


Area Forecast Discussion
Issued by NWS Wilmington, NC
Issued by NWS Wilmington, NC
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295 FXUS62 KILM 111418 AFDILM Area Forecast Discussion National Weather Service Wilmington NC 1018 AM EDT Tue Mar 11 2025 .SYNOPSIS... High pressure builds across the area today behind an exiting area of low pressure. Temperatures will remain above normal through the end of the week. Another storm system is expected to affect the region this weekend into early next week. && .UPDATE... No major changes coming down the track at the 10 AM EDT forecast update. Low pressure continues to slowly push offshore, and sunshine is really starting to come in now. Some parts of Pender County still have some low clouds, but that`ll clear out within the next hour or two. && .NEAR TERM /THROUGH TONIGHT/... A potent closed mid-upper low will continue shifting increasingly offshore through the period. Wraparound showers are making their way to the coast and will shift offshore around 08-09Z, with skies clearing from west to east behind these showers. Gusty north to northwest winds will continue into early this morning near the coast as a strengthening surface low pulls away, however, the weakening pressure gradient and slackening low-level flow will allow gustiness to abate by late this morning, leaving steady northwesterly winds. The coastal counties of Cape Fear have the potential for a burst of gusty winds for a few hours soon after sunrise as vertical mixing taps into remnant fast low-level flow, which could allow for gusts up to 30kts or so. With plenty of subsidence and dry air in the column, expect a sunny, warm, and dry day to ensue with highs in the low to perhaps mid-70s. As the pressure gradient weakens through the day, expect winds to become light and variable after sunset with good radiational cooling allowing for a rapid cooldown this evening beneath clear skies. Lows should dip into the low-mid 40s, with some normally cooler/sheltered locations possibly dipping into the upper 30s. && .SHORT TERM /WEDNESDAY THROUGH WEDNESDAY NIGHT/... High pressure to our south on Wednesday will maintain very dry and quiet weather across the region. Light synoptic winds turn southwesterly and southerly near the coast due to the sea breeze. High temperatures in the upper 70s to near 80. Clear overnight with lows in the upper 40s to around 50. && .LONG TERM /THURSDAY THROUGH MONDAY/... A compact shortwave tracking across the southeastern US will approach the Carolinas on Thursday. As it moves eastward, the limited moisture associated with the upper low will disperse as the it lifts into the broader zonal flow. Dry air in the low levels force us to maintain dry forecast. Cloud cover associate with the shortwave will keep highs on Thursday in the upper 70s. Expect warmer conditions on Friday behind whatever is left of the shortwave with southerly flow providing increased humidity and warmer temperatures near 80 degrees. A surface low and trough over the central US will produce stronger advection on Saturday ahead of a cold front expected to move through the region on Sunday. With increased rain chances, there is a chance for a few thunderstorms. Still too early to highlight any severe weather potential. High pressure and dry conditions return next week. && .AVIATION /14Z TUESDAY THROUGH SATURDAY/... VFR conditions are now in place at all terminals and will remain in place through the TAF period with steady northwesterly winds gradually subsiding through the day. At ILM, remnant strong low- level flow may be tapped soon after sunrise and permit a period of gusty winds with gusts exceeding 25 kts for a few hours before the flow gradually weakens. Expect winds to become light and variable after sunset, although very dry air should preclude any substantial mist formation overnight. Extended Outlook... High pressure will dominate with high confidence in VFR conditions persisting through Friday. Increasing moisture ahead of a strong storm system may lead to mist/fog concerns on Friday night into early Saturday. && .MARINE... Through Tonight... Stiff northwesterly winds will gradually subside through today and back to WNWrly by late in the day. Seas will follow suit, although SCA-level seas of at least 6 feet look to remain in the NC coastal waters through early afternoon. Otherwise, expect westerly winds to fall to or below 10 kts this evening and persist through the night while seas subside into the 1-3 ft range by late in the night. Wednesday through Saturday... High pressure off of the southeastern US coast brings southerly and southwest winds to the area late this week. A passing shortwave could bring a shower or storm offshore on Thursday night. While the gradient remains weak on Friday, southeasterly winds increase and gradually veer throughout the day. On Saturday, the synoptic gradient increases ahead of a strong low pressure system over the central US. Seas build late Saturday and Saturday night with the approaching surface cold front. Conditions will likely approach SCA thresholds with this cold front. && .ILM WATCHES/WARNINGS/ADVISORIES... NC...None. SC...None. MARINE...Small Craft Advisory until 2 PM EDT this afternoon for AMZ250- 252-254-256. && $$ SYNOPSIS...ILM UPDATE...IGB NEAR TERM...ABW SHORT TERM...21 LONG TERM...21 AVIATION...ABW MARINE...21/ABW