National Weather Service Text Product
AFOS product AFDUNR
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: AFDUNR
Product Timestamp: 2015-01-11 09:51 UTC
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614 FXUS63 KUNR 110951 AFDUNR AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY NATIONAL WEATHER SERVICE RAPID CITY SD 251 AM MST SUN JAN 11 2015 .SHORT TERM...TODAY THROUGH MONDAY NIGHT ISSUED AT 238 AM MST SUN JAN 11 2015 LATEST SURFACE ANALYSIS SHOWS HIGH PRESSURE OVER THE CANADIAN PRAIRIE PROVINCES SLIPPING SOUTHWARD INTO MONTANA AND NORTH DAKOTA. THE COLD HIGH PRESSURE AREA WILL CONTINUE TO MOVE SOUTHWARD INTO THE FORECAST AREA TODAY AND TONIGHT AS A COUPLE OF WEEK SHORTWAVES AFFECT THE AREA. WEAK LIFT ALONG THE LOW LEVEL BAROCLINIC ZONE TO THE WEST OF THE SFC HIGH WILL CREATE SOME LIGHT SNOW TODAY AND TONIGHT...MAINLY OVER NORTHEASTERN WYOMING AND FAR WESTERN SOUTH DAKOTA. SNOW ACCUMULATION OF AN INCH OR LESS IS EXPECTED. LIGHT SNOW MAY LINGER OVER PARTS OF NORTHEASTERN WYOMING AND FAR SOUTHWESTERN SOUTH DAKOTA INTO EARLY MONDAY MORNING...WITH DECREASING CLOUDS EXPECTED BY MONDAY AFTN. HIGHS ON MONDAY WILL RANGE FROM 5-10 DEGREES F OVER CENTRAL SOUTH DAKOTA TO THE LOWER 20S OVER NORTHEASTERN WYOMING AND THE BLACK HILLS. .LONG TERM...TUESDAY THROUGH SATURDAY ISSUED AT 238 AM MST SUN JAN 11 2015 DRIER WEATHER AND A WARMING TREND ARE IN STORE FOR THIS WEEK AS UPPER RIDGING DEVELOPS ACROSS THE WESTERN CONUS. AN UPPER WAVE WILL CROSS THE REGION TUESDAY...BUT LACK OF MOISTURE WILL KEEP THE WEATHER DRY. MODELS ARE NOW HINTING AT A WAVE OR TWO MOVING THROUGH THE NORTHERN PLAINS THURSDAY INTO FRIDAY...POSSIBLY BRINGING SOME PRECIPITATION. SINCE THIS IS A NEW FEATURE AND THERE ARE TIMING/INTENSITY DISAGREEMENTS...WILL KEEP FORECAST DRY FOR NOW. IT DOES APPEAR THAT THE RIDGE BREAKS DOWN TOWARD THE END OF THE WEEK AND FLOW BECOMES MORE ZONAL. WESTERLY FLOW WILL AID IN ABOVE NORMAL TEMPERATURES FOR THE END OF THE WEEK INTO NEXT WEEKEND. && .AVIATION...FOR THE 12Z TAFS THROUGH 12Z MONDAY MORNING ISSUED AT 238 AM MST SUN JAN 11 2015 MVFR CIGS WILL DEVELOP TODAY ACROSS NORTHEAST WYOMING AND FAR WESTERN SOUTH DAKOTA AS LIGHT SNOW BEGINS TO FALL. SOME IFR CIGS AND MVFR VSBYS WILL ALSO BE POSSIBLE...ESPECIALLY ACROSS NORTHEAST WYOMING AND THE BLACK HILLS AREA. && .UNR WATCHES/WARNINGS/ADVISORIES... SD...NONE. WY...NONE. && $$ SHORT TERM...10 LONG TERM...POJORLIE AVIATION...POJORLIE