Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 9, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 6, 2009, 6:59 AM EDT for 5 counties in New Jersey. It was in force for 61 min. 2 reports 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
- Apr 6, 2009, 6:59 AM EDT (10:59 UTC)
- Expired
- Apr 6, 2009, 8:00 AM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Atlantic County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 11:00 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 |
|---|---|---|---|
| Apr 6, 7:05 AM EDT | HAIL 0.25 | 2 Ne South Vineland, NJ | DIME SIZE HAIL REPORTED |
| Apr 6, 7:30 AM EDT | HAIL 0.88 | Vineland, NJ | TRAINED SPOTTER REPORTED NICKEL SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 11.0 hours before the alert went out and 177 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2490 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 128 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 061059
SVRPHI
NJC001-007-011-015-033-061200-
/O.NEW.KPHI.SV.W.0009.090406T1059Z-090406T1200Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
659 AM EDT MON APR 6 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
SOUTH CENTRAL CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
EASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...
* UNTIL 800 AM EDT
* AT 657 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND
POSSIBLY SOME STRONG GUSTY WINDS. THIS STORM WAS LOCATED NEAR
NEWPORT...OR 6 MILES SOUTHWEST OF MILLVILLE...AND MOVING NORTHEAST
AT 40 MPH. OTHER INTENSIFYING STORMS WERE IN SALEM COUNTY THAT ALSO
COULD BECOME SEVERE WITH LARGE HAIL.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
MILLVILLE AND LAUREL LAKE BY 705 AM EDT...
SOUTH VINELAND AND CUMBERLAND BY 710 AM EDT...
VINELAND BY 715 AM EDT...
BUENA BY 720 AM EDT...
MIZPAH BY 725 AM EDT...
FOLSOM BY 730 AM EDT...
LAT...LON 3923 7517 3934 7529 3988 7519 3988 7517
3948 7461
TIME...MOT...LOC 1059Z 225DEG 37KT 3934 7512
$$
TFG1 follow-up statement
000
WWUS51 KPHI 061132
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
732 AM EDT MON APR 6 2009
NJC001-007-011-015-033-061200-
/O.CON.KPHI.SV.W.0009.000000T0000Z-090406T1200Z/
SALEM NJ-CUMBERLAND NJ-CAMDEN NJ-GLOUCESTER NJ-ATLANTIC NJ-
732 AM EDT MON APR 6 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 AM EDT
FOR NORTHWESTERN ATLANTIC...SOUTHEASTERN GLOUCESTER...SOUTH CENTRAL
CAMDEN...CUMBERLAND AND SOUTHEASTERN SALEM COUNTIES...
AT 727 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED ANOTHER SEVERE THUNDERSTORM CAPABLE OF
PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED
10 MILES SOUTHWEST OF NEWPORT...OR 11 MILES
EAST OF DOVER...MOVING NORTHEAST AT 60 MPH. THE PREVIOUS
THUNDERSTORM PRODUCED PEA TO DIME SIZE HAIL.
THE SEVERE THUNDERSTORM WILL BE NEAR...
7 MILES SOUTHEAST OF FAIRTON BY 740 AM EDT...
LAUREL LAKE AND MILLVILLE BY 745 AM EDT...
CUMBERLAND...6 MILES SOUTHEAST OF SOUTH VINELAND AND 6 MILES
SOUTHEAST OF VINELAND BY 750 AM EDT...
MIZPAH AND 8 MILES SOUTHEAST OF BUENA BY 755 AM EDT...
MAYS LANDING BY 800 AM EDT...
IF YOU SEE THREATENING WEATHER...PLEASE SEEK SHELTER INDOORS
IMMEDIATELY.
LAT...LON 3923 7517 3934 7529 3969 7511 3980 7506
3948 7461
TIME...MOT...LOC 1131Z 237DEG 52KT 3923 7525
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:15 AM EDT | Special Marine Warning | PHI | 60 min | |
| Apr 6, 7:37 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 53 min |
| Apr 6, 8:36 AM EDT | Special Marine Warning | PHI | 84 min | |
| Apr 6, 10:27 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 48 min |
| Apr 6, 10:35 AM EDT | Special Marine Warning | PHI | 85 min | |
| Apr 6, 11:29 AM 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.