131
FXUS63 KDLH 050041
AFDDLH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
741 PM CDT TUE AUG 4 2026
KEY MESSAGES
- COOLER AND DRIER CONDITIONS CONTINUE THROUGH AT LEAST
THURSDAY MIDDAY.
- NEXT CHANCE FOR PRECIPITATION THURSDAY-FRIDAY.
- A FEW STORMS MAY BE STRONG THURSDAY NIGHT AND FRIDAY.
DISCUSSION
ISSUED AT 139 PM CDT TUE AUG 4 2026
NORTHWESTERLY FLOW IS BRINGING A CLASSIC AUGUST FALL TEASER TODAY,
WITH BREEZY WINDS, A BROKEN ALTOCUMULUS CLOUD DECK, AND DEWPOINTS IN
THE 50S. EVEN LOWER DEWPOINTS IN THE 40S ARE EXPECTED OVERNIGHT INTO
WEDNESDAY MORNING, WHICH WILL LIKELY MAKE FOR A RELATIVELY CHILLY
NIGHT TONIGHT. EXPECT OVERNIGHT LOWS IN THE 40S FOR MOST, EXCEPT
RIGHT ALONG LAKE SUPERIOR.
RINSE AND REPEAT TOMORROW WITH A WESTERLY BREEZE IN THE AFTERNOON,
LOWER DEWPOINTS, AND HIGH TEMPERATURES IN THE 70S.
A LITTLE WIGGLE IN THE UPPER LEVEL FLOW THURSDAY SHOULD ALLOW FOR
SOME MOISTURE AND WARMTH ADVECTION BACK INTO THE AREA, WITH
DEWPOINTS IN THE MID TO UPPER 50S AND TEMPERATURES RISING INTO THE
80S. THAT IMPULSE COULD ALSO LEAD TO SOME SCATTERED SHOWERS AND
THUNDERSTORMS LATE THURSDAY THROUGH FRIDAY.
WE EXPECT TO STAY UNDER BROAD UPPER LEVEL TROUGHING INTO NEXT WEEK
WHICH WILL KEEP US ON THE SLIGHTLY COOLER SIDE. ANY UPPER LEVEL
SHORTWAVES THAT MOVE THROUGH COULD BRING SOME PASSING PRECIPITATION
CHANCES.
AVIATION /00Z TAFS THROUGH 00Z THURSDAY/
ISSUED AT 741 PM CDT TUE AUG 4 2026
VFR CONDITIONS THIS EVENING WITH DECREASING WIND SPEEDS. FOG IS
FORECAST AT HYR EARLY WEDNESDAY MORNING. INTRODUCED IFR
VISIBILITY WITH THIS UPDATE. ALSO ADDED MVFR VISIBILITY TEMPOS
TO HIB AND BRD. WITH THE DRIER AIR MOVING INTO THE REGION
EARLIER TODAY AND THIS EVENING, DEWPOINTS MAY BE TOO LOW FOR
FOG. THE MAIN FACTOR WILL BE WHETHER WINDS BECOME LIGHT OR CALM.
VERY LITTLE AIR MOVEMENT IS NEEDED TO PREVENT FOG DEVELOPMENT.
VFR CONDITIONS ARE EXPECTED WITH SOUTHWEST WINDS.
MARINE /FOR NEARSHORE WATERS OF WESTERN LAKE SUPERIOR/
ISSUED AT 139 PM CDT TUE AUG 4 2026
SOUTHWESTERLY WINDS ARE EXPECTED TODAY AND WEDNESDAY, WITH SOME
AFTERNOON GUSTS UP TO 15 KNOTS POSSIBLE. SLIGHTLY STRONGER SOUTHWEST
WINDS ARE POSSIBLE THURSDAY WITH SOME GUSTS OF 20-25 KNOTS POSSIBLE -
A SMALL CRAFT ADVISORY MAY BE NEEDED. NO PRECIPITATION IS EXPECTED
UNTIL THE END OF THE WEEK.
FOR THE OPEN WATER DISCUSSION, REFER TO THE NWS MARQUETTE AREA
FORECAST DISCUSSION AT WEATHER.GOV/MQT.
FIRE WEATHER
ISSUED AT 139 PM CDT TUE AUG 4 2026
DRIER WEATHER CONTINUES FOR TODAY AND TOMORROW. WEDNESDAY, DEWPOINTS
IN THE 40S WILL MAKE FOR A NOTICEABLY DRY DAY WITH AFTERNOON RH
FALLING TO AROUND 30%. EXPECT BREEZY AFTERNOON CONDITIONS WITH WEST
WINDS GUSTING 15-20MPH. A LITTLE MORE MOISTURE RETURNS THU-FRI BUT
AFTERNOON RH MAY STILL FALL INTO THE 35-40% RANGE. STRONG SOUTHWEST
WINDS ARE POSSIBLE THURSDAY, SUSTAINED 10-15MPH WITH GUSTS UP TO
25MPH. THERE COULD BE SOME SCATTERED RAIN SHOWERS AND THUNDERSTORMS
LATE THURSDAY INTO FRIDAY, POSSIBLY CONTINUING THROUGH THE
WEEKEND.
SEE THE FIRE WEATHER FORECAST PRODUCT FOR A MORE THOROUGH
BREAKDOWN OF FIRE WEATHER CONDITIONS.
DLH WATCHES/WARNINGS/ADVISORIES
MN...NONE.
WI...NONE.
MARINE...NONE.
DISCUSSION...LEVENS
AVIATION...HUYCK
MARINE...LEVENS
FIRE WEATHER...LEVENS
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