648
FXUS63 KUNR 201942
AFDUNR
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
1242 PM MST THU FEB 20 2025
KEY MESSAGES
- MUCH WARMER TEMPERATURES HEADING THROUGH THE WEEKEND.
- A BIT UNSETTLED EARLY TO MID NEXT WEEK, WITH TEMPERATURES MOSTLY
ABOVE AVERAGE.
DISCUSSION
(THIS EVENING THROUGH THURSDAY)
ISSUED AT 1220 PM MST THU FEB 20 2025
WATER VAPOR SHOWS UPPER TROF AXIS FROM THE UPPER MIDWEST THROUGH
THE CENTRAL ROCKIES, WITH UPPER RIDGE OVER THE NORTHERN ROCKIES.
AT THE SURFACE, RIDGE IS OVER THE FAR EASTERN DAKOTAS, WITH
STAUNCH PRESSURE FALLS WESTWARD TO THE ROCKY MOUNTAIN FRONT.
TEMPERATURES HAVE WARMED INTO THE 30S AT HIGHER ELEVATIONS OF THE
BLACK HILLS, WITH TEMPS MODERATING ON THE PLAINS.
MUCH WARMER TEMPERATURES CAN BE EXPECTED THROUGH THE WEEKEND WITH
GENERALLY FLAT UPPER RIDGE BUILDING OVERHEAD AND ARCTIC AIR
CONTINUING TO SHALLOW/ERODE. MANY AREAS SHOULD REACH OR EXCEED
FREEZING FRIDAY, AND CONTINUE TO WARM OVER THE WEEKEND. 60S WILL
BE POSSIBLE BY SUNDAY EAST/SOUTH OF THE BLACK HILLS AS WESTERLY
DOWNSLOPE FLOW BECOMES A BIT GUSTY WITH THERMAL RIDGE OVERHEAD.
SNOW COVER MAY KEEP TEMPS FROM REACHING THEIR FULL POTENTIAL IN
SOME AREAS THE NEXT FEW DAYS.
WEST/NORTHWEST FLOW ALOFT BECOMES MORE DISTURBED EARLY NEXT WEEK,
WITH SOME OPPORTUNITIES FOR PRECIP AT TIMES, BUT MOISTURE LOOKS
LIMITED. TEMPS WILL COOL A BIT BUT STILL REMAIN ABOVE AVERAGE
THROUGH AT LEAST EARLY NEXT WEEK.
AVIATION
(FOR THE 18Z TAFS THROUGH 18Z FRIDAY)
ISSUED AT 1009 AM MST THU FEB 20 2025
VFR CONDITIONS WILL CONTINUE THROUGH THE PERIOD.
UNR WATCHES/WARNINGS/ADVISORIES
SD...NONE.
WY...NONE.
DISCUSSION/KEY MESSAGES...JOHNSON
AVIATION...JOHNSON
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