176
FXUS63 KDLH 210810
AFDDLH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
310 AM CDT SUN JUN 21 2026
KEY MESSAGES
- TEMPERATURES WILL REMAIN SLIGHTLY BELOW NORMAL THROUGH THE
MIDDLE OF NEXT WEEK WITH HIGHS MOSTLY IN THE 60S AND 70S.
- POTENTIAL FOR WIDESPREAD RAINFALL AND A FEW EMBEDDED
THUNDERSTORMS RETURN TUESDAY AND TUESDAY NIGHT.
UPDATE
ISSUED AT 309 AM CDT SUN JUN 21 2026
HIGH PRESSURE IS NOSING SOUTHWARD FROM CENTRAL CANADA INTO THE
NORTHERN PLAINS THIS MORNING, AS AN UPPER LOW ROTATES
SOUTHEASTWARD OVER SOUTHERN ONTARIO. THE LOW IS CLOSE ENOUGH FOR
A FEW SHOWERS TO PERSIST OVER THE ARROWHEAD. REMNANTS OF SHOWERS
THAT DEVELOPED SATURDAY EVENING CONTINUE TO MOVE ALONG PORTIONS
OF THE SOUTH SHORE. WITH HIGH PRESSURE NOSING IN FROM THE
NORTHWEST, CONDITIONS ELSEWHERE ARE QUIET WITH LIGHT WINDS WITH
ONLY A COUPLE LOCATIONS SHOWING LIGHT FOG. FOR THE REST OF
TONIGHT, CANNOT RULE OUT A SHOWER AT THE TIP OF THE ARROWHEAD,
BUT OTHER LOCATIONS SHOULD REMAIN DRY. BOUNDARY LAYER WINDS
REMAIN AT 5-10KTS OVERNIGHT, SO DO NOT EXPECT WIDESPREAD FOG
DEVELOPMENT, BUT WILL KEEP AN EYE ON VISIBILITIES TOWARD
SUNRISE.
PLEASANT CONDITIONS EXPECTED TODAY AND MONDAY, WITH MOSTLY
SUNNY SKIES AND TEMPERATURES IN THE LOW TO MID 70S, WITH 60S
NEAR LAKE SUPERIOR. WINDS WILL BE FROM THE NORTH TO NORTHEAST,
AND NEAR OR LESS THAN 10MPH.
DISCUSSION
ISSUED AT 1142 AM CDT SAT JUN 20 2026
OUR NEXT NOTABLE CHANGE ARRIVES TUESDAY AS A LOW PRESSURE
SYSTEM APPROACHES THE REGION FROM THE WEST. SHOWERS WILL BECOME
LIKELY FROM WEST TO EAST DURING THE DAY ON TUESDAY, AND A FEW
EMBEDDED THUNDERSTORMS ARE POSSIBLE BY THE AFTERNOON AND EVENING
HOURS. SEVERE WEATHER IS NOT ANTICIPATED DUE TO LIMITED
ATMOSPHERIC INSTABILITY. LINGERING MOISTURE AND CYCLONIC FLOW
BEHIND THE DEPARTING SYSTEM WILL KEEP SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS IN THE FORECAST FOR WEDNESDAY.
LOOKING TOWARD THE LATTER HALF OF THE WEEK, NORTHWEST FLOW
BEGINS TO INCH EASTWARD THURSDAY AND FRIDAY. THIS SETUP WILL
FAVOR SLIGHT DAILY CHANCES FOR AFTERNOON SHOWERS AND
THUNDERSTORMS. TEMPERATURES WILL GRADUALLY WARM BACK CLOSER TO
OUR SEASONAL NORMALS AS WE APPROACH NEXT WEEKEND, WITH DAYTIME
HIGHS CLIMBING WELL INTO THE 70S AND WE BEGIN TO BUILD
INSTABILITY BACK INTO THE REGION FOR BETTER CHANCES FOR
THUNDERSTORMS AND POSSIBLY SOME STRONGER ONES TOO BY THE END OF
THE MONTH.
AVIATION /06Z TAFS THROUGH 06Z MONDAY/
ISSUED AT 1216 AM CDT SUN JUN 21 2026
VFR CONDITIONS EXPECTED THROUGH THE FORECAST PERIOD, WITH LIGHT
AND VARIABLE WINDS AS HIGH PRESSURE MOVES INTO THE REGION.
WILL KEEP AN EYE ON LOCALIZED FOG DEVELOPMENT OVERNIGHT, BUT
WITH LIMITED RAIN COVERAGE DURING THE DAY SATURDAY, AND BOUNDARY
LAYER WINDS AT 10KTS OVERNIGHT, DO NOT EXPECT WIDESPREAD VIS
REDUCTIONS.
MARINE /FOR NEARSHORE WATERS OF WESTERN LAKE SUPERIOR/
ISSUED AT 309 AM CDT SUN JUN 21 20266
NORTHEAST WINDS EXPECTED TODAY, LESS THAN 10KTS. WINDS BECOME
MORE VARIABLE AND LESS THAN 5KTS MONDAY FOR MOST OF THE
NEARSHORE WATERS. NEAR GRAND PORTAGE, WIND WILL BE MORE
PREDOMINANTLY SOUTHEAST AT 5-10KTS. WAVES WILL BE 1 FOOT OR LESS
ACROSS THE NEARSHORE WATERS. WIDESPREAD RAIN CHANCES RETURN ON
TUESDAY.
FOR THE OPEN WATER DISCUSSION, REFER TO THE NWS MARQUETTE AREA
FORECAST DISCUSSION AT WEATHER.GOV/MQT.
FIRE WEATHER
ISSUED AT 309 AM CDT SUN JUN 21 2026
TODAY AND MONDAY, WINDS SHIFT TO THE NORTH AND NORTHEAST AT
5-10MPH, WITH MINIMUM RELATIVE HUMIDITY VALUES FALLING INTO THE
30 TO 40 PERCENT RANGE UNDER MOSTLY SUNNY SKIES. MOISTURE AND
RAIN CHANCES INCREASE AGAIN BY TUESDAY WITH A WETTING RAIN
POSSIBLE.
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...HA/WOLFE
AVIATION...HA
MARINE...HA
FIRE WEATHER...HA
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