Area Forecast Discussion
Issued by NWS Newport/Morehead, NC

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902 FXUS62 KMHX 101137 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 737 AM EDT Mon Jun 10 2024 .SYNOPSIS... A cold front will push offshore early this morning an stall. A few showers may linger along southern coastal sections through tonight but otherwise expect dry conditions. Isolated to scattered showers and thunderstorms will be possible Tuesday afternoon. High pressure builds in mid to late week bringing dry and hot conditions prevailing across the region. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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As of 730 AM Monday...The cold front has pushes south to near Cape Lookout and the Crystal Coast this morning and will be south of the region in the next hour to two. Initial batch of showers has moved off the OBX but seeing another round of showers across SE NC beginning to move into Duplin and Onslow Counties which will continue to push across southern sections through the morning hours. Made minor adjustments to PoP and temp grids to capture latest trends, otherwise the forecast is in good shape. Previous discussion...An upper low will lift across the Canadian Maritimes today with a positively tilted upper trough extending across much of the eastern CONUS. Shortwave energy moving through the flow aloft is bringing favorable jet dynamics early this morning and seeing isolated to scattered showers across the region. An attendant cold is currently pushing across the area and will slide offshore around daybreak as will the bulk of the showers. However, channeled vorticity will continue to move through the flow aloft which may help trigger additional showers across southern sections late this morning and afternoon, mainly south of Highway 70. Rainfall amounts will be light with totals mainly less than a tenth of an inch. A cooler airmass builds in behind the front with highs mainly in the low to mid 80s.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH 6 AM TUESDAY/... As of 330 AM Monday...Additional shortwave energy will move through the upper trough tonight with a jet streak bringing improved upper dynamics and expect to see showers and storms reinvigorate off the coast. Some the showers may skirt coastal sections south of Oregon Inlet but expect the rest of the FA to remain dry. Winds will be light and could see patchy fog develop if skies sufficiently clear. Guidance is showing the best chances for fog to be south of the Pamlico River. Temps will be seasonably warm with lows in the low to mid 60s inland and around 70 along the coast. && .LONG TERM /TUESDAY THROUGH SUNDAY/... As of 3 AM Monday... Key Points: - Scattered showers and thunderstorms Tuesday, with highest chances along the sea breeze. - Increased fog potential early morning Wednesday - Dry end to work week as high pressure dominates. - Minor heat risk concerns Saturday - Cold front moves through in the weekend Tuesday... Sea breeze sets up Tuesday in conjunction with a positively tilted upper level trough moving through, providing additional forcing. Moisture is confined to the lower levels (700mb and below), but with the forcing and forecasted instability there is a chance (~40%) of scattered showers and thunderstorms, particularly along the sea breeze. Temps remain pleasant Tuesday, with highs in the mid 80s inland, low 80s for beaches and lower Tds ahead of the sea breeze due to a drier airmass. Tuesday night... Clear skies and calm winds bring fog concerns early morning Wednesday. While there is plenty of margin for error given it is 2 days away, early guidance is highlighting Duplin/Onslow/Jones counties with the greatest radiational fog threat. In addition, the sfc high located to our NW could bring 12- 18 hours of sustained NE`rly flow over NOBX, resulting in a potential for sea fog. Tuesday night into Wednesday. Wednesday to Sunday... The upper trough axis pushes offshore Wednesday with sfc high pressure building in and NW downslope mid level flow bringing drier conditions across the region. Kept out mentionable PoPs through Saturday morning with the expansive mid- level dry air set up over the region. A northern stream shortwave pushes across the Mid-West and into the Mid- Atlantic late in the week while and area of low pressure is progged to develop in the Gulf of Mexico. There is significant uncertainty whether the northern stream system will be able to tap into the Gulf moisture and advect it across the Southeast coast or whether upper ridging over the western Atlantic will shunt the moisture to our south and west. A warming trend is expected late week with highs in the mid to upper 80s Wednesday, steadily increasing through the week and reaching the low-mid 90s Saturday. Tds will also be increasing through the second half of the week as the high offshore helps funnel some moisture in from warm waters. This will make apparent temperatures in the upper 90s, near 100 degrees Saturday. High pressure builds in again Sunday. behind a cold front sweeping in from the north in the weekend. Rainfall associated with this front is highly uncertain, with much of the long term after Thursday dependent on how the gulf moisture interacts with the northern trough. && .AVIATION /12Z MONDAY THROUGH FRIDAY/...
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SHORT TERM /through Tonight/... As of 730 AM Monday...Pred VFR conditions expected through this evening. Isolated to scattered showers moving across southern rtes this morning may bring brief sub-VFR conditions if heavier showers develop but mainly expect them to remain offshore. Patchy fog will be possible late tonight with better chances south of the Pamlico River. LONG TERM /Tuesday through Friday/... As of 3 AM Monday...Sea breeze Tuesday will bring with it scattered showers/thunderstorms. This could bring a period of lower ceilings and reduced visibilities during the afternoon and evening Tuesday. High pressure dominating Wednesday-Thursday will bring a period of calm winds and clear/mostly clear skies overnight Tuesday night- Thursday night. This increases the potential for sub-VFR conditions due to fog, particularly during the early morning hours.
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&& .MARINE...
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SHORT TERM /Through Tonight/... As of 730 AM Monday...A cold front is pushing south of Cape Lookout at this hour. Seeing a brief northerly surge behind the front with gusts up to 25-30 kt immediately behind the front which is expected to persist for only an hour or two and quickly diminish to 10 kt or less by mid morning. In fact, the northern waters have already diminished to below 5 kt. Winds will veer to southerly and increase to around 10-15 kt mid to late afternoon. Winds will continue to veer this evening to SW to W around 10 kt or less after midnight. Seas expected to be around 2-3 ft but could see up to 4 ft early this morning. LONG TERM /Tuesday through Friday/... As of 3 AM Monday...Sub SCA conditions expected through the long term with variable winds around 15 kt or less and seas around 2-3 ft.
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&& .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...SK SHORT TERM...SK LONG TERM...RJ AVIATION...SK/RJ MARINE...SK/RJ