893
FXUS63 KMKX 181128
AFDMKX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
628 AM CDT SUN OCT 18 2026
KEY MESSAGES
- SOUTHWEST GALES ARE FORECAST TODAY INTO TONIGHT OVER THE
NORTHERN HALF OF LAKE MICHIGAN AND GALE WARNINGS ARE IN
EFFECT. A SMALL CRAFT ADVISORY IS IN EFFECT NORTH OF PORT
WASHINGTON INTO TONIGHT, AND FOR THE REST OF THE SOUTHERN
WISCONSIN NEARSHORE WATERS AFTER SUNRISE THROUGH THIS
EVENING.
- DRY WITH A GRADUAL WARMING TREND THROUGH NEXT WEEKEND.
UPDATE
ISSUED 630 AM CDT SUN OCT 18 2026
QUIET CONDITIONS EXPECTED TODAY WITH A STRENGTHENED PRESSURE
GRADIENT TODAY BETWEEN THE DEPARTING HIGH PRESSURE AND A STRONG
LOW PRESSURE MOVING OVER THE HUDSON BAY. THIS WILL MAKE FOR SOME
BREEZY SOUTHWEST WINDS TODAY BUT OTHERWISE REMAINING QUIET WITH
MOSTLY CLEAR SKIES.
KUROSKI
SHORT TERM
ISSUED 1213 AM CDT SUN OCT 18 2026
TODAY THROUGH MONDAY NIGHT:
HIGH PRESSURE EXITING TO THE EAST WITH A STRONG LOW PRESSURE
SYSTEM SPINNING INTO THE HUDSON BAY WILL ALLOW FOR CONTINUED
SOUTHWESTERLY GUSTY WINDS THROUGH TODAY. HIGHS IN THE LOW 60S ARE
EXPECTED WITH PLENTY OF SUNSHINE. HIGH PRESSURE STALLS OVER THE
NORTHEAST U.S. INTO TONIGHT AS AN ADDITIONAL AREA OF HIGH PRESSURE
PROPAGATES INTO THE UPPER MIDWEST, ALLOWING FOR WINDS TO GRADUALLY
DIMINISH THIS EVENING THROUGH TONIGHT. LOWS IN THE UPPER 30S TO
LOW 40S ARE EXPECTED, WITH WINDS NOT EXPECTED TO CALM OVERNIGHT
AND THEREFORE NO FROST CONCERNS.
HIGH PRESSURE AND VERY LIGHT WINDS REMAIN DOMINANT THROUGH MONDAY
NIGHT, WITH CLEAR SKIES AND HIGHS IN THE MID TO UPPER 60S AND
MONDAY NIGHT LOWS AROUND 40 DEGREES. WITH LIGHT TO CALM WINDS,
SOME FOG FORMATION IS POSSIBLE, ESPECIALLY IN LOW-LYING AREAS.
MH
LONG TERM
ISSUED 1213 AM CDT SUN OCT 18 2026
TUESDAY THROUGH SUNDAY:
HIGH PRESSURE REMAINS IN PLACE THROUGH MUCH OF THE WORK WEEK,
GRADUALLY PROPAGATING EASTWARD. OCCASIONAL LOW PRESSURE SYSTEMS
PROPAGATING ACROSS NORTHERN PORTIONS OF THE CANADIAN PRAIRIES WILL
BRING GENERALLY LIGHT SOUTHERLY WINDS, CALMING OVERNIGHT.
TEMPERATURES WILL GRADUALLY RISE THROUGH THE WEEK WITH HIGHS FROM
THE UPPER 60S TO LOW 70S AND LOWS IN THE LOW 40S TO UPPER 40S AND
LOW 50S BY THE END OF THE WEEK. DURING THE DAY, LIGHT WINDS WILL
ALLOW FOR A WEAK LAKE BREEZE IN LAKE MICHIGAN COUNTIES.
GOING INTO THE WEEKEND, STRONG LOW PRESSURE LOOKS TO PROPAGATE
THROUGH THE CANADIAN PRAIRIES, BRINGING INCREASING SOUTHERLY WINDS
AND INCREASING CLOUD COVER SATURDAY, AND THE NEXT CHANCES FOR
PRECIPITATION SUNDAY AS A FRONTAL BOUNDARY FROM THIS SYSTEM
MOVES SOUTHWARD THROUGH WISCONSIN. STRENGTH AND TIMING OF THIS
FRONT STILL IN QUESTION, AND WITH PLENTY OF DRY AIR IN PLACE
AHEAD OF THE FRONT TO PREVENT PRECIPITATION FROM REACHING THE
GROUND.
MH
AVIATION
ISSUED 630 AM CDT SUN OCT 18 2026
QUIET CONDITIONS TO START THIS MORNING AND WHILE SOUTHWEST WINDS
WILL BECOME BREEZY TODAY, VFR CONDITIONS ARE EXPECTED THROUGHOUT
THE TAF PERIOD. POCKETS OF LLWS TONIGHT FROM THE SW AT 40KT BUT
OTHERWISE NO AVIATION CONCERNS ARE EXPECTED.
KUROSKI
MARINE
ISSUED 1213 AM CDT SUN OCT 18 2026
HIGH PRESSURE AROUND 30.6 INCHES LINGERS ACROSS THE OHIO VALLEY
THROUGH TODAY WHILE LOW PRESSURE AROUND 29.0 INCHES PROGRESSES
EASTWARD ACROSS NORTHERN MANITOBA INTO THE HUDSON BAY. THIS WILL
LEAD TO SOUTHWESTERLY GALES ACROSS THE NORTHERN HALF OF THE LAKE
AND GUSTY SOUTHWEST WINDS ACROSS THE SOUTHERN HALF. A GALE WARNING
IS IN EFFECT EARLY THIS MORNING THROUGH LATE TONIGHT FOR THE
NORTHERN HALF, WITH BUILDING WAVES ALSO EXPECTED. A SMALL CRAFT
ADVISORY IS IN EFFECT FOR SOUTHERN WISCONSIN NEARSHORE REGIONS
THROUGHOUT TODAY AND INTO TONIGHT FOR BUILDING WAVES AND GUSTY
WINDS. WINDS WILL GRADUALLY DIMINISH THROUGH EARLY MONDAY MORNING,
BECOMING LIGHT AND VARIABLE BY MONDAY AFTERNOON AS HIGH PRESSURE
AROUND 30.4 INCHES BUILDS OVER THE GREAT LAKES REGION. HIGH
PRESSURE GENERALLY REMAINS IN PLACE THROUGH THE REMAINDER OF THE
WEEK, WITH LIGHT AND VARIABLE WINDS EXPECTED. WINDS SHIFT TO
SOUTHERLY INTO FRIDAY AS LOW PRESSURE DEEPENS IN THE SOUTHERN
CANADIAN PRAIRIES.
MH
MKX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
LM...GALE WARNING...LMZ261-LMZ362-LMZ364-LMZ563 UNTIL 1 AM MONDAY.
GALE WARNING...LMZ366-LMZ565-LMZ567-LMZ868 UNTIL 10 PM SUNDAY.
SMALL CRAFT ADVISORY...LMZ644-LMZ645-LMZ646 UNTIL 7 PM SUNDAY.
SMALL CRAFT ADVISORY...LMZ643 UNTIL 10 PM SUNDAY.
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