Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 200, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 12, 2009, 3:01 PM EDT for Atlantic County, Cumberland County, New Jersey. It was in force for 59 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
- Aug 12, 2009, 3:01 PM EDT (19:01 UTC)
- Expired
- Aug 12, 2009, 4:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Cumberland County, NJ
The radar
The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 19:03 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, 7.0 hours before the alert went out and 119 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
- 402 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1048 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 121901
SVRPHI
NJC001-011-122000-
/O.NEW.KPHI.SV.W.0200.090812T1901Z-090812T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
301 PM EDT WED AUG 12 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
EAST CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
* UNTIL 400 PM EDT
* AT 259 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS
STORM WAS LOCATED NEAR ESTELL MANOR...OR 13 MILES EAST OF
VINELAND...AND MOVING EAST AT 5 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
MAYS LANDING AROUND 310 PM EDT...
ENGLISH CREEK AROUND 335 PM EDT...
NORTHFIELD...PLEASANTVILLE...6 MILES SOUTHWEST OF POMONA AND 6
MILES WEST OF ABSECON AROUND 400 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 3933 7453 3933 7506 3943 7510 3960 7459
3952 7446
TIME...MOT...LOC 1859Z 277DEG 7KT 3941 7476
$$
NIERENBERGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 12:04 PM EDT | Areal Flood Advisory | PHI | Mercer | 60 min |
| Aug 12, 12:47 PM EDT | Flash Flood Warning | PHI | Mercer | 3 hr |
| Aug 12, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 22 min |
| Aug 12, 2:55 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 50 min |
| Aug 12, 3:17 PM EDT | Flash Flood Warning | PHI | Atlantic, Cumberland | 4 hr |
| Aug 12, 3:29 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester | 60 min |
| Aug 12, 3:32 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Ocean | 118 min |
| Aug 12, 4:01 PM EDT | Flash Flood Warning | PHI | Atlantic, Cape May | 3 hr |
| Aug 12, 4:16 PM EDT | Flash Flood Warning | PHI | Cumberland, Salem | 6 hr |
| Aug 12, 4:55 PM EDT | Flash Flood Warning | PHI | Salem | 3 hr |
| Aug 12, 5:13 PM EDT | Areal Flood Advisory | PHI | Cape May, Cumberland | 2 hr |
| Aug 12, 6:03 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 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.