Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 97, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 1, 2013, 3:44 PM EDT for Atlantic County, New Jersey. It was in force for 61 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
- Sep 1, 2013, 3:44 PM EDT (19:44 UTC)
- Expired
- Sep 1, 2013, 4:45 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Atlantic County, NJ
The radar
The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 19:46 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, 7.7 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
- 776 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 883 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
019
WUUS51 KPHI 011944
SVRPHI
NJC001-012045-
/O.NEW.KPHI.SV.W.0097.130901T1944Z-130901T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
344 PM EDT SUN SEP 1 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 445 PM EDT
* AT 340 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR ENGLISH CREEK...MOVING
NORTHEAST AT 10 MPH. THIS STORM IS CAPABLE OF PRODUCING ONE INCH
DIAMETER HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
NORTHFIELD AROUND 410 PM EDT...
PLEASANTVILLE AROUND 425 PM EDT...
POMONA AND ABSECON AROUND 445 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.
VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS SEVERE THUNDERSTORM...WHICH
COULD FLOOD LOW LYING AREAS QUICKLY AND COVER ROADS WITH WATER. DO
NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SEVERE
THUNDERSTORM. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 3949 7440 3930 7463 3929 7465 3932 7473
3961 7461
TIME...MOT...LOC 1944Z 220DEG 7KT 3935 7464
$$
FORECASTER: GORSE2 follow-up statements
501 WWUS51 KPHI 012004 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 404 PM EDT SUN SEP 1 2013 NJC001-012045- /O.CON.KPHI.SV.W.0097.000000T0000Z-130901T2045Z/ ATLANTIC NJ- 404 PM EDT SUN SEP 1 2013 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR EASTERN ATLANTIC COUNTY... AT 357 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS TO 60 MPH. THIS STORM WAS LOCATED NEAR ENGLISH CREEK...OR 7 MILES NORTH OF OCEAN CITY...MOVING NORTHEAST AT 10 MPH. THIS STORM IS BUILDING WESTWARD SOME. THE SEVERE THUNDERSTORM WILL BE NEAR... NORTHFIELD AROUND 415 PM EDT... PLEASANTVILLE AROUND 430 PM EDT... POMONA AND ABSECON AROUND 445 PM EDT... THIS THUNDERSTORM HAS WEAKENED SOME, HOWEVER HAIL UP TO THE SIZE OF PENNIES IS ALSO POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO HAIL AND DAMAGING WINDS...CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 3949 7440 3931 7462 3935 7472 3961 7461 TIME...MOT...LOC 2002Z 220DEG 7KT 3938 7461 $$ FORECASTER: GORSE
611 WWUS51 KPHI 012017 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 417 PM EDT SUN SEP 1 2013 NJC001-012025- /O.CAN.KPHI.SV.W.0097.000000T0000Z-130901T2045Z/ ATLANTIC NJ- 417 PM EDT SUN SEP 1 2013 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ATLANTIC COUNTY IS CANCELLED... THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS MOVED OUT OF THE AREA AND HAS BECOME SUB-SEVERE..THEREFORE THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED. LAT...LON 3949 7440 3931 7462 3935 7472 3961 7461 TIME...MOT...LOC 2015Z 220DEG 7KT 3940 7459 $$ FORECASTER: GAINES/GORSE
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 4:23 AM EDT | Special Weather Statement | PHI | Middlesex | 52 min |
| Sep 1, 4:33 AM EDT | Areal Flood Advisory | PHI | Middlesex | 4 hr |
| Sep 1, 7:24 AM EDT | Special Weather Statement | PHI | Warren | 96 min |
| Sep 1, 7:51 AM EDT | Special Weather Statement | PHI | Hunterdon | 84 min |
| Sep 1, 9:13 AM EDT | Special Weather Statement | PHI | Middlesex, Somerset | 92 min |
| Sep 1, 3:33 PM EDT | Special Weather Statement | PHI | Atlantic | 42 min |
| Sep 1, 4:13 PM EDT | Special Weather Statement | PHI | Monmouth | 62 min |
| Sep 1, 4:25 PM EDT | Special Weather Statement | PHI | Ocean | 65 min |
| Sep 1, 4:40 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 65 min |
| Sep 1, 4:59 PM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 2 hr |
| Sep 1, 7:25 PM EDT | Special Weather Statement | PHI | Hunterdon | 65 min |
| Sep 1, 7:31 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Warren | 119 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2013Every severe thunderstorm warning in 2013
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.