Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 46, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 3, 2009, 4:06 PM EDT for New Castle County, Delaware; Cumberland County, Gloucester County, Salem County, New Jersey. It was in force for 54 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 3, 2009, 4:06 PM EDT (20:06 UTC)
- Expired
- Jun 3, 2009, 5:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties New Castle County, DE, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 87 km from the middle of the area, began a volume at 20:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 3, 4:26 PM EDT | TSTM WND DMG | Pennsville, NJ | WIRES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 3, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.1 hours before the alert went out and 50 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
- 13 J/kg
- Mixed-layer CIN
- -276 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 032006
SVRPHI
DEC003-NJC011-015-033-032100-
/O.NEW.KPHI.SV.W.0046.090603T2006Z-090603T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
406 PM EDT WED JUN 3 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
THIS INCLUDES THE CITIES OF...WILMINGTON...NEWARK...
EXTREME NORTHWESTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
WEST CENTRAL GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
SALEM COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF SALEM...
* UNTIL 500 PM EDT
* AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
STANTON...OR NEAR NEWARK...AND MOVING EAST AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
WILMINGTON MANOR AROUND 415 PM EDT...
NEW CASTLE AND DELAWARE CITY AROUND 420 PM EDT...
PENNSVILLE AROUND 425 PM EDT...
CARNEYS POINT AROUND 430 PM EDT...
SALEM AROUND 435 PM EDT...
WOODSTOWN AROUND 450 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY.
&&
LAT...LON 3980 7568 3965 7518 3944 7539 3953 7554
3956 7553 3958 7554 3958 7556 3954 7555
3954 7556 3964 7579
TIME...MOT...LOC 2006Z 288DEG 20KT 3967 7566
$$
AMC1 follow-up statement
000 WWUS51 KPHI 032037 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 437 PM EDT WED JUN 3 2009 DEC003-NJC015-032047- /O.CAN.KPHI.SV.W.0046.000000T0000Z-090603T2100Z/ GLOUCESTER NJ-NEW CASTLE DE- 437 PM EDT WED JUN 3 2009 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN NEW CASTLE AND WEST CENTRAL GLOUCESTER COUNTIES IS CANCELLED... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY. LAT...LON 3944 7539 3961 7557 3972 7547 3964 7519 TIME...MOT...LOC 2037Z 290DEG 19KT 3962 7547 $$ NJC011-033-032100- /O.CON.KPHI.SV.W.0046.000000T0000Z-090603T2100Z/ SALEM NJ-CUMBERLAND NJ- 437 PM EDT WED JUN 3 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT FOR EXTREME NORTHWESTERN CUMBERLAND AND SALEM COUNTIES... AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PENNSVILLE...OR NEAR SALEM...MOVING EAST AT 20 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... ALLOWAY AND WOODSTOWN BY 455 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW JERSEY. && LAT...LON 3944 7539 3961 7557 3972 7547 3964 7519 TIME...MOT...LOC 2037Z 290DEG 19KT 3962 7547 $$ AMC
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 6:10 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 65 min |
| Jun 3, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 54 min |
| Jun 3, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Salem | 65 min |
| Jun 3, 7:12 PM EDT | Special Marine Warning | PHI | 63 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2009Severe Thunderstorm Warnings in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.