070
FXUS63 KDLH 051718
AFDDLH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
ISSUED BY NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1218 PM CDT WED AUG 5 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 /18Z TAFS THROUGH 18Z THURSDAY/
ISSUED AT 1216 PM CDT WED AUG 5 2026
SATELLITE IS SHOWING SOME HEALTHY CUMULUS CLOUD PRODUCTION INTO
THE EARLY AFTERNOON WHICH WOULD FAVOR KEEPING SOME FEW/SCT050
LEVEL CLOUDS THROUGH THE MIXING PERIOD, ENDING AROUND 00Z. WINDS
WILL BREEZE TO 15-18KT GUSTS THROUGH THAT TIME, BECOMING LIGHTER
AND VARIABLE OVERNIGHT. WINDS RETURN AND BECOME STRONGER BY
AROUND 15Z, WITH GUSTS TO 20KTS AS THE DIRECTION SHIFTS TOWARDS
180-200. LAMP GUIDANCE SUGGESTS FEW250 TO SCT250 BY THE END OF
THE PERIOD, WITH FORECAST SOUNDINGS SHOWING JUST ENOUGH
SATURATION AND OMEGA TO JUSTIFY THROWING SOME UPPER LEVEL CLOUDS
IN. NO PRECIPITATION IS EXPECTED, WITH VFR FOR ALL LOCATIONS.
MARINE /FOR NEARSHORE WATERS OF WESTERN LAKE SUPERIOR/
ISSUED AT 111 AM CDT WED AUG 5 2026
SOUTHWESTERLY FLOW WILL CONTINUE OVER THE NEXT COUPLE DAYS.
WINDS UP TO 15 KTS ARE EXPECTED TODAY. THERE IS A BETTER CHANCE
TOMORROW FOR WIND GUSTS UP TO 25 KTS IN THE NEAR SHORE WATERS
WHICH WILL POSE A THREAT TO SMALL CRAFT. A SMALL CRAFT ADVISORY
WILL LIKELY BE NEEDED THURSDAY AFTERNOON INTO THE EARLY EVENING.
FOR THE OPEN WATER DISCUSSION, REFER TO THE NWS MARQUETTE AREA
FORECAST DISCUSSION AT WEATHER.GOV/MQT.
FIRE WEATHER
ISSUED AT 111 AM CDT WED AUG 5 2026
MINIMUM RH HAS LOWERED FOR TODAY, WITH VALUES RANGING 29 TO 35
PERCENT THIS AFTERNOON. WINDS, HOWEVER, SHOULD REMAIN AROUND 15
MPH OR LESS OUT OF THE WEST TO SOUTHWEST, SO CRITICAL FIRE
WEATHER CONDITIONS ARE EXPECTED TODAY. TOMORROW WILL HAVE
SLIGHTLY HIGHER MINIMUM RH VALUES, BUT HIGHER WINDS AS WELL OUT
OF THE SOUTHWEST UP TO 20 MPH. RHS INCREASE EVEN FURTHER LATER
THIS WEEK WITH RISING DEWPOINTS AND THE RETURN OF CHANCES FOR
PRECIPITATION RETURN.
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...WFO DLH
MARINE...KML
FIRE WEATHER...KML
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