Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 91, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 13, 2017, 9:07 PM EDT for 5 counties in New Jersey. It was in force for 53 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 13, 2017, 9:07 PM EDT (01:07 UTC)
- Expired
- Jul 13, 2017, 10:00 PM EDT
- In force
- 53 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 61 km from the middle of the area, began a volume at 01:07 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 00:00Z, 1.1 hours before the alert went out and 151 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
- 2637 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1330 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.4
The text
As transmitted.
879
WUUS51 KPHI 140107
SVRPHI
NJC001-009-011-015-033-140200-
/O.NEW.KPHI.SV.W.0091.170714T0107Z-170714T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
907 PM EDT THU JUL 13 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Atlantic County in southern New Jersey...
Cumberland County in southern New Jersey...
Southeastern Salem County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
Northern Cape May County in southern New Jersey...
* Until 1000 PM EDT
* At 907 PM EDT, a severe thunderstorm was located over Cedarville,
or near Bridgeton, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* This severe thunderstorm will be near,
Millville and Port Norris around 915 PM EDT.
Laurel Lake around 920 PM EDT.
Port Elizabeth, Bricksboro, South Vineland, Mauricetown and
Leesburg around 925 PM EDT.
Cumberland around 930 PM EDT.
Estell Manor around 935 PM EDT.
Dorothy around 940 PM EDT.
Mizpah around 945 PM EDT.
Corbin City around 955 PM EDT.
Other locations impacted by this severe thunderstorm include Folsom
and Collings Lakes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds...frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3915 7466 3916 7499 3919 7509 3917 7513
3917 7518 3926 7530 3945 7539 3961 7480
3917 7463
TIME...MOT...LOC 0107Z 260DEG 30KT 3934 7518
HAIL...<.75IN
WIND...60MPH
$$
Robertson2 follow-up statements
265
WWUS51 KPHI 140127
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
927 PM EDT THU JUL 13 2017
NJC015-033-140136-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-170714T0200Z/
Salem NJ-Gloucester NJ-
927 PM EDT THU JUL 13 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SALEM AND
SOUTHEASTERN GLOUCESTER COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3922 7502 3945 7508 3955 7478 3927 7466
3923 7466
TIME...MOT...LOC 0126Z 260DEG 30KT 3937 7497
$$
NJC001-009-011-140200-
/O.CON.KPHI.SV.W.0091.000000T0000Z-170714T0200Z/
Atlantic NJ-Cumberland NJ-Cape May NJ-
927 PM EDT THU JUL 13 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR SOUTHWESTERN ATLANTIC...EASTERN CUMBERLAND AND NORTHWESTERN CAPE
MAY COUNTIES...
At 926 PM EDT, a severe thunderstorm was located over Cumberland, or
near Millville, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
This severe storm will be near...
Estell Manor and Belleplain Forest around 935 PM EDT.
Dorothy and Mizpah around 940 PM EDT.
Corbin City around 955 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds...frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember...if you can hear thunder...you are close
enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3922 7502 3945 7508 3955 7478 3927 7466
3923 7466
TIME...MOT...LOC 0126Z 260DEG 30KT 3937 7497
HAIL...<.75IN
WIND...60MPH
$$
Robertson031
WWUS51 KPHI 140151
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
951 PM EDT THU JUL 13 2017
NJC001-009-011-140201-
/O.EXP.KPHI.SV.W.0091.000000T0000Z-170714T0200Z/
Atlantic NJ-Cumberland NJ-Cape May NJ-
951 PM EDT THU JUL 13 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ATLANTIC...
EASTERN CUMBERLAND AND NORTHWESTERN CAPE MAY COUNTIES WILL EXPIRE AT
1000 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire. However gusty winds
and heavy rain are still possible with this thunderstorm.
LAT...LON 3922 7502 3945 7508 3955 7478 3927 7466
3923 7466
TIME...MOT...LOC 0151Z 260DEG 30KT 3940 7472
$$
RobertsonThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 8:17 PM EDT | Special Weather Statement | PHI | Camden | 43 min |
| Jul 13, 8:26 PM EDT | Special Weather Statement | PHI | Cape May | 34 min |
| Jul 13, 8:27 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 4 hr |
| Jul 13, 8:49 PM EDT | Special Weather Statement | PHI | Cumberland | 26 min |
| Jul 13, 8:51 PM EDT | Special Weather Statement | PHI | Atlantic | 54 min |
| Jul 13, 9:46 PM EDT | Special Weather Statement | PHI | Atlantic | 14 min |
| Jul 13, 9:50 PM EDT | Special Marine Warning | PHI | 115 min | |
| Jul 13, 9:57 PM EDT | Special Weather Statement | PHI | Cape May | 33 min |
| Jul 13, 10:42 PM EDT | Special Marine Warning | PHI | 93 min | |
| Jul 14, 7:21 AM EDT | Areal Flood Advisory | PHI | Morris, Sussex, Warren | 3 hr |
| Jul 14, 11:40 AM EDT | Flash Flood Watch | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 11 hr |
| Jul 14, 2:57 PM EDT | Areal Flood Advisory | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more | 3 hr |
| Jul 14, 3:07 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jul 14, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 12 min |
| Jul 14, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 67 min |
| Jul 14, 3:25 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Ocean, Salem | 4 hr |
| Jul 14, 3:34 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Jul 14, 3:35 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester | 55 min |
| Jul 14, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 47 min |
| Jul 14, 3:47 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Ocean | 3 hr |
| Jul 14, 3:54 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 66 min |
| Jul 14, 4:12 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May | 63 min |
| Jul 14, 4:13 PM EDT | Flash Flood Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 3 hr |
| Jul 14, 4:18 PM EDT | Special Marine Warning | PHI | 57 min | |
| Jul 14, 4:25 PM EDT | Special Marine Warning | PHI | 95 min | |
| Jul 14, 4:44 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Gloucester, Salem | 61 min |
| Jul 14, 4:54 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 14, 5:47 PM EDT | Special Weather Statement | PHI | Cape May | 13 min |
| Jul 14, 5:53 PM EDT | Special Marine Warning | PHI | 52 min | |
| Jul 14, 6:32 PM EDT | Special Marine Warning | PHI | 88 min | |
| Jul 14, 7:08 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 14, 7:28 PM EDT | Areal Flood Advisory | PHI | Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem | 3 hr |
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.