Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 207, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 29, 2011, 6:25 PM EDT for Middlesex County, New Jersey. It was in force for 20 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 29, 2011, 6:25 PM EDT (22:25 UTC)
- Expired
- Jul 29, 2011, 6:45 PM EDT
- In force
- 20 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Middlesex County, NJ
The radar
The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 22:26 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 29, 2:40 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.4 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
- 81 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
289
WUUS51 KPHI 292225
SVRPHI
NJC023-292245-
/O.NEW.KPHI.SV.W.0207.110729T2225Z-110729T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
625 PM EDT FRI JUL 29 2011
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 645 PM EDT
* AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
CLEARBROOK PARK...OR 11 MILES SOUTH OF NEW BRUNSWICK...AND MOVING
SOUTHEAST AT 35 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FRIDAY EVENING
FOR NORTHWEST NEW JERSEY AND NORTHEAST PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM EDT FRIDAY
EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4026 7448 4028 7452 4029 7455 4032 7462
4034 7465 4037 7461 4041 7459 4043 7453
4048 7447 4040 7427
TIME...MOT...LOC 2224Z 311DEG 37KT 4030 7445
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:42 AM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cumberland, Middlesex, Monmouth and 1 more | 63 min |
| Jul 29, 3:45 AM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Cumberland, Ocean | 60 min |
| Jul 29, 5:12 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 108 min |
| Jul 29, 5:59 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 61 min |
| Jul 29, 6:17 PM EDT | Special Weather Statement | PHI | Monmouth | 58 min |
| Jul 29, 6:23 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 29, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 66 min |
| Jul 29, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 46 min |
| Jul 29, 7:14 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 42 min |
| Jul 29, 7:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 63 min |
| Jul 29, 7:40 PM EDT | Special Marine Warning | PHI | 95 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2011Every severe thunderstorm warning in 2011
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.