709
FXUS63 KMKX 071137
AFDMKX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
637 AM CDT FRI AUG 7 2026
KEY MESSAGES
- AREAS OF FOG ALONG AND NORTHWEST OF US HWY 151 WILL SLOWLY MIX
OUT THROUGH THE REST OF THIS MORNING.
- A DECAYING AREA OF THUNDERSTORMS MAY MAKE IT INTO SOUTHERN
WISCONSIN FRIDAY NIGHT.
- ADDITIONAL ROUNDS OF STORMS MAY ROLL THROUGH SOUTHERN WI LATE
SATURDAY NIGHT AND/OR SUNDAY NIGHT INTO MID-WEEK.
UPDATE
ISSUED 633 AM CDT FRI AUG 7 2026
FOG AND LOW STRATUS HAVE FILLED IN OVERNIGHT, MAINLY ALONG AND
NORTH OF US HIGHWAY 151. THIS FOG WILL LIKELY LINGER THROUGH THE
NEXT FEW HOURS AN GRADUALLY MIX AND LIFT AS THE SUN FACILITATES
DAYTIME MIXING. EXPECT MOSTLY SUNNY TO PARTLY SUNNY SKIES THIS
AFTERNOON.
A DYING COMPLEX OF STORMS IS STILL PROGGED TO MOVE INTO FAR
SOUTHWESTERN WI EARLY THIS EVENING, MOST CAMS, SAVE FOR THE
HRRR, HAVE THIS COMPLEX LARGELY DYING BEFORE MAKING IT INTO
SOUTH CENTRAL AND SOUTHEAST WI. BEST CHANCES FOR SEEING
SCATTERED RAIN AND RUMBLES OF THUNDER REMAIN FROM MADISON,
WESTWARD THIS EVENING, IF ANY PRECIPITATION MANAGES TO HOLD
TOGETHER AS IT RUNS INTO LINGERING SUBSIDENCE OVER THE REGION.
CMILLER
SHORT TERM
ISSUED 1213 AM CDT FRI AUG 7 2026
TONIGHT THROUGH SATURDAY:
AN AREA OF CLOUDS CONTINUES TO LIFT IN FROM THE SOUTH, MOST
LIKELY RESULTING FROM WEAK TEMPERATURE AND MOISTURE ADVECTION.
NOT OUT OF THE QUESTION TO SEE AN ISOLATED SHOWER OR TWO THROUGH
THE OVERNIGHT HOURS. STILL LOOKS LIKE FOG IS POSSIBLE LATER
TONIGHT INTO EARLY FRIDAY, MAINLY IN MOSTLY CLEAR AREAS NORTH
AND WEST OF MADISON. QUIET WEATHER IS THEN EXPECTED THROUGH THE
DAY FRIDAY, WITH WARM AND HUMID CONDITIONS UNDER SOUTHERLY
WINDS.
SHOWERS AND STORMS WILL BE POSSIBLE LATER FRIDAY INTO FRIDAY
NIGHT AS LOW PRESSURE PASSING BY TO THE NORTH DRAGS A COLD FRONT
THROUGH THE REGION. MODELS CONTINUE TO SUGGEST THAT THE STORMS
WILL BE WEAKENING AS THEY APPROACH AND/OR ENTER THE WESTERN
FORECAST AREA BY MID EVENING. KEPT SOME PRECIP CHANCES GOING
INTO THE OVERNIGHT HOURS AS THE WEAK FRONT MOVES THROUGH, WITH
DEEPER MOISTURE AND SOME INSTABILITY LINGERING.
DRY WEATHER IS LIKELY SATURDAY AS DRIER CONDITIONS MOVE IN
BEHIND THE FRONT, WITH PRECIPITABLE WATER VALUES LIKELY TO DROP
BELOW AN INCH. NEAR NORMAL HIGH TEMPS ARE EXPECTED FOR THE
AFTERNOON HOURS.
DDV
LONG TERM
ISSUED 1213 AM CDT FRI AUG 7 2026
SATURDAY NIGHT THROUGH THURSDAY:
ADDITIONAL ROUNDS OF STORMS WILL BE POSSIBLE LATER SATURDAY
NIGHT INTO THE MIDDLE OF NEXT WEEK AS MOISTURE LINGERS AND A
COUPLE MORE SHORTWAVES MOVE THROUGH. TIMING OF INDIVIDUAL
ROUNDS OF STORMS IS STILL A BIT UNCERTAIN, BUT THIS DOES LOOK
LIKE A POTENTIALLY ACTIVE STRETCH GIVEN THE OPEN DOOR TO
SHORTWAVES AND THE PERSISTENT DEEPER MOISTURE AND INSTABILITY.
TEMPERATURES WILL LIKELY REMAIN WITHIN A COUPLE DEGREES OF
NORMAL THROUGH THIS PERIOD.
DDV
AVIATION
ISSUED 637 AM CDT FRI AUG 7 2026
MORNING FOG, DENSE IN WIDELY SCATTERED SPOTS WILL MIX OUT
THROUGH THE REMAINDER OF THE MORNING. THEN, EXPECT VFR
CONDITIONS THROUGH THE REST OF THE LATE MORNING AND AFTERNOON.
EARLY THIS EVENING, SOME DYING SHOWERS AND STORMS MAY GRAZE
KMSN, BUT CHANCES REMAIN AROUND 30%. WINDS WILL BE MODERATE AND
SOUTHWESTERLY THIS AFTERNOON.
CMILLER
MARINE
ISSUED 1213 AM CDT FRI AUG 7 2026
LIGHT SOUTHERLY WINDS TONIGHT WILL INCREASE BY FRIDAY AFTERNOON
AS A LOW PRESSURE TROUGH OF 29.8 INCHES REACHES LAKE SUPERIOR.
SCATTERED SHOWERS AND STORMS ARE POSSIBLE FRIDAY NIGHT AS AN
ASSOCIATED COLD FRONT CROSSES LAKE MICHIGAN. WEST TO NORTHWEST
WINDS BEHIND THE FRONT EARLY SATURDAY WILL QUICKLY RETURN TO
SOUTHERLY BY SATURDAY EVENING AHEAD OF THE NEXT APPROACHING LOW
PRESSURE SYSTEM. AN UNSETTLED WEATHER PATTERN WILL SET UP OVER
THE UPPER GREAT LAKES NEXT WEEK WHERE WEAK WAVES OF LOW PRESSURE
WILL CROSS THE REGION AND PRODUCE ROUNDS OF THUNDERSTORMS AT
TIMES.
DDV
MKX WATCHES/WARNINGS/ADVISORIES
WI...NONE.
LM...NONE.
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