Area Forecast Discussion
Issued by NWS Rapid City, SD

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000
FXUS63 KUNR 180733
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
133 AM MDT SAT OCT 18 2014

.SHORT TERM...TODAY THROUGH SUNDAY NIGHT
ISSUED AT 130 AM MDT SAT OCT 18 2014

UPPER LEVEL ANALYSIS SHOWS A RIDGE BUILDING INTO THE CENTRAL
STATES. SKIES ARE MOSTLY CLEAR ACROSS THE CWA...OTHER THAN SOME
CIRRUS STREAMING IN FROM THE NORTHWEST. WITH THE SURFACE HIGH TO
THE EAST...WINDS ARE SOUTHEASTERLY. TEMPS ARE MAINLY IN THE
30S...WITH SOME 40S ACROSS NORTHEAST WY.

HIGH PRESSURE WILL KEEP SKIES MOSTLY SUNNY TODAY. TEMPS WILL BE
ABOVE AVERAGE...IN THE LOW 60S TO LOW 70S. RETURN FLOW INCREASES AS
PRESSURE GRADIENT TIGHTENS BEHIND THE SURFACE HIGH...AND SOUTHERLY
WINDS WILL BECOME BREEZY AROUND 15 KTS.

A WEAK UPPER WAVE WILL BRIEFLY FLATTEN THE RIDGE TONIGHT...AND WINDS
WILL SHIFT TO THE WEST/NORTHWEST AS THE SURFACE TROUGH MOVES
THROUGH. CLOUDS WILL INCREASE OVERNIGHT...AND LOWS WILL BE MAINLY IN
THE 40S.

THE UPPER RIDGE REBUILDS FOR SUNDAY. EXPECT SUNNY SKIES...LIGHT
WINDS...AND HIGHS IN THE LOWER 70S...WITH 60S IN THE BLACK HILLS.

&&

.LONG TERM...MONDAY THROUGH FRIDAY
ISSUED AT 130 AM MDT SAT OCT 18 2014

UPPER RIDGE WILL BE LOCATED ACROSS THE DAKOTAS ON MONDAY AS TROF
MOVES INTO THE WESTERN CONUS. UPPER TROF SLIDES THROUGH THE PLAINS
WEDNESDAY...WITH A SMALL CHANCE OF SHOWERS. RIDGE REBUILDS ACROSS
THE AREA FOR THE END OF THE WEEK. TEMPERATURES WILL BE WELL ABOVE
AVERAGE THROUGH THE WEEK. COOLEST DAY WILL BE WEDNESDAY WITH
CLOUDS/SHOWERS.

&&

.AVIATION...FOR THE 12Z TAFS THROUGH 12Z SATURDAY NIGHT
ISSUED AT 130 AM MDT SAT OCT 18 2014

VFR CONDITIONS EXPECTED THROUGH TONIGHT.

&&

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

$$

SHORT TERM...POJORLIE
LONG TERM...7
AVIATION...7





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