Area Forecast Discussion
Issued by NWS Sterling, VA

Current Version | Previous Version | Text Only | 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 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KLWX 241856 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 256 PM EDT Fri Mar 24 2017 .SYNOPSIS...
-- Changed Discussion --
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.
-- End Changed Discussion --
&& .NEAR TERM /THROUGH SATURDAY/...
-- Changed Discussion --
High pressure offshore will maintain its grip over the area through early next week supporting mild temperatures. A small chance of showers will exist along the Mason-Dixon line due to a proximity of a stationary bdry across Pennsylvania.
-- End Changed Discussion --
&& .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/...
-- Changed Discussion --
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.
-- End Changed Discussion --
&& .LONG TERM /MONDAY THROUGH FRIDAY/...
-- Changed Discussion --
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.
-- End Changed Discussion --
&& .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
-- Changed Discussion --
Brief MVFR fog early tomorrow, otherwise VFR. 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.
-- End Changed Discussion --
&& .MARINE...
-- Changed Discussion --
Small craft conditions through this evening. Winds begin to diminish overnight. 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.
-- End Changed Discussion --
&& .LWX WATCHES/WARNINGS/ADVISORIES...
-- Changed Discussion --
DC...None. MD...None. VA...None. WV...None. MARINE...Small Craft Advisory until midnight EDT tonight for ANZ530>533- 535>537-539>542. Small Craft Advisory until 6 PM EDT this evening for ANZ538. Small Craft Advisory until 6 AM EDT Saturday for ANZ534-543.
-- End Changed Discussion --
&& $$ SYNOPSIS...LFR NEAR TERM...LFR SHORT TERM...LFR LONG TERM...IMR AVIATION...IMR/LFR MARINE...IMR/LFR

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