564
FXUS63 KFGF 051624
AFDFGF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
1024 AM CST THU MAR 5 2026
KEY MESSAGES
- DENSE FOG CONTINUES THROUGH THE DAY.
- THERE IS A 40% CHANCE FOR ADVISORY IMPACTS FROM A WINTRY MIX
THURSDAY NIGHT INTO FRIDAY NIGHT.
- A MORE ACTIVE PATTERN MAY CONTINUE INTO NEXT WEEK BRINGING
ADDITIONAL OPPORTUNITIES FOR WINTER IMPACTS OVER PARTS OF THE
REGION. PREDICTABILITY IN IMPACTS REMAINS VERY LOW BEYOND
FRIDAY.
UPDATE
ISSUED AT 1022 AM CST THU MAR 5 2026
THE DENSE FOG ADVISORY HAS BEEN EXPANDED AND WILL CONTINUE
THROUGH THE REMAINDER OF THE AFTERNOON, AS ADVECTION FOG
CONTINUES TO SPREAD NORTHWESTWARD. IT IS LIKELY TRIMMING ON THE
SOUTHEASTERN EDGES WILL BE NECESSARY LATER TODAY AS THE WARM
FRONT PROGRESSES AWAY FROM OUR SOUTHEAST ZONES, BUT DIDN'T WANT
TO SPLIT HAIRS AT THIS POINT IN TIME.
UPDATE
ISSUED AT 619 AM CST THU MAR 5 2026
UPDATED AVIATION DISCUSSION FOR 12Z TAFS. DID TWEEK AREA OF
FZDZ BASED ON REPORTS WARREN MN TO FARGO ND SEEMS TO BE THE MAIN
AREA. FROM LIMITED SOCIAL MEDIA OR OTHER INFO SEEMS IMPACTS ARE
SCATTERED ICE ON UNTREATED SURFACES, ETC HENCE A SPS WAS DONE.
BUT I HAVENT SEEN IMPACTS TO THE ADVISORY LEVEL AT THIS TIME.
OBVIOUSLY SUBJECT TO CHANGE.
UPDATE
ISSUED AT 445 AM CST THU MAR 5 2026
EARLIER ADDED PATCHY FREEZING DRIZZLE TO THE FCST AND THAT SEEMS
TO BE WORKING OUT AS BROADCAST MEDIA REPORTED SLICK ROADS IN
FARGO. LIKELY FREEZING DRIZZLE IN OTHER AREAS AND DID INCLUDE
FREEZING DRIZZLE IN THE GRIDS FOR AREAS WITHIN THE CENTRAL AND
SOUTHERN RRV THRU MID MORNING. OTHERWISE FOG IS MOST DENSE IN
SOUTHEAST ND INTO MN LAKES COUNTRY AND LESS FARTHER NORTH AND
WAS ABLE TO REMOVE A STRIPE OF COUNTIES FROM DVL TO GFK FROM THE
ADVISORY AS VSBYS HAVE BEEN 2SM OR HIGHER.
DISCUSSION
ISSUED AT 216 PM CST WED MAR 4 2026
..SYNOPSIS
AT THE SURFACE, A BOUNDARY THAT KEEPS ALTERNATING BETWEEN BEING
STATIONARY (YESTERDAY), A WARM FRONT (LAST NIGHT) AND A COLD
FRONT (SUCH AS IT WAS MONDAY NIGHT), CONTINUES TO MEANDER. THIS
MORNING, IT WAS ADVANCING NORTH AS A WARM FRONT. CURRENTLY IT
APPEARS TO HAVE STALLED OR EVEN TAKING ON A SOUTHWARD/COLD
FRONT PROGRESSION IN THE LAST HOUR OR SO. THIS BOUNDARY IS
KEEPING AN EXTREMELY IMPRESSIVE TEMPERATURE GRADIENT IN PLACE
OVER OUR FA, WITH TEMPERATURES NEAR 10 IN THE NORTH, TO THE LOW
50S IN THE SOUTHERN RED RIVER VALLEY, ALOFT, ZONAL FLOW WILL
TRANSITION TO SOUTHWESTERLY FLOW TO END THE WORK WEEK. AS WE
TRANSITION, SEVERAL WAVES WILL PROPAGATE THOUGH/NEAR THE FA,
BRINGING PRECIPITATION CHANCES TO END THE WEEK. LATE IN THE
WEEKEND UPPER LEVEL FLOW GOES BACK TO ZONAL. THIS SHOULD ALLOW
FOR A FEW SHORTWAVES TO PASS THROUGH, THE STRONGEST AT THE TAIL
END OF THE FORECAST PERIOD TOWARDS THE MIDDLE OF NEXT WEEK.
..FOG CONTINUES
THE AFOREMENTIONED BOUNDARY CONTINUES TO BRING WARMER, THEN COLDER,
THEN WARMER TEMPERATURES TO AREAS APPROXIMATELY NORTH OF I94
AND SOUTH OF US HIGHWAY 2. THIS HAS RESULTED IN FOG BOTH OF THE
PAST TWO NIGHTS, ADVECTING NORTH OR SOUTH DEPENDING ON WHICH WAY
THE BOUNDARY IS PROPAGATING. FOG THIS AFTERNOON HAS BEEN VERY
PERSISTENT ALONG US HIGHWAY 2 FROM DEVILS LAKE EAST THROUGH
GRAND FORKS, THEN OVER TOWARDS THIEF RIVER FALLS/CROOKSTON. THIS
PATCH OF FOG SHOULD START TO ADVECT SOUTH AS THE BOUNDARY TAKES
ON THE CHARACTERISTICS OF A COLD FRONT THIS AFTERNOON INTO
TONIGHT. AFTER SUNSET, FOG SHOULD ALSO EXPAND IN COVERAGE, WITH
THE MOST WIDESPREAD COVERAGE EXPECTED IN SOUTHEASTERN ND INTO
WEST CENTRAL MN. THURSDAY DOES NOT SHOW MUCH IMPROVEMENT, AS THE
BOUNDARY, NOW TRACKING BACK TO THE NORTH, WILL LIKELY BRING
WIDESPREAD FOG TO AREAS NORTH OF I94. THIS FOG DOES NOT LOOK TO
REALLY CLEAR OUT THURSDAY AFTERNOON. FINALLY, A GOOD PUSH OF CAA
BEHIND A STRONGER COLD FRONT SOMETIME FRIDAY NIGHT WILL CLEAR
OUT THE FOG FROM WEST TO EAST.
..THURSDAY INTO FRIDAY PRECIPITATION
A WAVE TRACKING TO OUR NORTH IN CANADA WILL BRING WIDESPREAD
WAA AND ASSOCIATED LIFT OVER THE FA THURSDAY INTO EARLY FRIDAY.
WHILE THE BEST SYNOPTIC FORCING REMAINS IN CANADA (AND THUS SO
SHOULD THE HEAVIEST PRECIPITATION), THERE ARE STILL TWO PERIODS
OF CONCERN. THE FIRST IS THURSDAY AFTERNOON AS THE WAVE
APPROACHES. INCREASING ASCENT, AND A SATURATED BOUNDARY LAYER
BRINGS THE POTENTIAL FOR NOT JUST FOG, BUT ALSO DRIZZLE.
TEMPERATURES WILL BE RIGHT AROUND FREEZING, WHICH MAKES
DETERMINING POTENTIAL IMPACTS TRICKY. HOWEVER, THIS WILL NEED TO
BE MONITORED. SECOND, AS THE LOWS ATTENDANT COLD FRONT PUSHES
THROUGH THURSDAY NIGHT, A SECOND BATCH OF PRECIPITATION SHOULD
BREAK OUT. HOW WIDESPREAD THIS BECOMES IS UNCERTAIN, WITH
DIFFERENT MODELS SHOWING DIFFERING SCENARIOS. HOWEVER, ONE THING
THAT IS CONSISTENT IS THAT TEMPERATURES WITHIN SOUNDING
PROFILES WILL PLAY A CRITICAL ROLE IN DETERMINING PRECIPITATION
TYPE. A MAJORITY OF MODEL GUIDANCE SHOWS FREEZING RAIN AS THE
FAVORED PRECIP TYPE, WHICH MAKES SENSE BASED ON THE WARM NOSE
ALOFT, BUT THIS WILL AGAIN BE DEPENDENT ON SURFACE TEMPERATURES
BEING BELOW FREEZING FOR ICING IMPACTS. THEREFORE, THERE IS A
20% CHANCE OF MEETING WINTER WEATHER ADVISORY CRITERIA, WITH
POTENTIAL ICING AS THE DRIVING FACTOR.
..THE WEEKEND AND BEYOND
SOUTHWESTERLY FLOW BRINGS ANOTHER WAVE INTO THE UPPER MIDWEST
FRIDAY/EARLY SATURDAY. THE GFS AND ITS ENSEMBLE MEMBERS REMAIN
FURTHER NORTH AND STRONGER WITH THIS SYSTEM, WHILE THE CANADIAN
AND EUROPEAN ENSEMBLE SUITES ARE FURTHER SOUTH/WEAKER. THE MOST
LIKELY AREA TO SEE ANY IMPACTS WOULD BE OUR SOUTHERN FA FRIDAY
AFTERNOON INTO THE OVERNIGHT, BUT AT THIS TIME THERE REMAINS
SIGNIFICANT UNCERTAINTY IN WHERE/IF ANY WILL OCCUR. BEHIND THIS
SYSTEM, A RETURN TO ZONAL FLOW BRINGS A SURGE OF WARMER PACIFIC
AIR. A FEW WEAK WAVES ARE SHOWN BY VARIOUS MODEL GUIDANCE EARLY
IN THE WEEK, BUT THERE IS LITTLE AGREEMENT IN EACH FEATURES
PLACEMENT/TIMING/STRENGTH. THERE IS BROADER AGREEMENT IN A
LARGER SYSTEM WITHIN OUR REGION TOWARDS THE MIDDLE OF NEXT WORK
WEEK. HOWEVER, THERE REMAINS CONSIDERABLE SPREAD IN POTENTIAL
SCENARIOS REGARDING THE SYSTEMS FINAL EVOLUTION.
AVIATION /12Z TAFS THROUGH 12Z FRIDAY/
ISSUED AT 619 AM CST THU MAR 5 2026
ANOTHER MORNING OF VLIFR, LIFR, AND IFR CONDITIONS ACROSS THE
AREA WITH FOG, LOW CLOUDS AND SOME FREEZING DRIZZLE. WARMER AIR
WILL RETURN INTO THE SOUTH VALLEY UP TO FARGO AND WEST CENTRAL
MN UP TO BEMIDJI THIS AFTERNOON AND EVENING AS WINDS TURN
SOUTHEAST. THIS MAY AID IN THE RISING OF CEILINGS. OTHERWISE IN
THE AREAS WITH A NORTH-NORTHEAST WIND SUCH AS GFK AND DVL LOW
CLOUDS SUB 1000 FT AGL CONTINUES. TVF LIKELY AS WELL SUB 1000 FT
AGL CEILINGS, BUT BOUNDARY MAY MOVE INTO THE AREA LATE TODAY AND
EVENING TURNING WINDS SOUTHEAST THERE.
FGF WATCHES/WARNINGS/ADVISORIES
ND...DENSE FOG ADVISORY UNTIL 6 PM CST THIS EVENING FOR NDZ006>008-
014>016-024-026>030-038-039-049-052>054.
WINTER WEATHER ADVISORY UNTIL 11 AM CST THIS MORNING FOR
NDZ016-026>030-038-039-054.
MN...DENSE FOG ADVISORY UNTIL 6 PM CST THIS EVENING FOR MNZ001>004-
007-015>017-022>024-027>032-040.
WINTER WEATHER ADVISORY UNTIL 11 AM CST THIS MORNING FOR
MNZ001>003-007.
UPDATE...LYNCH/PERROUX/RIDDLE
DISCUSSION...RAFFERTY
AVIATION...RIDDLE
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