Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 245, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 18, 2011, 5:20 PM EDT for Burlington County, Monmouth County, Ocean County, New Jersey. It was in force for 33 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
- Aug 18, 2011, 5:20 PM EDT (21:20 UTC)
- Expired
- Aug 18, 2011, 5:53 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 16 km from the middle of the area, began a volume at 21:21 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 |
|---|---|---|---|
| Aug 18, 5:20 PM EDT | HAIL 0.5 | Vincentown, NJ | |
| Aug 18, 5:30 PM EDT | HAIL 0.5 | Pemberton, NJ |
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, 9.3 hours before the alert went out and 146 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
- 780 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
249 WUUS51 KPHI 182120 SVRPHI NJC005-025-029-182215- /O.NEW.KPHI.SV.W.0245.110818T2120Z-110818T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 520 PM EDT THU AUG 18 2011 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY... CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... NORTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 615 PM EDT * AT 516 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LEISURETOWNE...OR 20 MILES SOUTH OF TRENTON...AND MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... JOBSTOWN AROUND 535 PM EDT... PRESIDENTIAL LAKES AROUND 540 PM EDT... BROWNS MILLS AND WRIGHTSTOWN AROUND 545 PM EDT... BROWNS MILLS AROUND 550 PM EDT... WOODRUFF...7 MILES SOUTH OF CREAM RIDGE...8 MILES NORTHWEST OF CEDAR GLEN LAKES AND 8 MILES NORTHWEST OF WHITING AROUND 615 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 4020 7449 3997 7428 3985 7470 3996 7482 TIME...MOT...LOC 2121Z 238DEG 12KT 3995 7469 $$ HEAVENER
2 follow-up statements
578 WWUS51 KPHI 182143 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 543 PM EDT THU AUG 18 2011 NJC005-025-029-182215- /O.CON.KPHI.SV.W.0245.000000T0000Z-110818T2215Z/ MONMOUTH NJ-OCEAN NJ-BURLINGTON NJ- 543 PM EDT THU AUG 18 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR NORTH CENTRAL BURLINGTON...NORTHWESTERN OCEAN AND SOUTHWESTERN MONMOUTH COUNTIES... AT 542 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR FORT DIX...OR 18 MILES SOUTHEAST OF TRENTON...MOVING NORTHEAST AT 15 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BROWNS MILLS AND COUNTRY LAKE ESTATES BY 550 PM EDT... MCGUIRE AFB BY 555 PM EDT... NEW EGYPT BY 610 PM EDT... WOODRUFF...6 MILES SOUTH OF CREAM RIDGE...9 MILES SOUTH OF IMLAYSTOWN AND 9 MILES WEST OF LAKEHURST BY 615 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY. && LAT...LON 4020 7449 4001 7432 3991 7459 4000 7475 TIME...MOT...LOC 2143Z 238DEG 12KT 3999 7461 $$ HEAVENER
696 WWUS51 KPHI 182153 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 553 PM EDT THU AUG 18 2011 NJC005-025-029-182203- /O.CAN.KPHI.SV.W.0245.000000T0000Z-110818T2215Z/ MONMOUTH NJ-OCEAN NJ-BURLINGTON NJ- 553 PM EDT THU AUG 18 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BURLINGTON... NORTHWESTERN OCEAN AND SOUTHWESTERN MONMOUTH COUNTIES IS CANCELLED... THE STORM THAT PROMPTED THE WARNING HAS GREATLY WEAKENED AND NEARLY DISSIPATED, THEREFORE A WARNING IS NO LONGER NEEDED. 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 4020 7449 4001 7432 3991 7459 4000 7475 TIME...MOT...LOC 2153Z 238DEG 12KT 4001 7457 $$ HEAVENER
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 4:53 AM EDT | Special Weather Statement | PHI | Morris, Somerset, Sussex | 52 min |
| Aug 18, 6:35 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Morris and 2 more | 3 hr |
| Aug 18, 7:29 AM EDT | Special Weather Statement | PHI | Camden, Gloucester | 61 min |
| Aug 18, 8:16 AM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester | 59 min |
| Aug 18, 8:57 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Monmouth and 1 more | 3 hr |
| Aug 18, 3:12 PM EDT | Flash Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 29 hr |
| Aug 18, 3:32 PM EDT | Special Weather Statement | PHI | Burlington | 58 min |
| Aug 18, 3:50 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 51 min |
| Aug 18, 4:17 PM EDT | Special Weather Statement | PHI | Monmouth | 58 min |
| Aug 18, 4:55 PM EDT | Special Weather Statement | PHI | Burlington | 65 min |
| Aug 18, 6:12 PM EDT | Special Weather Statement | PHI | Middlesex | 63 min |
| Aug 18, 6:33 PM EDT | Special Weather Statement | PHI | Mercer | 57 min |
| Aug 18, 7:34 PM EDT | Special Weather Statement | PHI | Monmouth | 56 min |
| Aug 18, 7:37 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 53 min |
| Aug 18, 7:43 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 62 min |
| Aug 18, 7:47 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Aug 18, 7:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 61 min |
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.