Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
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-- Discussion containing changed information from previous version are highlighted. --542 FXUS61 KRNK 081107 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 607 AM EST Fri Nov 8 2024 .SYNOPSIS... A front moves south into the Carolinas today. High pressure builds in from the north with dry weather into Saturday. A storm system moving in from the southwest will bring shower chances for Sunday into Monday. && .NEAR TERM /THROUGH TONIGHT/... AS OF 155 AM EST Friday... Key Message: 1) Not as Warm Today, But Still Above Normal Temperatures. Overall, models are in agreement in taking the front over southern VA this morning into southern NC by this evening. This morning, fog appears to be a bit patchy and more centered over our NC foothills and northwest Piedmont south toward CLT. Low clouds/fog and patchy drizzle also possible at times back across the western slopes of WV/far SW Va this morning. Anticipate clouds to scatter out as we head toward lunchtime today with sunshine this afternoon. A flow out of the northwest will bring a drier airmass in by later in the afternoon with winds gusting to 20 mph at times. Still airmass is not that cool, so highs again over the Piedmont with downsloping may reach close to 80 again. At the moment, Danville and Lynchburg could approach record highs. Further west temperatures will be cooler but still 10-15 degrees above normal in the mid 60s to lower 70s. Tonight, high pressure situated over the Great Lakes builds south into VA, with low level flow weakening. Cooler air works in with lows in the mid 30s to around 40 in the mountains, with mid 40s in the Piedmont. With clear skies and a lighter wind, could have some fog along rivers/lakes, but given dry ground, fog looks more limited. && .SHORT TERM /SATURDAY THROUGH MONDAY/... As of 300 AM EST Friday... Key Message: 1. Temps cooling for the weekend and next front approaches with increased rain chances for Sunday into early Monday. The weekend kicks off with a dry ridge dominated Saturday with cooler temps back down to near climo norms with many locations reaching highs only in the low 60s. Conditions will change greatly for Sunday as a broad enhanced moisture field advects into the area from the west ahead of an approaching front that is progged to get elongated across the eastern CONUS as an upper closed low tracks off to the Great Lakes and SE Canada. With nearly zero instability widespread rain showers are expected with no thunder mention. PWATs of 1.25-1.4 inches look to be near record or 99th percentile of climo so despite the lack of CAPE some showers could be very efficient rain producers. Storm total QPF has had little change from before with about a half an inch of rain expected in the mountains and near a quarter inch for the Piedmont. && .LONG TERM /MONDAY NIGHT THROUGH THURSDAY/... As of 330 AM EST Friday... Key Messages: 1) Dry for much of the week, then possible cold front Thursday. A weak shortwave on the heels of the aforementioned frontal system looks to flirt with the northern part of the area for early Tuesday though it is moisture starved and expecting a dry airmass with another ridge of high pressure to quickly build in. This doesn`t last long though, as another rather high amplitude upper trough looks to sling a cold front along its southern extent into the area for late Wednesday into Thursday. Will have to monitor this with other updates as there could be some stronger dynamics and forcing associated with this system and there are some differences in strength and timing in the guidance members. Beyond this feature, we do look to cool down to have some morning lows in the 30s to low 40s for much of the area by the end of the work week. && .AVIATION /11Z FRIDAY THROUGH TUESDAY/...-- Changed Discussion --As of 605 AM EST Friday... A weak front tracking slowly south across southern VA this morning will keep BKN V SCT VFR conditions for the Piedmont to Roanoke with potential MVFR at ROA. Further west low clouds and any fog improve to VFR between 14-17z, with VFR expected thereafter as high pressure builds in. Northwest winds may be gusty to 20 kts at times during the daylight hours. Overall confidence is moderate. EXTENDED AVIATION OUTLOOK... VFR conditions for Saturday. Much deeper moisture arriving from the Gulf of Mexico and the Atlantic arrive ahead of a low pressure over the Mississippi Valley bringing widespread rain and sub-VFR flight conditions Sunday into early Monday. This system will be off the East Coast Monday. Ceilings and visibility will be improving back to VFR.-- End Changed Discussion --&& .CLIMATE... As of 140 AM EST Friday... Lynchburg and Danville could get to record highs again Friday. Record Highs For Today 11/08: SITE Record/Year Forecast Roanoke 79/1975 76 Lynchburg 78/2020 77 Danville 79/1934 78 Blacksburg 78/1975 71 Bluefield 83/1924 63 && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ SYNOPSIS...WP NEAR TERM...WP SHORT TERM...AB LONG TERM...AB AVIATION...AMS/SH/WP CLIMATE...WP