Area Forecast Discussion
Issued by NWS Quad Cities, IA IL

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000
FXUS63 KDVN 231726
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
1126 AM CST Thu Nov 23 2017

...AVIATION UPDATE...

.SYNOPSIS...
Issued at 300 AM CST Thu Nov 23 2017

An area of light mixed precipitation, including some brief sleet,
moved over parts of eastern Iowa into northern Illinois during the
overnight hours. A mostly cloudy sky and south breeze held
temperatures up mainly in the low 30s.

&&

.SHORT TERM...(Today and Tonight)
ISSUED AT 300 AM CST Thu Nov 23 2017

Brief mixed precipitation will end shortly over the northwest
Illinois counties. There are no travel impacts with very little
precipitation reaching the ground from the mid-level cloud deck.

Otherwise, expect a surface trough passage with modest WAA and
afternoon highs in the 40s to around 50 degrees far southwest.
Southerly winds will increase tonight ahead of the next frontal
boundary, with lows from 30 to 35 degrees.

.LONG TERM...(Friday through Wednesday)
ISSUED AT 300 AM CST Thu Nov 23 2017

Few changes to the long term forecast as the end of November into
the beginning of December will be quiet across the area.  Overall
quiet weather pattern is forecast.  Mid next week a wave is forecast
to advect into the area.  There are discrepancies between different
models so confidence in precipitation is low.  The main forecast
concern will be potential record high temperatures on Friday.
Current guidance has temperatures just below record highs in the
upper 50s to mid 60s.  There is real potential that we could break
these records, especially if we mix deep enough.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday Afternoon)
ISSUED AT 1121 AM CST Thu Nov 23 2017

VFR conditions will be seen through 18z/24 as a weak front and
high pressure move quickly through the Midwest. The 12z/23 model
runs have started to suggest the potential for LLWS developing
09z-15z/24 across eastern Iowa. Given that this trend is new,
LLWS was not included in the 18z/23 TAFs. If this trend continues
to be suggested, LLWS may be needed in later TAFs.

&&

.CLIMATE...
ISSUED AT 300 AM CST Thu Nov 23 2017

Record Highs for November 24...

Moline.........66 in 1966
Cedar Rapids...63 in 1931
Dubuque........63 in 1931
Burlington.....68 in 1915

&&

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

$$

SYNOPSIS...RP Kinney
SHORT TERM...RP Kinney
LONG TERM...Gibbs
AVIATION...08
CLIMATE...Gibbs



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