707
FXUS63 KUNR 272313
AFDUNR
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
513 PM MDT TUE OCT 27 2026
KEY MESSAGES
-MILD, MAINLY DRY, AND BREEZY AT TIMES THROUGH THE REST OF THE
WEEK
DISCUSSION
(THIS AFTERNOON THROUGH MONDAY)
ISSUED AT 1036 AM MDT TUE OCT 27 2026
MEAN UPPER TROUGHING OVER THE PAC NW AND WESTERN CANADA WILL
SUPPORT GENERAL SW FLOW THROUGH THE REMAINDER WEEK WITH WEAK
IMPULSES TRAVERSING THE FLOW. EXPECT MAINLY DRY WEATHER WEATHER AS
THESE SYSTEMS FIGHT VERY DRY LOW LEVELS, ALTHOUGH A FEW SPRINKLES
MAY BE POSSIBLE AS EACH WEAK SHORTWAVE TRAVERSES THE REGION. DRY
AIR SPREADING INTO THE REGION TODAY, SCOURING OUT LOW LEVEL CLOUDS
AND FOG. EXPECT BREEZY WINDS WITH HIGHS IN THE 50S AND 60S. WEAK
IMPULSE WILL TRAVERSE THE REGION TONIGHT AND MAY SUPPORT ISOLATED
RAIN OR SNOW SHOWERS FROM NORTHEAST WY INTO NW SD. MOSTLY VIRGA
EXPECTED, BUT A COUPLE SHOWERS MAY REACH THE GROUND. OTHERWISE,
FOR THE REST OF THE WEEK HIGHS WILL GENERALLY BE IN THE 60S, WITH
HIGH TEMP POTENTIALS DEPENDING ON THE TIMING OF THE THERMAL RIDGES
AHEAD EACH SYSTEM. THIS COULD ALLOW SLIGHTLY WARMER OR COOLER
NUMBERS THAN WHAT THE CURRENT FORECAST HAS. UPPER TROUGH WILL LIFT
OUT THE PAC NW EARLY NEXT WEEK, WITH UNSETTLED LOOKING MORE
LIKELY COUPLED BETTER CHANCES FOR PRECIP.
AVIATION
(FOR THE 00Z TAFS THROUGH 00Z WEDNESDAY EVENING)
ISSUED AT 510 PM MDT TUE OCT 27 2026
SCATTERED SHOWERS ARE POSSIBLE ACROSS NORTHEAST WYOMING, THE
BLACK HILLS, AND NORTHWESTERN SOUTH DAKOTA STARTING AROUND 28/05Z
AND LASTING THROUGH 28/15Z. ISOLATED MVFR CONDITIONS ARE POSSIBLE IN
THE HEAVIEST PRECIP. PATCHY FOG, LEADING TO MVFR/IFR CONDITIONS,
MAY REDEVELOP OVER PORTIONS OF THE SOUTH DAKOTA PLAINS THIS
EVENING INTO THE OVERNIGHT HOURS BEFORE SLOWLY BURNING OFF BY
28/18Z.
OUTSIDE OF ANY SHOWERS AND PATCHY FOG, VFR CONDITIONS ARE EXPECTED
THROUGH THE TAF PERIOD.
UNR WATCHES/WARNINGS/ADVISORIES
SD...NONE.
WY...NONE.
DISCUSSION...JC
AVIATION...SCHULTZ
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page