Areas of Excessive Rainfall, Severe Thunderstorms, and Extreme Heat

Heavy to excessive rainfall is expected through tonight across portions of the central Plains. Areas of intense rainfall amounts could support increasing flooding concerns. Scattered severe thunderstorms are possible across parts of the central/southern Plains today and tonight, with large hail and damaging winds the main threats. Areas of extreme heat will impact parts of the West this week. Read More >

Latest Aviation Discussion:

.AVIATION /06Z MONDAY THROUGH FRIDAY/... Most guidance is in general agreement with low clouds banking up against/east of the Blue Ridge this morning from roughly daybreak through late morning or midday. Given the only recent increase in low-level moisture, I'm unsure ceilings will get quite as low as some of the more aggressive guidance like the NAMNest and GLAMP show, but generally speaking IFR seems likely for a time developing around 09z-10z around KCHO and spreading quickly NE. CIGs should lift/scatter by 14z-17z. A pop up shower or thunderstorm can't be ruled out this afternoon near KCHO. S/SE flow AOB 10 kts is expected. Low clouds and/or fog appear likely again late tonight into Tuesday morning, with a bit higher chances for PM TS mainly near KCHO and KMRB Tuesday afternoon. More numerous TS are possible Wednesday afternoon. Winds will be S/SW AOB 10 kts. With a frontal zone nearby, there will be a risk of daily afternoon/evening showers and thunderstorms Thu/Fri. Thus, some restrictions cannot be ruled out at times across all terminals. Gradients remain on the weaker side with mainly northwesterly winds for Thursday before turning more easterly by Friday. However, such winds will largely be dependent on the position of the front and other convective processes. AVIATION...BRO/DHOF Update as of: 200 AM EDT Mon Aug 11 2025

This discussion and more can be found in the Area Forecast Discussion.

Aviation Forecasts

The National Weather Service (NWS) Weather Forecast Office (WFO-LWX), in Sterling, VA has responsibility for six Terminal Aerodrome Forecasts or TAFs in Virginia, Maryland and the eastern West Virginia panhandle. Click on each map below to view the latest decoded TAF Note: maps are not for official aviation use. FAA VFR charts are available here.

REAGAN NATIONAL (DCA)

TERMINAL FORECAST (DCA)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

DCA TAF BOARD

DULLES (IAD)

TERMINAL FORECAST (IAD)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

IAD TAF BOARD

BALTIMORE (BWI)

TERMINAL FORECAST (BWI)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

BWI TAF BOARD

CHARLOTTESVILLE (CHO)

TERMINAL FORECAST (CHO)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

CHO TAF BOARD

MARTIN STATE (MTN)

TERMINAL FORECAST (MTN)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

MTN TAF BOARD

MARTINSBURG (MRB)

TERMINAL FORECAST (MRB)

24 HRS OF OBSERVATIONS

FAA DETAILS

TABULAR FORECAST

MRB TAF BOARD

Click here for the latest decoded METARs at all 6 WFO Sterling TAF sites

Center Weather Service Unit Products

The Leesburg VA Center Weather Service Unit (CWSU/ZDC) covers the NWS Sterling, VA County Warning Area. Use the buttons on the map or....CLICK HERE to view ZDC's web site. For complete AVIATION WEATHER CENTER products click here.

Interactive Aviation Map (mouse over & CLICK for Observations)

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Decoded/Raw Text

24 hour decoded observations for Virginia Portion of our CWA...
24 hour decoded observations for Maryland Portion of our CWA...
24 hour decoded observations for West Virginia Portion of our CWA...

METAR Request form via the Aviation Weather Center. Raw and decoded observations.
Request past 36 raw observations for TAF SITES...
Most recent WFO Sterling (LWX) Rainfall, Snowfall, Wind Gusts
Hourly Weather Roundup for LWX CWA