Area Forecast Discussion
Issued by NWS Sterling, VA

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
-- Remove Highlighting --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KLWX 150014 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 814 PM EDT Fri Jul 14 2017 .SYNOPSIS...
-- Changed Discussion --
A cold front has moved through the area. Weak high pressure will influence the weather over the weekend, before another cold front moves in from the north and stalls over the area next week.
-- End Changed Discussion --
&& .NEAR TERM /TONIGHT/...
-- Changed Discussion --
Severe thunderstorm watch has been dropped as storms have moved onto eastern shore.
-- End Changed Discussion --
&& .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/... No changes made to the forecast this weekend at this time. It looks like the front will push far enough south on Saturday that the forecast area should be dry. While it will be cooler, temperatures will still remain near normal for this time of year, in the mid 80s to around 90. Low pressure developing along the front may nudge it back toward southern MD Saturday night, though have kept the forecast dry for now. Winds should back to the south again on Sunday as a shortwave trough aloft swings into the Great Lakes. It looks like the prior front and its deep moisture remain to the south, so potential for convection looks limited. If there is a chance, it would be over the mountains (closer to trough) and southern MD (should front try to pivot north due to the prior low pressure). Temperatures should rebound a few degrees over Saturday. && .LONG TERM /MONDAY THROUGH FRIDAY/... A persistent upper level trough of low pressure will be accompanied by a couple of disturbances from the west Monday through Wednesday to enhance the threat of showers and thunderstorms each period. High temperatures will be in the upper 80s to lower 90s. Weak high pressure will build in Wednesday night and Thursday. Drier air but warm temperatures will evolve. The next storm system will enter the region from the west Thursday night and Friday. There is a chance for showers and thunderstorms with this system and its associated cold front. High temperatures will be in the lower 90s. && .AVIATION /00Z SATURDAY THROUGH WEDNESDAY/... Conditions improving behind the thunderstorm line. No significant aviation impacts are expected Saturday and Sunday with weak high pressure behind the cold front. Local IFR conditions possible Monday through Tuesday night with showers and thunderstorms in the region. && .MARINE...
-- Changed Discussion --
Northwest flow will overspread the waters behind the cold front. Gusts still forecast fall just short of SCA criteria. Have removed that threat from the marine forecast. Winds eventually become southerly again by late Sunday as the weak high pressure moves offshore. No marine hazards expected through Tuesday night.
-- End Changed Discussion --
&& .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && $$ UPDATE...WOODY! PREVIOUS...HTS/KLW

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.