Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
677 FXUS61 KRNK 230001 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 701 PM EST Sat Nov 22 2025 .SYNOPSIS... High pressure will allow for dry conditions through Monday. Another larger system moves through the area during the middle of next week, with a big cooldown expected for Thanksgiving and beyond. && .NEAR TERM /THROUGH SUNDAY/... As of 640 PM EST Saturday... Some fog east of the Blue Ridge was added into the weather grids this evening as several CAM models have good agreement in areas of fog developing tonight and towards the early morning hours. This fog should lift/disperse by the mid morning hours as heating and winds both pick up across the area. Outside of these small adjustments, no other changes were made. Depending on how thick the fog develops overnight, additional products such as a Dense Fog Advisory may be needed. Previous Discussion: Key Message: Drier airmass returns to the area for the rest of the weekend. Main disturbance and sfc cold front has quickly exited the CWA to the east and associated shower coverage has diminished greatly. Typical cold advection stratocu remains in the wake of the system and should have lingering cloud coverage through tonight for much of the area. Strong mixing and subsidence should occur during the daytime Sunday that will quickly scatter any clouds with increased westerly winds. Even though we will be in the cooler post frontal regime with decent ridging, afternoon temps Sunday should remain above climo norms and values should mainly be in the mid 60s for the Piedmont and mid to upper 50s for the mountains. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/... As of 1200 PM EST Saturday... Key Messages: 1) High pressure will support dry conditions through Monday night. 2) Low pressure will arrive for Tuesday and Tuesday night, resulting in periods of rain and possible thunderstorms for the Piedmont. The passage of high pressure overhead from Sunday night through Monday night will bring dry weather to the lower Mid-Atlantic under mostly clear skies and wind speeds generally under 10 mph from the west. Attention then turns to the arrival of a warm front on Tuesday that will bring periods of light rain into Tuesday night, when an associated cold front will approach the Appalachian chain from the west. There are signs in the latest round of weather data that suggest a few thunderstorms will develop across the Piedmont Tuesday night as an upper level disturbance passes overhead. Uncertainty remains in rainfall amounts, however there are signals that rainfall associated with the storms across the Piedmont could be locally heavy at times. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... As of 1200 PM EST Saturday... Key Messages: 1) A cold front will pass across the lower Mid-Atlantic on Wednesday. 2) Temperatures will transition to between 8 to 12 degrees below normal for Thursday and Friday. Looking to Wednesday, widely scattered showers will persist through the day before a cold front makes its way across the lower Mid- Atlantic during the afternoon and evening. This front will usher in cooler and drier Canadian high pressure that will control our weather pattern through the remainder of the workweek. Skies will become mostly clear with the arrival of high pressure, with west- northwesterly windflow that could be breezy at times. While temperatures will remain mild on Wednesday until the cold front arrives, they will then transition to between 8 to 12 degrees below normal for Thursday and Friday. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... As of 630 PM EST Saturday... MVFR CIGs are continuing to be observed at BLF and LWB this evening, and are expected to remain through most of the overnight hours, before returning to VFR conditions by the early morning hours for all terminals. Some patchy fog can`t be ruled out for LYH and DAN during the overnight hours, which may lead to some MVFR to IFR VSBYs; however, confidence is not high enough to include in any TAF line at this time, but may be added at later amendments. Winds overnight look to relax to variable levels for terminals east of the Blue Ridge, with mountain terminal winds likely staying elevated at around 5 knots through the overnight period out of the west/northwest. By Sunday afternoon, wind gusts look to increase to around 20-25 knots at all terminals, but should slowly diminish through the evening hours. .Extended Aviation Outlook... The next system arrives Tue-Wed with rain chances and sub- VFR conditions. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ SYNOPSIS...BMG/WP NEAR TERM...AB/EB SHORT TERM...CG LONG TERM...CG AVIATION...AB/EB