Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 79, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2007, 7:34 PM EDT for Berks County, Pennsylvania. It was in force for 41 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 19, 2007, 7:34 PM EDT (23:34 UTC)
- Expired
- Jun 19, 2007, 8:15 PM EDT
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Berks County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 7:36 PM EDT | TSTM WND DMG | 8 Nw Reading, PA | TREES REPORTED DOWN IN CENTRE AND JEFFERSON TOWNSHIPS. |
| Jun 19, 7:45 PM EDT | TSTM WND DMG | 8 E Reading, PA | TREES REPORTED DOWN IN MANATAWNY, CENTRE TOWNSHIP, AND JEFFERSON TOWNSHIP. |
| Jun 19, 8:00 PM EDT | TSTM WND DMG | 8 E Reading, PA | TREES REPORTED DOWN IN MANATAWNY TOWNSHIP. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 19, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.6 hours before the alert went out and 109 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
- 290 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 192334 SVRPHI PAC011-200015- /O.NEW.KPHI.SV.W.0079.070619T2334Z-070620T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 734 PM EDT TUE JUN 19 2007 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BERKS COUNTY IN EASTERN PENNSYLVANIA... THIS INCLUDES THE CITY OF READING... * UNTIL 815 PM EDT * AT 730 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BERNVILLE...OR ABOUT 11 MILES NORTHWEST OF READING...AND MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LEESPORT BY 740 PM EDT... HAMBURG BY 750 PM EDT... LENHARTSVILLE AND FLEETWOOD BY 755 PM EDT... KUTZTOWN BY 805 PM EDT... THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAINFALL WHICH MAY RESULT IN LOCALIZED AREAS OF FLOODING. DO NOT DRIVE IN AREAS WHERE WATER IS CROSSING THE ROAD. LAT...LON 4047 7623 4015 7590 4044 7554 4068 7590 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 7:28 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 62 min |
| Jun 19, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 63 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.