Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 259, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 9, 2008, 10:57 AM EDT for 5 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 48 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
- Sep 9, 2008, 10:57 AM EDT (14:57 UTC)
- Expired
- Sep 9, 2008, 11:45 AM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 28 km from the middle of the area, began a volume at 15:00 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 |
|---|---|---|---|
| Sep 9, 11:00 AM EDT | TSTM WND DMG | 5 Nw Crosswicks, NJ | FOUR TREES KNOCKED DOWN IN HAMILTON TOWNSHIP. ONE HOME HAD SCREENS RIPPED OFF AND LAWN FURNITURE TOSSED. A FEW WIRES KNOCKED DOWN IN WEST WINDSOR TOWNSHIP. |
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 |
|---|---|---|---|
| Sep 9, 9:33 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 3.0 hours before the alert went out and 155 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
- 34 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 1158 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 091457 SVRPHI NJC005-021-023-025-029-PAC017-091545- /O.NEW.KPHI.SV.W.0259.080909T1457Z-080909T1545Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1057 AM EDT TUE SEP 9 2008 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN MERCER COUNTY IN CENTRAL NEW JERSEY... SOUTHWESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY... EXTREME SOUTH CENTRAL MIDDLESEX COUNTY IN NORTHERN NEW JERSEY... EXTREME SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA... NORTH CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... NORTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 1145 AM EDT * AT 1055 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CROSSWICKS...OR ABOUT 7 MILES EAST OF TRENTON...AND MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... IMLAYSTOWN...CREAM RIDGE AND ROOSEVELT BY 1110 AM... CLARKSBURG BY 1115 AM... SIX FLAGS THEME PARK BY 1120 AM... CASSVILLE BY 1125 AM... JACKSONS MILLS BY 1130 AM... JACKSON BY 1135 AM... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 PM TUESDAY AFTERNOON FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 4027 7423 4001 7429 4015 7483 4026 7477 TIME...MOT...LOC 1457Z 283DEG 26KT 4019 7463 $$ MPD
1 follow-up statement
000
WWUS51 KPHI 091517
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1117 AM EDT TUE SEP 9 2008
NJC005-021-PAC017-091526-
/O.CAN.KPHI.SV.W.0259.000000T0000Z-080909T1545Z/
MERCER NJ-BUCKS PA-BURLINGTON NJ-
1116 AM EDT TUE SEP 9 2008
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BURLINGTON...
EXTREME SOUTHEASTERN BUCKS AND SOUTHERN MERCER COUNTIES IS
CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 PM EDT
TUESDAY AFTERNOON FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.
LAT...LON 4025 7424 4024 7424 4001 7429 4008 7456
4026 7447 4027 7446 4027 7423 4025 7423
TIME...MOT...LOC 1516Z 283DEG 26KT 4016 7445
$$
NJC023-025-029-091545-
/O.CON.KPHI.SV.W.0259.000000T0000Z-080909T1545Z/
MIDDLESEX NJ-MONMOUTH NJ-OCEAN NJ-
1116 AM EDT TUE SEP 9 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR NORTHWESTERN OCEAN...SOUTHWESTERN MONMOUTH AND EXTREME SOUTH
CENTRAL MIDDLESEX COUNTIES...
AT 1114 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CLARKSBURG...OR 16
MILES EAST OF TRENTON...MOVING EAST AT 30 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CASSVILLE BY 1125 AM EDT...
JACKSONS MILLS...7 MILES SOUTH OF WEST FREEHOLD AND 9 MILES SOUTH
OF FREEHOLD BY 1130 AM EDT...
JACKSON...6 MILES NORTH OF CEDAR GLEN WEST...6 MILES SOUTH OF
ADELPHIA AND 7 MILES NORTH OF LEISURE KNOLL BY 1135 AM EDT...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 PM EDT
TUESDAY AFTERNOON FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.
LAT...LON 4025 7424 4024 7424 4001 7429 4008 7456
4026 7447 4027 7446 4027 7423 4025 7423
TIME...MOT...LOC 1516Z 283DEG 26KT 4016 7445
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 3:36 AM EDT | Small Craft Advisory | PHI | 36 hr | |
| Sep 9, 9:09 AM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Sep 9, 9:21 AM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Hunterdon, Mercer, Morris, Salem, Somerset and 2 more | 39 min |
| Sep 9, 9:41 AM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Somerset | 3 hr |
| Sep 9, 9:59 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 3 hr |
| Sep 9, 10:04 AM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 3 hr |
| Sep 9, 11:07 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 38 min |
| Sep 9, 11:50 AM EDT | Special Marine Warning | PHI | 55 min | |
| Sep 9, 12:11 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 49 min |
| Sep 9, 12:44 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 46 min |
| Sep 9, 1:05 PM EDT | Special Marine Warning | PHI | 55 min | |
| Sep 9, 1:07 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 53 min |
| Sep 9, 1:55 PM EDT | Special Marine Warning | PHI | 65 min | |
| Sep 9, 1:58 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 92 min |
| Sep 9, 2:42 PM EDT | Areal Flood Advisory | PHI | Cape May | 3 hr |
| Sep 9, 2:53 PM EDT | Special Marine Warning | PHI | 86 min | |
| Sep 9, 8:40 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 50 min |
| Sep 9, 8:51 AM EDT | Areal Flood Advisory | PHI | Berks, Lehigh | 3 hr |
| Sep 9, 8:51 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Montgomery and 1 more | 39 min |
| Sep 9, 9:30 AM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 3 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2008Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008
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.