Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 180, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2011, 6:20 PM EDT for Atlantic County, Camden County, Gloucester County, New Jersey. It was in force for 55 min. 2 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
- Jul 19, 2011, 6:20 PM EDT (22:20 UTC)
- Expired
- Jul 19, 2011, 7:15 PM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Camden County, NJ, Gloucester County, NJ
The radar
The Philadelphia radar (KDIX), 55 km from the middle of the area, began a volume at 22:21 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 |
|---|---|---|---|
| Jul 19, 6:21 PM EDT | TSTM WND DMG | Pitman, NJ | NUMEROUS TREES WERE KNOCKED DOWN THROUGHOUT GLOUCESTER COUNTY. |
| Jul 19, 6:22 PM EDT | TSTM WND DMG | Gloucester Twp, NJ | A FEW TREES KNOCKE DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.3 hours before the alert went out and 105 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
- 1090 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
417
WUUS51 KPHI 192220
SVRPHI
NJC001-007-015-192315-
/O.NEW.KPHI.SV.W.0180.110719T2220Z-110719T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
620 PM EDT TUE JUL 19 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
SOUTHERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 715 PM EDT
* AT 616 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR SICKLERVILLE...OR
16 MILES SOUTH OF CAMDEN...AND MOVING SOUTH AT 10 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
SICKLERVILLE AROUND 625 PM EDT...
WILLIAMSTOWN AND CLAYTON AROUND 635 PM EDT...
MONROE TOWNSHIP AROUND 640 PM EDT...
FRANKLINVILLE AROUND 650 PM EDT...
VICTORY LAKES AROUND 700 PM EDT...
NEWFIELD...MALAGA AND BUENA AROUND 715 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 3936 7475 3950 7498 3966 7520 3966 7524
3975 7538 3987 7512 3972 7475 3966 7468
3962 7466 3961 7461 3958 7457
TIME...MOT...LOC 2220Z 339DEG 8KT 3971 7502
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 6:02 AM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Mercer, Salem | 13 hr |
| Jul 19, 2:13 PM EDT | Special Weather Statement | PHI | Cape May, Cumberland | 92 min |
| Jul 19, 2:29 PM EDT | Excessive Heat Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 5 days |
| Jul 19, 4:11 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jul 19, 4:25 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 80 min |
| Jul 19, 5:04 PM EDT | Areal Flood Advisory | PHI | Cape May | 3 hr |
| Jul 19, 5:52 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Salem | 53 min |
| Jul 19, 6:00 PM EDT | Special Weather Statement | PHI | Camden, Gloucester | 90 min |
| Jul 19, 6:28 PM EDT | Areal Flood Advisory | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 3 hr |
| Jul 19, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 52 min |
| Jul 19, 7:28 PM EDT | Areal Flood Advisory | PHI | Cumberland, Salem | 3 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011
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.