Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 140, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2011, 1:23 PM EDT for Cumberland County, Salem County, New Jersey; Kent County, New Castle County, Delaware. It was in force for 52 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 6, 2011, 1:23 PM EDT (17:23 UTC)
- Expired
- Jul 6, 2011, 2:15 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, New Castle County, DE, Cumberland County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 71 km from the middle of the area, began a volume at 17:27 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, 5.4 hours before the alert went out and 49 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
- -38 J/kg
- Mixed-layer LCL
- 1270 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
863
WUUS51 KPHI 061723
SVRPHI
DEC001-003-NJC011-033-061815-
/O.NEW.KPHI.SV.W.0140.110706T1723Z-110706T1815Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
123 PM EDT WED JUL 6 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL KENT COUNTY IN CENTRAL DELAWARE...
SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
NORTHWESTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
SOUTHWESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 215 PM EDT
* AT 120 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS TO 60
MPH. THIS STORM WAS LOCATED NEAR GREEN SPRING...OR 10 MILES
SOUTHEAST OF MIDDLETOWN...AND MOVING NORTHEAST AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
PORT PENN AND 6 MILES NORTHWEST OF NEWPORT MEADOWS AROUND 200 PM
EDT...
HANCOCKS BRIDGE AROUND 210 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 3960 7556 3947 7531 3938 7544 3943 7548
3946 7555 3950 7557 3952 7554 3957 7553
3958 7556 3946 7558 3942 7553 3934 7547
3925 7559 3933 7572
TIME...MOT...LOC 1723Z 215DEG 17KT 3933 7562
$$
TFG1 follow-up statement
695
WWUS51 KPHI 061754
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
154 PM EDT WED JUL 6 2011
DEC001-003-061803-
/O.CAN.KPHI.SV.W.0140.000000T0000Z-110706T1815Z/
KENT DE-NEW CASTLE DE-
154 PM EDT WED JUL 6 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN NEW CASTLE AND NORTH
CENTRAL KENT COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM IS CROSSING DELAWARE BAY.
LAT...LON 3952 7554 3956 7553 3957 7553 3959 7555
3959 7554 3947 7531 3938 7544 3943 7548
3946 7555 3950 7557
TIME...MOT...LOC 1753Z 224DEG 17KT 3941 7547
$$
NJC011-033-061815-
/O.CON.KPHI.SV.W.0140.000000T0000Z-110706T1815Z/
SALEM NJ-CUMBERLAND NJ-
154 PM EDT WED JUL 6 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR NORTHWESTERN CUMBERLAND AND SOUTHWESTERN SALEM COUNTIES...
AT 150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS
TO 60 MPH. THIS STORM WAS LOCATED NEAR NEWPORT MEADOWS...OR
13 MILES EAST OF MIDDLETOWN...MOVING NORTHEAST AT 20 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
NEWPORT MEADOWS BY 205 PM EDT...
HANCOCKS BRIDGE BY 210 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 3952 7554 3956 7553 3957 7553 3959 7555
3959 7554 3947 7531 3938 7544 3943 7548
3946 7555 3950 7557
TIME...MOT...LOC 1753Z 224DEG 17KT 3941 7547
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 12:34 PM EDT | Special Weather Statement | PHI | Atlantic | 56 min |
| Jul 6, 1:13 PM EDT | Special Marine Warning | PHI | 92 min | |
| Jul 6, 1:30 PM EDT | Special Marine Warning | PHI | 90 min | |
| Jul 6, 1:47 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth | 58 min |
| Jul 6, 2:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 46 min |
| Jul 6, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 62 min |
| Jul 6, 2:57 PM EDT | Special Marine Warning | PHI | 93 min | |
| Jul 6, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 67 min |
| Jul 6, 4:02 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth | 118 min |
| Jul 6, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 58 min |
| Jul 6, 5:00 PM EDT | Areal Flood Advisory | PHI | Burlington | 4 hr |
| Jul 6, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 42 min |
| Jul 6, 5:38 PM EDT | Special Marine Warning | PHI | 82 min | |
| Jul 6, 6:14 PM EDT | Special Weather Statement | PHI | Ocean | 91 min |
| Jul 6, 7:03 PM EDT | Flash Flood Warning | PHI | Burlington | 2 hr |
| Jul 6, 12:33 PM EDT | Special Weather Statement | PHI | Kent | 87 min |
| Jul 6, 1:14 PM EDT | Special Weather Statement | PHI | Sussex | 91 min |
| Jul 6, 2:41 PM EDT | Areal Flood Advisory | PHI | Sussex | 75 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Severe Thunderstorm Warnings in Delaware, 2011Every severe thunderstorm warning in 2011
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.