Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
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022 FXUS62 KMHX 201739 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 1239 PM EST Thu Nov 20 2025 .SYNOPSIS... High pressure rebuilds offshore late this week with above normal temperatures returning. A frontal system will bring the next chance of rain this weekend, with cooler and drier conditions expected early next week. Another system brings a small chance for rain by mid week next week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... As of 3 AM Thu...Secondary backdoor front has all but passed through ENC early this morning. In it`s wake, frontal inversion stratus has oozed south along and behind the front. Weak cold air damming will be in place today with high pressure ridging down the lee of the Appalachians and light northerly flow at the surface. Clouds will remain for most of the morning, but then some uncertainty on how much clearing occurs this afternoon. Some of the higher res CAM`s are stubborn on breaking out into mo sunny skies, and with weak late Nov sun, this is a possibility. As a result, there will be a large temperature range across the forecast area with any areas that remain cloudy remaining in the 50s, but where sun breaks out, mid 60s possible. Have fcst middle of the road option, with most areas around the 60 degree range for highs fcst. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 AM FRIDAY/... As of 3 AM Thu...Light/calm winds expected tonight with mild conditions expected. Lows will be well into the 40s with a mix of clouds and stars overhead. Cont dry weather will persist. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... As of 3 AM Thu...Mainly mild conditions expected with above climo temps through mid next week. Chances for light rain on Fri, then again Sat through early Sat evening. Another system brings rain chances by mid next week. Fri through Sat...Next frontal system moves in bringing light rain chances. Isentropic light rain chances on Fri as warm front lifts through. Little accums expected as the rain will be falling through dry air downstairs, but spotty rain or sprinkles through the day are possible. ECMWF remains most bullish on rain. Widespread cloud cover keep temps on the cooler side and near climo, in the 60s region wide. On Sat, ENC is in warm sector with highs rebounding back into the 70s as warm front will have lifted north. Kept pops in the chc range for now Saturday and Saturday night. Rain amts do not appear impressive, but perhaps some areas could see a wetting rain. Thunder chances are very slim to none, and generally below 15%, as models cont to advertise CAPE`s no higher than 150-400 J/KG, and will relegate to the warmer gulf waters. Sun through Mon...High pressure is then forecast to build in behind the early weekend front, with dry conditions ensuing. Zonal flow will be in place, so temps should be around avg during this period, with highs in the 60s to near 70 and lows in the 40s. Sun night will be the coolest night, with lows in the 30s interior to 40s coast. Tue through Wed...Next chance for rain arrives by Tue, and esp Tue night into early Wed, as shortwave and frontal boundary sweep through. This system has the potential to tap into some GOM moisture, as layer streamlines are out of the sw through the SE CONUS, but timing and mesoscale features are yet to be ironed out, so no higher than 30-50% pops this far out in time. Temps rebound to warmer than climo, with highs in the 70s and lows in the 40s to 50s. && .AVIATION /18Z THURSDAY THROUGH TUESDAY/... As of 1245 PM Thursday... Key Messages - Chance of fog tonight with the greatest potential north of Highway 70/I-42 - Chances for showers and sub-VFR conditions tomorrow as a weak warm front lifts through the area Low stratus has mixed out across the southern half of the forecast area as of early Wednesday afternoon but continues to linger north of Highway 70. Visible satellite trends indicate that the lingering low ceilings will soon lift for the remaining TAF sites through 19Z; however. VFR conditions will then persist through the early overnight hours with calm winds and only some scattered mid/high clouds. Forecast uncertainty then increases after midnight tonight. Most guidance is indicating patchy to areas of fog developing after midnight, with the greatest potential north of Highway 70/I-42. This would bring sub-VFR VIS to PGV and ISO. Guidance remains uncertain on whether potential will extend farther south to EWN/OAJ. Additionally, mid-to-high level clouds are forecast to begin increasing overnight ahead of an approaching warm front. Should these clouds build in thicker and/or quicker than anticipated, the overall potential for fog may be tempered. Should clouds be slower/thinner, fog potential will be greater and may bring IFR to LIFR VIS. Have trended the TAFs towards lower VIS this cycle, but given uncertainty, have only introduced MVFR VIS for PGV/ISO. Warm front is then forecast to begin lifting through the region tomorrow morning. Any fog is expected to mix out after sunrise, but WAA atop the frontal inversion is expected to lead to lowering ceilings and increasing chances for showers through the morning and into the afternoon, including another chance for sub-VFR conditions. Given uncertainty regarding timing and coverage, have opted against any inclusion in the TAFs as of this cycle but will continue to monitor for future adjustments. Outlook: Yet another chance for Sub-VFR conditions over the weekend when a series of approaching, and eventually passing, fronts increase rain chances and sky cover. Highest chances currently Sat evening into Sun morning, although typical timing differences lower confidence. && .MARINE... As of 3 AM Thu...Nrly surge has abated and winds are below 25 kt over the coastal waters, with seas of 3-5 ft. Winds will cont to slowly diminish through the day with high pres building in. High eases through ENC overnight, then shifts offshore on Fri with return srly flow ensuing but remaining light, 5-15 kt. Seas generally 2-4 ft. Sat through Mon...Swrly gradient inc Fri night into Sat morning, and SCA will likely be needed for the warmer Gulf Stream waters where good mixing occurs. Elsewhere, a stout marine inversion will be in place with a 70s airmass atop SST`s in the 50s and 60s keeping winds in the 5-15 kt range. Winds turn nrly behind cold front late Sat, with surge of brief SCA winds possible for areas outside of the Gulf waters, but then quickly diminish on Sun into Mon. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...TL SHORT TERM...TL LONG TERM...TL AVIATION...ZC MARINE...TL