


Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
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580 FXUS62 KMHX 091909 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 309 PM EDT Sun Mar 9 2025 .SYNOPSIS... A wave of low pressure will ride along the stalled front passing south of the area Monday into Tuesday bringing unsettled weather and gusty winds to parts the area. High pressure then builds in from the west on Tuesday and Wednesday resulting in fair weather and a warming trend which should continue into next weekend. && .NEAR TERM /THROUGH TONIGHT/... As of 310 PM Sun...Latest analysis shows 1020mb high pressure centered over eastern NC this afternoon with stalled frontal boundary draped through the northern Gulf. Positively tilted trough and potent mid level closed low over the central US will pivot eastward into the TN Rvr Valley/Gulf Coast States overnight. This will result in some positive vorticity advection down stream of the trough and as a result a deepening surface low along the stalled frontal boundary over the Gulf states. Satellite shows mid and high clouds thinning across the northern 3/4 of the area this afternoon. However, another surge of moisture begins to overspread ENC overnight allowing high and mid clouds to move in from the south and west. Area will remain mostly dry overnight, with light rain chances increasing across the southern forecast area early Mon morning. Lows tonight will fall into the upper 30s to mid 40s...along the immediate coast may be a non-diurnal temp curve. && .SHORT TERM /MONDAY/... As of 310 PM Sun...Strengthening low pressure will move along a stalled front over coastal SC/GA Monday morning, pushing off the SE coast Mon afternoon and evening. Light to occasionally moderate rain will grad overspread the area from south to north through the day, with best chances south of Hwy 70 and east of Hwy 17. Breezy winds will develop along the immediate coast in the afternoon, gusting up to 30 mph. Cloud cover, light rain and onshore flow will keep temps in the mid 50s to 60 deg. && .LONG TERM /MONDAY NIGHT THROUGH SUNDAY/... As of 3 AM Sunday... Key Messages: - Low pressure passes off the coast Monday night into Tuesday bringing unsettled weather and strong northeast to north winds that may bring minor coastal impacts - Quieter weather expected for the remainder of the week Monday night through Tuesday...Models coming into better agreement with a low pressure area tracking to the south of the area early this week. A progressive upper low will track across the Southeast Monday while sfc low pressure deepens along a stalled frontal boundary off the Southeast coast. The low pressure system becomes vertically stacked as it pushes off the Southeast coast tracking south of the area while continuing to deepen. Showers will continue into Monday night before pulling offshore Tuesday morning. The airmass north of the low will be fairly stable and not expecting any convection except possibly over the coastal waters near the Gulf Stream. There will be a fairly tight gradient of precip amounts across the area with highest totals across southern sections. The greatest disparity among the models is with rainfall amounts and will follow WPC guidance closely which bring around 1" across southern coastal sections to less than a quarter inch across the northern tier. Wettest models show up to 2" across southern sections and many show very little rainfall across the northern tier. Deepening low pressure will also bring gusty winds around 20-35 mph late Monday into Tuesday with strongest winds across coastal sections south of Oregon Inlet. At this point, thinking is winds will remain below Wind Advisory criteria with probability only around 30% or less, highest across the Southern OBX. The strong winds and large seas may bring minor coastal flooding impacts to some beaches, see the Coastal Flooding section below for more details. Temps expected to warm to around 70 inland on Tuesday with greater sunshine, though northerly winds will keep temps on the OBX in the upper 50s to around 60. Wednesday through Saturday..Flat ridging aloft and sfc high pressure build into the area Wednesday followed by a fast moving shortwave with limited moisture moving across the area Thursday. As the shortwave approaches expect to see showers developing along the offshore coastal trough and a few showers may skirt the coast but otherwise guidance keeps the rest of the area dry. Upper ridging builds back into the area Friday, then slides offshore Saturday as a strong upper trough and attendant frontal system pushes into the Tennessee River Valley. Temps will be well above normal mid to late week with highs in the mid to upper 70s inland and 60s coast. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... SHORT TERM /through Monday/... As of 310 PM Sun...VFR conditions expected through early Monday morning, with conditions grad deteriorating through the day Monday. Sct to bkn mid clouds this afternoon, increasing overnight. Sub-VFR ceilings and light rain will grad overspread the terminals from south to north Monday, with greatest potential for IFR at EWN and OAJ. LONG TERM /Monday night through Friday/... As of 330 AM Sunday...Periods of sub-VFR conditions expected Monday night as low pressure passes south of the area bringing scattered to widespread showers across rtes. Highest probability of sub-VFR will be across southern rtes closer to the low pressure. Winds veer to the northeast Monday night and north of Tuesday with gusts to around 15-20 kt inland and 25-35 kt along the coast. VFR conditions return Tuesday as the low pulls away from the area and expect pred VFR Wednesday into Thursday. && .MARINE... SHORT TERM /through Monday/... As of 310 PM Sun...Conditions across the waters will deteriorate through the day Mon. Latest obs show variable winds 5-15 kt (strongest across the outer southern waters) and seas 3-5 ft. High pressure over the waters will grad slide offshore tonight as low pressure strengthens over the northern Gulf. The low will continue to deepen and move off the SE coast Mon and Mon afternoon. E-NE winds will increase through the day Mon, peaking at 20-30 kt over the southern and central coastal waters and 15-25 kt across the Pamlico Sound and inland rivers. Have issued Gale Warnings for the coastal waters south of Oregon Inlet and SCAs for the inland rivers and Pamlico Sound. Seas generally 2-4 ft overnight and early Mon morning, building to 6-9 ft Mon afternoon (highest south of Cape Hatteras). LONG TERM /Monday night through Friday/... As of 345 AM Sunday... Key Messages - Low pressure will pass just south of the waters Monday night into Tuesday bringing strong winds and large seas. Low pressure will be moving off the GA/SC coast Monday night and Tuesday. Seas will peak Monday night and Tuesday around 8-12 ft southern and central waters and 5-8 ft across the northern waters, then begin to subside late Tuesday and Tuesday night. High pressure builds in Wednesday bringing light winds with seas continuing to subside to 3-5 ft by late in the day. The high moves offshore Thursday bringing southerly winds around 10-15 kt with seas around 2-4 ft. && .TIDES/COASTAL FLOODING... As of 310 PM Sun...Models coming into better agreement with the low pressure system passing off the coast to the south Monday into Tuesday. Easterly winds begin to increase Monday as the low deepens as it pushes off the Southeast coast, then peaking out of the northeast Monday night, becoming north and gradually diminishing Tuesday as the low pushes east of the area. The strongest winds will occur over the coastal waters south of Cape Hatteras where Gale Force winds are expected but models are in good agreement that north of Oregon Inlet winds will remain below Gale Force, which typically only results in minor coastal flooding issues at worst. The greatest threat will be along oceanside Hatteras Island and Ocracoke Islands where the combination of onshore winds and breaking waves around 5-8 ft could produce minor beach and dune erosion and possibly minor ocean overwash at vulnerable locations. Minor beach erosion is possible south of Cape Hatteras to Cape Lookout where 4-7 ft breaking waves are expected but the winds will be parallel to the coast limiting the push of water to the dune line. Minor soundside water level rises will also be possible for areas adj to the southern Pamlico Sound, Neuse/Bay/Pamlico and Pungo Rvrs. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...Small Craft Advisory from 4 PM Monday to 4 PM EDT Tuesday for AMZ135. Small Craft Advisory from 4 PM Monday to 11 AM EDT Tuesday for AMZ136-137. Small Craft Advisory from midnight Monday night to 11 AM EDT Wednesday for AMZ150. Gale Warning from 4 PM Monday to 1 PM EDT Tuesday for AMZ152- 154. Gale Warning from 4 PM Monday to 11 AM EDT Tuesday for AMZ156- 158. && $$ SYNOPSIS...MHX NEAR TERM...CQD SHORT TERM...CQD LONG TERM...SK AVIATION...CQD/SK MARINE...CQD/SK TIDES/COASTAL FLOODING...MHX