Area Forecast Discussion
Issued by NWS Sterling, VA

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000 FXUS61 KLWX 230121 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 921 PM EDT Mon Aug 22 2016 .SYNOPSIS... High pressure remains over the region through much of the week with a cold front moving through on Friday. High pressure returns for the weekend. && .NEAR TERM /THROUGH TONIGHT/... Broad high pressure will keep the region dry and quiet through tonight. Mid and high level clouds could move in second half of the night, impacting more the southern half of the CWA where temps will stay slightly warmer than the northern half under mostly clear skies. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... Transitory high pressure will be the focus for Tuesday and Wednesday. Expect benign conditions for the midweek. By Wednesday, we will begin to see return flow, so dewpoints (and temperatures) will start to creep upward by Wednesday. It will still be seasonably pleasant. && .LONG TERM /THURSDAY THROUGH MONDAY/... High pressure slides off the coast on Thursday as a cold front approaches Thursday night. Some showers could develop ahead of the front, mainly over our western counties. Main showers and thunderstorms activity expected Friday as cold front moves across our CWA. The front will slowly moves south Saturday into Sunday as high pressure builds in, bringing cooler and drier weather. Surface easterly flow could enhance some afternoon shower and thunderstorm activity on Sunday, mainly west of the Blue Ridge. Dry conditions expected on Monday as high pressures moves across the Mid-Atlantic and off the coast. High temperatures will be in the upper 80s and low 90s... with Friday having the highest heat indexes in the upper 90s. && .AVIATION /01Z TUESDAY THROUGH SATURDAY/... VFR through Thursday. Light winds less than 10 knots through Tuesday night, with winds southeast around 10 knots on Wednesday and Thursday. Showers and thunderstorms possible on Friday causing sub-VFR conditions. Mainly VFR conditions expected Saturday. && .MARINE... High pressure over the waters will keep sub-SCA conditions through Wednesday night. Sub-SCA conditions expected between Thursday and Sunday with wind gusts below 15 kt. Some showers and thunderstorms possible on Friday. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && $$ SYNOPSIS...Sears NEAR TERM...Sears/HTS SHORT TERM...HTS LONG TERM...IMR AVIATION...Sears/IMR/HTS MARINE...Sears/IMR/HTS is the U.S. government's official web portal to all federal, state and local government web resources and services.