339 
WHUS51 KLWX 042129
SMWLWX
ANZ535-536-042330-
/O.NEW.KLWX.MA.W.0112.260704T2129Z-260704T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Baltimore MD/Washington DC
529 PM EDT Sat Jul 4 2026

The National Weather Service in Sterling Virginia has issued a

* Special Marine Warning for...
  Tidal Potomac from Indian Head to Cobb Island MD...
  Tidal Potomac from Key Bridge to Indian Head MD...

* Until 730 PM EDT.

* At 529 PM EDT, a strong thunderstorm was located over Potomac
  Creek, moving northeast at 30 knots.

  HAZARD...Wind gusts 34 knots or greater.

  SOURCE...Radar indicated.

  IMPACT...Boaters in small craft could be thrown overboard by 
           suddenly higher winds and waves capsizing their vessel.

* Locations impacted include...
  Fort Washington, Tidal Basin, Reagan National Airport, Gunston
  Hall, Mason Neck State Park, Woodrow Wilson Bridge, Indian Head,
  Key Bridge, Fort Hunt, National Harbor, and Alexandria.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

Frequent lightning is occurring with this storm. If caught on the
open water stay below deck if possible, keep away from ungrounded
metal objects.

&&

LAT...LON 3867 7724 3866 7722 3866 7719 3864 7720
      3864 7719 3865 7716 3870 7720 3873 7706
      3890 7708 3891 7705 3885 7700 3870 7700
      3867 7708 3862 7709 3858 7714 3865 7725
TIME...MOT...LOC 2129Z 209DEG 32KT 3832 7731 

HAIL...0.00IN
WIND...>34KTS

$$

Belak


974 
WHUS53 KDTX 042131
SMWDTX
LCZ422-423-460-042245-
/O.NEW.KDTX.MA.W.0052.260704T2131Z-260704T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Detroit/Pontiac MI
531 PM EDT Sat Jul 4 2026

The National Weather Service in Detroit/Pontiac has issued a

* Special Marine Warning for...
  Detroit River...
  Lake St. Clair Open Lake (U.S. Portion)...
  St. Clair River...

* Until 645 PM EDT.

* At 530 PM EDT, showers were located along a line extending from 8
  nm northwest of St. Clair to near New Baltimore to 16 nm northwest
  of St. Clair Shores, moving southeast at 20 knots.

  HAZARD...Wind gusts 34 knots or greater.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Showers will be near...
  New Baltimore around 535 PM EDT.
  St. Clair around 540 PM EDT.
  Algonac, Mt Clemens Harbor Of Refuge, Metro Beach Metropark 
  Marina, and St. Clair Shores around 545 PM EDT.
  St Clair Flats Old Channel Light around 555 PM EDT.
  Grosse Pointe around 610 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 4261 8252 4255 8259 4254 8266 4237 8283
      4231 8309 4235 8306 4239 8295 4254 8291
      4259 8285 4266 8284 4272 8269 4270 8261
      4269 8260 4265 8259 4265 8255 4276 8251
      4289 8251 4288 8247 4276 8247
TIME...MOT...LOC 2130Z 306DEG 20KT 4288 8266 4275 8271 4260 8323 

HAIL...0.00IN
WIND...>34KTS

$$

AM