Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 57, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 9, 2009, 8:43 AM EDT for 4 counties in New Jersey. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 9, 2009, 8:43 AM EDT (12:43 UTC)
- Expired
- Jun 9, 2009, 9:45 AM EDT
- In force
- 62 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ
The radar
The Philadelphia radar (KDIX), 33 km from the middle of the area, began a volume at 12:43 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.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 0.7 hours before the alert went out and 124 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
- 1272 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 804 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 108 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 091243 SVRPHI NJC001-005-007-015-091345- /O.NEW.KPHI.SV.W.0057.090609T1243Z-090609T1345Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 843 AM EDT TUE JUN 9 2009 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY... CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... SOUTHEASTERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY... EAST CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 945 AM EDT * AT 839 AM 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 WILLIAMSTOWN...OR 17 MILES SOUTHEAST OF CAMDEN...AND MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CHESILHURST AROUND 850 AM EDT... HAMMONTON AROUND 910 AM EDT... ATSION AROUND 915 AM EDT... SHAMONG AROUND 920 AM EDT... WHARTON STATE FOREST AND BATSTO AROUND 930 AM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3987 7445 3950 7459 3962 7508 3988 7491 TIME...MOT...LOC 1243Z 270DEG 18KT 3972 7494 $$ KRUZDLO
1 follow-up statement
000 WWUS51 KPHI 091340 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 940 AM EDT TUE JUN 9 2009 NJC001-005-007-015-091349- /O.EXP.KPHI.SV.W.0057.000000T0000Z-090609T1345Z/ CAMDEN NJ-GLOUCESTER NJ-ATLANTIC NJ-BURLINGTON NJ- 940 AM EDT TUE JUN 9 2009 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BURLINGTON... NORTHWESTERN ATLANTIC...EAST CENTRAL GLOUCESTER AND SOUTHEASTERN CAMDEN COUNTIES WILL EXPIRE AT 945 AM EDT... THE STORMS THAT PROMPTED THE WARNING HAVE NOW WEAKENED AND MOVED EAST OF THE AREA. LAT...LON 3987 7445 3950 7459 3962 7508 3988 7491 TIME...MOT...LOC 1339Z 270DEG 18KT 3972 7458 $$ AMC
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 12:48 AM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 42 min |
| Jun 9, 2:20 AM EDT | Areal Flood Advisory | PHI | Morris | 100 min |
| Jun 9, 4:17 AM EDT | Dense Fog Advisory | PHI | Atlantic, Burlington, Camden, Hunterdon, Mercer, Middlesex and 3 more | 5 hr |
| Jun 9, 8:00 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 60 min |
| Jun 9, 8:06 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 54 min |
| Jun 9, 8:20 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 3 hr |
| Jun 9, 8:30 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester, Salem | 60 min |
| Jun 9, 8:42 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester, Mercer, Middlesex and 4 more | 3 hr |
| Jun 9, 8:47 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 70 min |
| Jun 9, 9:09 AM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 3 hr |
| Jun 9, 9:21 AM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 9, 1:49 PM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more | 5 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.