Area Forecast Discussion
Issued by NWS Sterling, VA

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000 FXUS61 KLWX 241844 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 244 PM EDT Mon Jul 24 2017 .SYNOPSIS... A cold front will pass through the area this evening. High pressure will build into the Mid Atlantic Tuesday before moving offshore Wednesday. Another cold front will approach the area Thursday before passing through Friday into Friday night. High pressure is expected to return for the weekend. && .NEAR TERM /TONIGHT/... A thin line of storms has developed over PA into northern WV. This could have some impact in our forecast area, but the bulk of the energy should stay to our north. Have scattered/isolated PoPs in the forecast progressing from west to east during the late afternoon/evening. If there is a threat with these in our area it will be gusty winds. Afterwards some pretty nice weather for late July - the climatologically hottest part of the year. Dewpoints will drop into the lower to mid 60s by sunrise. Skies will be mostly clear by morning. Lows west of I-95 will be in the mid to upper 60s, lower 70s east. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... This will lead into a Tuesday with plenty of sunshine, dewpoints in the lower 60s, and air temperatures reaching the lower to mid 80s. PLeasant weather continues Tuesday night with lows in the mid 60s. Wednesday will see moisture begin to creep back into the Mid Atlantic as high pressure moves offshore. Highs will reach the lower to mid 80s. And with the return moisture lows will not be as cool, falling to the upper 60s/lower 70s. && .LONG TERM /THURSDAY THROUGH SUNDAY/... Warm front lifts back north through the area early Thursday, which will bring a return to the heat and highs climb back near 90F and dewpoints rise back into the 70s. Increasing chances for showers and thunderstorms late Thursday into Friday as cold front and its associated upper-level trough approach and then cross the area. High pressure builds into the area behind the front for the weekend into early next week. Though, low pressure developing along the front to our south could bring some precipitation back into SE portions of the area Sunday. However, that is not the favored solution at this point. Otherwise, remaining dry with highs in the M80s and dewpoints in the 60s. && .AVIATION /18Z MONDAY THROUGH SATURDAY/... VFR conditions tonight through Wednesday. Only threat is scattered thunderstorms this evening at all TAF sites except CHO. Showers and thunderstorms with brief flight restrictions are possible ahead of a cold front mainly late Thursday into Friday. Improving conditions into the weekend as high pressure builds into the area. && .MARINE... Winds expected to remain below SCA levels through Wednesday. This evening isolated thunderstorms may impact the Maryland section of the Bay and the Tidal Potomac. A cold front will approach the waters Thursday into Thursday night before passing through Friday. Showers and thunderstorms are possible ahead of the front...especially late Thursday into Friday. A Small Craft Advisory may be needed for portions of the waters Thursday and Friday. Improving conditions into the weekend as high pressure builds into the area. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && $$ PRODUCTS...WOODY!/MSE is the U.S. government's official web portal to all federal, state and local government web resources and services.