Area Forecast Discussion
Issued by NWS Rapid City, SD

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000
FXUS63 KUNR 212330
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
530 PM MDT TUE OCT 21 2014

.SHORT TERM...THIS EVENING THROUGH WEDNESDAY NIGHT
ISSUED AT 231 PM MDT TUE OCT 21 2014

UPPER RIDGING HAS PUSHED EWD WITH THE MAIN AXIS NOW CENTERED ACROSS
THE UPPER MIDWEST. A STRONG SHORTWAVE OVER THE NRN ROCKIES IS
SLIDING EAST WITH STRONG SWRLY FLOW OVER THE CWA. SURFACE LOW HAS
DEVELOPED OVER ERN MT WITH BREEZY SRLY WINDS OVER THE CNTRL SD
PLAINS...AND SWRLY WINDS OVER NE WY TO FAR WRN SD.

CLOUDS WILL INCREASE THIS EVENING AS THE UPPER WAVE APPROACHES. A
COLD FRONT WILL ACCOMPANY THIS SYSTEM...PUSHING THROUGH THE CWA
OVERNIGHT. ISLD SHRA WILL ALSO DEVELOP OVERNIGHT...BUT LACK OF
MOISTURE WILL WARRANT KEEPING POPS LOW.

LIGHT SHOWER ACTIVITY WILL PUSH EWD INTO CNTRL SD WED
MORNING...CLEARING THE CWA BY EARLY AFTN. STRONG SUBSIDENCE BEHIND
THE DEPARTING WAVE WILL BRING A RETURN OF SUNNY SKIES TO THE
AREA...AND CLEAR SKIES WED NIGHT. HIGHS TOMORROW WILL BE
COOLER...MAINLY IN THE 60S WITH BREEZY NW WINDS OVER NW TO CNTRL SD.
WITH LIGHT WINDS AND CLEAR SKIES WED NIGHT...HAVE DROPPED MIN TEMPS
SLIGHTLY...INTO THE LOWER 30S IN SOME SPOTS.

&&

.LONG TERM...THURSDAY THROUGH TUESDAY
ISSUED AT 231 PM MDT TUE OCT 21 2014

AN UPPER LEVEL RIDGE WILL REBUILD OVER THE AREA FOR THURSDAY
THROUGH SATURDAY WITH LEE TROUGH DEVELOPING ACROSS CENTRAL MT INTO
EASTERN CO. TEMPERATURES WILL SLOWLY RISE ABOVE AVERAGE AGAIN WITH
READINGS 10 TO 20F ABOVE AVERAGE. UPPER RIDGE SHIFTS EAST SUNDAY
INTO EARLY NEXT WEEK ALLOWING TROUGH TO MOVE OVER THE CWA. RESULT
WILL BE A COOL DOWN SUNDAY AND MONDAY ALONG WITH A FEW SHOWERS.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY EVENING)
ISSUED AT 518 PM MDT TUE OCT 21 2014

AN UPPER TROUGH AND COLD FRONT WILL PUSH THROUGH THE REGION
TONIGHT...SUPPORTING ISOLATED SHRA/TS. NO FLT RESTRICTIONS ARE
EXPECTED. GUSTY NORTHWEST WINDS TO AROUND 25KTS ARE EXPECTED
BEHIND THE COLD FRONT LATE TONIGHT/WEDNESDAY. VFR CONDITIONS WILL
CONTINUE THROUGH WEDNESDAY.

&&

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

$$

SHORT TERM...13
LONG TERM...JOHNSON
AVIATION...JC






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