Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
978 FXUS61 KRNK 142356 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 756 PM EDT Tue Jul 14 2026 .WHAT HAS CHANGED... Updated the forecast given recent guidance. Added some river valley fog into the weather grids tonight to account recent CAM guidance, and favorable pattern. && .KEY MESSAGES... 1) Significant heat returns Wednesday through the weekend, however we look to stay below heat advisory or warning criteria. 2) Scattered daily afternoon and evening showers and thunderstorms return for Friday into the weekend. && .DISCUSSION... KEY MESSAGE 1...Significant heat returns Wednesday through the weekend, however we look to stay below heat advisory or warning criteria. Large scale upper ridge of high pressure builds into the area from the NW today. This will push the enhanced moisture axis south of the area and the switch to a dry subsident airmass will allow for mostly clear conditions through Thursday. Some suspended smoke further north could makes its way into the area by tomorrow which could result in some haze. Temps will moderate warmer going into midweek with Wednesday through Friday having the highest max temps of the forecast period. The temps combined with some increased dewpoints could result in heat indices near the low 100s for parts of the Piedmont during this period and possibly near the 105 deg advisory level in the east on Thursday. Please monitor future updates to the forecast. KEY MESSAGE 2...Scattered daily afternoon and evening showers and thunderstorms return for Friday into the weekend. The aforementioned ridge dampens and breaks down by Friday allowing for a return of moisture advecting in from the west and increased chances for diurnally driven convection. Coverage of showers and storms should increase for Saturday as an amplified shortwave trough digs into the area. On the heels of this feature, a frontal boundary is progged to track SEWD for Sunday and again allow for increased coverage of convection. While still pretty far out to properly assess severe potential, for now shear parameters are not impressive though low level lapse rates could be quite high so some stronger convection could have enhanced downdraft winds each day. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... VFR conditions look to prevail at all terminals except LWB and possibly BCB where some river valley fog early in the morning may lead to some VSBY and CIG restrictions in the MVFR to LIFR levels. After looking at at model soundings for tomorrow (Wednesday), it appears that there is too much dry air through the column to have much of a scattered cu field; however, a few clouds at 5-6 thousand feet can`t be ruled out. Overall, skies will remain predominantly clear across all terminals after any river valley fog lifts. Winds will predominantly remain light at around 5 mph across all terminals. Wind directions look to remain out of the west/northwest through much of the TAF period. Some smoke from wildfires out west may move over the area tomorrow; however, this smoke would likely be aloft, and would not affect terminals at the ground level. EXTENDED AVIATION OUTLOOK... Diurnal showers and thunderstorms are expected to return Friday through Monday, bringing some gusty winds and heavy rainfall as well as periods of MVFR or lower conditions. Mountain valley fog/low stratus will also be possible each morning. Winds will be variable in direction Wednesday through Friday. A west wind with speeds between 6 and 12 kts develops Saturday and Sunday, with gusts to 20 kts or so. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ DISCUSSION...AB AVIATION...AB/EB