


Area Forecast Discussion
Issued by NWS Wilmington, NC
Issued by NWS Wilmington, NC
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520 FXUS62 KILM 070043 AFDILM Area Forecast Discussion National Weather Service Wilmington NC 743 PM EST Thu Mar 6 2025 .SYNOPSIS... High pressure to our west will move across the Carolinas Friday, then offshore Friday night. Low pressure developing along the Gulf Coast may bring clouds and rain to the area Saturday night through Sunday night. The low should move offshore Monday with improving weather conditions developing later in the day. High pressure should bring warmer and drier weather for the middle of next week. && .UPDATE... Winds are subsiding quickly as the boundary layer stabilizes. Surface high pressure centered across the lower Mississippi Valley should push eastward to Georgia by daybreak. Local surface wind speeds that have already fallen to under 10 mph should diminish to 0-3 mph with a good radiational inversion developing tonight. The previous forecast had already placed forecast lows on the lower end of the guidance envelope, so no significant changes were necessary with this evening`s forecast update. && .NEAR TERM /THROUGH FRIDAY/... As dry air streams in, cumulus is clearing out from SW to NE and is largely out of our area. WNW winds are still gusting 25-35 kts as the pressure gradient remains tight until tonight where high pressure will start to creep in from the SW. This should cause winds to drop off sharply after sunset where they`ll become light and offshore until Friday morning. Lows will be near freezing, with our colder spots radiating out into the mid 20s. Come Friday morning, the high will be centered to our south with SW flow setting up over the area. This should allow for some WAA and a recovery of temperatures into the 60s. Aloft, a disturbance will pass by to the north. Any low level moisture looks to get lost in the mountains, but it will come with increased cloud cover into Friday afternoon/evening. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/... Very quiet through the short term period as a broad southwest flow will be in place at least through Saturday. A cold front will drift across the area Saturday night into Sunday and with good moisture and isentropic lift...showers move into the area south to north Sunday. After a warm Saturday...Sunday will be almost the polar opposite with highs in the perhaps rain/wind driven middle to upper 60s. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Reasonable agreement on the mid level low moving across the southeast Monday so rain chances remain in the forecast. Tuesday and Wednesday offer up dry and warm conditions with a zonal flow developing at 500mb. A distant shortwave brings back an introduction of pops late in the period but confidence/timing with this feature is low due to timing. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... High confidence in VFR conditions continues for the next 24 hours. Gusty west winds have quickly diminished with the loss of daylight, and winds may diminish to near calm before sunrise. Mid to high level clouds will increase around daybreak, but VFR conditions should continue beneath cloud bases no lower than about 15000 feet AGL. High pressure moving offshore will allow wind directions to become southwesterly Friday afternoon with speeds increasing to 10-12 knots. Extended Outlook...There is high confidence VFR conditions will continue through Saturday. Low pressure developing along the Gulf Coast should spread clouds and rain north toward the Carolinas late Saturday night through Sunday Night and there is moderate confidence MVFR to IFR conditions will develop then. Moderate confidence exists for VFR conditions returning during the day Monday as low pressure exits the Southeast coast. && .MARINE... Through Friday...Small Craft Advisory conditions will come to an end tonight as low pressure continues off to the NE and high pressure builds in from the SW where it will stay centered. The pressure gradient will relax with offshore flow becoming SW at ~10 kts by Friday afternoon. Seas will decrease from 3-6 ft to 1-2 ft by Friday morning where they`ll linger through the rest of the period. Friday Night through Tuesday...A healthy southwest flow will be in place Friday night and most of Saturday. Conditions will change quickly Sunday with a brisk NE flow with seas possibly increasing to headline criteria. This threat will persist through most of the day Monday as the set up will be relatively slow to change. After a brief offshore flow in the wake of the system a return flow develops by the end of the period. As mentioned earlier the events of Sunday and Monday represent the worst of conditions during the forecast period. && .ILM WATCHES/WARNINGS/ADVISORIES... NC...None. SC...Air Quality Alert until 6 PM EST Saturday for SCZ054-058-059. MARINE...Small Craft Advisory until 9 PM EST this evening for AMZ250- 252-254-256. && $$ SYNOPSIS...ILM UPDATE...TRA NEAR TERM...LEW SHORT TERM...SHK LONG TERM...SHK AVIATION...TRA MARINE...SHK/LEW