Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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980 FXUS62 KRAH 231801 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 101 PM EST Sun Nov 23 2025 .SYNOPSIS... High pressure will build in from the north today and Monday, then move off the Mid Atlantic coast Monday night. && .NEAR TERM /THROUGH TONIGHT/... As of 100 PM Sunday... Aloft, nwly flow will prevail over central NC through tonight. As a nrn stream s/w tracks ese off the New England coast, a mid/upper disturbance will track across the area, ahead of the sub-tropical ridge approaching from the west. At the surface, a dry, reinforcing cold front will slide south across the area this eve/tonight, with high pressure building into the region behind it. Dry weather will prevail through tonight, with perhaps a few mid-high clouds tonight associated with the disturbance aloft. Highs mainly in the 60s today. Winds could get a bit breezy with the dry cold fropa this eve and remain a bit stirred into tonight, then taper off across the north late tonight/early Mon morning. Lows tonight should generally range from mid/upper 30s north to low 40s south, but will depend on the winds. If winds go calm earlier and/or over a greater area, temps could be a couple/few degrees lower in those places. Likewise, if winds do not taper off across the north as expected, lows may be a couple/few degrees higher there. && .SHORT TERM /MONDAY AND MONDAY NIGHT/... As of 100 PM Sunday... Overview: The sub-tropical ridge will progress across the region on Mon, and off the East Coast Mon night as a potent s/w tracks eastward from the central Plains to the mid-MS Valley. At the surface, high pressure will move ewd across the region Mon and offshore Mon night. Expect increasing high clouds Mon night as the s/w approaches from the west, which should limit the radiational cooling, especially west. Otherwise, dry weather and seasonably warm temperatures are expected, with highs mainly in the low to mid 60s and lows ranging from mid/upper 30s NE to low/mid 40s SW. && .LONG TERM /TUESDAY THROUGH SATURDAY/... As of 400 AM Sunday... A warm front will lift through the area on Tuesday with dew points quickly increasing into the 50s and lower-60s and high temperatures in the lower-60s far NW to mid-70s far SE. Isentropic upglide will result in overcast skies and a chance for patchy light rain. Meanwhile a shortwave trough and associated surface low will move ENE from the Northern Plains to the Upper Great Lakes on Tuesday and Tuesday night. It will then track into southern Ontario and Quebec on Wednesday and Thursday, with the associated shortwave closing off into a mid/upper low during this time. The GFS and ECMWF are now in much better agreement regarding the timing and track of this system, bringing the associated cold front through central NC on Wednesday afternoon and evening. Precipitation will turn more convective in nature on Tuesday night as the air mass turns more moist and unstable. The best chance of showers continues to be on Tuesday night and Wednesday morning. Lows will only drop into the mid-50s to 60. Some precipitation could linger on Wednesday afternoon, particularly in the south and east, before ending on Wednesday night behind the frontal passage. Forecast rainfall amounts on Tuesday and Wednesday range from around half an inch in the far north to a tenth to quarter inch in the SE on average, though locally higher amounts will be possible. Despite marginal instability (around 500 J/kg of CAPE or less), isolated storms can`t be ruled out on Tuesday night and Wednesday as shear will be quite strong with 50-70 kts of mid- level flow. Wednesday`s forecast highs range from upper-60s to mid- 70s, with lows Wednesday night in the mid-30s to mid-40s. Canadian/Arctic high pressure building in from the west will bring a return to dry and mostly sunny but much cooler conditions from Thursday through Saturday. The coolest day looks to be Friday when the high makes its closest approach. High temperatures will only be in the upper-40s to lower-50s (7-12 degrees below normal) and lows Friday night will drop into the mid-20s to 30. Thursday and Saturday will be a few degrees milder on average but still cooler than normal. && .AVIATION /18Z SUNDAY THROUGH THURSDAY/... As of 1230 PM Sunday... VFR conditions expected for the next 24 hours. High pressure over the region will result in light to calm winds and mostly clear skies. Outlook: IFR-MVFR ceilings and patchy light rain will likely overspread the Piedmont ahead of a retreating warm front Tue morning. A chance of rain, increasingly convective in nature, and also flight restrictions, are expected later Tue through Wed, as a strong frontal system traverses the region. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...Hartfield NEAR TERM...10 SHORT TERM...10 LONG TERM...Danco AVIATION...CA/MWS