Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 69, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2012, 4:31 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 59 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
- Jul 1, 2012, 4:31 PM EDT (20:31 UTC)
- Expired
- Jul 1, 2012, 5:30 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 113 km from the middle of the area, began a volume at 20:34 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 1, 1:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.5 hours before the alert went out and 132 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
- 254 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1757 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
805
WUUS51 KPHI 012031
SVRPHI
NJC027-037-041-012130-
/O.NEW.KPHI.SV.W.0069.120701T2031Z-120701T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
431 PM EDT SUN JUL 1 2012
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...
SOUTHERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
EAST CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 530 PM EDT
* AT 426 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS OF 60 MPH. THESE STORMS WERE
LOCATED FROM NEWTON TO HOPE...OR FROM NEWTON TO 15 MILES SOUTHWEST
OF NEWTON...AND MOVING EAST AT 25 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
FRANKLIN...GREAT MEADOWS AND GREAT MEADOWS-VIENNA AROUND 435 PM
EDT...
OGDENSBURG...LAKE MOHAWK...ANDOVER AND ALLAMUCHY AROUND 440 PM
EDT...
HACKETTSTOWN AROUND 445 PM EDT...
HOPATCONG AROUND 450 PM EDT...
GREEN POND AROUND 455 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...DANGEROUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4089 7428 4090 7433 4082 7432 4075 7439
4091 7508 4114 7464 4111 7448 4109 7450
4104 7450 4105 7445 4102 7443 4100 7430
4098 7428 4092 7429 4091 7427
TIME...MOT...LOC 2030Z 286DEG 22KT 4108 7466 4094 7492
$$
MPD1 follow-up statement
621
WWUS51 KPHI 012104
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
504 PM EDT SUN JUL 1 2012
NJC027-037-041-012130-
/O.CON.KPHI.SV.W.0069.000000T0000Z-120701T2130Z/
WARREN NJ-MORRIS NJ-SUSSEX NJ-
504 PM EDT SUN JUL 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTH CENTRAL SUSSEX...MORRIS AND EAST CENTRAL WARREN COUNTIES...
AT 456 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE AN AREA OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS OF 60 MPH. THESE STORMS WERE LOCATED
FROM GREEN POND TO STANHOPE TO HOPE...OR FROM ABOUT 15 MILES NORTHWEST
OF PATERSON TO ABOUT 10 MILES SOUTH OF NEWTON TO ABOUT 15 MILES
SOUTHWEST OF NEWTON...MOVING EAST AT 25 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
NETCONG AND LAKE TELEMARK BY 510 PM EDT...
WHITE MEADOW LAKE...WHARTON...KINNELON AND BUTLER BY 515 PM EDT...
ROCKAWAY...RIVERDALE...DOVER AND BUDD LAKE BY 520 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE STORM HAVE A HISTORY OF PRODUCING QUARTER SIZED HAIL...AND
HAVE THE POTENTIAL TO GENERATE DAMAGING WINDS. ALSO...DANGEROUS
CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE
INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN NEW JERSEY AND EASTERN PENNSYLVANIA.
&&
LAT...LON 4089 7428 4090 7433 4082 7432 4080 7436
4075 7439 4091 7508 4102 7473 4105 7445
4102 7443 4100 7430 4098 7428 4092 7429
4091 7427
TIME...MOT...LOC 2101Z 286DEG 22KT 4106 7438 4093 7467
4091 7492
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 3:11 PM EDT | Special Weather Statement | PHI | Warren | 79 min |
| Jul 1, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 65 min |
| Jul 1, 4:38 PM EDT | Special Weather Statement | PHI | Middlesex | 52 min |
| Jul 1, 5:31 PM EDT | Special Weather Statement | PHI | Morris | 59 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm warning in 2012
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.