Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 230, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 11, 2009, 6:49 AM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 86 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, 6:49 AM EDT (10:49 UTC)
- Expired
- Sep 11, 2009, 8:15 AM EDT
- In force
- 86 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), 72 km from the middle of the area, began a volume at 10:51 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, 10.8 hours before the alert went out and 168 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 111049
SVRPHI
NJC001-009-011-111215-
/O.NEW.KPHI.SV.W.0230.090911T1049Z-090911T1215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
649 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...
NORTHERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
* UNTIL 815 AM EDT
* AT 644 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DEPICTED A
COMPLEX OF SEVERE THUNDERSTORMS ACROSS THE WARNED AREA. THESE STORMS
HAVE A HISTORY OF PRODUCING WIND DAMAGE. ALL ARE CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON EDT FRIDAY FOR DELAWARE
AND NEW JERSEY.
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.
&&
LAT...LON 3935 7441 3930 7455 3928 7455 3920 7464
3912 7470 3910 7470 3907 7474 3914 7490
3916 7492 3918 7500 3931 7531 3952 7500
3951 7498 3969 7474 3966 7468 3962 7466
3960 7460 3942 7432
TIME...MOT...LOC 1045Z 101DEG 17KT 3931 7474
$$
KRUZDLO1 follow-up statement
000
WWUS51 KPHI 111210
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
810 AM EDT FRI SEP 11 2009
NJC001-009-011-111218-
/O.EXP.KPHI.SV.W.0230.000000T0000Z-090911T1215Z/
CUMBERLAND NJ-CAPE MAY NJ-ATLANTIC NJ-
810 AM EDT FRI SEP 11 2009
...THE SEVERE THUNDERSTORM WARNING FOR ATLANTIC...NORTHERN CAPE MAY
AND CUMBERLAND COUNTIES WILL EXPIRE AT 815 AM EDT...
A TORNADO WATCH REMAINS IN EFFECT UNTIL NOON EDT FRIDAY FOR DELAWARE
AND NEW JERSEY.
LAT...LON 3935 7441 3930 7455 3928 7455 3920 7464
3912 7470 3910 7470 3907 7474 3914 7490
3916 7492 3918 7500 3931 7531 3952 7500
3951 7498 3969 7474 3966 7468 3962 7466
3960 7460 3942 7432
TIME...MOT...LOC 1208Z 101DEG 17KT 3938 7524
$$
KRUZDLOThe 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, 5:36 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 69 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, 6:59 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.