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Area Forecast Discussion
Issued by NWS Wakefield, VA
Issued by NWS Wakefield, VA
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369 FXUS61 KAKQ 060700 AFDAKQ AREA FORECAST DISCUSSION National Weather Service Wakefield VA 300 AM EDT Sat Jul 6 2024 .SYNOPSIS... High pressure lingers offshore with building heat and humidity today and Saturday. Daily chances of mainly afternoon and evening showers and thunderstorms continue into next week. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... As of 150 AM EDT Saturday... Key Messages: - Remaining cloudy, warm, and muggy overnight. High pressure continues to sit off the SE this evening while a weak stationary front is situated well the NW. Aloft, a ridge is in place from the Gulf coast to the S Mid-Atlantic with a trough dipping into the upper Midwest. A moist airmass remains in place with latest mesoanalysis showing PWATs of 2-2.2" across the area. Temps as of 150 AM ranged from the upper 70s to lower 80s. Clouds linger through the night and keep temps elevated with morning lows in the mid 70s W to 78-80F E. && .SHORT TERM /6 AM THIS MORNING THROUGH SUNDAY NIGHT/... As of 400 PM EDT Friday... Key Messages: - Very hot conditions continue into Saturday with heat indices of up to around 110F possible along portions of eastern Virginia and northeast North Carolina with 102-107F farther west and across the Eastern Shore. A Heat Advisory is in place for much of the forecast area. - Scattered storms are possible Saturday afternoon into Saturday night. Heavy rain will the main threat with stronger storms. The upper ridge breaks down some by Saturday allowing the upper trough and a weakening cold front to approach from the NW. Meanwhile, an upper level low lingers off the Southeast coast. Hot and humid weather continues for the FA, though not quite as hot as today. Highs will be in the mid 90s and dewpoints will stay in the mid-upper 70s for most of the area, low 70s for NW counties. Heat indices will rise to 105-108F for much of the area with perhaps a few locations near the coast reach 110F. Went ahead and issued a Heat Advisory for most of the FA, except for NW counties and the beaches. Ahead of the front, afternoon/evening storms with higher coverage than today are expected. Highest coverage is expected along the coast where PoPs will increase to 60-70% during the early evening hours with 30-55% elsewhere. With some stronger mid- level flow approaching from the NW, better storm organization may allow for some stronger storms. That being said, the more likely threat from showers/storms will be heavy rain given the very moist environments. PWs will once again be over 2". Thus, the WPC has placed SE portions of the area in a Slight Risk for Excessive Rain. QPF tomorrow looks like widespread values under 0.5" with localized areas of 1-2". The cold front approaches the area but stalls, allowing for PoPs to continue overnight Sat night and into Sun with the highest PoPs across SE VA/NE NC. Showers/storms gradually move offshore Sun night. With the convection allowing for rain cooled air, lows Sat night will be cooler than tonight in the lower 70s W to mid 70s along the E of I-95. Highs Sun in the upper 80s to lower 90s with lows Sun night in the low-mid 70s expected. Heat indices will be cooler on Sun (95-100F). && .LONG TERM /MONDAY THROUGH FRIDAY/... As of 400 PM EDT Friday... Key Message: - Near to slightly above normal temperatures and very humid conditions continue through next week. - Remaining a bit unsettled with a chance for mainly afternoon and evening showers and storms each day. Not as hot through the period, but high temps will still be slightly above normal ranging from the upper 80s to lower 90s (most in the lower 90s). Humidity sticks around with dew points in the 70s continuing through the week. Additionally, with lee troughs and/or weak frontal boundaries in the vicinity of the region, expect chances for mainly afternoon/evening showers/storms each day. Best chance for relatively widespread showers/storms looks to be late in the week when low pressure potentially impacts the region. Heat indices will mainly range from the mid 90s to around 100s through the week. Warm and muggy nights continue as well with lows ranging from the upper 60s to mid 70s. && .AVIATION /07Z SATURDAY THROUGH WEDNESDAY/... As of 145 AM EDT Saturday... Partly to mostly cloudy skies linger overnight with primarily VFR CIGs. However, some MVFR CIGs are possible across portions of SE VA and NE NC (ORF/PHF). CU redevelops Sat afternoon with scattered showers and storms developing across SE VA/NE NC and potentially extending up to the Eastern Shore as a cold front approaches and stalls. Have gone with VCTS for now at PHF/ORF/ECG and will refine timing in later TAFs. Winds remain SSW/S through the period (locally higher in showers/storms). As the front stalls inland and temps cool overnight, CIGs may lower to MVFR Sat night. Unsettled weather continues through the week with daily chances for showers/storms. && .MARINE... As of 300 AM EDT Saturday... Key messages: - Small Craft Advisories remain in effect for the coastal waters north of Cape Charles for seas up to 5 feet and southerly wind gusts up to 25 knots. - There is a moderate rip risk for all area beaches today. Early this morning, a weak cold front is located west of the local area with winds out of the S to SSW ranging from 10 to 15 knots with gusts around 20 knots. Seas are running around 4 to 5 feet north of Cape Charles and 3 to 4 feet south. Waves in the Bay are generally running around 2 feet. Similar to yesterday, winds will increase during the afternoon/evening hours with the highest winds over the coastal waters/out 20 nm (occasional gusts to ~25 knots). Scattered showers and thunderstorms will also fire up later this afternoon into the first part of the night, a few of which may require Special Marine Warnings due to strong wind gusts. The cold front will slowly approach tonight, before stalling/dissipating over or near the local waters on Sunday. Predominately sub-SCA winds are then expected Sunday through early next week, generally running around 10 to 15 knots out of the S or SE. The next potential for marginal SCAs will be Wednesday into Thursday as another cold front approaches from the west. In typical summer-time fashion, the front will likely dissipate over the local waters. There is a moderate rip current risk at all area beaches today. There is a moderate rip current risk for the northern beaches tomorrow, with a low risk south. && .CLIMATE... No record highs set today 7/6. See below for actual high temps: - RIC 99 (Record 102/2012) - ORF 97 (Record 98/2012) - SBY 94 (Record 102/2012) - ECG 94 (Record 100/2012) Record High Temperatures for Sat (July 6): - RIC 105/1977 - ORF 102/1881 - SBY 102/2010 - ECG 99/2012 Record High Minimum Temperatures Through Sat (July 5-6) 7/5 7/6 - RIC 79/2012 80/2012 - ORF 80/1999 80/1999 - SBY 81/2012 77/2012 - ECG 77/2018 78/1999 && .AKQ WATCHES/WARNINGS/ADVISORIES... MD...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for MDZ021>024. NC...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for NCZ012>017-030>032. VA...Heat Advisory from 11 AM this morning to 8 PM EDT this evening for VAZ062-064>069-075>090-092-093-095>098-511>525. MARINE...Small Craft Advisory until 1 AM EDT Sunday for ANZ650-652-654. && $$ SYNOPSIS...RMM NEAR TERM...RMM/SW SHORT TERM...AM/RMM LONG TERM...AM/RMM AVIATION...RMM MARINE...AJB CLIMATE...