Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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371 FXUS62 KRAH 060551 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 1245 AM EST Sat Dec 6 2025 .SYNOPSIS... A cold front will hold to our southeast through the weekend, as weak high pressure settles over North Carolina and the Mid Atlantic region. An Arctic cold front will move southeastward through the area on Monday. && .NEAR TERM /THROUGH TONIGHT/... As of 830 PM Friday... We ended up issuing a Winter Weather Advisory for black ice and freezing fog from now until 8 AM tomorrow morning for our northernmost counties from Forsyth east to Vance. In these areas, temperatures and dew points are currently in the 30-32 degree range and expected to stay there through tonight. In addition, widespread mist and locally dense fog has developed in these areas and is expected to linger through early tomorrow morning according to high-res guidance like the HRRR and GLAMP. So the threat of freezing fog and black ice is great enough to warrant putting out an advisory. Be sure to use caution if driving tonight. As of 230 PM Friday... Water vapor imagery this afternoon depicted continued flux of anomalous moisture from the deep south through the southeast. The main vort lobe that triggered today`s precipitation continues to move east over the Mid-Atlantic. As this feature continues east and weakens, expect any lingering light rain across eastern areas to end this evening. Given the persistent pool of anomalous low-level moisture expected tonight, there is a good signal for areas of dense fog especially across the northern Piedmont and Coastal Plain. Otherwise, overnight lows should dip into the upper 20s across the north to mid 30s across the south. There could be some patchy black ice along the NC/VA border, but these areas didn`t really accumulate snow today so think it`ll be isolate if at all. && .SHORT TERM /8 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/... As of 230 PM Friday... A weak short-wave will pass over the southeast on Saturday but we should generally see wnwly flow aloft. As such, the higher PWAT should generally remain to our south through the period. Can`t rule out light rain across the southeast Saturday afternoon, but again think the chances should be fairly limited. Daytime highs should reach the upper 40s under generally cloudy skies. We won`t see a change in airmass Saturday night, and as such anomalous low-level moisture will linger over central NC. Aloft, latest guidance also suggests we could clear out over a bunch of our CWA behind the little weak short-wave. As such, dense fog may be possible Saturday night/early Sunday morning across much of our area. The HREF and REFS probabilities for less than a half mile visibility is in the 60 to 70% range for much of our area. We`ll continue to monitor trends, but as of now there is a good signal in the guidance that conceptually makes sense. Overnight lows will dip into the upper 20s to mid 30s. && .LONG TERM /SUNDAY THROUGH FRIDAY/... As of 130 PM Friday. . . -Chilly, below average temperatures expected Sun-Tues. -Precip chances increase overnight Sunday into Monday. -Dry weather expected Tuesday through late week. High pressure will shift off the Mid-Atlantic coast on Sunday, allowing a weak front to move across the region late Sunday night into Monday. Moisture will be limited, but a few light showers are possible. With temperatures in the mid to upper 30s as precip arrives, a brief rain/snow mix is possible across the northern Piedmont, potentially edging slightly farther south Monday morning as colder, drier air begins to filter in behind the front. Precipitation will taper off Monday evening, followed by a stronger push of cool, dry air Monday night. Lows will fall into the upper teens to lower 20s by early Tuesday. High pressure then dominates Tuesday and Wednesday, bringing dry conditions with highs in the low to mid 40s and lows in the 20s Tuesday and mainly 30s Wednesday. A clipper system will track across the Great Lakes Wednesday and exit off the New England coast Thursday. At this time, associated precip is expected to remain north of central NC, keeping the area dry through late week. && .AVIATION /06Z SATURDAY THROUGH WEDNESDAY/... As of 1245 AM SATURDAY... Low clouds have settled in with ceilings below 500ft and LIFR across all of central NC. These conditions will continue through mid-morning, with some dense fog possible as well by 09Z, although confidence in fog is a little low given the amount of high clouds streaming overhead per satellite imagery. Have kept a TEMPO for lowering vsbys in the 09-13Z time frame. Models then suggest some slow lifting and scattering through the afternoon hours, though with no airmass change, would not be surprised if sub-VFR continues in the afternoon. Fog and low clouds look pretty likely again tonight, perhaps settling in as early as 04Z and continuing through Sunday morning. Outlook: A short-wave will induce light precipitation (likely mostly rain, but perhaps a chance for some winter weather across the north) on Monday. VFR conditions will then persist through much of early to middle of next week. && .RAH WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until 8 AM EST Saturday for NCZ007>009- 021>025. && $$ SYNOPSIS...10/Hartfield NEAR TERM...Danco/Luchetti SHORT TERM...Luchetti LONG TERM...CA AVIATION...BLS