Weather Alert WatchOfficial-source alert index
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Ended official alertUpdated

Severe Thunderstorm Warning for Frederick, MD; Washington, MD

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 438 PM EDT, severe thunderstorms were located along a line extending from near Walkersville to Braddock Heights to near Brunswick, moving east at 25 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This...

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building.

Read official NWS bulletin

Full official description

Bulletin details

At 438 PM EDT, severe thunderstorms were located along a line extending from near Walkersville to Braddock Heights to near Brunswick, moving east at 25 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. Locations impacted include... Brunswick, Braddock Heights, Jefferson, Rosemont, Rohrersville, Burkittsville, Gapland, Brownsville, Antietam, Clifton, Arnoldtown, Knoxville, Petersville, Bolivar, Pleasantville, and Middletown In Frederick Md.

Lifecycle record

Official revisions

4 captured
  1. Update

    Severe Thunderstorm Warning issued July 28 at 4:38PM EDT until July 28 at 4:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  2. Update

    Severe Thunderstorm Warning issued July 28 at 4:25PM EDT until July 28 at 4:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  3. Update

    Severe Thunderstorm Warning issued July 28 at 4:07PM EDT until July 28 at 4:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  4. Alert

    Severe Thunderstorm Warning issued July 28 at 3:59PM EDT until July 28 at 4:45PM EDT by NWS Baltimore MD/Washington DC

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Baltimore MD/Washington DC. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections