Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 175, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2007, 10:03 PM EDT for Warren County, New Jersey; Northampton County, Pennsylvania. It was in force for 57 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
- Aug 3, 2007, 10:03 PM EDT (02:03 UTC)
- Expired
- Aug 3, 2007, 11:00 PM EDT
- In force
- 57 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Warren County, NJ, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 02:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 10:50 PM EDT | TSTM WND DMG | 2 Wsw Beattyestown, NJ | TREES KNOCKED DOWN IN MANSFIELD TOWNSHIP. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 2.1 hours before the alert went out and 196 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
- 613 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1369 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 040204 SVRPHI NJC041-PAC095-040300- /O.NEW.KPHI.SV.W.0175.070804T0203Z-070804T0300Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1003 PM EDT FRI AUG 3 2007 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA... SOUTHERN WARREN COUNTY IN NORTHWEST NEW JERSEY... * UNTIL 1100 PM EDT * AT 1000 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 WIND GAP...OR ABOUT 14 MILES NORTH OF BETHLEHEM...AND MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... EAST BANGOR BY 1010 PM EDT... HARMONY BY 1025 PM EDT... ROXBURG AND BELVIDERE BY 1030 PM EDT... BRASS CASTLE AND OXFORD BY 1040 PM EDT... PLEASANT VALLEY AND WASHINGTON BY 1045 PM EDT... THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS LAT...LON 4091 7525 4078 7543 4062 7515 4081 7486 $$ RPW
1 follow-up statement
000 WWUS51 KPHI 040244 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1040 PM EDT FRI AUG 3 2007 PAC095-040250- /O.CAN.KPHI.SV.W.0175.000000T0000Z-070804T0300Z/ NORTHAMPTON PA- 1040 PM EDT FRI AUG 3 2007 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHAMPTON COUNTY IS CANCELLED... LAT...LON 4085 7506 4065 7520 4062 7515 4081 7486 $$ NJC041-040300- /O.CON.KPHI.SV.W.0175.000000T0000Z-070804T0300Z/ WARREN NJ- 1040 PM EDT FRI AUG 3 2007 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR SOUTHERN WARREN COUNTY... AT 1037 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A STRONG THUNDERSTORM NEAR ALPHA...OR ABOUT 14 MILES EAST OF BETHLEHEM...MOVING SOUTHEAST AT 20 MPH. WHILE THE INTENSITY TREND HAS BEEN DIMINISHING, THIS STORM MAY STILL PRODUCE SMALL HAIL AND GUSTY WINDS. THE SEVERE THUNDERSTORM WILL BE OVER... EXTREME SOUTHERN RURAL WARREN COUNTY AT 1100 PM EDT LAT...LON 4085 7506 4065 7520 4062 7515 4081 7486 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 8:44 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 76 min |
| Aug 3, 9:03 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 57 min |
| Aug 3, 9:59 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 46 min |
| Aug 3, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Somerset | 53 min |
| Aug 4, 4:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Aug 4, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 41 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2007Severe 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; radar from the NEXRAD Level II archive.