Area Forecast Discussion
Issued by NWS Grand Forks, ND

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000
FXUS63 KFGF 221740
AFDFGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
1240 PM CDT TUE JUL 22 2014

.UPDATE...
ISSUED AT 1237 PM CDT TUE JUL 22 2014

LITTLE CHANGES NEED... DID TWEAK THE TEMPS TO MATCH THE CURRENT TRENDS
ACROSS THE AREA. CU DEVELOPMENT HAS BEGUN AND WILL CONTINUE TO EVOLVE
AS EXPECTED.

&&

.SHORT TERM...(TODAY THROUGH WEDNESDAY)
ISSUED AT 352 AM CDT TUE JUL 22 2014

CHALLENGES INCLUDE TEMPERATURES THROUGH THE PERIOD AND CONVECTIVE
CHANCES THURSDAY/THURSDAY NIGHT. GLOBAL MODELS ARE IN GOOD AGREEMENT
AND WILL USE A BLENDED SOLUTION FOR THIS FORECAST PACKAGE.

EARLY THIS MORNING...WILL ALLOW WAKE LOW INDUCED HIGH WIND WARNING
TO EXPIRE AT 4 AM CDT. AFTER INITIAL HIGH WIND REPORT A GFK...
STRONGER WINDS HAVE FAILED TO MATERIALIZE FARTHER EAST INTO
NORTHWEST MN. STILL SEEING SOME GUSTS ON THE BACKSIDE OF DEPARTING
SFC LOW AROUND 30 MPH...BUT WINDS SHOULD BE DECREASING THE REST OF
THE NIGHT. OTHER FLOOD ADVISORIES AND FLASH FLOOD WARNING STILL ON
TRACK FROM HEAVIER RAIN LAST EVENING.

LAST OF WRAP AROUND RAIN SHOWERS NOW MOVING THROUGH LAKE OF THE
WOODS/BELTRAMI/CLEARWATER COUNTIES AND SHOULD EXIT THE FORECAST
AREA BY 12 UTC. FOR THE REST OF TODAY...A MUCH DRIER AIR MASS WILL
BE IN PLACE. SOME RESIDUAL MID-LEVEL MOISTURE MAY RESULT IN SOME
FAIR WEATHER THERMAL CU...BUT EXPECT MOSTLY SUNNY SKIES TO MOVE IN
BY THE NOON HOUR. TEMPERATURES WILL TOP OUT IN THE MID 70S TO NEAR
80 DEGREES WITH NORTHERLY WINDS FROM 10 TO 15 MPH. SFC HIGH PRESSURE
BUILDS ACROSS THE NORTHERN PLAINS TONIGHT WITH CLEAR SKIES AND LIGHT
WINDS. TEMPERATURES WILL DROP INTO THE 50S.

WEDNESDAY WILL BE GORGEOUS WITH CONTINUED HIGH PRESSURE AND LIGHT
WIND. TEMPERATURES NOT LIKELY TO DEVIATE MUCH FROM TODAYS HIGHS
WITH MAXIMUM VALUES FROM THE MID 70S TO 80 DEGREES.

.LONG TERM...(WEDNESDAY NIGHT THROUGH MONDAY)
ISSUED AT 352 AM CDT TUE JUL 22 2014

SHOWER AND THUNDERSTORM CHANCES WILL VERY SLOWLY INCREASE FROM
WEST TO EAST ACROSS THE DAKOTAS AND INTO WESTERN MN WEDNESDAY
NIGHT THROUGH THURSDAY NIGHT...AS AN EASTERN PACIFIC SHORT-WAVE
MOVES INTO SOUTHERN ALBERTA AND ITS NORTHWEST TO SOUTHEAST
ORIENTED MID-LEVEL TROUGH MEANDERS ACROSS THE NORTHERN PLAINS.
WILL INCREASE CHANCE POPS FROM WEST TO EAST THROUGH THE PERIOD.
ANY SEVERE CONVECTION THURSDAY SHOULD BE CONFINED TO WESTERN ND
INTO CENTRAL SD ALONG NARROW PLUME OF HIGHER INSTABILITY.

FRIDAY-MONDAY...MODELS INDICATE THAT A STRONG UPPER LOW WILL
KNOCK DOWN THE RIDGING...AND PROPAGATE THROUGH THE REGION
SATURDAY/SUNDAY. THE BEST PRECIP CHANCES WILL BE ASSOCIATED WITH
THIS UPPER LOW. TEMPERATURES WILL BE NEAR NORMAL VALUES...WITH
EXACT VALUES DEPENDENT ON THE LOCATION OF THE UPPER LOW (FOR
EXAMPLE...IF THE 00Z ECMWF VERIFIES TEMPS ON SUNDAY MAY BE COOLER
THAN FORECASTED).

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z WEDNESDAY AFTERNOON)
ISSUED AT 1237 PM CDT TUE JUL 22 2014

VFR CONDITIONS THROUGH THE PERIOD WITH ONLY A FEW MID AND HIGH
CLOUDS. NORTH WINDS WILL DROP BELOW 8 KTS THIS EVENING...WITH SOME
VARIABILITY. KDVL AREA SHOULD SEE WINDS PICKING UP OUT OF THE
SOUTHEAST BY MID DAY TOMORROW TO AROUND 10 KTS OR SO.

&&

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

$$

UPDATE...JK
SHORT TERM...ROGERS
LONG TERM...ROGERS/TG
AVIATION...JR







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