Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
596 FXUS61 KRNK 250706 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 206 AM EST Tue Nov 25 2025 .SYNOPSIS... A low pressure system will bring scattered showers for the region Tuesday through Wednesday morning. A strong cold front moves through to bring frigid and very dry air by Thanksgiving Day. Higher pressure moves in by the weekend and another frontal system arrives by early next week. && .NEAR TERM /THROUGH TONIGHT/... As of 200 AM EST Tuesday... Key Message: 1) Rainy conditions for Tuesday into Wednesday morning. A surface low and its associated mid-level shortwave are currently above Missouri and bringing cloud cover to our region. As it approaches, a warm front will bring a chance of rain for the region. Some rain is possible later this morning but precipitation chances increase into Tuesday afternoon through Wednesday morning. The rain will be scattered but most of the region should receive some precipitation. Based on latest model guidance and the southwesterly direction of the showers, areas along the Blue Ridge, especially in North Carolina and far southwestern Virginia will see the most rain. Rainfall totals for this area ranges between 0.75-1.25." In contrast, the New River Valley may see the least amount of rain between 0.10-0.25." Elsewhere, 0.25-0.50" of rain is forecast with isolated areas receiving higher amounts. Whatever the final rainfall amounts may be, the flood risk is low due to drought conditions. While the system moves through, a disorganized but strong low level jet passes through the region. This will result in some isolated surface wind gusts of up to 25 mph. In addition, this jet will continue to bring in moist and warm air from the south. Dew points will climb into the 50s and even lower 60s by Wednesday morning and high temperatures Tuesday afternoon will be in the 50s and 60s. Confidence in this forecast is average to high. && .SHORT TERM /WEDNESDAY THROUGH FRIDAY NIGHT/... As of 130 AM EST Tuesday... Key Messages: 1) Rain ends Wednesday, but gusty winds will prevail. 2) Turning much colder and dry for Turkey Day. On Wednesday, a negatively-tilted upper level trough will be making its closest approach to the Mid-Atlantic region, and will swing NE into New England by Thursday morning. Upper level troughing remains overhead through Friday. On Wednesday, a cold front crosses the area, and upslope rain is likely for the mountains and perhaps the SE Piedmont as the main system exits the area. Another, mostly dry cold front arrives Wednesday night, ushering in strong gusty winds and reinforcing colder air. Trajectory analysis shows strong unidirectional NW flow coming from NW Canada, the source of the very cold and dry airmass that will filter in through the end of the week. Wind gusts will be mainly in the 25 to 35 mph range Wednesday through Thursday night, but may touch wind advisory criteria briefly for the southern Blue Ridge. Temperatures will be several degrees above normal Wednesday ahead of the front, with strong westerly flow. Temperatures drop into the mid 20s to mid 30s that night. High temperatures Thursday and Friday will range from 15 to 20 degrees below normal, and the lows will be about 8-12 degrees below normal. Lows look coldest Thursday and Friday night, with the mountains in the teens to low 20s, and the Piedmont in the low to mid 20s. Confidence in the above weather scenario is moderate. && .LONG TERM /SATURDAY THROUGH MONDAY/... As of 130 AM EST Tuesday... Key Messages: 1) Cold, with increasing clouds again by Saturday. 2) A brief period of a wintry mix of snow, sleet and/or freezing rain is possible on Saturday night, and again Sunday night. Cold temperatures linger through the weekend, with Saturday morning seeing the coldest temperatures between 15 and 22 degrees areawide. Clouds increase and we remain overcast through Tuesday. While high pressure prevails at the surface through Saturday morning, glancing blows from upper level energy will bring some light precipitation chances to the area. Given antecedent cold temperatures, we may see early and brief instances of snow or freezing rain in the mountains before temperatures warm up Sunday morning, and perhaps again Monday morning early...eventually giving way to rain. Temperatures moderate some during the day Monday into Tuesday, but highs and lows will be a few degrees below normal. Confidence in the long term is moderate. && .AVIATION /07Z TUESDAY THROUGH SATURDAY/... As of 130 AM EST Tuesday... Active weather period for the next twenty four hours for all terminals. A low pressure system will bring scattered showers to the region as well as some wind shear. Conditions currently are VFR at all terminals with quiet winds but cloud cover is expected to increase overnight before the precipitation arrives. There is a chance of some early morning showers, particularly at KLWB, KBCB, and KBLF, but the likelihood of rain increases for all terminals by early Tuesday afternoon. The rain itself will provide some limitations to visibilities, but as the day progresses, cloud ceilings will continue to drop. By Tuesday night, all terminals except KDAN will likely be IFR/LIFR. (KDAN may only degrade to MVFR conditions). There is a chance of some lightning with these showers as well. Lastly, there is a risk of wind shear. Surface winds will vary in strength and direction as the system pushes through, but winds aloft are particularly strong due to a low level jet. Model guidance has recently suggest greater spatial extent of wind shear due to this jet with impacts to most terminals. (KDAN again is the least likely to be impacted by wind shear). Wind shear duration is forecast to be longest at KBCB and KROA but there is enough spread for KLWB, KBLF, and KLYH to have periods of low level wind shear. Confidence in this forecast is average to high. .Extended Aviation Outlook... Sub-VFR conditions are likely to continue into Wednesday morning as residual showers persist. A surface high pressure system follows and brings clear and VFR skies, but a strong change in winds. Wind direction will be northwesterly and gust between 25-40 kts Wednesday through Friday. Winds will calm down by the weekend as the center of the surface high passes by. The airmass that moves in will be considerably colder and drier. Low temperatures will be below freezing for the area for the latter half of the week. Rain chances return by early next week to provide another chance of sub-VFR conditions. && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ SYNOPSIS...CG NEAR TERM...CG SHORT TERM...SH LONG TERM...SH AVIATION...CG