Area Forecast Discussion
Issued by NWS La Crosse, WI

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FXUS63 KARX 262327
AFDARX

Area Forecast Discussion
National Weather Service La Crosse WI
627 PM CDT Mon Oct 26 2020

.SHORT TERM...(This evening through Tuesday)
Issued at 215 PM CDT Mon Oct 26 2020

Visible satellite showing an increase in cumulus across the area
this afternoon in daytime heating and cold air aloft. Temperatures
as of 2 pm were in the upper 20s to mid 30s.

Clouds expected to scatter out tonight as high pressure drifts
across the region. Remaining snow cover, light winds and mostly
clear skies will lead to very chilly overnight lows. Look for
reading to dip into the teens and lower 20s.

The ridge of high pressure drifts southeast of the region Tuesday as
a warm front approaches from the Northern Plains. This will produce
southwest winds which we normally expect to warm us up. However,
most of this warming will be spent melting the existing snow pack
and the winds are blowing across a slightly deeper snowpack across
IA. This will will result in highs only topping off in the the mid
and upper 30s.

.LONG TERM...(Tuesday night through Monday)
Issued at 215 PM CDT Mon Oct 26 2020

Through the extended, we have frequent frontal passages that
bring frequent wind shifts, but little in the way of
precipitation.

Ahead of a wind shift Wednesday, look for warming temperatures in
the lower 40s to the lower 50s. With the storm system tracking
across the southern Plains Thursday, it will allow colder air to
drop south across Minnesota and Wisconsin. For now, temperatures
look to top out in the 40s. The cooling is short-lived, with
return south flow. Again for Friday, highs should be below to near
normal with readings in the 40s to lower 50s. Ahead of the next
front, even warmer temperatures are expected with highs in the 50s
Saturday. The frontal passage swings through Saturday night...but
it is a quick shot. Gusty southwest winds will develop ahead of
the front with gusty northwest winds behind it. Per EPS wind
ensembles, some 30 to 40 mph are possible Saturday and Sunday. The
stronger winds do not last though, settling down later Sunday and
Sunday night. The dry weather lasts into early next week. There
are some larger differences in the amplitudes of the
ridging...thus some spread in the temperatures.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 627 PM CDT Mon Oct 26 2020

VFR conditions are expected throughout the entire TAF period.
Current cumulus cloud deck around 3500 ft is expected to scatter out
shortly this early evening as high pressure moves into the region.
Winds from the northwest will decrease this evening possibly
becoming light and variable overnight. By tomorrow morning, winds
will increase from the southwest remaining around 10 knots through
the afternoon. KRST may see some gusts up to 20 knots by late
morning.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.
&&

$$

SHORT TERM...DAS
LONG TERM...Zapotocny
AVIATION...Peters


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