762
FXUS63 KMKX 080237
AFDMKX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
937 PM CDT SUN SEP 7 2025
KEY MESSAGES
- ANOTHER COOL NIGHT EXPECTED THEN A WARMING TREND FOR THE
REMAINDER OF THE WEEK. HIGH TEMPERATURES WILL WARM ABOVE
NORMAL FOR THE 2ND HALF OF THE WEEK.
- GUSTY SOUTHERLY WINDS WILL BRING RISING WAVES TO LAKE MICHIGAN
BEACHES, WITH A BEACH HAZARDS STATEMENT IN EFFECT FOR HIGH
SWIM RISK IN SHEBOYGAN COUNTY MONDAY EVENING THROUGH TUESDAY
EVENING. MODERATE SWIM RISK IS EXPECTED AT OZAUKEE COUNTY
BEACHES FOR THE SAME TIME FRAME.
- THERE ARE 20 TO 30 PERCENT CHANCES FOR SHOWERS AND STORMS
TUESDAY NIGHT NORTH AND WEST OF THE MKE METRO AREA.
UPDATE
ISSUED 937 PM CDT SUN SEP 7 2025
TEMPERATURES FALLING TOWARD DEWPOINTS TONIGHT, WITH LOW-LYING
FOG POSSIBLE IN SOUTHWESTERN WISCONSIN IN THE WISCONSIN RIVER
VALLEY ONCE AGAIN. A FEW ADDITIONAL AREAS OF PATCHY GROUND FOG
ARE ALSO POSSIBLE FARTHER EAST, BUT THESE LAYERS ARE EXPECTED
TO BE THIN AND TRANSIENT.
WITH TRENDS TOWARD HIGHER WAVES AT SHEBOYGAN COUNTY LAKE
MICHIGAN BEACHES, A BEACH HAZARD STATEMENT HAS BEEN ISSUED FOR
THAT COUNTY FROM MONDAY EVENING THROUGH TUESDAY EVENING. HIGH
SWIM RISK IS EXPECTED, WITH LIFE THREATENING WAVES AND CURRENTS.
STAY OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE
PIERS AND BREAKWALLS. FOR OZAUKEE COUNTY BEACHES, A MODERATE
SWIM RISK IS EXPECTED FOR THE SAME TIME PERIOD. IN THESE AREAS,
STAY AWAY FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER
OUTLETS, AND ALWAYS HAVE A FLOATATION DEVICE WITH YOU IN THE
WATER.
MH
SHORT TERM
ISSUED 243 PM CDT SUN SEP 7 2025
TONIGHT THROUGH TUESDAY:
SCATTERED TO BROKEN CLOUD COVER WILL DISSIPATE TOWARD EVENING
WHILE HIGH PRESSURE OVER IL SHIFTS INTO THE NRN OHIO RIVER
VALLEY THROUGH THE NIGHT. ITS SURFACE RIDGE AXIS EXTENDING INTO
SRN WI WILL SLOWLY MOVE ACROSS WITH ANOTHER COOL NIGHT
EXPECTED. SOME VALLEY FOG OVER SOUTH CENTRAL WI IS FORECAST BUT
EVEN MORE SPARSE OVER SE WI.
THE HIGH PRESSURE AREA WILL THEN SHIFT TO THE LOWER GREAT
LAKES AND MID ATLANTIC STATES BY MON AFTERNOON WITH SLY WINDS
AND LOW TO MID LEVEL WARM ADVECTION DEVELOPING FOR SRN WI INTO
TUE. THIS WILL OCCUR AS THE JET STREAM BECOMES QUASI-ZONAL AND
A TROUGH OF LOW PRESSURE MOVES INTO THE NRN GREAT PLAINS. SOME
CLOUD COVER MAY DEVELOP WITH THE WARM ADVECTION MAINLY NORTH AND
WEST OF MADISON, BUT OVERALL, SUNSHINE AND TEMPS RETURNING INTO
THE 70S IS FORECAST.
GEHRING
LONG TERM
ISSUED 243 PM CDT SUN SEP 7 2025
TUESDAY NIGHT THROUGH SUNDAY:
A WEAK SHORTWAVE TROUGH WILL SLOWLY PASS TUE NT-WED WHILE THE
APPROACHING SFC TROUGH AND COLD FRONT WILL MOSTLY DIMINISH. THUS
ONLY A WEAK COLD FRONTAL PASSAGE IS EXPECTED LATE WED AFTERNOON
AND EVENING AND WILL LIKELY BE DRY. BEFOREHAND, 20-30% CHANCES
FOR SHOWERS AND STORMS ARE FORECAST FOR SOUTH CENTRAL AND
PORTIONS OF EAST CENTRAL WI FOR TUE NT.
A LARGE HIGH PRESSURE AREA WILL THEN MOVE FROM ONTARIO INTO SRN
QUEBEC AND NEW ENGLAND FOR THU-FRI, WHILE A NARROW BUT HIGH
AMPLITUDE UPPER RIDGE BUILDS INTO THE UPPER MS RIVER VALLEY.
LIGHT ENELY WINDS AND ABOVE NORMAL TEMPS ARE FORECAST FOR SRN
WI. THE UPPER RIDGE WILL THEN SHIFT INTO THE WRN GREAT LAKES FOR
THE WEEKEND. SLY WINDS AND WARM AND HUMID CONDITIONS WILL
RETURNS WITH AT LEAST SLIGHT CHANCES FOR SHOWERS AND STORMS.
GEHRING
AVIATION
ISSUED 937 PM CDT SUN SEP 7 2025
LIGHT AND VARIABLE TO CALM WINDS OVERNIGHT, WITH VFR CONDITIONS
CONTINUING THROUGHOUT THE OVERNIGHT HOURS IN MOST AREAS. VERY
LOCALIZED, THIN LAYERS OF FOG ARE POSSIBLE ACROSS SOUTH-CENTRAL
WISCONSIN, WITH DEEPER FOG BANKS EXPECTED IN THE WISCONSIN RIVER
VALLEY. IN GENERAL, OUTSIDE OF THE VALLEY, EXPECTING FOG LAYERS
TO BE VERY THIN AND TRANSIENT.
ANY FOG WILL BURN OFF QUICKLY AFTER SUNRISE, WITH SOUTHERLY
WINDS INCREASING THROUGHOUT THE DAY. WINDS SHIFT TO BECOME
SOUTHEASTERLY INTO THE EVENING HOURS. VFR CONDITIONS WILL
CONTINUE, WITH DIURNAL CUMULUS AROUND 6000 FT ONCE AGAIN.
MH
MARINE
ISSUED 243 PM CDT SUN SEP 7 2025
HIGH PRESSURE AROUND 30.3 INCHES WILL MOVE FROM ILLINOIS THIS
AFTERNOON INTO THE NORTHERN OHIO VALLEY THROUGH LATE TONIGHT. THE
HIGH PRESSURE AREA WILL THEN MOVE TO THE MID ATLANTIC STATES AND
NEW ENGLAND FOR MONDAY AND TUESDAY. AS THE HIGH PASSES BY, LIGHT
NORTHWEST WINDS WILL SHIFT TO WESTERLY BY LATE THIS EVENING, THEN
BECOMING BREEZY SOUTHERLY WINDS FOR MONDAY NIGHT AND TUESDAY. MUCH
LIGHTER WINDS ARE THEN EXPECTED TUESDAY NIGHT AND WEDNESDAY FOLLOWED
BY A WEAK COLD FRONTAL PASSAGE FROM THE NORTH FOR WEDNESDAY NIGHT.
LIGHT NORTHEAST WINDS WILL PREVAIL AFTER THE FRONTAL PASSAGE
THROUGH THURSDAY BECOMING EAST TO SOUTHEAST FOR FRIDAY. A SMALL
CRAFT ADVISORY MAY BE NEEDED NORTH OF PORT WASHINGTON FOR MONDAY
NIGHT AND TUESDAY MORNING.
GEHRING
MKX WATCHES/WARNINGS/ADVISORIES
WI...BEACH HAZARDS STATEMENT...WIZ052...7 PM MONDAY TO 7 PM TUESDAY.
LM...SMALL CRAFT ADVISORY...LMZ643...7 PM MONDAY TO 7 PM TUESDAY.
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