Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 184, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 5, 2009, 2:45 PM EDT for 4 counties in New Jersey. It was in force for 75 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 5, 2009, 2:45 PM EDT (18:45 UTC)
- Expired
- Aug 5, 2009, 4:00 PM EDT
- In force
- 75 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Morris County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 18:46 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.8 hours before the alert went out and 153 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
- 1399 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 78 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 051845
SVRPHI
NJC019-027-037-041-052000-
/O.NEW.KPHI.SV.W.0184.090805T1845Z-090805T2000Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
245 PM EDT WED AUG 5 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MORRIS COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF MORRISTOWN...
NORTHEASTERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
SOUTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 400 PM EDT
* AT 244 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM LAKE MOHAWK TO BELVIDERE...OR
ALONG A LINE EXTENDING FROM 7 MILES EAST OF NEWTON TO 16 MILES
NORTHEAST OF EASTON...AND MOVING SOUTHEAST AT 15 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
BELVIDERE AROUND 255 PM EDT...
ALLAMUCHY AND ALLAMUCHY-PANTHER VALLEY AROUND 300 PM EDT...
HOPATCONG...GREAT MEADOWS AND GREAT MEADOWS-VIENNA AROUND 310 PM
EDT...
OXFORD AROUND 320 PM EDT...
STANHOPE AROUND 325 PM EDT...
HACKETTSTOWN AROUND 330 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4082 7433 4073 7462 4072 7471 4070 7473
4064 7493 4084 7510 4085 7506 4086 7505
4093 7510 4114 7451 4109 7448 4104 7449
4105 7445 4085 7431
TIME...MOT...LOC 1845Z 325DEG 7KT 4102 7462 4087 7504
$$
TFG2 follow-up statements
000
WWUS51 KPHI 051920
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
320 PM EDT WED AUG 5 2009
NJC019-027-037-041-052000-
/O.CON.KPHI.SV.W.0184.000000T0000Z-090805T2000Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-HUNTERDON NJ-
320 PM EDT WED AUG 5 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTHEASTERN HUNTERDON...MORRIS...SOUTHERN WARREN AND SOUTH
CENTRAL SUSSEX COUNTIES...
AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS TO 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM LAKE TELEMARK TO OXFORD...OR
ALONG A LINE EXTENDING FROM 12 MILES SOUTHEAST OF NEWTON TO 15 MILES
NORTHEAST OF EASTON...MOVING SOUTHEAST AT 10 MPH.
ANOTHER RAPIDLY INTENSIFYING THUNDERSTORM WAS AROUND BOONTON IN
MORRIS COUNTY.
SEVERE THUNDERSTORMS WILL BE NEAR...
NETCONG...MOUNT ARLINGTON AND HACKETTSTOWN BY 325 PM EDT...
LAKE TELEMARK...BUDD LAKE AND BRASS CASTLE BY 330 PM EDT...
PLEASANT VALLEY...WASHINGTON AND BEATTYESTOWN BY 335 PM EDT...
WHITE MEADOW LAKE BY 340 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4082 7433 4073 7462 4071 7474 4064 7493
4084 7510 4085 7506 4089 7500 4109 7450
4107 7448 4104 7449 4105 7445 4085 7431
TIME...MOT...LOC 1919Z 323DEG 8KT 4096 7455 4081 7497
$$
TFG000
WWUS51 KPHI 051942
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
342 PM EDT WED AUG 5 2009
NJC037-051951-
/O.CAN.KPHI.SV.W.0184.000000T0000Z-090805T2000Z/
SUSSEX NJ-
342 PM EDT WED AUG 5 2009
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL SUSSEX COUNTY IS
CANCELLED...
THE LINE OF STRONG TO SEVERE THUNDERSTORMS HAS MOVED OUT OF THE
COUNTY.
LAT...LON 4082 7433 4074 7460 4072 7474 4064 7493
4082 7508 4084 7507 4090 7464 4094 7453
4094 7447 4097 7441 4085 7431
TIME...MOT...LOC 1941Z 323DEG 7KT 4091 7440 4079 7497
$$
NJC019-027-041-052000-
/O.CON.KPHI.SV.W.0184.000000T0000Z-090805T2000Z/
WARREN NJ-MORRIS NJ-HUNTERDON NJ-
342 PM EDT WED AUG 5 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR NORTH CENTRAL HUNTERDON...CENTRAL MORRIS AND CENTRAL WARREN
COUNTIES...
AT 340 PM EDT...A LINE OF ISOLATED SEVERE THUNDERSTORMS CAPABLE
OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS TO 60
MPH. THE STRONGEST STORMS WERE LOCATED OVER BOONTON
AND OXFORD. THEY WERE MOVING SOUTHEAST AT 15 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
PLEASANT VALLEY AND WASHINGTON BY 350 PM EDT...
PARSIPPANY...LONG VALLEY...MORRIS PLAINS AND CHESTER BY 400 PM
EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4082 7433 4074 7460 4072 7474 4064 7493
4082 7508 4084 7507 4090 7464 4094 7453
4094 7447 4097 7441 4085 7431
TIME...MOT...LOC 1941Z 323DEG 7KT 4091 7440 4079 7497
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 59 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.