528
FXUS63 KUNR 281116
AFDUNR
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
516 AM MDT WED MAY 28 2025
KEY MESSAGES
-CONTINUED COOL TODAY WITH MAINLY MORNING SHOWERS AND ISOLATED
STORMS
-WARMER AND DRY FOR THE REST OF THE WEEK, WITH HIGHS IN THE 80S
BY THIS WEEKEND, WARMEST SUNDAY
-COOLER AND UNSETTLED NEXT WEEK
DISCUSSION
(TODAY THROUGH TUESDAY)
ISSUED AT 1245 AM MDT WED MAY 28 2025
STALLED CLOSED LOW WILL FINALLY SHIFT EAST OUT OF THE REGION AS A
NW FLOW IMPULSE TRAVERSES THE REGION THIS MORNING. UPPER RIDGE
WILL SHIFT EAST THE NEXT FEW DAYS WITH WARMER AND DRY WEATHER
THROUGH THE WEEKEND. COMPACT BUT FAIRLY POTENT UPPER IMPULSE WILL
TRAVERSE THE REGION THIS MORNING SUPPORTING SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS. THE BEST CHANCES FOR PRECIP WILL BE ACROSS
THE SOUTHWEST THIRD OF THE FA THIS MORNING, WITH THINGS DRYING
OUT THIS AFTERNOON NORTH TO SOUTH. SOME FOG WILL ALSO BE POSSIBLE
THIS MORNING, MAINLY ACROSS THE EASTERN SLOPES OF THE BH. THINGS
WILL DRY OUT TONIGHT AS HIGH PRESSURE BUILDS INTO THE REGION. A
SLOW WARMING TREND WILL ENSUE AND CONTINUE THROUGH THE REMAINDER
OF THE WEEK, WITH SUNDAY EXPECTED TO THE WARMEST DAY IN THE PERIOD
AHEAD OF THE NEXT SYSTEM. ANOTHER TROUGH OF LOW PRESSURE WILL
MOVE INTO THE REGION EARLY NEXT WEEK, SUPPORTING CHANCES FOR MORE
SHOWERS AND STORMS STARTING SUNDAY NIGHT, AS WELL AS COOLER TEMPS
AS UNSETTLED FLOW RETURNS.
AVIATION
(FOR THE 12Z TAFS THROUGH 12Z THURSDAY MORNING)
ISSUED AT 513 AM MDT WED MAY 28 2025
CONDITIONS WILL DETERIORATE TO MVFR/IFR/LIFR OVER THE BLACK
HILLS, FOOTHILLS, AND ADJACENT PLAINS THIS MORNING AS LOW STRATUS
AND BR/FG DEVELOP DUE TO EASTERLY UPSLOPE FLOW. FOG AND LOW
STRATUS MAY PERSIST THRU 18Z BEFORE GRADUAL IMPROVEMENT TO VFR
FROM NORTH TO SOUTH. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS
WILL ALSO BE POSSIBLE ACROSS SOUTHWEST AREAS, MAINLY THIS MORNING.
UNR WATCHES/WARNINGS/ADVISORIES
SD...NONE.
WY...NONE.
DISCUSSION/KEY MESSAGES...JC
AVIATION...JC
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