


Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
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220 FXUS61 KRNK 212338 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 738 PM EDT Mon Jul 21 2025 .SYNOPSIS... A much cooler and drier airmass will enter the region tonight thanks to a surface high pressure settling into the Northeast. This will lead to several days without rain chances for most of the area through the end of the work week before a moist airmass out of the southeast surges back into the Mid-Atlantic states on Saturday and Sunday. && .NEAR TERM /THROUGH TUESDAY/... As of 730 PM EDT Monday... Key Message: 1) Isolated shower and thunderstorms along the southern Blue Ridge on Tuesday. The rest of the region will remain cooler and drier with mostly cloudy conditions. Just a few pockets of showers out there this evening, mainly along a boundary from southeast KY into northwest NC. Rainfall rates are not quite as high as the past few nights as convection is not as strong. Still some training of showers over Smyth county and portions of western Tazewell may cause some low lying flooding. High-res models keep widely scattered showers around into this evening, one area along/south of the VA/NC border and another across the central Piedmont. Any thunder should be limited. Previous discussion... The backdoor front that is pushing through the region today will be south of the area on Tuesday, and will predominantly be draped across Georgia and South Carolina. In the wake of this front, a much cooler and drier airmass will wedge its way into the region. This will keep rain chances out of most of the area, with the exception of those in NW North Carolina and the southern Blue Ridge in Virginia, where easterly/northeasterly flow will cause some upslope showers and thunderstorms to develop. This activity will predominantly remain isolated in nature, with only minor impacts possible given antecedent conditions over the last week or so. Outside of isolated showers and thunderstorms across the southern Blue Ridge, the area will remain cooler and drier, with mostly cloudy skies early giving way to partly cloudy skies by the afternoon and evening. Temperatures will generally climb into the low to mid 80s across the region. && .SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/... As of 1230 PM EDT Monday... Key Message: 1. Warming trend begins Wednesday 2. Dry weather through Thursday. High pressure wedges south over the area Tuesday night into Wednesday night. Residual low level moisture and an easterly fetch off the Atlantic will likely keep a low stratus deck in the area. Some breaks in the clouds may occur in the afternoon Wednesday, but will fill back in overnight. These clouds along with an easterly flow will help keep Wednesday`s high temperatures in the upper 70s to lower 80s across the mountains and low to mid 80s in the foothills and Piedmont. These temperatures are 3F cooler than normal. The surface wedge will break Thursday as high pressure aloft tracks over the region. Temperatures will moderate into the 80s west of the Blue Ridge to the upper 80s to lower 90s east. A stray shower may pop-up over the mountains late in the afternoon, but will fade through the evening. && .LONG TERM /FRIDAY THROUGH MONDAY/... As of 1245 PM EDT Monday... Key Messages: 1. Above normal temperatures and humidity returns to the area. 2. Chances for showers and thunderstorms increase into the weekend. An upper level ridge will move overhead Friday then wobbles along the southeast coast over the weekend. This ridge will bring heat and humidity back into the region along with daily chances of afternoon and evening showers and thunderstorms starting Friday. Over next weekend into early next week, waves tracking around this ridge will bring a higher chance and areal coverage of storms. Convection is expected to start over the mountains in the afternoon, then drift east into the foothills and piedmont in the evening. If this upper level ridge breaks down or travels southward, a cold front may move across the region Tuesday or Wednesday of next week. Temperatures will run 5F to 10F warmer than normal through the period. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... As of 730 PM EDT Monday... VFR conditions are expected for most of the taf period, but some showers may skirt by LYH between 00z-01z, possibly DAN. Lower cigs appear possible later tonight as flow turns easterly. Most sites look to drop to MVFR possibly IFR with fog as well. These restrictions should lift by the 13-14 UTC timeframe on Tuesday as dry air continues to make its way into the area as high pressure continues to wedge itself down the southeast. Some isolated storms will be possible for BLF on Tuesday; however, chances remain low and will likely remain south of BLF/BCB into the NC mountains. OUTLOOK... Anticipate VFR Wed - Fri outside any late night fog with the frontal boundary mainly south of the region into Georgia and South Carolina. Sub-VFR conditions look to return by the weekend as chances for shower and thunderstorm activity increases once again. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ SYNOPSIS...EB NEAR TERM...EB/WP SHORT TERM...RCS LONG TERM...RCS AVIATION...BMG/EB/WP