Alert archive / New Jersey / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 101, NWS Philadelphia/Mount Holly

June 26, 2009Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2009, 6:45 PM EDT for Monmouth County, New Jersey. It was in force for 30 min. 4 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: Jun 26, 2009, 6:45 PM EDT (22:45 UTC)
Expired: Jun 26, 2009, 7:15 PM EDT
In force: 30 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 22:48 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
Jun 26, 6:55 PM EDT	TSTM WND GST 65	Sandy Hook, NJ	65 MPH MEASURED IN SANDY HOOK.
Jun 26, 7:12 PM EDT	TSTM WND DMG	2 N Elberon, NJ	TREES DOWN IN LONG BRANCH TWP.
Jun 26, 7:12 PM EDT	NON-TSTM WND DMG	2 N Elberon, NJ	TREES DOWN IN LONG BRANCH TWP.
Jun 26, 7:15 PM EDT	TSTM WND DMG	1 Nw Elberon, NJ	NUMEROUS LARGE TREE LIMBS DOWN IN WEST LONGBRANCH.

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
Jun 26, 2:42 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 112 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 4 J/kg
Mixed-layer CIN: -380 J/kg
Mixed-layer LCL: 1367 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 262245
SVRPHI
NJC025-262315-
/O.NEW.KPHI.SV.W.0101.090626T2245Z-090626T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
645 PM EDT FRI JUN 26 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITY OF SANDY HOOK...

* UNTIL 715 PM EDT

* AT 645 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  MIDDLETOWN...OR 8 MILES WEST OF SANDY HOOK...AND MOVING EAST AT 30
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LINCROFT AROUND 650 PM EDT...
  RED BANK AROUND 655 PM EDT...
  HIGHLANDS AND SANDY HOOK AROUND 700 PM EDT...
  7 MILES NORTH OF LONG BRANCH AROUND 705 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.

&&

LAT...LON 4027 7398 4033 7424 4046 7418 4045 7415
      4046 7412 4041 7400 4042 7399 4044 7402
      4047 7402 4047 7399 4046 7398 4041 7396
      4032 7396
TIME...MOT...LOC 2245Z 282DEG 24KT 4042 7413

$$

SZATKOWSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	86 min
Jun 26, 4:51 PM EDT	Severe Thunderstorm Warning	PHI	Warren	69 min
Jun 26, 5:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	78 min
Jun 26, 6:39 PM EDT	Special Marine Warning	PHI		51 min
Jun 26, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Somerset	41 min
Jun 26, 7:10 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	50 min
Jun 26, 7:18 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Ocean	72 min
Jun 26, 7:28 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	92 min
Jun 26, 7:45 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	65 min
Jun 26, 7:56 PM EDT	Special Marine Warning	PHI		64 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2009 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.