... 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.
Marion, IL
Current Conditions
20 °F
Clear
Updated — 7:15 AM CST on February 12, 2012
Local Radar
-
Marion Regional
18 °F - Clear
-
Harrisburg
21 °F - Clear
-
Carbondale
18 °F - Clear
-
Metropolis
20 °F - Clear
Forecast for Williamson (62959)
|
Sunday
Clear
H 34° / L 18°
|
Monday
 Ice Pellets
H 34° / L 31°
|
Tuesday
 Mostly Cloudy
H 40° / L 29°
|
Wednesday
 Partly Cloudy
H 49° / L 40°
|
Thursday
 Chance of Rain
H 52° / L 32°
|
Mostly sunny. Highs in the mid 30s. Northwest winds 5 to 10 mph.
TonightMostly clear. Lows around 19. Southwest winds 5 mph in the evening shifting to the south around 5 mph after midnight.
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 NightOccasional 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.
Mostly cloudy. Highs in the lower 40s. West winds 5 to 10 mph.
Tuesday NightPartly cloudy. Lows around 30.
Partly sunny with a 20 percent chance of rain. Highs in the upper 40s.
Wednesday NightRain likely. Lows in the lower 40s. Chance of precipitation 60 percent.
Partly sunny with a 40 percent chance of rain. Highs around 50.
Thursday NightPartly cloudy. Lows in the lower 30s.
Statement as of 3:38 am CST on February 12, 2012
Special Weather Statement
