864
FXUS63 KARX 172353
AFDARX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
653 PM CDT SAT OCT 17 2026
KEY MESSAGES
- GUSTY THIS AFTERNOON AND SUNDAY AFTERNOON. WIND GUSTS WILL
RANGE FROM 25 TO 35 MPH OUT OF THE SOUTHWEST THIS AFTERNOON
AND SOUTH ON SUNDAY AFTERNOON.
- DRY AND UNSEASONABLY WARM NEXT WEEK.
DISCUSSION
ISSUED AT 1157 AM CDT SAT OCT 17 2026
TONIGHT
WITH THE LOSS OF DIURNAL MIXING TONIGHT, THE WIND GUSTS WILL
GRADUALLY DECLINE THIS EVENING AND OVERNIGHT. EVEN WITH THAT THE
SUSTAINED WINDS WILL REMAIN IN THE 10 TO 20 MPH RANGE. THE
COMBINATION OF WARM AIR ADVECTION AND THE LOW-LEVELS REMAINING
WELL-MIXED, LOW TEMPERATURES WILL BE WARMER TONIGHT. THEY WILL
RANGE FROM THE LOWER 30S TO LOWER 40S.
SUNDAY
AS THE DAY WARMS ON SUNDAY MORNING, SOUTHERLY WIND GUSTS WILL
INCREASE INTO THE 25 TO 35 MPH RANGE. IN ADDITION, THIS WILL MIX
DOWN WARMER AIR FROM ALOFT TO THE SURFACE. WITH THE NBM RUNNING
ON THE COOL SIDE, USED A MIX OF 1/3RD NBM AND 2/3RDS NBM 90TH
PERCENTILE TO RAISE THESE TEMPERATURES UP ANYWHERE FROM 2 TO 4F.
HIGH TEMPERATURES ON SUNDAY WILL BE IN THE LOWER AND MID-60S.
NEXT WEEK
A 500 MB RIDGE WILL GRADUALLY BUILD NORTH INTO THE REGION EARLY
NEXT WEEK AND THEN REMAIN IN CONTROL OF THE AREA THROUGH THE
WEEK. HIGH TEMPERATURES WILL BE MAINLY IN THE 60S THROUGH
WEDNESDAY AND THEN RANGE FROM THE UPPER 60S TO MID-70S FOR THE
REMAINDER OF THE WEEK. LOW TEMPERATURES WILL BE IN THE 30S AND
40S THROUGH MONDAY NIGHT, 40S TUESDAY NIGHT, AND IN THE 40S AND
50S FOR THE REMAINDER OF THE WEEK.
AVIATION /00Z TAFS THROUGH 00Z MONDAY/
ISSUED AT 645 PM CDT SAT OCT 17 2026
MAIN AVIATION IMPACT WILL BE INCREASED SURFACE WIND THROUGH THE
18.00Z TAF PERIOD PRIMARILY WEST OF THE MISSISSIPPI RIVER VALLEY
AFFECTING KRST TAF SITE. WHILE GUSTS AT TAF ISSUANCE HAVE
ABATED, SUSCEPTIBILITY AND HIGH RESOLUTION FORECASTS SUGGESTS
SURFACE GUSTS CONTINUING OVERNIGHT AT KRST BEFORE INCREASING
AREA WIDE THROUGH SUNDAY MORNING.
ARX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
MN...NONE.
IA...NONE.
DISCUSSION...BOYNE
AVIATION...JAR
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