Area Forecast Discussion
Issued by NWS Central Illinois

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FXUS63 KILX 162334
AFDILX

Area Forecast Discussion
National Weather Service Lincoln IL
534 PM CST Tue Jan 16 2018

.SHORT TERM...(This evening through Wednesday)
ISSUED AT 228 PM CST Tue Jan 16 2018

Sharp upper trough extending from Lower Michigan to Missouri is
currently creating enough synoptic lift to trigger scattered snow
showers across central Illinois. Visibilities have occasionally
been reduced to around 2 miles: however, accumulations have been
been minimal. Satellite trends show partial clearing behind the
trough axis across Iowa and northern Illinois, so am expecting
clouds to hang on for a few more hours before skies clear from
northwest to southeast after sunset. Overnight lows will be in the
single digits above zero...with wind-chills from five below to ten
below zero. Sunshine will return to the picture on Wednesday,
allowing temperatures to slowly moderate into the lower 20s.

.LONG TERM...(Wednesday night through Tuesday)
ISSUED AT 228 PM CST Tue Jan 16 2018

Its smooth sailing for much of the extended. After one more cold
night Wednesday night, a marked warming trend will get underway
for the end of the week. Temperatures will climb into the 30s on
Thursday...then will soar into the 50s by Saturday and Sunday. As
has been well-advertised for the past several days, the next
storm system of note will not impact the region until late in the
weekend...resulting in rain chances arriving by Saturday night and
Sunday. In fact, if the GFS low track across central Illinois
verifies, would not be surprised to see some isolated thunder
introduced to the forecast Sunday/Sunday night. After the system
passes, mild and dry weather will return early next week with
temperatures in the 40s.

&&

.AVIATION...(For the 00Z TAFS through 00Z Wednesday evening)
Issued at 534 PM CST Tue Jan 16 2018

MVFR ceilings are rapidly clearing from north to south across the
area late this afternoon...with latest IR satellite imagery
showing the back edge of the clouds along I-72. Have held on to
MVFR ceilings at KDEC through 01z and KSPI through 02z...then have
gone clear at all terminals through the remainder of the 00z TAF
period. Winds will initially be from the W/NW at less than 10kt
tonight, then will back to W/SW by late Wednesday morning into the
afternoon.

&&

.ILX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SHORT TERM...Barnes
LONG TERM...Barnes
AVIATION...Barnes



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