053 
FXUS63 KUNR 272304
AFDUNR

AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
504 PM MDT THU JUN 27 2013

.SHORT TERM...THIS EVENING THROUGH FRIDAY NIGHT
ISSUED AT 255 PM MDT THU JUN 27 2013

CURRENT SURFACE ANALYSIS SHOWS A NEARLY STATIONARY FRONTAL
BOUNDARY OVER THE CENTRAL PLAINS INTO THE ROCKIES...SEPARATING THE
WARM AIR OVER OUR REGION FROM THE VERY HOT AIRMASS IN PLACE OVER
THE SOUTHERN PLAINS AND SOUTHWESTERN CONUS. UPPER LEVEL ANALYSIS
HAS HIGH PRESSURE CENTERED OVER THE FOUR CORNERS AREA...WITH RIDGE
GRADUALLY BUILDING NORTHWARD ACROSS THE ROCKIES AND INTERMOUNTAIN
WEST. SKIES ARE MAINLY SUNNY ACROSS OUR AREA WITH TEMPERATURES
GENERALLY IN THE 80S TO AROUND 90 DEGREES... WARMEST TO THE EAST
OF THE BLACK HILLS. WIND ARE MOSTLY LIGHT AND VARIABLE ACROSS THE
AREA...EXCEPT FOR OCCASIONALLY BREEZY NORTHWESTERLY WINDS ACROSS
FAR NORTHWESTERN SD.

A DRY AND WARM WEATHER PATTERN WILL CONTINUE ACROSS THE AREA THROUGH 
FRIDAY...WITH A BIT OF A COOLDOWN FOR THE WEEKEND...AS THE RIDGE 
BUILDS A BIT FURTHER WEST ACROSS THE WESTERN STATES AND A LONGWAVE 
TROF DIGS FURTHER SOUTH AND WEST OVER THE UPPER MIDWEST AND GREAT 
LAKES REGION. SKIES WILL REMAIN MOSTLY CLEAR TONIGHT WITH LOWS IN 
THE 50S AND LOWER 60S. WINDS WILL BE LIGHT FROM THE NORTH TO 
NORTHWEST. HIGHS ON FRIDAY WILL BE IN THE 80S TO AROUND 90 DEGREES 
WITH NORTHERLY WINDS STARTING TO BRING SLIGHTLY COOLER AIR INTO 
EASTERN PORTIONS OF THE AREA LATER IN THE DAY. MOSTLY CLEAR 
CONDITIONS SHOULD PERSIST FRIDAY NIGHT WITH LOWS IN THE 50S...SOME 
40S OVER THE HIGHER BLACK HILLS.   

&&

.LONG TERM...SATURDAY THROUGH THURSDAY
ISSUED AT 255 PM MDT THU JUN 27 2013

WESTERN CONUS RIDGE REMAINS IN PLACE THROUGH EARLY NEXT WEEK AS
BROAD UPPER LOW DEVELOPS OVER THE MID-MISSISSIPPI/OHIO VALLEY.
UPPER FLOW OVER THE NORTHERN PLAINS BECOMES NORTH-NORTHWEST...WITH
A SERIES OF EMBEDDED SHORTWAVES. THIS WILL RESULT IN DAILY CHANCE
OF THUNDERSTORMS ALONG WITH A SLIGHT COOLING TREND.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z FRIDAY EVENING)
ISSUED AT 504 PM MDT THU JUN 27 2013

VFR CONDITIONS EXPECTED THROUGH THE PERIOD.

&&

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

$$

SHORT TERM...26
LONG TERM...7
AVIATION...HELGESON