Area Forecast Discussion
Issued by NWS Chicago, IL

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FXUS63 KLOT 190722
AFDLOT

Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
222 AM CDT Thu Apr 19 2018

.SHORT TERM...
222 AM CDT

Through tonight...

Area of snow moving across portions of northeast Illinois and all
of northwest Indiana will continue to shift to the southeast over
the next couple of hours. As this occurs, expect the current
diminishing trend to also continue, with much of the snow
southeast/east of the area by the 9-10z time frame. Under the
heavier snow which was in place a couple of hours ago, some light
accumulation was possible on some less traveled roads. However,
with the current diminishing trend, would anticipate any
additional light snow accumulation to mainly be on grassy
surfaces.

Rodriguez

&&

.LONG TERM...
222 AM CDT

Friday through Wednesday...

Significant weather not expected at this time.

Rodriguez

&&

.AVIATION...
For the 06Z TAFs...

Snow will come to an end early this morning as the wave forcing
precip pushes southeast. NNW winds will gust up to 20 kt overnight
with IFR cigs improving to VFR. Mainly clear skies are expected
for the rest of the day as high pressure builds over the Upper
Mississippi Valley. I left a late afternoon shift to northeast
winds arnd 10 kt, but I have low confidence in the wind shift.
Northwest winds may be too strong for a lake breeze or shift in
winds. However, I did not have enough confidence to pull the wind
shift entirely. Light northwest winds are expected this evening
and overnight.

JEE

&&

.MARINE...
222 AM CDT

I did not make any changes to the going headlines.

North winds will diminish as high pressure currently over the Plains
builds over the Upper Mississippi Valley today.  High pressure will
remain over the lake through the weekend.  A low pressure system
will move across southern Canada reaching Hudson Bay Monday evening
while a second, weaker low travels across the Gulf states Sunday-mid
next week.  A low pressure system is forecast to reach the Western
Great Lakes mid next week.

JEE

&&

.LOT WATCHES/WARNINGS/ADVISORIES...
IL...None.
IN...None.
LM...Small Craft Advisory...Gary to Michigan City IN until 1 AM Friday.

     Small Craft Advisory...Winthrop Harbor to Gary IN until 7 PM
     Thursday.

&&

$$

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