


Area Forecast Discussion
Issued by NWS Blacksburg, VA
Issued by NWS Blacksburg, VA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
425 FXUS61 KRNK 181856 AFDRNK Area Forecast Discussion National Weather Service Blacksburg VA 256 PM EDT Fri Apr 18 2025 .SYNOPSIS... High pressure continues to dominate the weather pattern, with a warm southwesterly wind advecting in well above average temperatures through the weekend. The next chance of rain is not expected until late Monday, when a frontal boundary moves in. The front stalls to our south, keeping unsettled weather possible through late week. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... AS OF 200 PM EDT Friday... Key Messages: 1) Temperatures remain well above average. 2) High pressure keeps dry, but breezy conditions around. A strong surface high pressure in the Western Atlantic will continue to ridge across our area, and keep quiet, dry weather in place into the weekend. The clockwise flow around the high has southwesterly winds advecting warm air into the Mid-Atlantic, which will drive temperatures into the upper 70s west of the Blue Ridge, and into the low 80s across the piedmont this afternoon. An upper- level ridge over the southeastern US will continue to keep sinking air over our area, with mostly sunny skies for today. Winds remain gusty at times, up to 30 mph along the ridgetops, with 20 mph gusts for the lower elevations. Overnight, moisture will also begin to advect into the area from the southwest, as a frontal boundary will move into the Ohio River Valley but remain off to our northwest, keeping dry weather in place through Saturday. The flow will keep overnight lows mild, in the upper 50s. For Saturday, winds remain elevated, but reduce slightly, with gusts of 15-25 mph. Temperatures rise further, with highs mainly in the 80s, with a few spots in the piedmont possibly reaching 90. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY/... As of 115 PM EDT Friday... Key messages: - Unseasonably warm through Monday - Highest confidence of precipitation Monday and Monday night Starting with an amplified upper pattern and a 593 dm 500 MB ridge off the South Carolina coast by Sunday morning. The ridge flattens Monday and Monday night, and at the surface a cold front will cross the area. Have increased the probability of precipitation over the mountains Monday night. Unseasonably warm air remains over the region until the front comes through on Monday. Maximum temperatures will be 10 to 20 degrees above normal on Sunday, despite increasing cloud cover. More clouds and higher surface dew points Sunday night will result mild overnight lows. Will stay on with the warmer guidance on Monday for maximum temperatures as the area returns to the warm sector. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... As of 145 PM EDT Friday... Key messages: - Above normal temperatures continue - No organized periods of rain Expecting a slightly flatter split flow upper pattern during this time range. Synoptic scale models begin to diverge in solutions on Wednesday night. A short wave may track through the southern stream and over the area on Thursday night. The surface front slows, but continues south to the Gulf coast region becoming aligned more west to east. How far south this front progresses will determine the probability of rain. At this time southern Virginia and northern North Carolina have a better probability on Tuesday and Wednesday. Not a dramatic cool down, but expecting highs 5 to 10 degrees above normal Tuesday and Wednesday. Wednesday morning will be the coolest of the week, with lows in the mid 40s to mid 50s in the mountains and in the 50s in the foothills and piedmont. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... As of 200 PM EDT Friday... VFR conditions are present at all terminals this afternoon, as high pressure continues to dominate the weather pattern across the area. Little to no clouds are expected, but winds will remain elevated from the south/southwest around 10-15 knots gusting to 20-25 knots at times. Tonight, winds slightly reduce and subtly shift to the southwest, but gusts of 10-20 knots remain possible. Models also are showing LLWS during the night into early Saturday morning between 03- 12z, with values of 35-40 knots from the WSW expected at BCB/BLF/LWB. With the upslope flow, stratus clouds are expected to develop in the piedmont overnight, which will briefly lower ceilings for DAN to around 4500 feet between 10-14z, but remain in VFR conditions. No other terminals will see this occur. Southwesterly winds remain elevated tomorrow, between 7-12 knots, with gusts up to 20 knots at times. Confidence is high that VFR conditions are expected to continue through the end of the TAF period. .EXTENDED AVIATION OUTLOOK... A mostly dry cold front moves into the northern half of the area late Sunday, with a slight chance of rain for LWB/BLF. Otherwise, dry conditions are expected to continue into early next week, before the cold front finally moves into the area late Monday, bringing rain chances back into the area with likely sub-VFR conditions for all terminals through Tuesday. There is uncertainty in the forecast through late next week, as the front will stall somewhere in the Carolinas, which will keep rain chances possible each day, mainly for southern Virginia and into NC, which may affect flight conditions. && .CLIMATE... As of 225PM EDT Friday... Maximum temperatures on Saturday will be close to record values at some of the local climate sites. Below are the current record highs for April 19th. Bluefield, WV....85 in 1976 Forecast: 80 Danville, VA.....94 in 1976 Forecast: 86 Lynchburg, VA....92 in 1941 Forecast: 86 Roanoke, VA......91 in 1995 Forecast: 90 Blacksburg, VA...86 in 1976 Forecast: 85 && .RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None. && $$ SYNOPSIS...JCB NEAR TERM...JCB SHORT TERM...AMS LONG TERM...AMS AVIATION...JCB/WP CLIMATE...AMS