Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
811 FXUS61 KRNK 301759 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 159 PM EDT Sun Aug 30 2026 .WHAT HAS CHANGED... Heat will begin to build on Monday, with the hottest temperatures expected by Wednesday and Thursday. Cooler weather will arrive again by the weekend, along with increasing chances of rain. Aviation updated. && .KEY MESSAGES... 1) High confidence in impactful heat this week. && .DISCUSSION... KEY MESSAGE 1: Heat builds this week. High confidence in above normal temperatures. A strong upper ridge will begin to strengthen over the southern United States by Monday. This ridge will continue to build east through the week, leading to multiple days of upper 80s to upper 90s over the region. The heat should peak Wednesday, but remains quite high Thursday as well, especially over the Piedmont. Temperatures in the upper 80s and upper 90s combined with dew points in the mid to upper 60s will result in heat indices in the lower 100s for parts of the Piedmont as well as the Roanoke urban area during this period. Through Wednesday, and possibly Thursday, rain looks scarce, with a few tiny cells trying to develop in the afternoons and early evenings. Best chance of storms will be along the southern Blue Ridge, but strong subsidence under the ridge will prevent anything more than shallow convection. Troughing over the northeast by Friday will amplify resulting in a greater chance for rain/storms for the weekend as the strong ridging moves west over the Rockies. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... Widespread VFR expected, along with light/calm winds through this evening and generally overnight as well. Some low stratus and fog may develop again overnight, particularly for the mountain valleys... mainly impacting LWB/BCB. Expecting light winds and VFR again on Monday after any fog/stratus dissipates. EXTENDED AVIATION OUTLOOK... High pressure will build across the Appalachian Mountains on Monday to bring drier weather and mainly VFR conditions through at least Wednesday, outside of morning fog for the mountain terminals. A few showers and storms may develop Thursday afternoon and evening. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ DISCUSSION...BMG/SH AVIATION...BMG/SH