601
FXUS61 KRNK 200629
AFDRNK
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BLACKSBURG VA
229 AM EDT TUE OCT 20 2026
WHAT HAS CHANGED
LOWERED DEWPOINTS TUESDAY AND WEDNESDAY. DEEPER MIXING OF DRY
AIR ALOFT TO THE SURFACE IS RESULTING IN LOW HUMIDITY.
TEMPERATURES FOR OVERNIGHT LOWS WERE ALSO LOWERED TO ACCOUNT FOR
CLEAR SKIES AND CALM WINDS AT NIGHT, WHICH WILL ALLOW FOR
EXTREMELY EFFICIENT RADIATIONAL COOLING.
KEY MESSAGES
1) DRY AND SEASONABLE THROUGH EARLY NEXT WEEK.
DISCUSSION
KEY MESSAGE 1:
DRY AND SEASONABLE INTO EARLY NEXT WEEK.
THE REGION IS EXPECTED TO REMAIN UNDER THE INFLUENCE OF SURFACE
HIGH PRESSURE LIKELY THROUGH THE END OF THE WEEKEND, AND EARLY
NEXT WEEK. WITH HIGH PRESSURE AND MOSTLY CLEAR SKIES OVER THE
REGION THROUGH THE NEXT WEEK, TEMPERATURES LOOK TO MODERATE TO
MORE SEASONABLE VALUES IN THE 60S AND 70S FOR HIGHS EACH DAY,
AND 30S/40S FOR LOWS AT NIGHT.
WIDESPREAD MEASURABLE RAINFALL IS NOT EXPECTED THROUGH THE END
OF THE MONTH.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
VFR CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD, WITH
NORTH/NORTHEAST WINDS BETWEEN 5-10 KNOTS. SOME GUSTS OF 10-15
KNOTS WITH AN OCCASIONAL GUST UP TO 20 KNOTS WILL BE POSSIBLE AT
LYH AND DAN TODAY DURING THE 18-00 UTC TIMEFRAME. WITH A DRY
AIRMASS IN PLACE, FOG FORMATION AT NIGHT WILL BE DIFFICULT
EXCEPT FOR RIGHT ALONG RIVER VALLEYS. GIVEN THIS UNCERTAINTY IN
FOG FORMATION, RESTRICTIONS HAVE BEEN LEFT OUT OF LWB TAFS FOR
THE TIME BEING.
OUTLOOK...
VFR THROUGH THE WEEK. RIVER VALLEY FOG MAY OCCUR; HOWEVER, WITH
DRY AIR OVER THE REGION, CONFIDENCE IS LOW IN ITS FORMATION, AND
OVERALL IMPACT TO TERMINALS SUCH AS LWB AND BCB.
RNK WATCHES/WARNINGS/ADVISORIES
VA...NONE.
NC...NONE.
WV...NONE.
DISCUSSION...EB
AVIATION...EB
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