995
FXUS63 KARX 200542
AFDARX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
1242 AM CDT TUE OCT 20 2026
KEY MESSAGES
- UNSEASONABLY WARM INTO THE WEEKEND.
- DRY THROUGH THURSDAY NIGHT AND THEN MAYBE SOME SMALL RAIN
CHANCES FROM FRIDAY INTO THE WEEKEND.
- MUCH UNCERTAINTY ON TEMPERATURES AND RAIN CHANCES EARLY NEXT
WEEK.
DISCUSSION
ISSUED AT 1146 PM CDT MON OCT 19 2026
TODAY THROUGH THURSDAY NIGHT
AN ANOMALOUS 500 MB RIDGE WILL REMAIN IN CONTROL OF THE AREA'S
WEATHER THROUGH THURSDAY NIGHT. THIS HIGH WILL PROVIDE DRY
WEATHER AND UNSEASONABLY WARM TEMPERATURES. HIGH TEMPERATURES
WILL WARM FROM THE MID- AND UPPER 60S TODAY AND BE IN THE LOWER
AND MID-70S ON THURSDAY. LOW TEMPERATURES WILL BE IN THE 30S AND
40S TONIGHT AND WEDNESDAY NIGHT AND IN THE 40S AND 50S ON
THURSDAY NIGHT.
FRIDAY AND FRIDAY NIGHT
A NEGATIVELY TILTED TROUGH WILL MOVE THROUGH MINNESOTA AND
WESTERN AND NORTHERN WISCONSIN. THERE IS STILL PLENTY OF
UNCERTAINTY ON WHETHER THERE WILL BE ENOUGH LOW-LEVEL MOISTURE
FOR ANY RAIN TO MOVE INTO OUR AREA.
WITH SOME MORE COVER, HIGH TEMPERATURES WILL BE A BIT COOLER
(MAINLY IN THE 60S). LOW TEMPERATURES WILL BE A BIT WARMER (UPPER
40S TO MID-50S).
WEEKEND
ANOTHER NEGATIVELY TILTED TROUGH WILL MOVE THROUGH THE REGION.
THIS ONE WILL BE FURTHER SOUTHEAST AND IT WILL DRAG A COLD FRONT
SOUTHEAST THROUGH THE AREA. THIS WILL PROVIDE A SLIGHT CHANCE
(UP TO 24 PERCENT) OF RAIN.
HIGH TEMPERATURES WILL BE MAINLY IN THE 60S. LOW TEMPERATURES
WILL RANGE FROM THE UPPER 40S TO MID-50S.
EARLY NEXT WEEK
THERE IS PLENTY OF SPREAD IN THE MODELS EARLY NEXT WEEK. SOME
SHOW THAT THE UPPER LEVEL RIDGE WILL BUILD BACK NORTH ACROSS THE
AREA. OTHER MODELS SHOW THAT THE RIDGE WILL EITHER FLATTEN OR
RETROGRADE WEST AS A BROAD UPPER LEVEL TROUGH MOVES THROUGH THE
REGION. DUE TO THIS, THERE IS MUCH UNCERTAINTY ON TEMPERATURES
AND RAIN CHANCES.
AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/
ISSUED AT 1239 AM CDT TUE OCT 20 2026
PATCHY FOG IS DEVELOPING ACROSS THE REGION AT ISSUANCE TIME WITH
THIS EXPECTED TO FOCUS WITHIN RIVER VALLEYS INTO EARLY TUESDAY
MORNING, PRIMARILY IMPACTING ONA/LSE/PDC/OVS. HAVE CONTINUED TO
CARRY AN IFR TEMPO GROUP AT LSE TO COVER THIS POTENTIAL.
OTHERWISE, SKIES WILL BE MOSTLY TO COMPLETELY CLEAR WITH WINDS
OUT OF THE SOUTHEAST OVER THE NEXT 24 HOURS.
ARX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
MN...NONE.
IA...NONE.
DISCUSSION...BOYNE
AVIATION...FERGUSON
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