Area Forecast Discussion
Issued by NWS Wakefield, VA

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088 FXUS61 KAKQ 250921 AFDAKQ AREA FORECAST DISCUSSION National Weather Service Wakefield VA 521 AM EDT Sat May 25 2024 .SYNOPSIS... A surface trough will affect western portions of the region this afternoon into this evening. A warm front followed by a cold front will affect the area Sunday afternoon through Monday night. && .NEAR TERM /THROUGH TONIGHT/...
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As of 520 AM EDT Saturday... Early this morning, dry weather was across the region, but the sky ranged from mostly clear to cloudy due to areas of fog (some dense) and BKN/OVC stratus. Temps were ranging through the 60s into the lower 70s. Areas of fog (some dense) and BKN/OVC stratus will prevail in many locations until 12/13Z this morning. Will monitor observations in the next hour or two to see if dense fog becomes more widespread, and may need a Dense Fog Advisory in certain locations. Have issued a Dense Fog Advisory for the Lower MD and VA ern shore until 9 am this morning. Otherwise, the sky should become at least partly sunny from later this morning into early this evening. Warm and humid with highs ranging through the 80s (mid to upper 80s inland/Piedmont). A sfc trough will affect wrn portions of the region this aftn into this evening, possibly triggering isolated to sctd showers or tstms. No severe wx is expected. Any remnant showers or tstms will end by late this evening, with a mostly clear to partly cloudy sky tonight. Lows in the lower to mid 60s with at least some additional potential for fog.
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&& .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... As of 420 AM EDT Saturday... - Isolated to sctd showers/tstms will be possible Sunday afternoon into Monday morning, with more widespread showers and thunderstorms expected Monday into Monday evening with a cold front. A few storms could be strong to severe. A warm front followed by a cold front will affect the area Sun aftn through Mon night. The warm front will trigger isolated to sctd showers/tstms Sun aftn into Mon morning. Very warm and humid Sun with highs mainly in the mid to upper 80s. Anomalous upper troughing will then push a cold front toward and across the region Mon through Mon night. This favors higher coverage of showers and storms, with some potential for strong- severe storms if the FROPA timing is aligned with the daytime heating window. GFS/ECMWF both show surface-based CAPE increasing to 1500-2500 J/kg, combined with 30-40 kt of effective shear. Decent southerly flow and warm advection will push most areas into the mid to upper 80s again (lower 80s eastern shore) for highs. Highest coverage of convection shifts E/SE into the evening hours Mon, with continuing chances for strong/severe storms. Rain should be off the coast by early Tue morning. && .LONG TERM /TUESDAY THROUGH FRIDAY/... As of 425 AM EDT Saturday... Key Message: - Trending cooler and more comfortable for the middle and end of next week. A relatively deep trough will drop into and remain positioned over the ern CONUS for Wed through Fri. Except for a slight chance of a shower/tstm over nrn portions of the area Wed aftn into Wed evening, dry weather will prevail through the extended period. Highs on Tue will still be in the lower to mid 80s, with any appreciable "cold" advection holding off until Wed night. Highs on Wed will be in the upper 70s to lower 80s. Comfortable conditions under a partly to mostly sunny sky expected for Thu and Fri, with highs in the mid to upper 70s. Lows Tue night in the upper 50s to mid 60s, and in the 50s to near 60 Wed/Thu nights. && .AVIATION /09Z SATURDAY THROUGH WEDNESDAY/... As of 240 AM EDT Saturday... Main concern at all TAF sites through 12-13z this morning will be for IFR/LIFR CIGs and/or VSBYS from fog. Expect conditions to improve to VFR at all sites by 14/15z. Mainly VFR conditions will prevail from midday today into Sun morning. However, isolated shower/storm could affect RIC or possibly SBY later today into this evening, which may produce brief sub-VFR conditions. Outlook: Widely sctd to sctd showers/storms will then be possible later Sun into Mon evening. Outside of storms, expecting mainly VFR conditions. && .MARINE... As of 325 AM EDT Saturday... Key Messages: - Benign conditions expected on the waters through the weekend. - Chances for showers and storms (especially each afternoon and evening) through Memorial Day. Benign marine conditions across the local waters early this morning, with high pressure in place over the region. Winds are NNW 5-10 kt winds this morning with waves 1 ft or less and seas 1-2 ft. Winds remain light this morning, with afternoon seabreeze circulations likely to veer winds around to become onshore, with south to southeast winds returning in the later afternoon and evening/late night hours. This same summer-like pattern will repeat through the holiday weekend. There will also be the chance for scattered afternoon and evening showers and storms each day. A cold front approaches the area on Monday, associated with a deepening low pressure center over the Great Lakes. Have continued to keep the forecast below SCA criteria. Winds veer around to the NW behind the front on Tuesday into midweek. Some more widespread showers and storms will be possible on Memorial Day (Monday) ahead of the approaching cold front. E-SE swell behind that system that could briefly bring some 5 foot seas by Monday night. However, seas quickly subside as winds turn back offshore Tue-Wed. Low Rip Risk on area beaches through the weekend, with moderate rip risk for northern beaches on Monday with building seas and more of a shore normal component to wave energy. && .AKQ WATCHES/WARNINGS/ADVISORIES...
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MD...Dense Fog Advisory until 9 AM EDT this morning for MDZ021>025. NC...None. VA...Dense Fog Advisory until 9 AM EDT this morning for VAZ099-100. MARINE...None.
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&& $$ SYNOPSIS...TMG NEAR TERM...TMG SHORT TERM...SW/TMG LONG TERM...SW/TMG AVIATION...TMG MARINE...ERI/MAM