Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 228, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 11, 2009, 5:36 AM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 69 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
- Sep 11, 2009, 5:36 AM EDT (09:36 UTC)
- Expired
- Sep 11, 2009, 6:45 AM EDT
- In force
- 69 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ
The radar
The Philadelphia radar (KDIX), 65 km from the middle of the area, began a volume at 09:36 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 11, 4:12 AM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 9.6 hours before the alert went out and 176 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 110936
SVRPHI
NJC001-009-011-111045-
/O.NEW.KPHI.SV.W.0228.090911T0936Z-090911T1045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
536 AM EDT FRI SEP 11 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF ATLANTIC CITY...
NORTHEASTERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
EAST CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF VINELAND...
* UNTIL 645 AM EDT
* AT 535 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR OFFSHORE NEAR
ATLANTIC CITY...MOVING NORTHWEST AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
MARMORA AND SOMERS POINT AROUND 540 AM EDT...
CORBIN CITY AROUND 545 AM EDT...
ENGLISH CREEK AROUND 550 AM EDT...
ESTELL MANOR AROUND 555 AM EDT...
MAYS LANDING AROUND 600 AM EDT...
MIZPAH AROUND 610 AM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
IN ADDITION TO DAMAGING WINDS...HEAVY RAINS WILL OCCUR WITH THESE
STORMS AND CAUSE LOW-LYING AND POOR DRAINAGE FLOODING.
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON EDT FRIDAY FOR DELAWARE
AND NEW JERSEY.
&&
LAT...LON 3933 7445 3929 7452 3930 7454 3928 7455
3925 7459 3919 7465 3944 7506 3967 7471
3946 7443 3946 7441 3942 7440 3940 7437
TIME...MOT...LOC 0935Z 147DEG 30KT 3925 7460
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 2:20 AM EDT | Special Marine Warning | PHI | 85 min | |
| Sep 11, 2:48 AM EDT | Severe Thunderstorm Warning | PHI | Cape May | 72 min |
| Sep 11, 3:06 AM EDT | Flash Flood Warning | PHI | Cape May | 4 hr |
| Sep 11, 3:07 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 2 more | 12 hr |
| Sep 11, 3:25 AM EDT | Special Marine Warning | PHI | 95 min | |
| Sep 11, 3:44 AM EDT | Special Marine Warning | PHI | 95 min | |
| Sep 11, 3:55 AM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 65 min |
| Sep 11, 4:55 AM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 65 min |
| Sep 11, 5:05 AM EDT | Special Marine Warning | PHI | 115 min | |
| Sep 11, 5:17 AM EDT | Special Marine Warning | PHI | 88 min | |
| Sep 11, 5:52 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 53 min |
| Sep 11, 6:12 AM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 2 hr |
| Sep 11, 6:39 AM EDT | Special Marine Warning | PHI | 96 min | |
| Sep 11, 6:49 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 86 min |
| Sep 11, 6:59 AM EDT | Flash Flood Warning | PHI | Cape May | 3 hr |
| Sep 11, 8:18 AM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 117 min |
| Sep 11, 8:31 AM EDT | Areal Flood Advisory | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 119 min |
| Sep 11, 8:46 AM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 39 min |
| Sep 11, 8:58 AM EDT | Coastal Flood Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 35 hr |
| Sep 11, 9:02 AM EDT | Wind Advisory | PHI | Monmouth, Ocean | 3 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.