Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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742 FXUS62 KRAH 200813 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 313 AM EST Thu Nov 20 2025 .SYNOPSIS... A cold front will settle across GA and SC today. High pressure will ridge across the region for Thursday through early Friday before the front lifts north as a warm front on Friday across the Carolinas and into VA. && .NEAR TERM /TODAY THROUGH TONIGHT/... As of 311 AM Thursday... Sfc analysis this morning depicted nely flow across central NC in wake of a cold front that has cleared south into SC/GA. Further upstream, a thick blanket of stratus has formed along south of the mouth of Chesapeake Bay. This deck should sag south across the northern Coastal Plain and northern/central Piedmont over the next several hours and linger through late morning/midday. With the front stalled to our south, and persistent nely flow, expect highs today to be a bit cooler in the upper 50s (NE) to around 70 (SW). As we progress to this evening and overnight hours, isentropic upglide will promote light rain chances mainly across central to northern areas. Expect largely trace to a few hundreds of an inch at most through 12Z Friday. Overnight lows in the mid 40s to around 50 are expected. Some patchy fog may be possible late tonight/early Friday morning along the NC/SC border. && .SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/... As of 311 AM Thursday... The front previously stalled across SC on Thursday will move north as a warm front on Friday. With largely zonal flow overhead, much of Friday should be dry with light sswly flow at the sfc. By Friday evening/overnight, weak mid-level perturbations will move across the southern Appalachians. This, along with some WAA, may promote light rain across our area. However, QPF guidance amongst ensembles aren`t overly impressed with amounts through 12Z Saturday, generally a few hundreds to a few tenths across the north. Otherwise expect warmer daytime highs in the mid 60s to mid 70s. Overnight lows in the mid 50s to around 60 are expected. Some additional fog may be possible late Friday night/early Saturday morning near the NC/VA border. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... As of 1252 PM Wednesday... * Rain chances in the extended focused on Sat and late Tue/Wed We will start mild on Sat ahead of a cold front slated to move south out of VA. Ahead of the front, highs will be some 10-15 degrees above normal in the low 70s N to mid/upper 70s S. The amount of energy at mid-levels is relatively weak, but there does appear to be enough isentropic lift and convergence along the boundary to warrant some light rain or showers in the afternoon/evening. Rainfall amounts, look to be light at a tenth of an inch or less in the ensemble data. Temperatures lower slightly Sun and Mon behind the front and with somewhat cooler high pressure over the region. We should still manage above normal highs by some 5-10 degrees in the 60s to around 70 and lows in the 40s. For the early to middle part of next week, ridging will take over briefly ahead of our next system. Guidance is indicating another frontal system moving east from the Central Plains and MS valley region. Currently, the models are not in excellent agreement on timing, but a consensus of the ensemble data would suggest the best chance of rain/showers sometime late Tue into Wed. Confidence on details is low at this point, depending on the actual track of the system. Highs are expected to mainly hold in the 60s through midweek. && .AVIATION /06Z THURSDAY THROUGH MONDAY/... As of 134 AM Thursday... VFR conditions under nely sfc flow is showing across central NC early this morning. However, a blanket of MVFR/IFR stratus over the southern mouth of Chesapeake is quickly approaching KRWI. Suspect this sub-VFR cloud deck will impact KRDU, but should remain north and east of KFAY/KINT/KGSO. Expect this layer to slowly lift through late Thursday morning as KRWI/KRDU return to VFR. Additional multi-layer cloudiness, primarily mid and high level clouds, will advect across central NC throughout the rest of the 24 hour TAF period. Light isentropic-driven rain may reach KINT/KGSO around 06Z Friday, but any associated sub-VFR ceilings will largely hold off till after the 24 hr TAF period. Outlook: Sub-VFR stratus associated with isentropic-driven light rain will spread across the western/central Piedmont Friday and linger through Friday evening. Additional rounds of light rain and low-level cloudiness will be possible Friday night into Saturday. A front will sag into central NC on Saturday, continuing the chance for unsettled weather. The front will clear south of our area Sunday, with dry VFR weather returning early next week. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...Blaes NEAR TERM...Luchetti SHORT TERM...Luchetti LONG TERM...AK AVIATION...Luchetti