Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 117, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2009, 7:38 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 67 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
- Jul 1, 2009, 7:38 PM EDT (23:38 UTC)
- Expired
- Jul 1, 2009, 8:45 PM EDT
- In force
- 67 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 12 km from the middle of the area, began a volume at 23:41 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
Brookhaven, NY (KOKX), launched 12:00Z, 11.6 hours before the alert went out and 155 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
- 578 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 012338 SVRPHI NJC025-029-020045- /O.NEW.KPHI.SV.W.0117.090701T2338Z-090702T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 738 PM EDT WED JUL 1 2009 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY... NORTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 845 PM EDT * AT 738 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 CEDAR GLEN LAKES...OR 13 MILES WEST OF TOMS RIVER...AND MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LAKEHURST AND 6 MILES SOUTHEAST OF CASSVILLE AROUND 755 PM EDT... JACKSON AROUND 805 PM EDT... PLEASANT PLAINS AROUND 810 PM EDT... LAKEWOOD AND LEISURE VILLAGE AROUND 820 PM EDT... BRICK TOWNSHIP AROUND 835 PM 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 GREATEST KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3991 7446 4009 7456 4028 7417 4003 7408 TIME...MOT...LOC 2338Z 243DEG 15KT 4000 7441 $$ TFG
1 follow-up statement
000 WWUS51 KPHI 012357 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 757 PM EDT WED JUL 1 2009 NJC025-029-020045- /O.CON.KPHI.SV.W.0117.000000T0000Z-090702T0045Z/ MONMOUTH NJ-OCEAN NJ- 757 PM EDT WED JUL 1 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT FOR NORTHERN OCEAN AND SOUTH CENTRAL MONMOUTH COUNTIES... AT 756 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKEHURST...OR 9 MILES NORTHWEST OF TOMS RIVER...MOVING NORTHEAST AT 15 MPH. DOPPLER RADAR IS SHOWING DOWNBURST WINDS WITH THIS THUNDERSTORM IN MANCHESTER TOWNSHIP. THE SEVERE THUNDERSTORM WILL BE NEAR... CEDAR GLEN WEST AND JACKSON BY 805 PM EDT... LAKEWOOD...LEISURE VILLAGE...LEISURE VILLAGE EAST AND HOLIDAY CITY-DOVER BY 820 PM EDT... BRICK TOWNSHIP BY 835 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3997 7440 4007 7446 4028 7417 4003 7408 TIME...MOT...LOC 2357Z 243DEG 15KT 4003 7432 $$ TFG
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 10:17 AM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 1, 10:34 AM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 1, 1:26 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 1, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 65 min |
| Jul 1, 7:05 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 55 min |
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.