Alert archive / New Jersey / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 177, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 17, 2010, 3:28 AM EST for 5 counties in Pennsylvania; 7 counties in New Jersey. It was in force for 62 min. 3 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
- Nov 17, 2010, 3:28 AM EST (08:28 UTC)
- Expired
- Nov 17, 2010, 4:30 AM EST
- In force
- 62 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 111 km from the middle of the area, began a volume at 08:31 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 |
|---|---|---|---|
| Nov 17, 4:02 AM EST | TSTM WND DMG | 6 Ese Lake Mohawk, NJ | MULTIPLE TREES DOWN ON HOMES AND CARS IN JEFFERSON TOWNSHIP, MORRIS COUNTY. |
| Nov 17, 4:14 AM EST | TSTM WND DMG | 3 N Chapman, PA | ROOF DAMAGE TO HOME ON DANNERSVILLE RD...MULTIPLE TREES DOWN IN TOWNSHIP. |
| Nov 17, 4:20 AM EST | TSTM WND GST 48 | Perth Amboy, NJ | A 48 MPH THUNDERSTORM WIND GUST WAS RECORDED AT PERTH AMBOY. |
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 |
|---|---|---|---|
| Nov 17, 12:06 AM EST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 8.5 hours before the alert went out and 165 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
- 931 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 367 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
688
WUUS51 KPHI 170828
SVRPHI
NJC019-021-023-027-035-037-041-PAC017-025-077-089-095-170930-
/O.NEW.KPHI.SV.W.0177.101117T0828Z-101117T0930Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
328 AM EST WED NOV 17 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN MERCER COUNTY IN CENTRAL NEW JERSEY...
NORTH CENTRAL LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
THIS INCLUDES THE CITY OF EASTON...
EXTREME SOUTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
EASTERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
THIS INCLUDES THE CITY OF MOUNT POCONO...
NORTHERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK...
MORRIS COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF MORRISTOWN...
SOMERSET COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF SOMERVILLE...
HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
WARREN COUNTY IN NORTHWEST NEW JERSEY...
CENTRAL BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
* UNTIL 430 AM EST
* AT 327 AM EST...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 DELAWARE WATER GAP TO BLOOMSBURY TO ROBESONIA...OR ALONG A
LINE EXTENDING FROM 14 MILES SOUTHEAST OF MOUNT POCONO TO 8 MILES
EAST OF EASTON TO 19 MILES NORTH OF PHILADELPHIA...AND MOVING EAST
AT 55 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
SERGEANTSVILLE...SAND BROOK...HOPE AND HAMPTON AROUND 335 AM EST...
LEBANON...GREAT MEADOWS...GREAT MEADOWS-VIENNA AND FLEMINGTON
AROUND 340 AM EST...
CLOVERHILL AND WHITE HOUSE STATION AROUND 345 AM EST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 4125 7448 4120 7439 4104 7449 4100 7430
4091 7427 4089 7433 4059 7444 4057 7420
4045 7424 4031 7522 4060 7522 4054 7535
4066 7543 4079 7562 4089 7527 4111 7545
4121 7515 4116 7516 4109 7501 4128 7484
TIME...MOT...LOC 0828Z 270DEG 49KT 4100 7512 4065 7505
4029 7510
$$
HAYES3 follow-up statements
692
WWUS51 KPHI 170848
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
348 AM EST WED NOV 17 2010
PAC017-025-077-089-095-170856-
/O.CAN.KPHI.SV.W.0177.000000T0000Z-101117T0930Z/
LEHIGH PA-NORTHAMPTON PA-CARBON PA-BUCKS PA-MONROE PA-
348 AM EST WED NOV 17 2010
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MONROE...CENTRAL
BUCKS...SOUTHEASTERN CARBON...NORTHAMPTON AND EXTREME EAST CENTRAL
LEHIGH COUNTIES IS CANCELLED...
THE LINE OF STORMS THAT PROMPTED THE WARNING HAS MOVED EAST OF THE
AREA.
LAT...LON 4125 7448 4120 7439 4104 7449 4099 7430
4091 7427 4089 7433 4067 7445 4066 7442
4059 7444 4057 7421 4048 7427 4045 7424
4037 7496 4042 7506 4069 7515 4086 7505
4099 7514 4107 7497 4110 7499 4128 7484
TIME...MOT...LOC 0846Z 260DEG 44KT 4113 7488 4071 7481
4038 7476
$$
NJC019-021-023-027-035-037-041-170930-
/O.CON.KPHI.SV.W.0177.000000T0000Z-101117T0930Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-SOMERSET NJ-MERCER NJ-
MIDDLESEX NJ-
348 AM EST WED NOV 17 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM EST
FOR NORTHERN MIDDLESEX...EXTREME NORTH CENTRAL MERCER...SOMERSET...
HUNTERDON...MORRIS...WARREN AND SUSSEX COUNTIES...
AT 343 AM EST...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 FLATBROOKVILLE TO CALIFON TO HOPEWELL...OR ALONG A
LINE EXTENDING FROM 10 MILES NORTHWEST OF NEWTON TO 16 MILES
NORTHWEST OF SOMERVILLE TO 11 MILES NORTH OF TRENTON...MOVING EAST AT
50 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
BRIDGEWATER...BELLE MEAD...SUCCASUNNA AND STANHOPE BY 355 AM EST...
MARTINSVILLE...BASKING RIDGE...WHARTON AND SOUTH BOUND BROOK BY 400
AM EST...
SUSSEX AND MILLINGTON BY 405 AM EST...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DAMAGING WINDS UP TO 60 MPH MPH WERE REPORTED IN NORTHAMPTON COUNTY
WITH THESS STORM. THESE ARE DANGEROUS STORMS...SEEK SAFE SHELTER AND
STAY AWAY FROM WINDOWS!
THESE SEVERE THUNDERSTORMS MAY CONTAIN LITTLE OR NO LIGHTNING. DO
NOT WAIT FOR THUNDER BEFORE TAKING COVER. SEEK SHELTER IMMEDIATELY
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4125 7448 4120 7439 4104 7449 4099 7430
4091 7427 4089 7433 4067 7445 4066 7442
4059 7444 4057 7421 4048 7427 4045 7424
4037 7496 4042 7506 4069 7515 4086 7505
4099 7514 4107 7497 4110 7499 4128 7484
TIME...MOT...LOC 0846Z 260DEG 44KT 4113 7488 4071 7481
4038 7476
$$
HAYES563
WWUS51 KPHI 170919
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
419 AM EST WED NOV 17 2010
NJC019-021-041-170929-
/O.CAN.KPHI.SV.W.0177.000000T0000Z-101117T0930Z/
WARREN NJ-HUNTERDON NJ-MERCER NJ-
419 AM EST WED NOV 17 2010
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTH CENTRAL
MERCER...HUNTERDON AND WARREN COUNTIES IS CANCELLED...
LAT...LON 4048 7449 4057 7456 4074 7460 4089 7471
4096 7461 4106 7472 4115 7476 4127 7477
4125 7448 4120 7439 4104 7449 4100 7432
4091 7427 4089 7433 4067 7445 4066 7442
4059 7444 4057 7421 4048 7427 4045 7424
TIME...MOT...LOC 0919Z 248DEG 27KT 4120 7446 4078 7440
4045 7436
$$
NJC023-027-035-037-170930-
/O.CON.KPHI.SV.W.0177.000000T0000Z-101117T0930Z/
SUSSEX NJ-MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-
419 AM EST WED NOV 17 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 AM EST
FOR NORTHEASTERN MIDDLESEX...NORTHEASTERN SOMERSET...MORRIS AND
EASTERN SUSSEX COUNTIES...
AT 417 AM EST...A LINE OF SEVERE THUNDERSTORMS WAS REPORTED CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM HIGHLAND LAKE TO MADISON TO
SAYREVILLE...OR ALONG A LINE EXTENDING FROM 17 MILES NORTHEAST OF
NEWTON TO MORRISTOWN TO NEW BRUNSWICK...MOVING EAST AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
SAYREVILLE...KINNELON...ISELIN AND FORDS BY 425 AM EST...
SEWAREN...PEQUANNOCK TOWNSHIP...PORT READING AND LINCOLN PARK BY
430 AM EST...
LAT...LON 4048 7449 4057 7456 4074 7460 4089 7471
4096 7461 4106 7472 4115 7476 4127 7477
4125 7448 4120 7439 4104 7449 4100 7432
4091 7427 4089 7433 4067 7445 4066 7442
4059 7444 4057 7421 4048 7427 4045 7424
TIME...MOT...LOC 0919Z 248DEG 27KT 4120 7446 4078 7440
4045 7436
$$
HAYES625
WWUS51 KPHI 170930
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
430 AM EST WED NOV 17 2010
NJC023-027-035-037-170940-
/O.EXP.KPHI.SV.W.0177.000000T0000Z-101117T0930Z/
SUSSEX NJ-MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-
430 AM EST WED NOV 17 2010
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIDDLESEX...
NORTHEASTERN SOMERSET...MORRIS AND EASTERN SUSSEX COUNTIES HAS
EXPIRED...
THE LINE OF STORMS THAT PROMPTED THE WARNING HAS MOVED TO THE EAST
OF THE AREA.
LAT...LON 4048 7449 4057 7456 4074 7460 4089 7471
4096 7461 4106 7472 4115 7476 4127 7477
4125 7448 4120 7439 4104 7449 4100 7432
4091 7427 4089 7433 4067 7445 4066 7442
4059 7444 4057 7421 4048 7427 4045 7424
TIME...MOT...LOC 0930Z 248DEG 27KT 4122 7435 4080 7430
4047 7426
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 12:33 AM EST | Special Weather Statement | PHI | Carbon | 57 min |
| Nov 17, 1:23 AM EST | Special Weather Statement | PHI | Berks, Carbon | 67 min |
| Nov 17, 1:44 AM EST | Special Weather Statement | PHI | Chester | 61 min |
| Nov 17, 1:49 AM EST | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 56 min |
| Nov 17, 2:16 AM EST | Special Weather Statement | PHI | Chester, Lehigh | 59 min |
| Nov 17, 2:35 AM EST | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 55 min |
| Nov 17, 2:40 AM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more | 65 min |
| Nov 17, 3:13 AM EST | Severe Thunderstorm Warning | PHI | Bucks | 62 min |
| Nov 17, 12:05 AM EST | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Monmouth, Ocean | 55 min |
| Nov 17, 12:43 AM EST | Special Weather Statement | PHI | Atlantic, Cape May, Ocean | 62 min |
| Nov 17, 12:47 AM EST | Special Weather Statement | PHI | Morris | 58 min |
| Nov 17, 12:50 AM EST | Special Weather Statement | PHI | Middlesex, Monmouth | 55 min |
| Nov 17, 1:59 AM EST | Special Weather Statement | PHI | Cumberland, Gloucester, Salem | 61 min |
| Nov 17, 2:17 AM EST | Special Weather Statement | PHI | Middlesex | 58 min |
| Nov 17, 2:23 AM EST | Special Marine Warning | PHI | 67 min | |
| Nov 17, 2:50 AM EST | Special Marine Warning | PHI | 55 min | |
| Nov 17, 2:55 AM EST | Special Marine Warning | PHI | 65 min | |
| Nov 17, 2:57 AM EST | Special Weather Statement | PHI | Cape May | 33 min |
| Nov 17, 3:34 AM EST | Special Marine Warning | PHI | 56 min | |
| Nov 17, 4:06 AM EST | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Ocean | 24 min |
| Nov 17, 4:22 AM EST | Special Marine Warning | PHI | 53 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2010Severe Thunderstorm Warnings in Pennsylvania, 2010Every severe thunderstorm warning in 2010
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.