Nason, IL

1:22 PM CST on February 12, 2012 (GMT -0600)
Elev: 423 ft
Lon: 89.0° W
Lat: 38.2° 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
Nason Weather at a Glance
Updated 1:12 PM CST
Elevation
433 ft
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Now
Clear
Clear
Temperature
33.4 °F
Feels Like 28 °F
Wind(mph)
6.0
Sunrise / Set
6:50 AM
5:30 PM
Moon
Waning Gibbous
Today
Clear 33 °F
Clear
Tonight
Partly Cloudy 18 °F
Partly Cloudy
Tomorrow
Snow Showers 34 | 29 °F
Snow Showers
60% chance of precipitation
Tuesday
Mostly Cloudy 40 | 29 °F
Mostly Cloudy
Wednesday
Partly Cloudy 47 | 38 °F
Partly Cloudy
Thursday
Chance of Rain 49 | 31 °F
Chance of Rain
40% chance of precipitation
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.48 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
47%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KMVN 121915Z AUTO 29008KT 250V360 10SM CLR 00/M12 A3046 RMK AO1
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Weather Radio
Launch Weather Radio
Temperature
Windchill
28 °F
Dew Point
15 °F
Wind
Speed / Dir
6.0 mph from West
Wind Gust
14.0 mph
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 Jefferson
Today
sunny Sunny. Highs in the lower 30s. Northwest winds 10 to 15 mph.
Tonight
nt_sunny Mostly clear. Lows around 19. West winds around 5 mph in the evening shifting to the south 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 in the evening...then snow showers likely...a chance of freezing drizzle and sleet after midnight. Lows around 30. South winds 10 to 15 mph. Chance of precipitation near 100 percent.
Tuesday
cloudy Mostly cloudy. Highs in the upper 30s. West winds 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows in the upper 20s.
Wednesday
partlysunny Partly sunny. Highs in the upper 40s.
Wednesday Night
nt_rain Rain likely. Lows in the upper 30s. Chance of precipitation 60 percent.
Thursday
chancerain Partly sunny with a 40 percent chance of rain. Highs in the upper 40s.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows around 30.
Source: NWS at 5:36 am CST on February 12, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 62866
Sunday, 12
Clear
33 | 18 °F
Clear
Chance of
Precipitation
0%
Monday, 13
Snow Showers
34 | 29 °F
Snow Showers
Chance of
Precipitation
60%
Tuesday, 14
Mostly Cloudy
40 | 29 °F
Mostly Cloudy
Chance of
Precipitation
10%
Wednesday, 15
Partly Cloudy
47 | 38 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Chance of Rain
49 | 31 °F
Chance of Rain
Chance of
Precipitation
40%
Friday, 17
Partly Cloudy
45 | 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 Jefferson
Today
sunny Sunny. Highs in the lower 30s. Northwest winds 10 to 15 mph.
Tonight
nt_sunny Mostly clear. Lows around 19. West winds around 5 mph in the evening shifting to the south after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 16 | 4 29 | 0 29 | 4 22 | 4
Wind 6 mph WNW 9 mph WNW 5 mph West 2 mph South
Humidity 58% 29% 35% 45%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 0% 14% 19%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
6:50 AM
5:30 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Jefferson
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 in the evening...then snow showers likely...a chance of freezing drizzle and sleet after midnight. Lows around 30. 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 31 | 16 34 | 25 31 | 27
Wind 5 mph South 9 mph South 9 mph SSE 8 mph South
Humidity 61% 51% 68% 88%
Chance of Precip. 0% 60% 60% 100%
Cloud Cover 75% 99% 99% 99%
Conditions Mostly Cloudy Snow Showers Snow Ice Pellets
Sunrise & Sunset
6:49 AM
5:31 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Jefferson
Tuesday
cloudy Mostly cloudy. Highs in the upper 30s. West winds 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy. Lows in the upper 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 27 38 | 31 36 | 31 31 | 29
Wind 5 mph SSW 6 mph WNW 4 mph West 1 mph SSW
Humidity 88% 75% 81% 88%
Chance of Precip. 100% 10% 10% 0%
Cloud Cover 94% 73% 47% 38%
Conditions Overcast Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
6:47 AM
5:32 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Jefferson
Wednesday
partlysunny Partly sunny. Highs in the upper 40s.
Wednesday Night
nt_rain Rain likely. Lows in the upper 30s. Chance of precipitation 60 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 27 43 | 36 45 | 36 40 | 40
Wind 2 mph South 6 mph SSE 6 mph SSE 5 mph SSE
Humidity 92% 73% 72% 96%
Chance of Precip. 0% 10% 10% 60%
Cloud Cover 59% 67% 85% 95%
Conditions Partly Cloudy Partly Cloudy Rain Rain
Sunrise & Sunset
6:46 AM
5:33 PM
Source: NWS at 5:36 am CST on February 12, 2012
Regional Forecast for Jefferson
Thursday
chancerain Partly sunny with a 40 percent chance of rain. Highs in the upper 40s.
Thursday Night
nt_partlycloudy Partly cloudy. Lows in the lower 30s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 40 | 38 45 | 40 43 | 36 36 | 32
Wind 4 mph SSW 7 mph West 6 mph West 6 mph WNW
Humidity 96% 82% 73% 84%
Chance of Precip. 60% 40% 40% 10%
Cloud Cover 88% 69% 41% 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 Jefferson
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 32 | 27 41 | 27 40 | 29 34 | 25
Wind 6 mph WNW 8 mph WNW 6 mph WNW 2 mph WSW
Humidity 81% 57% 62% 66%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 37% 31% 28% 18%
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 Jefferson
Friday through Saturday
sunny Mostly clear. Highs in the upper 40s. Lows around 30.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 23 45 | 29 40 | 29 34 | 25
Wind 2 mph West 5 mph SSW 6 mph WNW 2 mph WSW
Humidity 71% 52% 62% 66%
Chance of Precip. 10% 0% 10% 10%
Cloud Cover 14% 16% 28% 18%
Conditions Clear Clear Partly Cloudy Clear
Sunrise & Sunset
6:45 AM
5:35 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 12, 2012 Max Temp Min Temp
Normal (KMVN) 42 °F 27 °F
Record (KMVN) 59 °F (2005) 17 °F (2006)
Yesterday 28.2 °F 19.8 °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 6:50 AM CST 5:30 PM CST
Civil Twilight 6:22 AM CST 5:57 PM CST
Nautical Twilight 5:51 AM CST 6:28 PM CST
Astronomical Twilight 5:21 AM CST 6:59 PM CST
Moon 11:21 PM CST 9:14 AM CST
Length Of Visible Light 11h 34m
Length of Day
10h 40m
Tomorrow will be 2m 14s longer.
Waning Gibbous, 71% 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
35 °F
Cairo
35 °F
Olney-Noble
34 °F
Peru
33 °F
Mattoon
33 °F
Joliet
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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Aviation
City Temp. Conditions Updated
Mount Vernon 32 °F Clear 1:15 PM CST
Centralia 32 °F Clear 1:15 PM CST
Marion Regional 34 °F Clear 12:55 PM CST
Carbondale 32 °F Clear 12:52 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 (KMVN)
Wind Speed: 8.0 kts.
Wind Dir: 271° (West)
Ceiling: Unlimited

METAR KMVN 121915Z AUTO 29008KT 250V360 10SM CLR 00/M12 A3046 RMK AO1

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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
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 CASEY FORK SUBIMPOUNDMENT NEAR B IL, Bonnie, IL - - - - North  at  - 0.00 in / hr 399 ft 12:30 PM CST MADIS
HADS RAYSE CREEK NEAR WALTONVILLE IL, Scheller, IL - - - - North  at  - 0.00 in / hr 412 ft 12:30 PM CST MADIS
HADS REND LAKE NEAR REND IL, Benton, IL - - - - North  at  - 0.00 in / hr 455 ft 12:30 PM CST MADIS
Northeast of Benton, Benton, IL 33.4 °F 28 °F 15 °F 47% West  at  6.0 mph 0.00 in / hr 433 ft 1:12 PM CST Normal
Buckner, IL 32.6 °F 24 °F 11 °F 40% NW  at  12.0 mph 0.00 in / hr 410 ft 1:22 PM CST Rapid Fire
DuBois, IL 32.4 °F 32 °F 13 °F 44% North  at  0.0 mph 0.00 in / hr 524 ft 1:22 PM CST Rapid Fire  
Mulkeytown Fresh Farm, Mulkeytown, IL 32.0 °F 26 °F 11 °F 41% NW  at  7.0 mph 0.00 in / hr 437 ft 1:18 PM CST Normal
HADS BIG MUDDY RIVER AT PLUMFIELD IL, Zeigler, IL - - - - North  at  - 0.00 in / hr 404 ft 12:30 PM CST MADIS
1.7 mi. N of, Thompsonville, IL 33.8 °F 29 °F 12 °F 40% West  at  5.6 mph - / hr 490 ft 1:13 PM CST Normal  
MesoWest Kell , Dix, IL 23 °F 23 °F - - North  at  - 0.00 in / hr 507 ft 12:15 PM CST MADIS
New Bush, Royalton, IL 33.5 °F 27 °F 15 °F 47% NW  at  7.0 mph 0.00 in / hr 395 ft 1:20 PM CST Normal  
W9AEG, Centralia, IL 31.7 °F 25 °F 11 °F 41% West  at  7.0 mph 0.00 in / hr 530 ft 1:22 PM CST Rapid Fire  
Oxbow, Pinckneyville, IL 38.1 °F 35 °F 5 °F 25% WSW  at  4.5 mph 0.00 in / hr 440 ft 1:22 PM CST Rapid Fire  
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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.