Area Forecast Discussion
Issued by NWS La Crosse, WI

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FXUS63 KARX 251603
AFDARX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
1100 AM CDT SAT OCT 25 2014

.SHORT TERM...(TODAY AND TONIGHT)
ISSUED AT 217 AM CDT SAT OCT 25 2014

DISSIPATION OF FOG AND CLOUD TRENDS THE PRIMARY FOCUS TODAY.
BEYOND THIS ATTENTION TURNS TO TEMPERATURES.

07Z NEPHANALYSIS SHOWS WEAK TROUGH MOVING THROUGH THE REGION.
AHEAD OF IT...LOW CLOUDS AND FOG CONTINUE...WHILE TO THE WEST OF
IT BETTER MIXING WITH NORTHWEST WINDS AND DRIER AIR ARE RAPIDLY
CLEARING SKIES. ONLY CAVEAT TO THIS IS BAND OF MID CLOUD REACHING
FROM MT/ND DOWN INTO SD/MN. THIS WILL MOVE INTO THE AREA THIS
MORNING.

COLD ADVECTION WILL OFFSET AMPLE SUNSHINE TODAY...WITH HIGHS
TOPPING OUT FROM THE UPPER 50S TO MIDDLE 60S.

.LONG TERM...(SUNDAY THROUGH FRIDAY)
ISSUED AT 217 AM CDT SAT OCT 25 2014

LONG WAVE RIDGING ACROSS THE REGION FOR THE WEEKEND...SHIFTS EAST
AS A SIGNIFICANT TROUGH THAT IS CURRENTLY ALONG THE CONUS WEST
COAST MOVES ACROSS THE ROCKIES AND INTO THE UPPER MIDWEST TO START
THE WEEK. INITIAL SURGE OF WARM ADVECTION AND ISENTROPIC LIFT
SHOULD HELP FUEL SHOWERS AND A FEW THUNDERSTORMS FROM CENTRAL MN
INTO WI SUNDAY NIGHT. BEST CHANCES LOOK TO LIE ALONG AND NORTH OF
THE I-94 CORRIDOR. A BRIEF DRY PERIOD LOOKS LIKELY MONDAY MORNING
AS THE MAIN WARM ADVECTION WING MOVES NORTH. BUT THE COLD FRONT
WILL SWEEP IN LATER MONDAY AND MONDAY NIGHT. TEMPERATURES LOOK TO
BE QUITE MILD IN THE WARM SECTOR...WITH HIGHS REACHING THE LOWER
70S ACROSS IA AND SOUTHERN WI.

TROUGH SHIFTS EAST TUESDAY WITH THE ASSOCIATED SURFACE COLD FRONT
ALSO MOVING THROUGH. TEMPERATURES WILL FALL BACK TO NEAR OR EVEN
SLIGHTLY BELOW NORMAL TO COMPLETE THE WEEK. IN FACT...ANOTHER
REINFORCING SURGE OF COLD AIR LOOKS TO INVADE BY FRIDAY...WITH
HIGHS ONLY IN THE 40S.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z SUNDAY AFTERNOON)
ISSUED AT 1100 AM CDT SAT OCT 25 2014

HIGH PRESSURE BUILDING IN FROM THE PLAINS TONIGHT WILL KEEP SKIES
SKC/SCT THROUGH THE BETTER PART OF SUNDAY. GENERALLY LIGHT SFC WINDS
TONIGHT BUT NOT ANTICIPATING WIDESPREAD FOG OR VALLEY FOG. DRIER AIR
CONTINUES TO FUNNEL INTO THE REGION WHILE WINDS JUST OFF THE SFC...
PER BUFKIT SOUNDINGS...WILL KEEP THE ATMOSPHERE STIRRED.

WARM AIR ADVECTION AHEAD OF AN APPROACHING SHORTWAVE TROUGH SUNDAY
NIGHT SHOULD USHER IN SOME INITIAL MID LEVEL CLOUDINESS...AND
SCATTERED SHOWERS. MODEL TRENDS FAVORING THE BETTER RAIN CHANCES
ALONG AND EAST OF THE MISSISSIPPI RIVER. EXPECT A LOWERING IN
THE CIG HEIGHTS...AND A DIP INTO MVFR CIGS SUNDAY NIGHT IS LIKELY.

&&

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

$$

SHORT TERM...MW
LONG TERM...MW
AVIATION....RIECK



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