Area Forecast Discussion
Issued by NWS Rapid City, SD

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000
FXUS63 KUNR 151117
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
517 AM MDT MON SEP 15 2014

.SHORT TERM...TODAY THROUGH TUESDAY NIGHT
ISSUED AT 230 AM MDT MON SEP 15 2014

UPPER RIDGE BUILDING TO THE WEST WILL COMBINE WITH SFC HIGH
PRESSURE TO PRODUCE SUNNY SKIES OVER THE AREA TODAY. SOUTHERLY
RETURN FLOW AND ABUNDANT SUNSHINE WILL PUSH TEMPERATURES INTO THE
MID 60S TO LOWER 70S THIS AFTERNOON. FOR TONIGHT...DOWNSLOPING
SOUTHWESTERLY WINDS ASSOCIATED WITH A WEAK NOCTURNAL LLJ WILL KEEP
LOW TEMPERATURES SLIGHTLY WARMER THAN THE PAST COUPLE OF NIGHTS.
TUESDAY WILL BE MOSTLY SUNNY WITH HIGHS IN THE MID 70S TO LOWER
80S AS THE THE AMPLITUDE OF THE UPPER RIDGE INCREASES AND THE RIDGE SHIFTS
EASTWARD TOWARD THE FORECAST AREA.

&&

.LONG TERM...WEDNESDAY THROUGH SUNDAY
ISSUED AT 230 AM MDT MON SEP 15 2014

AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BUILD ACROSS
THE WESTERN CONUS FOR MID WEEK...BRINGING DRY CONDITIONS AND NEAR TO
ABOVE AVERAGE TEMPERATURES. UPPER RIDGE AXIS SLIDES ACROSS THE CWA
ON THURSDAY. WITH THERMAL RIDGE OVER THE AREA...WILL SEE THE WARMEST
TEMPS OF THE WEEK. A CHANCE FOR SHOWERS WILL BE POSSIBLE BY THURSDAY
EVENING OVER NORTHEASTERN WYOMING AND THE BLACK HILLS. UPPER RIDGE
CONTINUES TO SLIDE EAST AND BREAK DOWN AS AN UPPER TROF SWINGS
THROUGH THE NORTHERN PLAINS ON FRIDAY AND SATURDAY. WITH INCREASING
PACIFIC MOISTURE...THERE WILL BE A CHANCE FOR SHOWERS AND
THUNDERSTORMS AND SLIGHTLY COOLER TEMPERATURES. WESTERN RIDGE THEN
REFORMS AND BUILDS AGAIN ON SUNDAY...RESULTING IN DRY CONDITIONS FOR
THE FORECAST AREA.

&&

.AVIATION...(FOR THE 12Z TAFS THROUGH 12Z TUESDAY MORNING)
ISSUED AT 516 AM MDT MON SEP 15 2014

VFR CONDITIONS ARE EXPECTED THROUGH THE FORECAST PERIOD.

&&

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

$$

SHORT TERM...10
LONG TERM...15
AVIATION...15





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