Area Forecast Discussion
Issued by NWS Grand Forks, ND

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574
FXUS63 KFGF 080520
AFDFGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
1120 PM CST SUN FEB 7 2016

.UPDATE...
ISSUED AT 1120 PM CST SUN FEB 7 2016

LIGHT SNOW AND 35 MPH WINDS HAVE NOW MOVED INTO FARGO
REGION...RESTRICTING VISIBILITY AS LOW AS ONE HALF MILE. WILL SEE
LIGHT SNOW CONTINUE ALONG AND SOUTH OF THE I 94 CORRIDOR OVER THE
NEXT SEVERAL HOURS. BAND OF SNOW WHICH HAS LINGERED OVER EASTERN
ND HAS NOW MOVED OVER THE CENTRAL/SOUTHERN VALLEY.

FOR BLIZZARD AREA...CROOKSTON CURRENTLY SEEING THE WORST
VISIBILITIES...WITH 40 MPH WINDS AND SNOW BRINGING ONE QUARTER
MILE VISIBILITIES AT THE AIRPORT. WINDS ACROSS THE FAR NORTHERN
VALLEY HAVE BEGAN TO RELAX AND VSBYS HAVE INCREASED SOME AT
AIRPORTS...BUT WITH UNCERTAINTY IN OPEN AREAS AND LIMITED
OBSERVATIONS FROM WESTERN MARSHALL COUNTY...WILL KEEP BLIZZARD
HEADLINE GOING AS ADVERTISED...EXPIRING AT 6 AM CST. WESTERN POLK
SHOULD SEE THE WORST CONDITIONS IN THE MIDNIGHT TO 6 AM TIMEFRAME.

&&

.SHORT TERM...(THIS EVENING THROUGH MONDAY NIGHT)
ISSUED AT 310 PM CST SUN FEB 7 2016

MAIN FORECAST CHALLENGE CONCERNS ONGOING HEADLINES. WILL RELY ON
HIGH RESOLUTION MODEL GUIDANCE FOR SNOW CHANCES OVERNIGHT
OTHERWISE MODELS IN REASONABLE AGREEMENT.

SURFACE PRESSURE RISE MAXIMA OVER VALLEY REGION ALONG WITH
STRONGEST LOW LEVEL COLD ADVECTION. AS FEATURE CONTINUES TO SHIFT
EAST SHOULD LOSE THE HIGHER GUSTS WITH EXCEPTION OF HIGHER
ELEVATIONS WEST OF THE VALLEY. WITH GUSTS OVER 40KTS IN THIS AREA
WILL MAINTAIN HIGH WIND HEADLINES AND CAN BE ADJUSTED PROBABLY
THIS EVENING. OTHERWISE SNOW BANDS CONTINUE FROM THE VALLEY EAST
WITH REDUCED VISIBILITY CONFINED TO STRONGER SNOW BANDS. APPEARS
TO BE A LOCALIZED AREA OF LOWER VSBY FROM METARS AND WEB CAMS JUST
EAST OF THE RED RIVER AND WILL NEED TO MAINTAIN BLIZZARD WARNING
THIS AREA. OTHERWISE VSBY GENERALLY AT OR ABOVE 4 MILES SO TOUGH
TO WARRANT BLIZZARD ELSEWHERE. WINDS TO STAY UP 20 TO 35 KTS
OVERNIGHT HOWEVER WITH NO BLOWING EXPECTED WITH CURRENT SNOW COVER
AND SHSN TO GRADUALLY SHIFT EAST FEEL VSBY WILL FURTHER IMPROVE
THIS EVENING. ADDITIONAL SNOW ACCUMULATION OF 1 TO 2
INCHES...HIGHEST AMOUNTS FARTHER EAST IN NW MN SO ALSO TOUGH TO
HOLD WITH WINTER STORM WARNING ADJACENT TO THE VALLEY. FOR THIS
WILL TRANSITION BLIZZARD AND WINTER STORM WARNING TO A WINTER WX
ADVISORY. WINDS AND CLOUDS WILL HOLD TEMPERATURES UP TO A DEGREE
OVERNIGHT GENERALLY IN THE SINGLE DIGITS AND TEENS.

-SN SHOULD BE CONFINED TO AREAS EAST OF THE VALLEY MONDAY MORNING
ENDING IN THE FORENOON. WITH BAROCLINIC ZONE W-E ACROSS THE REGION
WARMEST TEMPERATURES SHOULD BE ACROSS THE WEST IN THE TEENS WITH
SINGLE DIGITS ACROSS THE EAST.

WINDS DIMINISH MONDAY NIGHT AS HIGH PRESSURE RIDGE NOSES IN.
LESS WIND AND SOME CLEARING WILL DROP MINIMUMS TO SINGLE DIGITS
ABOVE AND BLO ZERO.

.LONG TERM...(TUESDAY THROUGH SUNDAY)
ISSUED AT 310 PM CST SUN FEB 7 2016

A RE-ENFORCING SHOT OF COLD AIR WILL MOVE DOWN THE NORTHERLY FLOW
INTO THE FA WHICH WILL KEEP TEMPERATURES WELL BELOW AVERAGE INTO
MIDWEEK. SNOW CHANCES LOOK SPOTTY AND MINIMAL CONFINED TO THE
WESTERN FA.

LITTLE CHANGE TO PROGRESSION OF UPPER PATTERN AND NORTHWEST FLOW
ALOFT IS EXPECTED TO REMAIN OVER THE AREA FOR MOST OF THE PERIOD.
WITH SOME DIFFERENCES IN MODELS SOLUTIONS...WENT WITH A BLEND ATTM.
THUS...CONDITIONS LOOK TO BE DRY FOR MONDAY NIGHT AND TUESDAY...BUT
A WAVE PROGRESSING OVER THE AREA LATER IN THE PERIOD WILL BRING
ENHANCED CHANCES FOR MEASURABLE PCPN. OTHERWISE...NEAR THE END OF
THE PERIOD WILL SEE A BIT OF RIDGE AMPLIFICATION AND ANOTHER
OPPORTUNITY FOR NEAR TO ABOVE NORMAL TEMPERATURES.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z MONDAY NIGHT)
ISSUED AT 1020 PM CST SUN FEB 7 2016

WINDS WILL BE STRONG AND GUST TO AROUND 35KT THROUGH MONDAY
AFTERNOON AND THEN SUBSIDE AFTER 21Z. EXPECT MAINLY MVFR CONDITIONS
WITH IFR/LIFR CONDITIONS NEAR ANY SNOW SHOWERS TONIGHT. IT WILL
SLOWLY IMPROVE LATER TONIGHT ONCE SNOW SHOWERS MOVE EAST OF THE
AREA. CLOUDS WILL HOLD ON THROUGH 00Z FOR ALL BUT THE WEST AND
SHOULD START TO SCATTER OUT AROUND 00Z TUE.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...WIND ADVISORY UNTIL 6 AM CST MONDAY FOR NDZ006-014-015-024-026-
     028-038-049-052.

     WINTER WEATHER ADVISORY UNTIL 6 AM CST MONDAY FOR NDZ007-016-027-
     029-030-039-053-054.

     BLIZZARD WARNING UNTIL 6 AM CST MONDAY FOR NDZ008.

MN...WINTER WEATHER ADVISORY UNTIL 6 AM CST MONDAY FOR MNZ003-005-006-
     008-009-013>017-022>024-027>032-040.

     BLIZZARD WARNING UNTIL 6 AM CST MONDAY FOR MNZ001-002-004-007.

&&

$$

UPDATE...SPEICHER
SHORT TERM...VOELKER
LONG TERM...HOPKINS/VOELKER
AVIATION...DK



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