Area Forecast Discussion
Issued by NWS Rapid City, SD

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000
FXUS63 KUNR 282056
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
256 PM MDT THU MAY 28 2015

.SHORT TERM...THIS EVENING THROUGH FRIDAY NIGHT
ISSUED AT 255 PM MDT THU MAY 28 2015

CURRENT SURFACE MAP SHOWS TROF OF LOW PRESSURE ACROSS THE CENTRAL
DAKOTAS. WATER VAPOR IMAGERY PLACES CLOSED UPPER LOW OVER
SOUTHWEST WYOMING. WIDESPREAD THUNDERSTORMS OVER THE FORECAST
AREA...ESPECIALLY OVER NORTHEAST WYOMING INTO NORTHWEST SOUTH
DAKOTA. UPPER LOW TRACKS SLOWLY ALONG WY/CO BORDER
OVERNIGHT...AND INTO WESTERN NEBRASKA FRIDAY. WITH DECENT QG
FORCING AND STEEP LAPSE RATES...SHOWERS/THUNDERSTORMS WILL
CONTINUE THROUGH THE TONIGHT INTO FRIDAY.

.LONG TERM...SATURDAY THROUGH THURSDAY
ISSUED AT 255 PM MDT THU MAY 28 2015

UPPER LEVEL RIDGE DEVELOPS OVER THE NORTHERN PLAINS FOR
THE WEEKEND AS CANADIAN SURFACE HIGH PRESSURE SETTLES INTO THE AREA.
RETURN FLOW SETS UP SATURDAY BRINGING WARMER TEMPERATURES THROUGH
THE WEEKEND INTO MONDAY. SMALL CHANCES OF SHOWERS AND THUNDERSTORMS
WILL ALSO BE POSSIBLE SUNDAY AND MONDAY. GREATER PRECIPITATION
CHANCES RETURN FOR THE MIDDLE OF NEXT WEEK AS A WESTERN TROF
REDEVELOPS AND UPPER FLOW OVER THE NORTHERN PLAINS BECOMES
SOUTHWESTERLY.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z FRIDAY)
ISSUED AT 255 PM MDT THU MAY 28 2015

SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS MUCH OF
THE FORECAST AREA THROUGH TONIGHT INTO FRIDAY. VFR CONDITIONS
EXPECTED OUTSIDE OF PRECIPITATION...WITH MVFR CIGS/VSBYS AND GUSTY
WINDS NEAR ANY STORMS.

&&

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

$$

SHORT TERM...7
LONG TERM...13
AVIATION...13



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