Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 88, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 20, 2009, 6:35 PM EDT for Cape May County, New Jersey. It was in force for 10 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
- Jun 20, 2009, 6:35 PM EDT (22:35 UTC)
- Expired
- Jun 20, 2009, 6:45 PM EDT
- In force
- 10 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
County Cape May County, NJ
The radar
The Dover AFB radar (KDOX), 57 km from the middle of the area, began a volume at 22:35 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, 10.6 hours before the alert went out and 132 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
- 1201 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 690 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 202235
SVRPHI
NJC009-202245-
/O.NEW.KPHI.SV.W.0088.090620T2235Z-090620T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
635 PM EDT SAT JUN 20 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF CAPE MAY...
* UNTIL 645 PM EDT
* AT 634 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM AVALON TO SCOTCH BONNET TO
WILDWOOD TO CAPE MAY...OR ALONG A LINE EXTENDING FROM 14 MILES
NORTHEAST OF CAPE MAY TO 9 MILES NORTHEAST OF CAPE MAY TO CAPE
MAY...AND MOVING EAST AT 30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
SEA ISLE CITY...STONE HARBOR AND AVALON AROUND 640 PM EDT...
LAT...LON 3892 7498 3898 7498 3907 7490 3918 7485
3915 7468 3912 7470 3910 7470 3907 7471
3902 7479 3899 7479 3893 7488 3892 7497
TIME...MOT...LOC 2235Z 286DEG 27KT 3912 7476 3904 7479
3899 7483 3890 7491
$$
KRUZDLOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 4:33 AM EDT | Small Craft Advisory | PHI | 3 days | |
| Jun 20, 5:01 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 59 min |
| Jun 20, 5:14 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jun 20, 6:35 PM EDT | Special Marine Warning | PHI | 40 min | |
| Jun 20, 6:38 PM EDT | Special Marine Warning | PHI | 52 min | |
| Jun 20, 6:55 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 2 more | 5 hr |
| Jun 20, 7:29 PM EDT | Special Marine Warning | PHI | 61 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2009Every severe thunderstorm warning in 2009
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.