Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 54, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2001, 3:00 PM EDT for Berks County, Pennsylvania. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 22, 2001, 3:00 PM EDT (19:00 UTC)
- Expired
- Jun 22, 2001, 3:45 PM EDT
- In force
- 45 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Berks County, PA
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 22, 2:00 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.0 hours before the alert went out and 106 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
- 578 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 563 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
332 WUUS51 KPHI 221903 SVRPHI PAC011-221945- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 300 PM EDT FRI JUN 22 2001 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BERKS COUNTY IN EASTERN PENNSYLVANIA. * UNTIL 345 PM EDT. * AT 255 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 10 MILES SOUTHWEST OF READING...MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... READING AT 330 PM. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM FRIDAY EVENING FOR SOUTHEASTERN PENNSYLVANIA. $$ LAT...LON 4026 7605 4019 7594 4033 7575 4043 7594
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 12:59 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 22, 1:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 30 min |
| Jun 22, 1:53 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 37 min |
| Jun 22, 2:07 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh | 23 min |
| Jun 22, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 33 min |
| Jun 22, 2:43 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 47 min |
| Jun 22, 3:21 PM EDT | Flash Flood Warning | PHI | Berks | 3 hr |
| Jun 22, 3:54 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 3 hr |
| Jun 22, 6:08 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Jun 22, 6:48 PM EDT | Flash Flood Warning | PHI | Chester | 117 min |
| Jun 22, 6:58 PM EDT | Flash Flood Warning | PHI | Lehigh | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.