Alert archive / New Jersey / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 3, NWS Philadelphia/Mount Holly

May 16, 2007Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 16, 2007, 2:37 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 38 min. 7 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
May 16, 2007, 2:37 PM EDT (18:37 UTC)
Expired
May 16, 2007, 3:15 PM EDT
In force
38 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 120 km from the middle of the area, began a volume at 18:38 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

TimeReportWhereRemark
May 16, 2:40 PM EDTTSTM WND DMGHackettstown, NJTREES AND WIRES REPORTED DOWN IN HACKETTSTOWN.
May 16, 2:45 PM EDTTSTM WND DMG2 Nw Hopatcong, NJTREES AND WIRES DOWN IN BYRAM TOWNSHIP.
May 16, 3:06 PM EDTTSTM WND DMGPompton Lakes, NJTREES DOWN ON RAMAPO AVENUE
May 16, 3:15 PM EDTTSTM WND DMGFranklin Lakes, NJTREE FELL ON AN INDIVIDUAL...1008 FRANKLIN ROAD
May 16, 3:15 PM EDTTSTM WND DMGPompton Lakes, NJTREES DOWN ON RAMAPO AVENUE
May 16, 3:15 PM EDTTSTM WND DMGRamsey, NJ61 MPH GUST...DOWNED TREES
May 16, 3:20 PM EDTTSTM WND DMGWanaque, NJNUMEROUS TRES DOWN

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.

IssuedProductOfficeLasted
May 16, 1:26 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.6 hours before the alert went out and 140 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2007-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2007-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -90 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1370 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-90 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KPHI 161838
SVRPHI
NJC027-037-041-161915-
/O.NEW.KPHI.SV.W.0003.070516T1837Z-070516T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
237 PM EDT WED MAY 16 2007

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SOUTHEASTERN SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  EAST CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 315 PM EDT

* AT 234 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR ALLAMUCHY-PANTHER VALLEY...
  OR ABOUT 33 MILES NORTHEAST OF BETHLEHEM...AND MOVING NORTHEAST AT
  60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOPATCONG AND LAKE MOHAWK BY 245 PM EDT...
  LAKE TELEMARK AND OGDENSBURG BY 250 PM EDT...
  KINNELON BY 255 PM EDT...

LAT...LON 4095 7487 4075 7497 4112 7387 4134 7402

$$

MPD

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 16, 3:05 PM EDTSevere Thunderstorm WarningPHIHunterdon, Somerset55 min
May 16, 4:53 PM EDTSevere Thunderstorm WarningPHIGloucester52 min
May 16, 5:05 PM EDTSevere Thunderstorm WarningPHICamden40 min
May 16, 5:20 PM EDTSevere Thunderstorm WarningPHISalem40 min
May 16, 5:22 PM EDTSevere Thunderstorm WarningPHIBurlington38 min
May 16, 5:49 PM EDTSpecial Marine WarningPHI116 min
May 16, 6:55 PM EDTSpecial Marine WarningPHI2 hr

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.