788
FXUS63 KUNR 272333
AFDUNR
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
533 PM MDT MON APR 27 2026
KEY MESSAGES
- ANOTHER ROUND OF LIGHT RAIN AND SNOW MOVES IN FROM THE
SOUTHWEST LATE TONIGHT. PRECIP LASTS WELL INTO TUESDAY.
- GENERAL NORTHWEST FLOW WILL KEEP UNSETTLED WEATHER IN THE AREA
THROUGH THURSDAY.
- TEMPERATURES WILL GRADUALLY WARM THROUGH THE WEEK.
DISCUSSION
(THIS EVENING THROUGH MONDAY)
ISSUED AT 138 PM MDT MON APR 27 2026
WHILE THE DAY STARTED WITH RAIN AND SNOW AROUND THE AREA, THE
HEAVIER PRECIP HAS MOVED EAST. SO NE WY AND W SD ARE LOOKING AT
DRIER WEATHER AND CLEARING SKIES. THIS WON'T LAST LONG BECAUSE
ANOTHER ROUND OF PRECIP WILL MOVE INTO THE AREA FROM THE SW LATE
TONIGHT AND LAST INTO TOMORROW. WITH THE COOLER AIR IN PLACE, RAIN
AND SNOW IS LIKELY TONIGHT, AGAIN, BEFORE THE PRECIP SWITCHES
OVER TO RAIN AS TEMPS WARM TOMORROW. SNOWFALL TOTALS TONIGHT INTO
TOMORROW MORNING WILL BE HIGHEST IN THE HIGHER ELEVATIONS OF THE
BLACK HILLS AT AROUND 1 TO 3 INCHES, ISOLATED HIGHER AMOUNTS
AROUND 4 INCHES CAN'T BE RULED OUT.
AS FAR AS THE REST OF THE WEEK GOES, IT'S NOT LOOKING TOO BAD. AN
OVERALL NORTHWEST FLOW IN THE UPPER LEVELS WILL KEEP SOME LOW-END
POPS IN THE FORECAST THROUGH THE NEXT SEVERAL DAYS. THE EXCEPTION
IS A RIDGE OF HIGH PRESSURE LATER THIS WEEK WOULD GIVE CLEAR AND
SUNNY SKIES THURSDAY NIGHT THROUGH FRIDAY NIGHT. THERE IS EVEN AN
ARGUMENT FOR DRY AND SUNNY SKIES ON SATURDAY BUT THERE IS A SLIGHT
CHANCE FOR SHOWERS OVER THE BLACK HILLS SATURDAY AFTERNOON.
BEGINNING SUNDAY, THE NW FLOW RETURNS, BRINGING BACK THE LOW-END
POPS.
THE EFI TABLES ARE NOT HIGHLIGHTING HIGHLY ELEVATED WINDS THIS
WEEK. THAT BEING SAID, WEDNESDAY IS LOOKING LIKE THE NEXT DAY
WHERE THE WINDS COULD BE HIGHER. WINDS AROUND THE AREA TONIGHT
THROUGH TOMORROW NIGHT WILL BE AROUND 5 TO 10 MPH, NOT TOO BAD.
WEDNESDAY IS WHEN THE AREA WILL SEE A CHANGE FROM THESE LIGHTER
WINDS. WINDS WILL SWING TO THE NORTHWEST AND PICK UP SPEEDS TO
AROUND 10 TO 20 MPH, GUSTS UPWARDS OF 30 MPH. THURSDAY WILL BE
SIMILAR. WIND SPEEDS LIKE THIS AREN'T BAD FOR WHAT WE ARE USED TO
BUT IT'S A CHANGE FROM WHAT WE'LL EXPERIENCE THROUGH TUESDAY
NIGHT. SO JUST SOMETHING TO KEEP IN MIND, THAT WIND SPEEDS WILL BE
A TOUCH HIGHER WEDNESDAY AND THURSDAY.
TEMPERATURES WILL BE ON THE RISE THIS WEEK AS WELL. OVERNIGHT
LOWS WILL BE STUCK IN THE UPPER 20S TO LOW 30S THROUGH THURSDAY
NIGHT. AFTERNOON HIGHS WILL WARM MUCH MORE QUICKLY. TOMORROW'S
(TUESDAY) HIGHS WILL BE IN THE 40S TO NEAR 50 BUT WEDNESDAY AND
THURSDAY WILL BE MUCH WARMER WITH HIGHS IN THE 50S TO NEAR 60.
FRIDAY, SATURDAY, AND SUNDAY WILL BE WARMER STILL WITH HIGHS IN
THE 60S TO LOW 70S.
AVIATION
(FOR THE 00Z TAFS THROUGH 00Z TUESDAY EVENING)
ISSUED AT 533 PM MDT MON APR 27 2026
MVFR CONDITIONS WILL CONTINUE TONIGHT INTO TUESDAY, THOUGH A FEW
AREAS MAY DROP TO IFR WITH PATCHY FOG. IFR CONDITIONS ACROSS THE
BLACK HILLS AREA ARE ALSO EXPECTED OVERNIGHT. THE NEXT SYSTEM
WILL BRING RAIN TO THE WESTERN SD PLAINS (SNOW ACROSS THE BLACK
HILLS AREA) TUESDAY MORNING INTO THE AFTERNOON, THEN WILL EXIT
FROM WEST TO EAST. THIS WILL BRING ADDITIONAL MVFR/IFR CONDITIONS,
BUT THEN IMPROVEMENTS TO VFR ARE EXPECTED BEHIND THE SYSTEM.
UNR WATCHES/WARNINGS/ADVISORIES
SD...NONE.
WY...NONE.
DISCUSSION/KEY MESSAGES...GS
AVIATION...13
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