Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 190, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 9, 2009, 7:21 PM EDT for 5 counties in 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
- Aug 9, 2009, 7:21 PM EDT (23:21 UTC)
- Expired
- Aug 9, 2009, 8:30 PM EDT
- In force
- 69 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 23:23 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 |
|---|---|---|---|
| Aug 9, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.4 hours before the alert went out and 171 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
- 721 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 814 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 092321
SVRPHI
NJC001-005-009-011-029-100030-
/O.NEW.KPHI.SV.W.0190.090809T2321Z-090810T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
721 PM EDT SUN AUG 9 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...
SOUTHEASTERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF CAPE MAY...
SOUTHEASTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 830 PM EDT
* AT 720 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 16 MILES NORTHWEST OF EGG HARBOR CITY TO 19 MILES WEST OF
ELDORA...OR ALONG A LINE EXTENDING FROM 17 MILES NORTHEAST OF
VINELAND TO 15 MILES SOUTHWEST OF MILLVILLE...AND MOVING SOUTHEAST
AT 40 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
MAYS LANDING AROUND 745 PM EDT...
ELDORA...BELLEPLAIN AND ESTELL MANOR AROUND 750 PM EDT...
GOSHEN...ENGLISH CREEK...DENNISVILLE AND WOODBINE AROUND 755 PM
EDT...
NORTHFIELD AND GREEN CREEK AROUND 800 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING WIDESPREAD WIND DAMAGE
DURING ITS HISTORY FROM NORTHERN PENNSYLVANIA INTO SALEM COUNTY
NEW JERSEY. THIS IS A DANGEROUS SITUATION. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM TREES AND
WINDOWS
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA. A SEVERE THUNDERSTORM WATCH ALSO
REMAINS IN EFFECT UNTIL 1100 PM EDT SUNDAY EVENING FOR SOUTHERN
DELAWARE AND NORTHEASTERN MARYLAND.
&&
LAT...LON 3950 7428 3953 7434 3953 7440 3949 7438
3949 7432 3945 7429 3935 7441 3930 7455
3920 7464 3907 7471 3902 7479 3899 7479
3893 7488 3892 7497 3899 7498 3915 7490
3920 7506 3975 7444 3966 7417 3964 7416
TIME...MOT...LOC 2320Z 334DEG 35KT 3969 7487 3924 7526
$$
TFG1 follow-up statement
000
WWUS51 KPHI 100014
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
814 PM EDT SUN AUG 9 2009
NJC005-011-029-100023-
/O.CAN.KPHI.SV.W.0190.000000T0000Z-090810T0030Z/
CUMBERLAND NJ-OCEAN NJ-BURLINGTON NJ-
814 PM EDT SUN AUG 9 2009
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BURLINGTON...
SOUTH CENTRAL OCEAN AND SOUTHEASTERN CUMBERLAND COUNTIES IS
CANCELLED...
THE SEVERE THUNDERSTORMS HAVE MOVED EAST OF THE AREA.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR SOUTHERN NEW JERSEY. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 1100 PM EDT SUNDAY EVENING FOR SOUTHERN
DELAWARE AND NORTHEASTERN MARYLAND.
LAT...LON 3935 7441 3930 7455 3927 7458 3912 7470
3907 7471 3902 7479 3899 7479 3893 7488
3893 7498 3899 7498 3909 7491 3916 7490
3921 7471 3946 7455 3947 7449 3944 7443
3944 7432
TIME...MOT...LOC 0013Z 334DEG 35KT 3942 7449 3903 7477
3894 7515
$$
NJC001-009-100030-
/O.CON.KPHI.SV.W.0190.000000T0000Z-090810T0030Z/
CAPE MAY NJ-ATLANTIC NJ-
814 PM EDT SUN AUG 9 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHEASTERN ATLANTIC AND CAPE MAY COUNTIES...
AT 811 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS TO 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ABSECON TO STONE HARBOR TO 11 MILES WEST OF CAPE MAY
POINT...OR ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST OF ATLANTIC
CITY TO 10 MILES NORTHEAST OF CAPE MAY TO 14 MILES WEST OF CAPE
MAY...MOVING SOUTHEAST AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
ATLANTIC CITY...BRIGANTINE...VENTNOR CITY AND CAPE MAY POINT BY 820
PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU SEE THREATENING WEATHER SEEK SHELTER INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS AND TREES
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR SOUTHERN NEW JERSEY. A SEVERE THUNDERSTORM WATCH
ALSO REMAINS IN EFFECT UNTIL 1100 PM EDT SUNDAY EVENING FOR SOUTHERN
DELAWARE AND NORTHEASTERN MARYLAND.
&&
LAT...LON 3935 7441 3930 7455 3927 7458 3912 7470
3907 7471 3902 7479 3899 7479 3893 7488
3893 7498 3899 7498 3909 7491 3916 7490
3921 7471 3946 7455 3947 7449 3944 7443
3944 7432
TIME...MOT...LOC 0013Z 334DEG 35KT 3942 7449 3903 7477
3894 7515
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 9:23 AM EDT | Areal Flood Advisory | PHI | Camden, Gloucester | 83 min |
| Aug 9, 10:33 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Ocean | 69 min |
| Aug 9, 11:57 AM EDT | Flash Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 11 hr |
| Aug 9, 1:56 PM EDT | Excessive Heat Warning | PHI | Burlington, Camden, Gloucester, Mercer | 30 hr |
| Aug 9, 1:56 PM EDT | Heat Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Hunterdon, Middlesex and 6 more | 30 hr |
| Aug 9, 6:10 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 80 min |
| Aug 9, 6:20 PM EDT | Special Marine Warning | PHI | 115 min | |
| Aug 9, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 72 min |
| Aug 9, 7:33 PM EDT | Special Marine Warning | PHI | 87 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.