Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 260538
AFDFGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
1138 PM CST WED FEB 25 2015

.UPDATE...
ISSUED AT 925 PM CST WED FEB 25 2015

REGION HAS COME UNDER THE INFLUENCE OF THE BUILDING SFC RIDGE.
TEMPERATURES ARE ON TRACK WITH EXPECTED VALUES...AND A WEAK SFC
PRESSURE GRADIENT WILL KEEP WINDS AOA 5 KNOTS. WIND CHILL ADVISORY
IN GOOD SHAPE.

&&

.SHORT TERM...(THIS EVENING THROUGH THURSDAY NIGHT)
ISSUED AT 316 PM CST WED FEB 25 2015

MAIN CHALLENGE WILL BE TEMPS OVERNIGHT WITH CLEARING SKIES AND
WINDS...BRINGING ANOTHER ROUND OF BITTER WIND CHILLS OVERNIGHT.

SATELLITE IMAGERY AND SFC OBSERVATIONS SHOW DECREASING CLOUDS AS
ARCTIC HIGH PRESSURE BUILDS INTO THE FA. THE HIGH CENTER WILL
CONTINUE SHIFTING SE TONIGHT AS THE 500HPA TROUGH CONTINUES TO DIG.
WITH CLEARING SKIES AND THE COLD AIR MASS...TEMPS WILL AGAIN LOWER
INTO THE -10 TO -20 RANGE OVERNIGHT. WINDS WILL STEADILY DECREASE IN
A WEAKENING PRESSURE GRADIENT AS THE CENTER OF HIGH PRESSURE MOVES
OUT OF CANADA...BUT WILL STILL BE ENOUGH TO PLUNGE WIND CHILLS AGAIN
INTO THE -25 TO -35 DEGREE RANGE. OTHERWISE...EXPECT HIGH PRESSURE
TO REMAIN IN CONTROL THRU FRI NIGHT WITH ANOTHER BOUT OF COLD
TEMPERATURES BEFORE MODERATING THIS WEEKEND.

FOR SATURDAY...SFC HIGH PRESSURE BEGINS TO RETREAT AND PUSH SE INTO
THE CENTRAL PLAINS AND OHIO VALLEY. RETURN FLOW WILL ALLOW TEMPS TO
MODERATE...BUT WINDS WILL STILL MAKE IT FEEL COLD. LITTLE PCPN
EXPECTED THRU THE PERIOD WITH SUBSIDENCE AND DRIER AIR ASSOCIATED
WITH THE SFC RIDGE IN PLACE OVER THE FA.

.LONG TERM...(FRIDAY THROUGH WEDNESDAY)
ISSUED AT 316 PM CST WED FEB 25 2015

FOR SAT NIGHT THROUGH WED...TEMPS WILL START THE PERIOD NEAR TO
SLIGHTLY BELOW NORMAL. A SYSTEM COULD SPREAD SOME LIGHT SNOW INTO
THE REGION MON NIGHT INTO TUE. A COLD FRONT WILL MOVE THROUGH TUE
NIGHT AND TEMPS SHOULD FALL BELOW NORMAL BY NEXT WED. THE OVERALL
PATTERN OF NW FLOW REMAIN NEARLY UNCHANGED THOUGH...SO NO MAJOR
PRECIP EVENTS EXPECTED WITH LIMITED MOISTURE AVAILABLE.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z THURSDAY NIGHT)
ISSUED AT 1138 PM CST WED FEB 25 2015

HIGH PRESSURE INFLUENCING THE REGION WILL LEAD TO MOSTLY CLEAR SKY
THIS PERIOD. WINDS WILL REMAIN BELOW 12 KNOTS.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR NDZ006>008-
     014>016-024-026>030-038-039-049-052>054.

MN...WIND CHILL ADVISORY UNTIL NOON CST THURSDAY FOR MNZ001>009-
     013>017-022>024-027>032-040.

&&

$$

UPDATE...TG
SHORT TERM...HOPKINS
LONG TERM...DK
AVIATION...TG



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