Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 183, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 5, 2009, 1:46 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
- Aug 5, 2009, 1:46 PM EDT (17:46 UTC)
- Expired
- Aug 5, 2009, 2:45 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), 125 km from the middle of the area, began a volume at 17:49 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, 5.8 hours before the alert went out and 146 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 051746
SVRPHI
NJC027-037-041-051845-
/O.NEW.KPHI.SV.W.0183.090805T1746Z-090805T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
146 PM EDT WED AUG 5 2009
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
THIS INCLUDES THE CITY OF NEWTON...
NORTHEASTERN WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 245 PM EDT
* AT 144 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
FIVE POINTS...OR 11 MILES WEST OF NEWTON...AND MOVING SOUTHEAST
AT 25 MPH. OTHER THUNDERSTORMS OVER NORTHERN AND CENTRAL SUSSEX
COUNTY COULD ALSO GO SEVERE.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
FIVE POINTS AND CRANDON LAKES AROUND 155 PM EDT...
NEWTON AROUND 210 PM EDT...
ANDOVER AROUND 215 PM EDT...
LAKE MOHAWK AND STANHOPE AROUND 225 PM EDT...
HOPATCONG AROUND 230 PM EDT...
MOUNT ARLINGTON AROUND 235 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 4115 7442 4108 7449 4104 7449 4105 7444
4104 7443 4102 7443 4081 7477 4105 7502
4108 7497 4126 7451
TIME...MOT...LOC 1746Z 293DEG 21KT 4108 7495
$$
TFG1 follow-up statement
000
WWUS51 KPHI 051818
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
218 PM EDT WED AUG 5 2009
NJC027-037-041-051845-
/O.CON.KPHI.SV.W.0183.000000T0000Z-090805T1845Z/
SUSSEX NJ-WARREN NJ-MORRIS NJ-
218 PM EDT WED AUG 5 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR NORTHWESTERN MORRIS...NORTHEASTERN WARREN AND SOUTHERN SUSSEX
COUNTIES...
AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF STRONG TO SEVERE THUNDERSTORMS CAPABLE OF
PRODUCING WIND GUSTS UP TO 60 MPH AS WELL AS HAIL AS LARGE AS
PENNIES. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM
HIGHLAND LAKE TO 7 MILES WEST OF FRANKLIN TO 8 MILES WEST OF
FIVE POINTS...OR ALONG A LINE EXTENDING FROM 18 MILES NORTHEAST
OF NEWTON TO 7 MILES NORTH OF NEWTON TO 13 MILES WEST OF
NEWTON...MOVING SOUTHEAST AT 15 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
FRANKLIN BY 240 PM EDT...
NEWTON...OGDENSBURG...6 MILES NORTHWEST OF LAKE MOHAWK AND 6 MILES
NORTHWEST OF ANDOVER BY 245 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO HAIL AND DAMAGING WINDS...LIGHTNING IS OCCURRING
WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF
NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. LOCALLY
HEAVY DOWNPOURS ARE ALSO OCCURRING AND WILL CAUSE POOR DRAINAGE
FLOODING.
&&
LAT...LON 4107 7494 4121 7447 4115 7442 4108 7449
4104 7449 4105 7444 4104 7443 4102 7443
4081 7477 4105 7502
TIME...MOT...LOC 1816Z 339DEG 6KT 4116 7444 4115 7471
4104 7500
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 2:45 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 75 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.