Area Forecast Discussion
Issued by NWS Newport/Morehead, NC
Issued by NWS Newport/Morehead, NC
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888 FXUS62 KMHX 242335 AFDMHX Area Forecast Discussion National Weather Service Newport/Morehead City NC 635 PM EST Sun Nov 24 2024 .SYNOPSIS... High pressure builds in through Monday. A cold front with limited moisture moves through on Tuesday, followed by the potential for a stronger cold front on Friday. && .NEAR TERM /THROUGH MONDAY/... As of 630 PM Sunday...Flat ridging aloft and sfc high pressure build into the area tonight. Clear skies, aside from thin cirrus, and light winds have already allowed for some pronounced radiational cooling, necessitating some downward adjustments in hourly T trends. Expect low temps in the upper 30s to around 40 inland. A bit more mixing along the coast will keep temps a little warmer with lows in the mid 40s to around 50. && .SHORT TERM /MONDAY NIGHT THROUGH 6 PM MONDAY/... As of 2 PM Sunday...High pressure axis centered across the area Monday morning will slide offshore in the afternoon as a mid level shortwave and attendant cold front approach from the west. Mainly sunny skies will prevail with light southerly winds continuing to bring a warming trend. Low level thicknesses increase about 10m over today and expect highs in the upper 60s to around 70 inland and mid 60s coast. && .LONG TERM /MONDAY NIGHT THROUGH SUNDAY/... As of 2:30 AM Sunday... - Warming trend through Tuesday - Multiple fronts will bring rain chances Tuesday, Thursday, & Friday Broad upper ridging will continue overspreading the eastern U.S. on Monday while an upper low will dig across the northern plains. This trough will become negatively tilted as it moves across the Great Lakes region on Tuesday. The surface low associated with this trough will stay well to our north but its attendant cold front will drag across ENC on Tuesday afternoon. Zonal flow aloft and high pressure at the surface will briefly take over on Wednesday before a pre-frontal trough sets up on Thursday. The strongest front of the period will cross ENC late Thursday night/early Friday morning with cooler high pressure building in afterwards. Tuesday...Tuesday will host the warmest temps of the week ahead of a fairly moisture starved cold front. Most places will be around 70. The best chances for rain will be east of Highway 17 in the afternoon and late evening, but showers look light and scattered at best. Our next shot of cold air will be in this post-frontal air mass, which will send overnight lows back into the 30s across the coastal plain. Wednesday...High pressure will briefly resume on Wednesday. Temps will rebound to the low to mid 60s except along the NOBX where N to NE flow will keep temps a few degrees cooler in the upper 50s. Thursday - Friday...The pattern becomes more active with higher confidence of showers towards the end of the week. A pre- frontal trough will set up across ENC and PoPs will increase through Thursday ahead of the FROPA, which should cross ENC late Thursday night/early Friday morning. Models are currently painting a high shear/low CAPE environment, so this will continue to be monitored for severe potential. In the post- frontal air mass on Friday, highs will struggle to reach 60. Saturday...Conditions will be dry and brisk with highs in the 40s and lows in the 20s across the coastal plain (40s beaches). && .AVIATION /00Z MONDAY THROUGH FRIDAY/... SHORT TERM /through Monday/... As of 635 PM Sunday...High pressure will migrate across rtes through Monday bringing pred VFR conditions and light W to SW winds. Skies will be mostly clear with passing cirrus at times. Good radiational cooling conditions develop night with light winds and clear skies. With a touch more moisture in the low levels, shallow fog potential remains on the table for susceptible terminals although probability remains under 20%. Thin cirri expected tomorrow after sunrise with light southwesterly winds at around 5 kt. LONG TERM /Monday night through Friday/... As of 3:50 AM Sunday...Predominantly VFR conditions persist through mid-week with chances for sub-VFR conditions increasing towards late week. On Tuesday, winds will veer to the NW and increase to 10-15 kt as a cold front crosses the area. This cold front will introduce a slight chance of showers, which could result in some periods of sub-VFR ceilings. Winds will continue to turn to the NE on Wednesday and relax to around 5 kt. By Thursday, winds will return to the SW and increase to 10-15 kt as a pre-frontal trough sets up and reintroduce rain chances. Chances for rain will peak Thursday night with the passage of a cold front. && .MARINE... SHORT TERM /through Monday/... As of 215 PM Sunday...High pressure will migrate across the waters through the short term. SW winds around 15 kt or less into this evening will veer to Wly overnight as a trough pushes south to near the NC/VA border by around 12Z Monday. The trough lifts back north Monday morning with winds diminishing to around 10 kt or less, then backs to SW and increases to 10-15 kt late in the day as a cold front approaches from the west. Seas will be around 2-3 ft through the short term with the exception of the southern and central outer waters where to around 4 ft will possible tonight. LONG TERM /Monday night through Friday/... As of 3:50 AM Sunday...Conditions will flirt with SCA conditions on Tuesday due to a passing cold front, which will increase winds to 20-25 kt and 4-5 ft seas. Winds and seas will relax on Wednesday but rebound to SCA conditions on Thursday (mainly south of Cape Hatteras). A tightened gradient along a pre- frontal trough and ahead of an approaching cold front will support increasing winds through Thursday with winds peaking overnight at 20-25kt with gusts to around 30 kt. Seas will build to 5-7 ft. && .MHX WATCHES/WARNINGS/ADVISORIES... NC...None. MARINE...None. && $$ SYNOPSIS...MHX NEAR TERM...SK/MS SHORT TERM...SK LONG TERM...OJC AVIATION...MS/OJC MARINE...SK/OJC