807
FXUS61 KRNK 172345
AFDRNK
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
745 PM EDT SAT OCT 17 2026
WHAT HAS CHANGED
UPDATED AVIATION DISCUSSION.
KEY MESSAGES
1) FROST IN THE MOUNTAINS TOMORROW MORNING.
DISCUSSION
KEY MESSAGE 1...
FROST IN THE MOUNTAINS TOMORROW MORNING.
IN THE WAKE OF A DEPARTING COLD FRONT, A COOLER AND DRIER AIRMASS
WILL SETTLE OVER THE REGION. NORTHWESTERLY FLOW ALOFT ON THE
BACKSIDE OF THE 500MB TROUGH WILL ALLOW FOR MUCH COOLER AIR TO
CONTINUE TO FLOW INTO THE REGION. GUSTY NORTH TO NORTHWESTERLY
WINDS WILL CONTINUE INTO THE EVENING, BETWEEN 15 TO 25 MPH FOR
MOST, AND UP TO 35 MPH ALONG THE HIGHER RIDGE LINES. WINDS
ALONG THE BLUE RIDGE AND THE PIEDMONT MAY STAY SLIGHTLY BREEZY
INTO THE EARLY MORNING HOURS OF SUNDAY, WHICH COULD KEEP THE
ATMOSPHERE MIXED WELL ENOUGH TO KEEP TEMPERATURES A FEW DEGREES
WARMER THAN THE MORE SHELTERED MOUNTAIN VALLEYS IN THE WEST.
WITH CLEAR SKIES OVERHEAD, TEMPERATURES ARE EXPECTED TO FALL
INTO THE UPPER 20S TO LOW 30S IN THE MOUNTAINS, AND MID TO UPPER
30S IN THE PIEDMONT. A FREEZE WARNING AND FROST ADVISORY REMAIN
IN EFFECT FOR THE MOUNTAIN COUNTIES FROM LATE TONIGHT THROUGH
SUNDAY MORNING. EFFORTS SHOULD BE MADE TODAY TO PROTECT
SENSITIVE VEGETATION BY COVERING IT OR MOVING IT INDOORS. SUNDAY
NIGHT INTO MONDAY MORNING WILL BE COLD AS WELL, SO STILL PLAN
TO KEEP VEGETATION COVERED OR INSIDE FOR ANOTHER NIGHT, AND TO
WEAR A HEAVIER COAT OR AN EXTRA LAYER OR TWO WHILE WAITING AT
THE BUS STOP.
SURFACE HIGH PRESSURE WILL KEEP THE WEATHER DRY FOR THE NEXT
WORKWEEK, WITH BROAD 500MB TROUGHING REMAINING OVER THE EASTERN
THIRD OF THE US THROUGH THE END OF THE WEEK. AFTER MONDAY,
TEMPERATURES START TO MODERATE TOWARDS NORMAL, WHICH MEANS HIGHS IN
THE 60S AND 70S, AND LOWS IN THE 30S AND 40S.
AVIATION /00Z SUNDAY THROUGH THURSDAY/
THE BIGGEST AVIATION IMPACT OVER THE NEXT 24 HOURS IS EXPECTED
TO COME FROM WINDS. EVEN THOUGH WIND SPEEDS ARE EXPECTED TO
(RATHER QUICKLY) BECOME CALM, A FEW LOCATIONS MAY CONTINUE TO
SEE NW WINDS AROUND 10 KTS. THROUGH MID-EVENING. AFTER SUNRISE,
WINDS SHOULD VEER TO THE NE AND INCREASE TO 5-10 KNOTS AT MOST
PLACES, WITH SOME HIGHER GUSTS SEEN ESPECIALLY E OF THE BLUE
RIDGE.
OTHERWISE, FLIGHT CATEGORIES SHOULD REMAIN VFR THROUGH 18/2400
UTC, WITH SKIES EXPECTED TO REMAIN CLR THROUGH THE 18/0000 UTC
TAF PERIOD.
OUTLOOK SUNDAY NIGHT THROUGH THURSDAY...
SUNDAY NIGHT-THURSDAY: NO SIGNIFICANT RESTRICTIONS ANTICIPATED.
DRY WEATHER AND VFR CONDITIONS ARE EXPECTED THROUGH THE PERIOD.
RNK WATCHES/WARNINGS/ADVISORIES
VA...FREEZE WARNING FROM 1 AM TO 9 AM EDT SUNDAY FOR VAZ007-009>020.
FROST ADVISORY FROM 1 AM TO 9 AM EDT SUNDAY FOR VAZ022>024-
032>035.
NC...FREEZE WARNING FROM 1 AM TO 9 AM EDT SUNDAY FOR NCZ001-002-018.
FROST ADVISORY FROM 1 AM TO 9 AM EDT SUNDAY FOR NCZ003-019.
WV...FREEZE WARNING FROM 1 AM TO 9 AM EDT SUNDAY FOR WVZ042>044-507-
508.
DISCUSSION...AS
AVIATION...DB
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