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Active official alertUpdated

Severe Thunderstorm Warning for Lancaster, PA

Official alert fields

What you need to know

Applies to
Lancaster
Effective
Ends or expires
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 518 PM EDT, severe thunderstorms were located along a line extending from Adamstown to Honey Brook to Rock Springs, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... New Holland, Paradise, Reamstown,...

What the bulletin says to do

Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. Stay inside a well built structure and keep away from windows. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

Full official description

Bulletin details

At 518 PM EDT, severe thunderstorms were located along a line extending from Adamstown to Honey Brook to Rock Springs, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... New Holland, Paradise, Reamstown, Quarryville, Gap, Adamstown, Terre Hill, Wakefield, Churchtown, Bowmansville, Intercourse, and Christiana. This includes The Pennsylvania Turnpike from mile markers 285 to 295.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

5 captured
  1. Update

    Severe Thunderstorm Warning issued August 20 at 5:19PM EDT until August 20 at 5:30PM EDT by NWS State College PA

    Official revision
  2. Update

    Severe Thunderstorm Warning issued August 20 at 5:02PM EDT until August 20 at 5:30PM EDT by NWS State College PA

    Official revision
  3. Update

    Severe Thunderstorm Warning issued August 20 at 4:35PM EDT until August 20 at 5:30PM EDT by NWS State College PA

    Official revision
  4. Update

    Severe Thunderstorm Warning issued August 20 at 4:21PM EDT until August 20 at 5:30PM EDT by NWS State College PA

    Official revision
  5. Alert

    Severe Thunderstorm Warning issued August 20 at 4:12PM EDT until August 20 at 5:30PM EDT by NWS State College PA

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS State College PA. 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