Area Forecast Discussion
Issued by NWS La Crosse, WI

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FXUS63 KARX 121714

Area Forecast Discussion
National Weather Service La Crosse WI
1114 AM CST Mon Feb 12 2018

.SHORT TERM...(Today through Tuesday Night)
Issued at 150 AM CST Mon Feb 12 2018

High pressure building into the area early this morning. Clear skies
and light winds allowing temperatures to slide into the single
digits as of 1 am.

Main concern will be impact of weakening mid-level trough ejecting
out of the Rockies into the Upper Mississippi River Valley region
tonight into Tuesday. Main impact will be an increase/thickening in
high and mid level cloudiness by later this afternoon through
Tuesday morning. Otherwise, plan on another cold day today with high
pressure overhead. Look for highs only in the teens to lower 20s.
Weak warm air advection with the wave expected to produce highs in
the middle 20s to lower 30s on Tuesday, which is near normal.
Increasing south/southwest flow Tuesday night in warm sector of
Canadian low will produce overnight lows in the teens to lower 20s.

.LONG TERM...(Wednesday through Sunday)
Issued at 150 AM CST Mon Feb 12 2018

Warmup on tap for Wednesday as the area will be in warm sector of
low pressure moving into Ontario Canada. Southwest surface flow,
mostly sunny skies, and 925mb temperatures warming into the +1 to
+6C range are expected to push highs into the upper 30s to middle

A cold front pushes south into the area Thursday as weak area of low
pressure moves into IA/IL for increasing clouds and a chance of rain
and snow. Look for highs Thursday in the 30s and lows Thursday night
dropping into the single digits/lower teens.

Friday through Sunday looking dry for now but may have to watch
Saturday as a mid-level trough drops southeast out of Canada into
the Great Lakes region. Right now, it appears pops will remain north
of the area. Otherwise, plan on highs Saturday in the upper 20s to
middle 30s and middle 30s to lower 40s for Sunday.


.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1114 AM CST Mon Feb 12 2018

VFR conditions expected through the TAF period. Northwesterly
winds this afternoon will become light and variable this evening,
before becoming southerly during the overnight hours. RST could
then see some gusts near 20 kts on Tuesday. Otherwise, scattered
high clouds will be seen this afternoon, with a broken deck around
10 kft agl moving in overnight.




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