Alert archive / New Jersey / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 123, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 24, 2017, 12:04 AM EDT for 4 counties in New Jersey. It was in force for 41 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 24, 2017, 12:04 AM EDT (04:04 UTC)
- Expired
- Jul 24, 2017, 12:45 AM EDT
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 04:06 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, 4.1 hours before the alert went out and 180 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
- 771 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 995 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.7
The text
As transmitted.
230
WUUS51 KPHI 240404
SVRPHI
NJC001-011-015-033-240445-
/O.NEW.KPHI.SV.W.0123.170724T0404Z-170724T0445Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1204 AM EDT MON JUL 24 2017
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
West central Atlantic County in southern New Jersey...
Northeastern Cumberland County in southern New Jersey...
East central Salem County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
* Until 1245 AM EDT
* At 1203 AM EDT, a severe thunderstorm was located over Seabrook
Farms, or near Bridgeton, moving northeast at 10 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Vineland, Bridgeton, Glassboro, Clayton, Buena, Newfield, Elmer,
Franklinville, Olivet, Malaga, Seabrook Farms, Rosenhayn and
Centerton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3943 7523 3951 7530 3973 7508 3958 7490
3949 7486
TIME...MOT...LOC 0403Z 245DEG 9KT 3947 7521
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JRK2 follow-up statements
657
WWUS51 KPHI 240427
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1227 AM EDT MON JUL 24 2017
NJC001-011-015-033-240445-
/O.CON.KPHI.SV.W.0123.000000T0000Z-170724T0445Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Gloucester NJ-
1227 AM EDT MON JUL 24 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT
FOR WEST CENTRAL ATLANTIC...NORTHEASTERN CUMBERLAND...EAST CENTRAL
SALEM AND SOUTHEASTERN GLOUCESTER COUNTIES...
At 1227 AM EDT, a severe thunderstorm was located over South
Vineland, or near Vineland, moving east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
Locations impacted include...
Vineland, Buena, Newfield, Malaga, Rosenhayn, Olivet and Centerton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3944 7515 3952 7520 3966 7499 3958 7490
3949 7486
TIME...MOT...LOC 0427Z 249DEG 16KT 3948 7505
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
JRK160
WWUS51 KPHI 240436
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1236 AM EDT MON JUL 24 2017
NJC001-011-015-033-240446-
/O.EXP.KPHI.SV.W.0123.000000T0000Z-170724T0445Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Gloucester NJ-
1236 AM EDT MON JUL 24 2017
...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ATLANTIC...
NORTHEASTERN CUMBERLAND...EAST CENTRAL SALEM AND SOUTHEASTERN
GLOUCESTER COUNTIES WILL EXPIRE AT 1245 AM 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 heavy rain
is still possible with this thunderstorm.
LAT...LON 3944 7515 3952 7520 3966 7499 3958 7490
3949 7486
TIME...MOT...LOC 0436Z 245DEG 9KT 3949 7503
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 9:39 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 4 hr |
| Jul 23, 10:18 PM EDT | Flash Flood Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 8 hr |
| Jul 23, 10:23 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 52 min |
| Jul 23, 10:54 PM EDT | Special Weather Statement | PHI | Gloucester | 51 min |
| Jul 23, 11:38 PM EDT | Tornado Warning | PHI | Atlantic, Cape May | 37 min |
| Jul 23, 11:41 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jul 23, 11:43 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean, Salem | 6 hr |
| Jul 23, 11:50 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Monmouth, Ocean | 6 hr |
| Jul 24, 12:35 AM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 24, 12:56 AM EDT | Special Weather Statement | PHI | Atlantic | 34 min |
| Jul 24, 1:23 AM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 24, 1:33 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 5 hr |
| Jul 24, 2:02 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 43 min |
| Jul 24, 2:08 AM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 24, 2:10 AM EDT | Special Marine Warning | PHI | 95 min | |
| Jul 24, 2:34 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Cumberland, Gloucester, Salem | 41 min |
| Jul 24, 2:44 AM EDT | Special Marine Warning | PHI | 91 min | |
| Jul 24, 3:00 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Jul 24, 3:03 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 57 min |
| Jul 24, 3:17 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Warren | 118 min |
| Jul 24, 3:21 AM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 3 hr |
| Jul 24, 3:34 AM EDT | Special Marine Warning | PHI | 116 min | |
| Jul 24, 3:36 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more | 6 hr |
| Jul 24, 3:55 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 50 min |
| Jul 24, 9:30 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Middlesex, Morris, Somerset | 60 min |
| Jul 24, 10:04 AM EDT | Small Craft Advisory for Hazardous Seas | PHI | 8 hr | |
| Jul 24, 10:40 AM EDT | Areal Flood Warning | PHI | Cumberland | 10 hr |
| Jul 24, 2:55 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean | 11 hr |
| Jul 24, 7:07 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Warren | 113 min |
| Jul 24, 7:48 PM EDT | Areal Flood Advisory | PHI | Hunterdon | 117 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.