National Weather Service United States Department of Commerce

Severe Thunderstorm Areas This Saturday; Excessive Heat in the Southern U.S.

Damaging thunderstorm winds and a few tornadoes with areas of excessive rainfall are possible today over parts of the lower Great Lakes to upper Ohio Valley and Mid-Atlantic, the Ozarks, and south-central High Plains. Excessive heat will continue over the southern U.S. this weekend before another round of heat arrives Monday through the central and southern U.S. spreading into the East by midweek. Read More >

Latest Aviation Discussion:
.AVIATION /19Z SATURDAY THROUGH THURSDAY/... Low/mid clouds are becoming a bit more scattered this afternoon amongst southerly winds gusting to around 20 kt at times. MRB does stand a chance of a thunderstorm in the vicinity through the late afternoon. Timing of thunderstorms into the metro terminals is more uncertain, especially given current upstream storm placement, but still looks likely to be after 00Z. Have placed a 4-hour VCTS group at all locations, although there is some chance the storms do not hold together. Some showers possibly linger through the night. MVFR conditions could develop at MRB for several hours around dawn, whether through patchy fog or lowered ceilings. Sunday brings another potential active weather day, all ahead of an approaching cold front. Right now the afternoon to early evening would be the most likely timing of thunderstorms. These storms appear more likely than Saturday and will pose a threat of strong wind gusts and heavy rain. Any convective activity should diminish by later in the evening with northwesterly flow ensuing in the wake. For Monday, VFR conditions are expected with northerly gusts up to 15 to 20 knots. VFR conditions are expected Tuesday into early Wednesday before isolated showers and thunderstorms return Wednesday afternoon and could lead to instances of sub-VFR conditions. Southeasterly winds on Tuesday will turn more southerly by Wednesday with afternoon gusts 10 to 15 knots at times. AVIATION...ADS/ADM Update as of: 351 PM EDT Sat Jun 29 2024

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 BOARDClick for latest Washington Reagan National TAF & Current Observation

 

 

 

 

 


DULLES (IAD)

  TERMINAL FORECAST (IAD)

  24 HRS OF OBSERVATIONS

  FAA DETAILS

  TABULAR FORECAST

  IAD TAF BOARDClick for latest Dulles VA TAF & Observation

 

 

 

 

 

 


BALTIMORE (BWI)

  TERMINAL FORECAST (BWI)

  24 HRS OF OBSERVATIONS

  FAA DETAILS

  TABULAR FORECAST

  BWI TAF BOARDClick for latest Baltimore-BWI TAF & Observation

 

 

 

 

 

 


CHARLOTTESVILLE (CHO)

  TERMINAL FORECAST (CHO)

  24 HRS OF OBSERVATIONS

  FAA DETAILS

  TABULAR FORECAST

  CHO TAF BOARD

Click for latest Charlottesville TAF & Observation

 

 

 

 

 

 


MARTIN STATE (MTN)

  TERMINAL FORECAST (MTN)

  24 HRS OF OBSERVATIONS

  FAA DETAILS

  TABULAR FORECAST

  MTN TAF BOARD

 

 

 

 

 

 

 

Click for latest Martin State TAF & Observation



MARTINSBURG (MRB)

  TERMINAL FORECAST (MRB)

  24 HRS OF OBSERVATIONS

  FAA DETAILS

  TABULAR FORECAST

  MRB TAF BOARD

 

 

 

 

 

 

 

Click for latest Martinsburg TAF & Observation


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)


See Complete MESONET MAP & OBS

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...

Surface Weather Maps

Wind Rose Data

  • Washington Reagan-National (DCA) wind rose data...
  • Dulles International (IAD) wind rose data...
  • Baltimore-Washington International (BWI) wind rose data...

Miscellaneous