Area Forecast Discussion
Issued by NWS Rapid City, SD

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000
FXUS63 KUNR 080914
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
314 AM MDT TUE JUL 8 2014

.SHORT TERM...TODAY THROUGH WEDNESDAY NIGHT
ISSUED AT 259 AM MDT TUE JUL 8 2014

HIGH PRESSURE WILL PRODUCE SUNNY SKIES OVER THE AREA TODAY. HIGH
TEMPERATURES ARE EXPECTED TO MAINLY BE IN THE 70S. THE HIGH
PRESSURE AREA WILL SLIDE OF TO THE EAST TONIGHT FOLLOWED BY
INCREASING SOUTHERLY RETURN FLOW ON THE WEST SIDE OF THE HIGH.
THERE IS A SLIGHT CHANCE OF THUNDERSTORMS LATE TONIGHT IN THE
AREA OF BEST THETA-E ADVECTION OVER PARTS OF SOUTHWESTERN AND
SOUTH CENTRAL SOUTH DAKOTA. SOUTHEASTERLY SFC FLOW ON WEDNESDAY
WILL ADVECT MORE LL MOISTURE NORTHWARD INTO THE AREA. INSTABILITY
DUE TO DIURNAL HEATING AND THE INCREASING MOISTURE AND AN
APPROACHING UPPER SHORTWAVE WILL COMBINE TO PRODUCE A SLIGHT
CHANCE OF THUNDERSTORMS LATE WEDNESDAY AFTERNOON. THERE WILL BE A
BETTER CHANCE OF THUNDERSTORMS ON WEDNESDAY NIGHT AS A STRONGER
DISTURBANCE CROSSES THE FORECAST AREA.

&&

.LONG TERM...THURSDAY THROUGH MONDAY
ISSUED AT 259 AM MDT TUE JUL 8 2014

UPPER LEVEL RIDGING WILL BE IN PLACE ACROSS MUCH OF THE WESTERN
CONUS THROUGH THE EXTENDED. OCCASIONAL WAVES WILL CROSS THE REGION
TO PRODUCE SCATTERED SHOWERS AND THUNDERSTORMS. THE BEST CHANCE FOR
STORMS WILL BE FRIDAY AND FRIDAY NIGHT AS A STRONG WAVE CROSSES THE
AREA ALONG WITH A FRONTAL BOUNDARY. OTHERWISE NORTHWEST FLOW ALOFT
WILL CONTINUE WITH NEARLY DAILY CHANCES FOR STORMS.

&&

.AVIATION...FOR THE 06Z TAFS THROUGH 06Z TUESDAY NIGHT
ISSUED AT 259 AM MDT TUE JUL 8 2014

VFR CONDITIONS ARE EXPECTED THROUGH THE FORECAST PERIOD.

&&

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

$$

SHORT TERM...10
LONG TERM...13
AVIATION...13





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