Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
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744 FXUS62 KMHX 291412 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 1012 AM EDT Mon Apr 29 2024 .SYNOPSIS... High pressure will remain anchored offshore through mid week. A cold front will impact the area late in the week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... As of 1015 AM Monday...Quiet weather pattern persists across the Carolinas this morning as upper level ridge axis remains centered overhead and Atlantic high pressure extends inland from the Atlantic. Less moisture to work with today than yesterday and expecting little appreciable cloud cover, which in turn will allow for full insolation. Current temperature trends look good, but did adjust temps a bit over the Outer Banks where temperatures are already running a bit above guidance. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 AM TUESDAY/... As of 230 AM Monday... Mid/upper level ridging remains overhead tonight, with a continued southwesterly flow helping support mild, above normal, overnight temperatures. One potential fly in the ointment for tonight is the potential development of fog/stratus. The orientation of the high offshore will support a moistening southwesterly flow, with dewpoints forecast to rise into the low 60s through the night. Forecast soundings suggest the depth of low-level moistening may be sufficiently deep to support some low stratus, or fog, development. At minimum, it could be a scenario where at least patchy fog is able to develop that has more depth to it than the patchy ground fog of late. && .LONG TERM /TUESDAY THROUGH SUNDAY/... As of 330 AM Monday... KEY MESSAGES - Low to mid 80s for the rest of the week - Best rain chances Wednesday and then this weekend FORECAST DETAILS Above normal temperatures persist on Tuesday with highs in the low to mid 80s inland and mid to upper 70s along the coast. A mid-level trough will amplify as it moves east across the SECONUS. Dry weather should prevail Tuesday with the system not making its way to ENC until Wednesday. With this disturbance expected to pass during Wednesday`s peak heating, showers and thunderstorms are possible across the area (30-55% chance). Although thunderstorms are possible, severe storms are less likely as very little shear is expected. Thursday has trended drier for showers and thunderstorms with PoPs below slight chance. Temperatures will remain high with upper 80s inland to mid to upper 70s along the coast. A little more moisture advection Saturday and Sunday with both the Bermuda High and an approaching frontal system from the west contributing to the increase in precipitable water. Increasing chances for rain and thunderstorms (35-40%) by Saturday afternoon and then lingering into Sunday as the front moves into the region. Temperatures slightly cooler both days but still well above normal for this time of year. && .AVIATION /14Z MONDAY THROUGH FRIDAY/... SHORT TERM /through 12z Tuesday/... As of 730 AM Monday... KEY MESSAGES - Sub VFR conditions possible (20-40% chance) late tonight FORECAST DETAILS A background southwesterly flow will continue over the next 24 hrs, but will be briefly interrupted by a southerly wind with the passage of the seabreeze. The TAFs reflect the expected timing of the seabreeze and associated wind shift. SHRA are not anticipated along the seabreeze today. Later this evening and into tonight, strengthening southwesterly low-level winds will lead to increasing low-level moisture advection. Guidance continue to hint at the potential for BR/FG or stratus development associated with the increase in moisture. However, there isn`t yet a strong signal in the guidance, so I`ve opted to keep sub-VFR conditions out of the TAFs for now. We`ll continue to re-evaluate this potential in later forecasts. LONG TERM /Tuesday through Friday/... As of 330 AM Monday...Pred VFR expected through the period. An approaching disturbance will bring some chances for precipitation Wednesday and Thursday afternoons. && .MARINE... SHORT TERM /through tonight/... As of 230 AM Monday... Relatively good boating conditions are expected through tonight. However, there are a couple of caveats worth mentioning. The diurnal increase in southwesterly winds associated with the developing thermal gradient may support a few gusts to 25kt for the coastal waters and the Pamlico Sound. The duration and magnitude forecast appears too marginal for any marine headlines, and I`ll continue to hold off on this for now. For the coastal waters, seas are forecast to hold in the 2-4 ft range through this evening. By tonight, long period swell arriving from the Northern Atlantic may lead to seas building to 3-5 ft, especially north of Cape Hatteras. LONG TERM /Tuesday through Friday/... As of 330 PM Sunday... KEY MESSAGES - Good boating conditions expected early this week FORECAST DETAILS High pressure will shift offshore early this week, with inland troughing developing in the lee of the Appalachians. Winds will steadily increase early next week with southwesterly flow of 10-20kt common. Seas of 3-5 ft will be common through early next week, setting up good boating conditions for several days. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...RM/MS SHORT TERM...RM LONG TERM...OJC AVIATION...RM/OJC MARINE...RM/OJC