Area Forecast Discussion
Issued by NWS Rapid City, SD

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FXUS63 KUNR 241725
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
ISSUED BY NATIONAL WEATHER SERVICE NORTH PLATTE NE
1125 AM MDT MON AUG 24 2015

.SHORT TERM...TODAY THROUGH TUESDAY NIGHT
ISSUED AT 224 AM MDT MON AUG 24 2015

UPPER RIDGE CONTINUES TO BUILD OVER THE WESTERN CONUS...RESULTING
IN CLEAR SKIES ACROSS THE REGION. SURFACE HIGH PRESSURE IS DRAPED
ACROSS THE WESTERN DAKOTAS AND NEBRASKA. WITH LIGHT AND VARIABLE
WINDS...TEMPS AT 2AM ARE IN THE 40S TO LOWER 50S.

HIGH PRESSURE WILL KEEP DRY WEATHER AND MOSTLY CLEAR SKIES AROUND
FOR THE NEXT COUPLE DAYS. AS SURFACE HIGH SHIFTS EASTWARD...RETURN
FLOW WILL HELP BRING WARMER AIR INTO THE REGION...WITH SLIGHTLY
BREEZY SOUTHERLY WINDS ON TUESDAY. HIGHS WILL BE IN THE UPPER 70S TO
UPPER 80S TODAY...AND LOWER 80S TO LOWER 90S ON TUESDAY. LOWS
GENERALLY IN THE 50S ARE EXPECTED BOTH NIGHTS.

.LONG TERM...WEDNESDAY THROUGH SUNDAY
ISSUED AT 224 AM MDT MON AUG 24 2015

AN UPPER LEVEL RIDGE WILL DOMINATE THE PATTERN OVER
CENTRAL NORTH AMERICA THROUGH NEXT WEEKEND. IT WILL PEAK
WEDNESDAY...BUT THEN A SHORTWAVE WILL MOVE FROM THE SOUTHWEST US AND
LIKELY CLOSE OFF OVER THE NORTHERN PLAINS THURSDAY. 00Z
ECMWF/GFS IN FAIRLY GOOD AGREEMENT WITH THIS SCENARIO. HAVE
INCREASED POPS AS A RESULT. SEVERAL WEAKER DISTURBANCES MOVE THROUGH
FOR FRIDAY INTO THE WEEKEND WITH LOW POPS WARRANTED. TEMPERATURES
WILL BE QUITE WARM WEDNESDAY...COOLER THURSDAY/FRIDAY...AND THEN
WARMER AGAIN INTO THE WEEKEND AS THERMAL RIDGE BUILDS BACK INTO THE
AREA.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z TUESDAY)
ISSUED AT 1124 AM MDT MON AUG 24 2015

VFR CONDITIONS EXPECTED THROUGH TUESDAY MORNING.

&&

.UNR WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
WY...NONE.

&&

$$

SHORT TERM...POJORLIE
LONG TERM...HELGESON
AVIATION...MARTIN


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