Area Forecast Discussion
Issued by NWS Grand Forks, ND

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FXUS63 KFGF 232001
AFDFGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
301 PM CDT WED JUL 23 2014

.SHORT TERM...(THIS EVENING THROUGH THURSDAY NIGHT)
ISSUED AT 301 PM CDT WED JUL 23 2014

CUMULUS FIELD FORMED THIS AFTERNOON ACROSS PORTIONS OF THE
NORTHEASTERN AND EASTERN FA WHILE A STEADY STREAM OF MID LEVEL
CLOUDS HAVE PROGRESSED THROUGH THE WESTERN FA. THINK THE CUMULUS
WILL FADE AWAY THROUGH THE EVENING BUT THERE WILL BE A STEADY
AMOUNT OF MID LEVEL CLOUDS MOVING IN KEEPING AT LEAST THE WEST
PARTLY CLOUDY. LOOKS LIKE TSTMS SHOULD FIRE OUT OVER THE WESTERN
PART OF ND TONIGHT AND SLOWLY TREND EASTWARD TOWARD MORNING. WILL
INSERT SOME LOW TSTM CHANCES FOR LATE NIGHT IN CASE ANY OF THIS
ACTIVITY REACHES OUR FAR WEST. PRETTY DECENT LOW LEVEL JET TONIGHT
WITH STEADY WARM ADVECTION SHOULD HELP KEEP THESE TSTMS GOING OUT
WEST THRU THE NIGHT. QUESTION THEN IS HOW MUCH OF THIS ACTIVITY TO
THE WEST AFFECTS THE FA ON THU. AT THIS POINT SINCE THE LOW LEVEL
JET HOLDS TOGETHER SOMEWHAT AND THERE IS A DECENT SHORT WAVE WILL
MAINTAIN TSTM CHANCES PRETTY MUCH AS THEY WERE. DO NOT HAVE A LOT
OF CONFIDENCE IN THU NIGHT CHANCES. MODELS SEEM TO AGREE BEST ON
KEEPING SOMETHING LINGERING IN THE NORTHEAST BUT THERE IS ALSO A
WEAK SFC BOUNDARY THAT MOVES INTO EASTERN ND. PRETTY HARD TO
ELIMINATE PCPN CHANCES FOR ANY AREAS.

.LONG TERM...(FRIDAY THROUGH WEDNESDAY)
ISSUED AT 301 PM CDT WED JUL 23 2014

ABOVE MENTIONED SFC BOUNDARY CONTINUES TO DRIFT INTO NORTHWEST MN
ON FRIDAY. HIGHER DEW POINT VALUES POOL ALONG AND AHEAD OF THIS
BOUNDARY WHICH WILL BRING MORE TSTMS TO THESE AREAS. SPC DAY3
OUTLOOK HAS A SEE TEXT FOR MOST OF OUR FA. THESE STORMS SHOULD
MOVE OUT FRIDAY NIGHT. AN UPPER LOW WILL DROP INTO THE NORTHERN FA
ON SATURDAY. COMBINATION OF COLD TEMPS ALOFT AND DAYTIME HEATING
SHOULD MAKE FOR MORE SHOWERS/TSTMS BY AFTERNOON...MAINLY ALONG AND
NORTH OF INTERSTATE 94 IN ND/HIGHWAY 10 IN MN.

SAT NIGHT THROUGH WEDNESDAY...ECMWF AND GFS IN FAMOUS AGREEMENT
FOR THE EXTENDED FORECAST TIMEFRAME WITH CLOSED LOW NORTH OF
REGION PROPAGATING TO THE EAST DURING SUNDAY TAKING ANY PCPN OUT
OF THE AREA. HIGH PRESSURE WILL FOLLOW FOR MONDAY AND TUESDAY WITH
SUNNY WARM AND DRY CONDITIONS PREVAILING. LONG WAVE RANGE WILL
STAY IN PLACE FROM MONTANA THROUGH DESERT SOUTHWEST...WITH NORTH
TO NORTHWEST FLOW PREVAILING OVER THE NORTHERN PLAINS. HINT OF A
SHORT WAVE MOVING THROUGH THIS FLOW BY DAY 7...MAYBE TOO FAST BUT
MAINTAINED ALLBLEND LOW POPS AS THE PERIOD ENDS. EXPECT LITTLE DAY
TO DAY VARIATION IN TEMPS WITH HIGHS IN THE MID 70S TO LOWER 80S
AND LOWS IN THE MID-50S.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z THURSDAY AFTERNOON)
ISSUED AT 1246 PM CDT WED JUL 23 2014

SOME CELLULAR CU FORMING JUST EAST OF FORECAST AREA...BELIEVE
SCATTERED VFR DECK LIKELY TO FORM VCNTY KBJI THIS AFTERNOON.
OTHERWISE LIGHT WINDS...TRENDING SE LATER TODAY AND TONIGHT...BEFORE
INCREASING ABV 10KT LATER IN TAF PERIOD THURSDAY.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...NONE.
MN...NONE.
&&

$$

SHORT TERM...GODON
LONG TERM...WJB/GODON
AVIATION...WJB





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