Area Forecast Discussion
Issued by NWS Quad Cities, IA IL

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985
FXUS63 KDVN 212311
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
511 PM CST Tue Nov 21 2017

...00Z AVIATION UPDATE...

.SYNOPSIS...
Issued at 325 PM CST Tue Nov 21 2017

Strong cold front that moved through the dvn cwa this morning and
brought a brief period of light rain and sleet, extended from
lower MI to north TX. 3hr pres falls of 8 mb was noted just
northeast of Lake Superior and strong subsidence had cleared the
skies this afternoon. Winds have been gusting to 35 to 40 mph
today but recently have diminished somewhat this afternoon.
Temperatures were in the 30s in the cwa this afternoon with wind
chills in the teens and 20s.

&&

.SHORT TERM...(This Evening through Wednesday)
ISSUED AT 325 PM CST Tue Nov 21 2017

Cold in the short term.

Tonight: Canadian high pressure will push into the cwa with winds
quickly diminishing by sunset. With clear skies and rather light
winds later tonight, temperatures should plummet into the teens to
around 20 by sunrise.

Wednesday: The high pressure ridge will shift to our southeast
allowing winds to back to the southwest. Later in the day warm air
advection will allow for some increase in cirrus clouds. Despite
plenty of sunshine and rather light winds, temperatures will
remain chilly with highs in the 30s to near 40.

.LONG TERM...(Wednesday Night through Tuesday)
ISSUED AT 325 PM CST Tue Nov 21 2017

Forecast focus on a quiet weather pattern for the remainder of
this month and at least into the first week of December. No
significant precipitation is expected. The storm track will be
across MN and WI or southern Canada with a roller-coaster ride of
temperatures expected.

&&

.AVIATION...(For the 00Z TAFS through 00Z Wednesday Evening)
ISSUED AT 510 PM CST Tue Nov 21 2017

Initially gusty northwest winds close to 15 kts will diminish to
10 kts or less this evening as high pressure over the northern
plains spreads into the area. This will also provide clear skies,
light winds and VFR conditions late tonight through Wednesday.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
IL...NONE.
MO...NONE.
&&

$$

SYNOPSIS...Haase
SHORT TERM...Haase
LONG TERM...Haase
AVIATION...Sheets



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