Area Forecast Discussion
Issued by NWS Sterling, VA

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449 FXUS61 KLWX 250033 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 833 PM EDT Fri Mar 24 2017 .SYNOPSIS... High pressure offshore will remain in control of the area through early next week. Low pressure will approach the area on Tuesday with a cold front moving through the area Tuesday night. High pressure builds again over the area for the middle part of next week. && .NEAR TERM /THROUGH SATURDAY/...
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High pressure will remain over the Atlantic through Saturday. A southerly flow around the high will bring much milder conditions compared to recent days. Min temps will be in the upper 40s and lower 50s across most locations tonight. A bkn deck of high clouds are expected well ahead of a storm system over the Midwest. Mid and high clouds will hang around for Saturday as well...but there will be some breaks of sunshine. A backdoor cold front will approach the area late in the day. A few showers may pop up ahead of the front Saturday afternoon...especially across northern and central portions of the CWA. Even across these areas...much of the time will be dry and any shower coverage will be widely scattered due to limited instability. Max temps Saturday will top off in the 70s across most locations.
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&& .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/... On Sunday, a backdoor cdfnt could push south into southern MD bringing low clouds and cooler temperatures due to a more onshore flow. Widespread showers will work into the area late Sun and Sun night in area of sfc convergence and warm air advection ahead of low pressure moving into the Great Lks. && .LONG TERM /MONDAY THROUGH FRIDAY/... Unsettled weather expected on Monday with return flow over our area and frontal boundary stalled north of us. PoPs may diminish Monday night before another front moves across our area Tuesday into Tuesday night. Showers and thunderstorms possible. Conditions starts drying on Wednesday and into Thursday as high pressure builds into the area. Warm front lifts north Thursday into Friday, increasing PoPs over our area. High temperatures during this period will be gradually decreasing from the 60s and 70s on Monday into the 50s and 60s on Friday. && .AVIATION /01Z SATURDAY THROUGH WEDNESDAY/...
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VFR conditions are expected through Saturday. Patchy fog may briefly reduce vsbys late tonight into early Saturday morning...but confidence is too low to mention in the forecast at this time. Unsettled weather on Monday as frontal boundary stalls north of our area. Brief period of dry conditions Monday night before another front approaches on Tuesday. Dry conditions return Wednesday. Sub-VFR periods possible Monday into Tuesday, then VFR Wednesday.
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&& .MARINE...
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Winds will continue to gradually diminish tonight. A Small Craft Advisory remains in effect for middle portions of the Bay and the lower Tidal Potomac River. Unsettled weather on Monday as frontal boundary stalls north of our area. Brief period of dry conditions Monday night before another front approaches on Tuesday. Dry conditions return Wednesday. Winds expected to be below the small craft advisory threshold during this period.
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&& .LWX WATCHES/WARNINGS/ADVISORIES...
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DC...None. MD...None. VA...None. WV...None. MARINE...Small Craft Advisory until midnight EDT tonight for ANZ532-533- 537-540-541. Small Craft Advisory until 6 AM EDT Saturday for ANZ534-543.
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&& $$ SYNOPSIS...LFR NEAR TERM...BJL/LFR SHORT TERM...LFR LONG TERM...IMR AVIATION...BJL/IMR/LFR MARINE...BJL/IMR/LFR

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