Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 81, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2007, 8:01 PM EDT for Lehigh County, Northampton County, Pennsylvania. It was in force for 59 min. 1 report 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, 8:01 PM EDT (00:01 UTC)
- Expired
- Jun 19, 2007, 9:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Lehigh County, PA, Northampton County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 19, 8:55 PM EDT | TSTM WND DMG | Palmer Heights, PA | LARGE TREES DOWN |
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
Brookhaven, NY (KOKX), launched 00:00Z, 0.0 hours before the alert went out and 230 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1405 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 63 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 200003 SVRPHI PAC077-095-200100- /O.NEW.KPHI.SV.W.0081.070620T0001Z-070620T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 801 PM EDT TUE JUN 19 2007 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA... CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... * UNTIL 900 PM EDT * AT 800 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 8 MILES WEST OF SCHNECKSVILLE...OR ABOUT 15 MILES WEST OF ALLENTOWN...AND MOVING EAST NORTHEAST AT 25 TO 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SCHNECKSVILLE BY 815 PM EDT... NORTHAMPTON BY 830 PM EDT... BATH BY 845 PM EDT... BELFAST AND NAZARETH BY 855 PM EDT... WIND GAP AND 8 MILES NORTH OF EASTON BY 900 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 4069 7589 4056 7573 4067 7518 4089 7524 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 8:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Montgomery | 57 min |
| Jun 19, 8:49 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 56 min |
| Jun 19, 11:14 PM EDT | Flash Flood Warning | PHI | Berks | 4 hr |
| Jun 19, 11:34 PM EDT | Flash Flood Warning | PHI | Montgomery | 4 hr |
| Jun 19, 11:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 55 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.