Alert archive / Pennsylvania / Tornado Warnings in 2000
Tornado Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Jun 18, 2000, 3:51 PM EDT for Delaware County, Pennsylvania. It was in force for 29 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 18, 2000, 3:51 PM EDT (19:51 UTC)
- Expired
- Jun 18, 2000, 4:20 PM EDT
- In force
- 29 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Delaware County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 4:05 PM EDT | Thunderstorm Wind 50 E | Newton Square, PA | |
| Jun 18, 4:25 PM EDT | Hail 0.75 | Sharon Hill, PA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.9 hours before the alert went out and 221 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2265 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
966 WFUS51 KPHI 181952 TORPHL PAC045-182020- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 351 PM EDT SUN JUN 18 2000 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * TORNADO WARNING FOR... DELAWARE COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 420 PM EDT. * AT 346 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION 7 MILES WEST OF LIMA... MOVING EAST AT 20 MPH. THIS STORM COULD PRODUCE A TORNADO AT ANY TIME. * THE TORNADO IS EXPECTED TO BE NEAR... LIMA AT 405 PM... NETHER PROVIDENCE TOWNSHIP AT 410 PM... BROOMALL...DREXEL HILL...FOLCROFT...SWARTHMORE AT 415 PM... FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. $$ MPD LAT...LON 3999 7543 3986 7559 3986 7527 3998 7530
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 4:15 PM EDT | Tornado Warning | PHI | Delaware, Philadelphia | 30 min |
Nearby
Tornado Warnings in Pennsylvania, 2000Every tornado warning in 2000Tornadoes in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.