Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 240, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Oct 19, 2007, 11:15 PM EDT for Middlesex County, Morris County, Somerset County, New Jersey. It was in force for 41 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
- Oct 19, 2007, 11:15 PM EDT (03:15 UTC)
- Expired
- Oct 19, 2007, 11:56 PM EDT
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Middlesex County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 80 km from the middle of the area, began a volume at 03:19 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 |
|---|---|---|---|
| Oct 19, 11:30 PM EDT | TSTM WND GST 60 | New Brunswick, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 3.3 hours before the alert went out and 126 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
- 323 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 490 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 205 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 200315
SVRPHI
NJC023-027-035-200415-
/O.NEW.KPHI.SV.W.0240.071020T0315Z-071020T0415Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1115 PM EDT FRI OCT 19 2007
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK...
SOUTHEASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
SOUTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 1215 AM EDT
* AT 1114 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM MADISON TO SOUTH BRUNSWICK...OR ALONG A LINE EXTENDING FROM 13
MILES WEST OF NEWARK TO 14 MILES WEST OF ELIZABETH TO 10 MILES
SOUTHWEST OF NEW BRUNSWICK...AND MOVING EAST AT 30 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
EAST HANOVER...SOCIETY HILL...NORTH BRUNSWICK AND NEW BRUNSWICK BY
1120 PM EDT...
JAMESBURG AND EAST BRUNSWICK BY 1125 PM EDT...
EDISON AND COLONIA BY 1130 PM EDT...
SAYREVILLE AND PERTH AMBOY BY 1135 PM EDT...
DOPPLER RADAR HAS INDICATED SOME WEAK 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.
LAT...LON 4054 7424 4046 7425 4032 7434 4032 7463
4068 7451 4099 7435 4097 7427 4089 7426
4089 7433 4085 7431 4078 7437 4075 7435
4066 7446 4066 7440 4059 7444 4060 7430
4059 7428 4060 7422 4059 7420
TIME...MOT...LOC 0315Z 276DEG 28KT 4077 7441 4069 7444
4037 7456
$$
TFG2 follow-up statements
000
WWUS51 KPHI 200346
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1146 PM EDT FRI OCT 19 2007
NJC027-035-200356-
/O.CAN.KPHI.SV.W.0240.000000T0000Z-071020T0415Z/
MORRIS NJ-SOMERSET NJ-
1146 PM EDT FRI OCT 19 2007
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SOMERSET AND
SOUTHEASTERN MORRIS COUNTIES IS CANCELLED...
THE LINE OF SEVERE STORMS HAS MOVED EAST OF THE AREA.
LAT...LON 4054 7424 4051 7424 4049 7426 4046 7425
4034 7433 4032 7435 4032 7441 4058 7433
4060 7434 4059 7430 4060 7421 4059 7420
TIME...MOT...LOC 0346Z 276DEG 28KT 4072 7421 4064 7424
4032 7437
$$
NJC023-200415-
/O.CON.KPHI.SV.W.0240.000000T0000Z-071020T0415Z/
MIDDLESEX NJ-
1146 PM EDT FRI OCT 19 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM EDT
FOR EASTERN MIDDLESEX COUNTY...
AT 1145 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES NORTH OF CARTERET TO AVENEL TO SPOTSWOOD...OR
ALONG A LINE EXTENDING FROM NEWARK TO ELIZABETH TO 12 MILES SOUTH OF
NEW BRUNSWICK...MOVING EAST AT 30 MPH.
LAT...LON 4054 7424 4051 7424 4049 7426 4046 7425
4034 7433 4032 7435 4032 7441 4058 7433
4060 7434 4059 7430 4060 7421 4059 7420
TIME...MOT...LOC 0346Z 276DEG 28KT 4072 7421 4064 7424
4032 7437
$$
TFG000
WWUS51 KPHI 200356
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1155 PM EDT FRI OCT 19 2007
NJC023-200405-
/O.CAN.KPHI.SV.W.0240.000000T0000Z-071020T0415Z/
MIDDLESEX NJ-
1155 PM EDT FRI OCT 19 2007
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MIDDLESEX COUNTY IS
CANCELLED...
THE LINE OF SEVERE THUNDERSTORMS HAS MOVED EAST OF THE AREA.
LAT...LON 4054 7424 4051 7424 4049 7426 4046 7425
4034 7433 4032 7435 4032 7441 4058 7433
4060 7434 4059 7430 4060 7421 4059 7420
TIME...MOT...LOC 0355Z 276DEG 28KT 4071 7412 4063 7415
4031 7428
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 10:20 PM EDT | Special Marine Warning | PHI | 55 min | |
| Oct 19, 10:53 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset | 49 min |
| Oct 19, 11:33 PM EDT | Special Marine Warning | PHI | 57 min | |
| Oct 19, 11:36 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Middlesex, Monmouth, Ocean | 54 min |
| Oct 19, 11:38 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Ocean | 67 min |
| Oct 19, 11:42 PM EDT | Special Marine Warning | PHI | 63 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2007Every severe thunderstorm warning in 2007
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.