586
FXUS63 KMKX 041730
AFDMKX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1230 PM CDT SUN OCT 4 2026
KEY MESSAGES
- PATCHY FROST TONIGHT IN VALLEYS AND LOW LYING LOCATIONS.
- NO HAZARDS EXPECTED THIS WEEK WITH NEAR AVERAGE EARLY AUTUMN
TEMPERATURES.
SHORT TERM
ISSUED 1230 PM CDT SUN OCT 4 2026
TONIGHT THROUGH MONDAY NIGHT:
HIGH PRESSURE WILL DOMINATE OUR WEATHER REGIME. CLEAR SKIES AND
LIGHT WINDS BOTH TONIGHT WILL SET THE STAGE FOR LOCALIZED
COOLER SPOTS IN VALLEYS, LOW LYING AREAS AND OTHER SHELTERED
LOCATIONS. THIS WILL LEAVE THE DOOR OPEN TO TEMPERATURES DIPPING
INTO THE MID/UPPER 30S AND PATCHY FROST. FOR MONDAY NIGHT, THE
HIGH HOLDS ON LONG ENOUGH FOR AN INITIAL QUICK TEMPERATURE DROP
IN THE EVENING, BUT SOUTHERLY WINDS ON THE BACKSIDE OF THE HIGH
DEVELOP DURING THE MID/LATE EVENING AND WILL HELP KEEP
TEMPERATURES IN CHECK AND MITIGATE FROST DEVELOPMENT.
GAGAN
LONG TERM
ISSUED 1230 PM CDT SUN OCT 4 2026
TUESDAY THROUGH SUNDAY:
THE SUITE OF ENSEMBLES CONTINUES TO INDICATE A QUIET WEATHER
PATTERN ACROSS THE REGION. OVERALL, NORTHWEST FLOW WILL BE THE
RULE THIS WEEK, WITH COOL MORNINGS AND SEASONABLY WARM
AFTERNOONS. RIDGING BUILDS ALOFT FRIDAY INTO NEXT WEEKEND, AND
TEMPERATURES WILL TREND ABOVE AVERAGE. AT THIS POINT, IT LOOKS
LIKE THE NEXT APPRECIABLE CHANCE FOR RAINFALL WILL BE JUST
BEYOND THE FORECAST PERIOD.
GAGAN
AVIATION
ISSUED 1230 PM CDT SUN OCT 4 2026
VFR CONDITIONS WILL BE THE RULE OVER THE NEXT 36 HOURS WITH
SURFACE HIGH PRESSURE IN FIRM CONTROL OF OUR WEATHER PATTERN.
NORTHWEST WINDS WILL BY GUSTY THROUGH MID AFTERNOON, GRADUALLY
LESSENING AS THE SURFACE HIGH ENTERS FROM THE WEST.
LIGHT/VARIABLE WINDS ARE EXPECTED TONIGHT THROUGH MONDAY
MORNING. ASIDE FROM A FEW LOWER LEVEL STRATOCUMULUS CLOUDS,
MAINLY CLEAR SKIES ARE EXPECTED.
GAGAN
MARINE
ISSUED 1230 PM CDT SUN OCT 4 2026
LOW PRESSURE WILL MOVING EAST ACROSS SOUTHERN CANADA TODAY WILL
DEEPEN TO 29.4 INCHES AND APPROACH JAMES BAY BY LATE THIS
AFTERNOON. A COLD FRONT HAS EXITED TO THE EAST OF LAKE MICHIGAN
AND NORTHWEST WINDS WILL REMAIN BREEZY TODAY. NORTHWEST WINDS
WILL GRADUALLY DECREASE TONIGHT INTO MONDAY AS HIGH PRESSURE OF
30.2 INCHES ENTERS FROM THE WEST. A FEW WATERSPOUTS REMAIN
POSSIBLE ACROSS THE FAR NORTHERN EDGE OF THE LAKE THIS EVENING
INTO TONIGHT.
LOW PRESSURE OF 29.4 INCHES WILL BUILD TOWARD THE HUDSON BAY
TUESDAY THROUGH THURSDAY. AHEAD OF THIS LOW, SOUTH SOUTHWEST
WINDS WILL INCREASE TUESDAY AFTERNOON THROUGH WEDNESDAY AND
BECOME GUSTY. THERE REMAINS A RISK FOR GUSTS TO APPROACH GALES,
PARTICULARLY OVER THE NORTHERN HALF OF THE OPEN WATERS, AND WILL
CONTINUE TO BE MONITORED FOR POSSIBLE HEADLINES. THE LOW WILL
PULL A COLD FRONT ACROSS THE WATERS WEDNESDAY NIGHT INTO
THURSDAY, DELIVERING SCATTERED SHOWERS AND SHIFTING WINDS TO
THE WEST NORTHWEST.
GAGAN
MKX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
LM...NONE.
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