Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 81, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 11, 2017, 3:00 PM EDT for 4 counties in New Jersey. It was in force for 45 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 11, 2017, 3:00 PM EDT (19:00 UTC)
- Expired
- Jul 11, 2017, 3:45 PM EDT
- In force
- 45 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 19:04 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.0 hours before the alert went out and 169 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
- 584 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted.
318
WUUS51 KPHI 111900
SVRPHI
NJC001-011-015-033-111945-
/O.NEW.KPHI.SV.W.0081.170711T1900Z-170711T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
300 PM EDT TUE JUL 11 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Atlantic County in southern New Jersey...
Northeastern Cumberland County in southern New Jersey...
Southeastern Salem County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
* Until 345 PM EDT
* At 300 PM EDT, a severe thunderstorm was located near Rosenhayn, or
near Millville, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
* Locations impacted include...
Vineland, Millville, Cumberland, Buena, Estell Manor, Dorothy,
Mizpah, South Vineland, Rosenhayn, Fairton and Folsom.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3934 7517 3948 7522 3958 7484 3937 7478
TIME...MOT...LOC 1900Z 260DEG 21KT 3943 7512
HAIL...1.00IN
WIND...60MPH
$$
MPS2 follow-up statements
816
WWUS51 KPHI 111925
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
325 PM EDT TUE JUL 11 2017
NJC015-033-111935-
/O.CAN.KPHI.SV.W.0081.000000T0000Z-170711T1945Z/
Salem NJ-Gloucester NJ-
325 PM EDT TUE JUL 11 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SALEM AND
SOUTHEASTERN GLOUCESTER COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3936 7496 3950 7501 3958 7484 3937 7478
TIME...MOT...LOC 1925Z 264DEG 24KT 3946 7493
$$
NJC001-011-111945-
/O.CON.KPHI.SV.W.0081.000000T0000Z-170711T1945Z/
Atlantic NJ-Cumberland NJ-
325 PM EDT TUE JUL 11 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHWESTERN ATLANTIC AND NORTHEASTERN CUMBERLAND COUNTIES...
At 325 PM EDT, a severe thunderstorm was located near Vineland,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect damage to
trees and power lines.
Locations impacted include...
Vineland, Cumberland, Buena, Estell Manor, Dorothy, Mizpah and
Folsom.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3936 7496 3950 7501 3958 7484 3937 7478
TIME...MOT...LOC 1925Z 264DEG 24KT 3946 7493
HAIL...1.00IN
WIND...60MPH
$$
MPS792
WWUS51 KPHI 111935
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
335 PM EDT TUE JUL 11 2017
NJC001-011-111945-
/O.EXP.KPHI.SV.W.0081.000000T0000Z-170711T1945Z/
Atlantic NJ-Cumberland NJ-
335 PM EDT TUE JUL 11 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ATLANTIC AND
NORTHEASTERN CUMBERLAND COUNTIES WILL EXPIRE AT 345 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
LAT...LON 3936 7496 3950 7501 3958 7484 3937 7478
TIME...MOT...LOC 1935Z 260DEG 21KT 3947 7487
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 2:52 PM EDT | Excessive Heat Watch | PHI | Burlington, Camden, Gloucester, Mercer | 19 hr |
| Jul 11, 2:53 PM EDT | Special Weather Statement | PHI | Cumberland | 37 min |
| Jul 11, 3:21 PM EDT | Special Weather Statement | PHI | Ocean | 39 min |
| Jul 11, 3:29 PM EDT | Special Weather Statement | PHI | Ocean | 46 min |
| Jul 11, 3:31 PM EDT | Special Weather Statement | PHI | Atlantic | 44 min |
| Jul 11, 3:37 PM EDT | Special Weather Statement | PHI | Ocean | 23 min |
| Jul 11, 4:01 PM EDT | Special Weather Statement | PHI | Middlesex | 44 min |
| Jul 11, 4:05 PM EDT | Special Weather Statement | PHI | Mercer | 25 min |
| Jul 11, 4:11 PM EDT | Special Marine Warning | PHI | 49 min | |
| Jul 11, 4:20 PM EDT | Special Marine Warning | PHI | 40 min | |
| Jul 11, 4:27 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jul 11, 4:33 PM EDT | Special Weather Statement | PHI | Monmouth | 57 min |
| Jul 11, 4:57 PM EDT | Special Marine Warning | PHI | 63 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2017Every severe thunderstorm warning in 2017
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.