Alert archive / New Jersey / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 68, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2013, 7:17 PM EDT for Ocean County, New Jersey. It was in force for 28 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 18, 2013, 7:17 PM EDT (23:17 UTC)
- Expired
- Jul 18, 2013, 7:45 PM EDT
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 31 km from the middle of the area, began a volume at 23:18 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
Brookhaven, NY (KOKX), launched 12:00Z, 11.3 hours before the alert went out and 165 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
- 2064 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1211 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
685
WUUS51 KPHI 182317
SVRPHI
NJC029-182345-
/O.NEW.KPHI.SV.W.0068.130718T2317Z-130718T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
717 PM EDT THU JUL 18 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 745 PM EDT
* AT 714 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM. THE STORM WAS NEAR BARNEGAT...MOVING EAST AT
15 MPH. THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
HARVEY CEDARS AND SURF CITY AROUND 725 PM EDT...
BARNEGAT LIGHT AROUND 730 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3977 7409 3967 7414 3962 7418 3967 7434
3983 7427 3981 7416 3975 7418 3972 7415
3974 7414 3977 7415 3978 7413 3980 7413
3980 7408 3977 7408
TIME...MOT...LOC 2317Z 285DEG 13KT 3972 7419
$$
ROBERTRSON1 follow-up statement
452
WWUS51 KPHI 182338
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
738 PM EDT THU JUL 18 2013
NJC029-182345-
/O.CON.KPHI.SV.W.0068.000000T0000Z-130718T2345Z/
OCEAN NJ-
738 PM EDT THU JUL 18 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTH CENTRAL OCEAN COUNTY...
AT 735 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR HARVEY CEDARS...OR 17 MILES SOUTH OF TOMS RIVER...MOVING EAST AT
15 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHIP
BOTTOM AND MANAHAWKIN.
A SECOND SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR ANOTHER
PORTION OF OCEAN COUNTY UNTIL 830 PM.
LAT...LON 3977 7408 3977 7409 3967 7414 3962 7418
3967 7428 3977 7421 3975 7418 3972 7415
3974 7414 3977 7415 3978 7413
TIME...MOT...LOC 2337Z 285DEG 13KT 3970 7410
$$
ROBERTRSONThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 2:16 AM EDT | Special Weather Statement | PHI | Hunterdon | 59 min |
| Jul 18, 4:31 PM EDT | Special Weather Statement | PHI | Burlington | 44 min |
| Jul 18, 5:01 PM EDT | Special Weather Statement | PHI | Burlington | 29 min |
| Jul 18, 5:03 PM EDT | Special Weather Statement | PHI | Burlington | 27 min |
| Jul 18, 5:40 PM EDT | Special Weather Statement | PHI | Ocean | 35 min |
| Jul 18, 5:41 PM EDT | Special Weather Statement | PHI | Ocean | 34 min |
| Jul 18, 6:13 PM EDT | Special Weather Statement | PHI | Camden | 47 min |
| Jul 18, 6:30 PM EDT | Special Weather Statement | PHI | Ocean | 30 min |
| Jul 18, 6:39 PM EDT | Special Weather Statement | PHI | Burlington | 66 min |
| Jul 18, 6:41 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 64 min |
| Jul 18, 6:48 PM EDT | Special Weather Statement | PHI | Ocean | 42 min |
| Jul 18, 6:55 PM EDT | Special Weather Statement | PHI | Camden | 50 min |
| Jul 18, 7:05 PM EDT | Special Weather Statement | PHI | Burlington | 40 min |
| Jul 18, 7:14 PM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 61 min |
| Jul 18, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 57 min |
| Jul 18, 7:57 PM EDT | Special Weather Statement | PHI | Burlington | 48 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.