737 FXUS61 KRNK 031543 AFDRNKArea Forecast Discussion National Weather Service Blacksburg VA 1143 AM EDT Fri Oct 3 2025
.SYNOPSIS... High pressure will maintain dry and seasonal weather over the region through the weekend. Next week the high moves offshore while a front approaches from the west.
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.NEAR TERM /THROUGH TONIGHT/... As of 1100 AM EDT Friday...
Key Message: Dry and Seasonal.
Modest updates to the forecast this morning, mainly to adjust temperatures given abundant sunshine as nearly all fog has burned off for the morning. No weather hazards are expected today or tonight.
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.SHORT TERM /SATURDAY THROUGH MONDAY NIGHT/... As of 120 AM EDT Friday...
Key Messages:
1. Dry weather continues through the weekend, with temperatures trending warmer.
2. Rain chances increase Monday.
Surface high pressure will remain in control of the weather through the weekend, keeping skies mostly sunny and precipitation chances near zero, making for a pleasant fall weather. With a dry airmass overhead, dewpoints in the mid 40s to mid 50s range, expecting good radiational cooling at night and overnight lows in the mid 40s to lows 50s in the east, but abundant sunshine pushing afternoon highs to the low 70s in the west and upper 70s in the east.
The surface high will move offshore late in the weekend, turning winds more easterly and then southerly, advecting more moisture into the region. With that, should see an increase in cloud cover and humidity. The upslope flow could trigger some showers across the southern Blue Ridge Monday, especially over northwest North Carolina and portions of southwest Virginia.
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.LONG TERM /TUESDAY THROUGH THURSDAY/... As of 135 AM EDT Friday...
Key Messages:
1. Rain expected during the middle of the week.
2. Dry conditions and noticeably cooler temperatures late in the week.
The surface high that has been dominating the weather pattern over the region will finally be centered off the eastern seaboard, with the 500mb ridge being slowly pushed east by an advancing trough from over the north central Plains. Ridging over the southern US doesn`t completely erode with the advance of the upper trough, but more so flattens, before becoming more amplified over the south central US late in the work week in the wake of the trough. A cold front will track through the area Wednesday, though some model guidance disagrees on the exact timing. Nonetheless, this will be the best chance in recent days of a more widespread, beneficial rainfall. NBM probabilities for 48 hour rainfall amounts exceeding 0.5" by Thursday morning are highest generally along and west of the Blue Ridge, ranging from 30% to 40%.
The airmass behind the front will be noticeably cooler, bringing highs in the 60s and lows in the 40s for later in the work week. Tuesday and Wednesday will still see highs in the 70s areawide. After the frontal passage, looks to be a repeat pattern from this week, with high pressure tracking east across the northeastern US and northern Mid Atlantic and wedging down the eastern side of the mountains, though with cooler temperatures.
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.AVIATION /15Z FRIDAY THROUGH TUESDAY/... As of 630 AM EDT Friday...
Mainly VFR through the period. Except is IFR or lower vsby with fog at LWB/BCB in the 12-13z time frame and again late tonight from 09-12z.
EXTENDED AVIATION OUTLOOK...
So long as the high pressure influences our airspace, a repeated pattern of mostly clear skies and overnight fog is possible for the next few days. The extent of fog may be limited depending on how dry conditions get. The next best chance of precipitation will be the middle of next week when another frontal system arrives.
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.RNK WATCHES/WARNINGS/ADVISORIES... VA...None. NC...None. WV...None.
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SYNOPSIS...WP NEAR TERM...NF/WP SHORT TERM...AS LONG TERM...AS AVIATION...WP
NWS RNK Office Area Forecast Discussion