


Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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396 FXUS62 KRAH 120058 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 858 PM EDT Sat Oct 11 2025 .SYNOPSIS... Low pressure off the northeast coast of Florida will intensify as it tracks slowly northeast along the coast of the Southeast states, Carolinas, and Mid Atlantic through Monday. && .NEAR TERM /THROUGH TONIGHT/... As of 250 PM Saturday... Light rain continues to move into our southern areas as the offshore low develops. Thus far, radar estimates are only highlighting trace to a few hundreds of an inch in areas that have received rain. Latest high-res guidance continues the trend of very light stratiform rain spreading n-nw through this afternoon and evening. As we progress into the late evening to overnight period, some steadier (light to moderate) rain will move nw into the Coastal Plain and portions of the Sandhills/Central Piedmont. The HREF LPMM QPF continues to highlight perhaps three quarters to an inch of rain in the Triangle area through 12Z Sunday morning. Those west of US-1 will likely see very little (a few hundreds to a few tenths) through 12Z Sunday, while those along I-95 may see up to an inch and a half to maybe 2 inches in isolated spots. Given these expected rain totals and how dry its been in the Coastal Plain, not expecting any flooding impacts from this system. Otherwise, we`ll continue to see nnely sfc gusts pick up this afternoon and evening with frequent gusts of 15 to 25 mph. Those in the Coastal Plain could see a bit stronger gusts after 06Z tonight, with gusts of 30 to 35 mph possible through mid Sunday morning. && .SHORT TERM /SUNDAY AND SUNDAY NIGHT/... As of 130 PM Saturday... * Continued breezy with high rain chances, decreasing late. Models agreed fairly well that the surface low will be near the southern Outer Banks or southern coast of NC tomorrow morning, with a likely secondary low further N along the Mid Atlantic coast. The mid levels will continue to feature a deep E Coast low/trough, highlighted by 2 embedded closed lows over GA/SC and NY. The surface low is expected to steadily lift northward, reaching the tip of the Delmarva by late Sun night. (It is worth noting that the RAP/HRRR instead favor taking the low slowly SSW over E SC Sun/Sun night, not an impossible solution given the presence of the slow-moving mid level trough. But with a high spread among HREF members, will favor a more progressive low at this time.) Given the expected high moisture content through the low and mid levels over central NC, strong and confluent northeasterly low level (925-850 mb) moisture flux, a stream of 150% of normal PW, and forcing for ascent provided by moist upglide topped with fading but still-present upper divergence and weak DPVA, continued high pops in the 50-70% range are warranted. An area of higher categorical pops may be necessary over central and eastern sections, depending on where the cold front aloft sets up as the surface low tracks northward. Additional rainfall of a quarter to three-quarters of an inch is expected, with isolated higher amounts possible if any pivoting rainbands form. Winds just off the surface are projected to be from the NNE around 35-45 kts for much of the day, and with at least some groundward mixing and modest low-level stability, peak gusts of 25-30 mph are expected, a bit of an uptick from the previous forecast. With minimal sunshine, thick clouds, CAA, and areas of rain, temps over most of the area should move just 5-8 degrees from tonight`s lows, putting highs in the mid 60s to around 70. Rain should gradually diminish by evening and particularly overnight, with pops decreasing to low chances mainly NE late and low amounts as lift wanes and we lose moisture aloft. Expect a low diurnal range to persist, with lows in the mid 50s to around 60, as we see a steady breeze last into the night with continued high moisture in the low levels and only partial clearing expected in the west late. -GIH && .LONG TERM /MONDAY THROUGH FRIDAY/... As of 155 PM Saturday... * Lingering light rain possible in the E CWA early Mon morning, otherwise dry weather expected through the week. Gradual drying is expected to continue Mon morning as low level flow backs to a more NNW to NW direction, yielding a downslope component, although as noted above, if the recent RAP/HRRR is correct, we may see light rain chances hold on longer over the E as one last dose of energy swings through the trough base over E NC Mon. Otherwise, as the surface low departs to the NE, mild high pressure building in from the W along with rising heights aloft due to amplified mid level ridging spreading in from SE TX will result in fair skies and near to above normal temps into mid week. A renewed digging of a deep mid level low over the far NW Atlantic off New England late in the week is still expected to drag a dry backdoor cold front southward through NC, drawing cooler thicknesses back into the area and bumping temps back below normal for Thu/Fri. Moist return flow will be lacking with this front, so aside from perhaps early Mon, dry weather is likely through Fri. Expect highs in the upper 60s to mid 70s Mon, coolest NE, followed by low-upper 70s Tue/Wed, then back to the mid 60s to mid 70s for Thu and Fri. -GIH && .AVIATION /00Z SUNDAY THROUGH FRIDAY/... As of 855 PM Saturday... MVFR to VFR ceilings and light rain continue to spread over the region as the coastal low continues to develop offshore. Overnight, MVFR ceilings should spread westward and continue to lower to IFR. IFR ceilings are expected to last throughout the day on Sunday, with periods of LIFR ceilings possible Sunday evening in the eastern TAF sites (RDU/FAY/RWI). Gusty winds should also continue overnight and through the day on Sunday. Gusts up to 25 kts are most likely, with gusts up to 30 to 35 kts possible, especially in the east. Gusts will lessen the chance of LLWS criteria being met, however kept the mention at RDU/FAY/RWI as a strong jet around 50-55 kts is expected at around 925mb. Light rain, with periods of moderate rain possible, is also expected to continue throughout the night and day. This could reduce visibilities to sub-VFR. Outlook: Light rain and sub-VFR ceilings may persist into the overnight period on Sunday. The low will lift north into the Delmarva area by Monday morning, behind which drier air should clear out the sub-VFR cloudiness through Monday afternoon. VFR conditions will then persist through the rest of the extended as high pressure settles down the east coast. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...Hartfield NEAR TERM...NTL SHORT TERM...Hartfield LONG TERM...Hartfield AVIATION...LH/NTL