through the West. A trough of low pressure advances eastward over the Great Basin and Central Rockies, producing moderate snow showers over Utah and Colorado. Winter weather advisories have been issued for parts of western Colorado as snowfall accumulations may reach from 6 to 8 inches by Sunday evening. Most of Utah, western Wyoming, and northern New Mexico should see lighter snow showers with accumulation around 1 to 2 inches. The tail end of this trough will extend into western Texas, bringing snow and freezing rain showers into northwestern Texas. Precipitation from this system will move into the Texas Panhandle late Sunday into Monday morning. Winter storm warnings have been issued for the region as 3 to 5 inches of snow are possible, with ice accumulations from 0.10 to 0.30 inches by Sunday evening. This will cause dangerous roads and travel conditions.

Meanwhile, another trough of low pressure and associated cold front approach the West Coast on Sunday. This system will reach the coasts of the Pacific Northwest and northern California in the afternoon and evening hours, bringing more rain showers. Temperatures will remain cool over most of the West Coast as this system pushes clouds and moisture onshore.

In the East, a strong ridge of high pressure allows for dry, sunny, and cool weather to persist. This system creates strong flow from the north, pushing cold air into the Plains and Eastern Valleys. Expect highs to range in the 20s in the Midwest, while the Ohio River Valley and Tennessee Valleys will see highs in the 30s. Freeze advisories have been issued for the Gulf states as low temperatures will drop into the 20s Sunday night. Dangerous fire conditions spread over the Southeastern states due to high pressure creating a very dry airmas with strong winds.
Weather Underground Broadcast Network
Herrin Weather at a Glance
Updated 10:47 AM CST
Weather Station
Marion Regional (KMWA)
Elevation
469 ft
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Now
Clear
Clear
Temperature
28 °F
Feels Like 18 °F
Wind(mph)
12
Sunrise / Set
6:49 AM
5:31 PM
Moon
Waning Gibbous
Today
Clear 34 °F
Clear
Tonight
Partly Cloudy 18 °F
Partly Cloudy
Tomorrow
Snow Showers 36 | 31 °F
Snow Showers
60% chance of precipitation
Tuesday
Mostly Cloudy 40 | 29 °F
Mostly Cloudy
Wednesday
Chance of Rain 49 | 40 °F
Chance of Rain
20% chance of precipitation
Thursday
Chance of Rain 49 | 31 °F
Chance of Rain
40% chance of precipitation
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.53 in
Visibility
20.0 miles
Clouds
Clear -
Moisture
Humidity
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KMWA 121647Z 31010KT 20SM SKC M02/ A3053
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Weather Radio
Weather Radio Index
Temperature
Windchill
18 °F
Wind
Speed / Dir
12 mph from NW
Wind Gust
Health
UV
4 out of 16
Pollen
.90 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Regional
View Flu Map
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Regional Forecast for Williamson
Today
partlycloudy Mostly sunny. Highs in the mid 30s. Northwest winds 5 to 10 mph.
Tonight
nt_sunny Mostly clear. Lows around 19. Southwest winds 5 mph in the evening shifting to the south around 5 mph after midnight.
Monday
snow Cloudy. Snow showers likely in the afternoon. Snow accumulation up to 1 inch. Highs in the mid 30s. South winds 10 to 15 mph. Chance of precipitation 60 percent.
Monday Night
nt_snow Occasional snow and patchy freezing drizzle in the evening...then snow showers likely...a chance of freezing drizzle and sleet after midnight. Lows in the lower 30s. South winds 10 to 15 mph. Chance of precipitation near 100 percent.
Tuesday
cloudy Mostly cloudy. Highs in the lower 40s. West winds 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows around 30.
Wednesday
partlysunny Partly sunny with a 20 percent chance of rain. Highs in the upper 40s.
Wednesday Night
nt_rain Rain likely. Lows in the lower 40s. Chance of precipitation 60 percent.
Thursday
chancerain Partly sunny with a 40 percent chance of rain. Highs around 50.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows in the lower 30s.
Source: NWS at 5:36 am CST on February 12, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 62948
Sunday, 12
Clear
34 | 18 °F
Clear
Chance of
Precipitation
0%
Monday, 13
Snow Showers
36 | 31 °F
Snow Showers
Chance of
Precipitation
60%
Tuesday, 14
Mostly Cloudy
40 | 29 °F
Mostly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Chance of Rain
49 | 40 °F
Chance of Rain
Chance of
Precipitation
20%
Thursday, 16
Chance of Rain
49 | 31 °F
Chance of Rain
Chance of
Precipitation
40%
Friday, 17
Partly Cloudy
47 | 31 °F
Partly Cloudy
Chance of
Precipitation
10%
Saturday, 18
Clear
49 | NA
Clear
Chance of
Precipitation
0%
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Today
partlycloudy Mostly sunny. Highs in the mid 30s. Northwest winds 5 to 10 mph.
Tonight
nt_sunny Mostly clear. Lows around 19. Southwest winds 5 mph in the evening shifting to the south around 5 mph after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 4 29 | 2 29 | 2 22 | 4
Wind 5 mph WNW 9 mph WNW 5 mph West 4 mph South
Humidity 53% 29% 30% 45%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 2% 22% 20%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
6:49 AM
5:31 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Monday
snow Cloudy. Snow showers likely in the afternoon. Snow accumulation up to 1 inch. Highs in the mid 30s. South winds 10 to 15 mph. Chance of precipitation 60 percent.
Monday Night
nt_snow Occasional snow and patchy freezing drizzle in the evening...then snow showers likely...a chance of freezing drizzle and sleet after midnight. Lows in the lower 30s. South winds 10 to 15 mph. Chance of precipitation near 100 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 9 32 | 13 34 | 25 31 | 27
Wind 5 mph South 8 mph South 8 mph South 8 mph South
Humidity 64% 42% 66% 85%
Chance of Precip. 0% 60% 60% 100%
Cloud Cover 78% 99% 99% 99%
Conditions Mostly Cloudy Snow Showers Snow Ice Pellets
Sunrise & Sunset
6:48 AM
5:32 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Tuesday
cloudy Mostly cloudy. Highs in the lower 40s. West winds 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 38 | 31 36 | 32 31 | 29
Wind 5 mph SSW 6 mph WNW 4 mph West 1 mph SSW
Humidity 84% 78% 84% 91%
Chance of Precip. 100% 10% 10% 0%
Cloud Cover 94% 72% 44% 37%
Conditions Overcast Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:47 AM
5:33 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Wednesday
partlysunny Partly sunny with a 20 percent chance of rain. Highs in the upper 40s.
Wednesday Night
nt_rain Rain likely. Lows in the lower 40s. Chance of precipitation 60 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 29 45 | 36 47 | 38 43 | 40
Wind 2 mph South 6 mph SSE 6 mph SSE 5 mph SSE
Humidity 95% 73% 70% 92%
Chance of Precip. 0% 20% 20% 60%
Cloud Cover 60% 64% 84% 95%
Conditions Chance of Rain Chance of Rain Rain Rain
Sunrise & Sunset
6:46 AM
5:34 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Thursday
chancerain Partly sunny with a 40 percent chance of rain. Highs around 50.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 41 | 40 47 | 40 43 | 36 36 | 34
Wind 4 mph SW 7 mph West 6 mph West 5 mph WNW
Humidity 92% 79% 76% 88%
Chance of Precip. 60% 40% 40% 10%
Cloud Cover 86% 67% 40% 37%
Conditions Chance of Rain Chance of Rain Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:45 AM
5:35 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 32 | 29 43 | 27 41 | 29 34 | 25
Wind 6 mph WNW 7 mph WNW 6 mph WNW 2 mph WSW
Humidity 85% 55% 62% 69%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 36% 30% 28% 16%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
6:45 AM
5:35 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Williamson
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 25 45 | 29 41 | 29 34 | 25
Wind 2 mph West 4 mph SSW 6 mph WNW 2 mph WSW
Humidity 75% 52% 62% 69%
Chance of Precip. 10% 0% 10% 10%
Cloud Cover 13% 15% 28% 16%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
6:45 AM
5:35 PM
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Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 12, 2012 Max Temp Min Temp
Normal 42 °F 21 °F
Record 65 °F (1984) -5 °F (1981)
Yesterday 45 °F 19 °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
Astronomy
Feb. 12, 2012 Rise Set
Actual Time 6:49 AM CST 5:31 PM CST
Civil Twilight 6:22 AM CST 5:58 PM CST
Nautical Twilight 5:51 AM CST 6:29 PM CST
Astronomical Twilight 5:21 AM CST 6:59 PM CST
Moon 11:21 PM CST 9:15 AM CST
Length Of Visible Light 11h 35m
Length of Day
10h 41m
Tomorrow will be 2m 13s longer.
Waning Gibbous, 72% 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
33 °F
Cairo
32 °F
Harrisburg
32 °F
Belleville
32 °F
Flora
32 °F
Lincoln
12 °F
Aurora
12 °F
Quincy
13 °F
Rochelle
13 °F
Freeport
14 °F
DeKalb
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Aviation
City Temp. Conditions Updated
Marion Regional 28 °F Clear 10:47 AM CST
Carbondale 30 °F Clear 11:52 AM CST
Harrisburg 34 °F Clear 12:35 PM CST
Mount Vernon 30 °F Clear 12:35 PM CST
View all Aviation Tools
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KMWA)
Wind Speed: 10.0 kts.
Wind Dir: 310° (NW)
Ceiling: Unlimited

METAR KMWA 121647Z 31010KT 20SM SKC M02/ A3053

View all Reports & Maps
Nearby Events
Event Date Forecast
Story Hour 11:00 AM CST 2012-02-14 Mostly Cloudy, 39°F
iPad for Educators 8:00 AM CST 2012-02-15 Fog, 34°F
FCHS Class of 1949 Luncheon 10:00 AM CST 2012-02-18 Clear, 40°F
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
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 12, 2012 Mostly Cloudy, 45 °F
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 61 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
HADS BIG MUDDY RIVER AT PLUMFIELD IL, Zeigler, IL - - - - North  at  - 0.00 in / hr 404 ft 11:30 AM CST MADIS
New Bush, Royalton, IL 31.9 °F 24 °F 15 °F 49% WNW  at  10.0 mph 0.00 in / hr 395 ft 12:35 PM CST Normal  
RAWS CRAB ORCHARD IL, Energy, IL 31 °F 24 °F 7 °F 35% WNW  at  8 mph 0.00 in / hr 450 ft 11:48 AM CST MADIS
Mulkeytown Fresh Farm, Mulkeytown, IL 30.5 °F 24 °F 10 °F 42% NW  at  6.0 mph 0.00 in / hr 437 ft 12:38 PM CST Normal
Public Works, Carbondale, IL 31.1 °F 23 °F 9 °F 39% NNW  at  9.0 mph 0.00 in / hr 400 ft 12:37 PM CST Normal  
Buckner, IL 31.5 °F 25 °F 12 °F 44% NW  at  7.5 mph 0.00 in / hr 410 ft 12:38 PM CST Rapid Fire
Northeast of Benton, Benton, IL 32.0 °F 23 °F 13 °F 46% NW  at  11.0 mph 0.00 in / hr 433 ft 12:27 PM CST Normal
HADS REND LAKE NEAR REND IL, Benton, IL - - - - North  at  - 0.00 in / hr 455 ft 11:30 AM CST MADIS
1.7 mi. N of, Thompsonville, IL 33.8 °F 26 °F 11 °F 38% NW  at  9.8 mph - / hr 490 ft 12:27 PM CST Normal  
HADS BIG MUDDY RIVER AT MURPHYSBORO IL, Murphysboro, IL - - - - North  at  - 0.00 in / hr 549 ft 11:30 AM CST MADIS
MesoWest Murphysboro , Murphysboro, IL 28 °F 28 °F - - North  at  - 0.00 in / hr 379 ft 11:10 AM CST MADIS
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Special Weather Statement
Mobile & Email Alerts Statement as of 3:38 AM CST on February 12, 2012

... Winter weather event likely Monday and Monday night...

Moisture will over spread the region Monday... ahead of an upper
level storm system... forecast to be over western Missouri by
Monday evening. The wintry precipitation may be slow to develop
initially Monday west of the Mississippi River over southeast
Missouri... as the airmass will be very dry across the region.
However by afternoon... wintry precipitation should work its way to
the surface... with the activity spreading east from southeast
Missouri Monday afternoon... to areas east of the Mississippi River
including southern Illinois... southwest Indiana and west Kentucky
late Monday afternoon into Monday evening.

Most of the wintry precipitation is expected to be in the form
of snow. However... mixed wintry precipitation is possible as well
with this event... especially south of the Ohio River... and
over southeast Missouri.

Preliminary indications suggest no less than 1 to 2 inches may
accumulate most areas. Some data suggests higher amounts will
be possible. Given the Prospect for mixed wintry precipitation
and the variance seen in the model data... it is still a bit too
soon to gauge snowfall amounts with much confidence. The latest
data suggests higher precipitation rates will occur south of a
line from Perryville Missouri to Owensboro Kentucky which is also
where the best chance of a wintry mix will occur. The best chance
of any freezing rain will be west of the Mississippi River Monday
evening.

Despite the uncertainties with respect to snow amounts... it does
appear that travel impacts will be possible Monday night. Surface
temperatures... antecedent Road conditions... and precipitation
rates will all play a role in the level of impact. Given the cold
air well established across the region ahead of the approaching
system... accumulation will begin shortly after onset.

So... stay tuned for the latest updates. It is possible either
a watch... warning or advisory may be required for the upcoming
event.