Weather Alert WatchOfficial-source alert index
NWS feedSource freshLast successful check:
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 302 PM EDT, a severe thunderstorm with a history of producing wind damage was located near Wilson-Conococheague, or 10 miles west of Hagerstown, moving east at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure...

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 302 PM EDT, a severe thunderstorm with a history of producing wind damage was located near Wilson-Conococheague, or 10 miles west of Hagerstown, moving east at 15 mph. HAZARD...60 mph wind gusts. 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... Hagerstown, Thurmont, Municipal Stadium, Robinwood, Fountainhead-Orchard Hills, Smithsburg, Paramount-Long Meadow, Wilson-Conococheague, Williamsport, Mount Aetna, Long Meadow, Saint James, Halfway, Maugansville, Cavetown, Funkstown, Leitersburg, Clear Spring, Sabillasville, and Fort Ritchie.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued August 10 at 3:02PM EDT until August 10 at 3:15PM EDT by NWS Baltimore MD/Washington DC

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued August 10 at 2:50PM EDT until August 10 at 3:15PM 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