Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 105, NWS Philadelphia/Mount Holly

July 18, 2012Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 18, 2012, 5:19 PM EDT for Monmouth County, New Jersey. It was in force for 41 min. 3 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: Jul 18, 2012, 5:19 PM EDT (21:19 UTC)
Expired: Jul 18, 2012, 6:00 PM EDT
In force: 41 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 57 km from the middle of the area, began a volume at 21:22 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
Jul 18, 5:22 PM EDT	HAIL 0.5	Middletown, NJ
Jul 18, 5:26 PM EDT	HAIL 1	Red Bank, NJ
Jul 18, 5:30 PM EDT	MARINE TSTM WIND 43	Sandy Hook, NJ

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
Jul 18, 12:41 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.3 hours before the alert went out and 115 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: 2129 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 1491 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 95 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.

518 
WUUS51 KPHI 182119
SVRPHI
NJC025-182200-
/O.NEW.KPHI.SV.W.0105.120718T2119Z-120718T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
519 PM EDT WED JUL 18 2012

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 600 PM EDT

* AT 518 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 RED BANK...OR 6 MILES
  SOUTHWEST OF SANDY HOOK...AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HIGHLANDS AROUND 525 PM EDT...
  LONG BRANCH AND 6 MILES NORTH OF ELBERON AROUND 530 PM EDT...

STRONG WINDS MAY OCCUR AHEAD OF THE RAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO DAMAGING WINDS...FREQUENT 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.

&&

LAT...LON 4020 7399 4024 7426 4044 7424 4046 7421
      4045 7420 4047 7417 4042 7401 4044 7400
      4047 7403 4048 7400 4044 7397 4040 7396
      4030 7396
TIME...MOT...LOC 2119Z 288DEG 25KT 4037 7405

$$

GORSE

2 follow-up statements

180 
WWUS51 KPHI 182123
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
523 PM EDT WED JUL 18 2012

NJC025-182200-
/O.CON.KPHI.SV.W.0105.000000T0000Z-120718T2200Z/
MONMOUTH NJ-
523 PM EDT WED JUL 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR NORTHEASTERN MONMOUTH COUNTY...

AT 518 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR RED BANK...OR 7 MILES SOUTHWEST OF SANDY HOOK...MOVING
EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MONMOUTH BEACH...SEA BRIGHT...LONG BRANCH AND WEST LONG BRANCH BY
  530 PM EDT...
  7 MILES NORTH OF LOCH ARBOUR AND 9 MILES NORTH OF OCEAN GROVE BY
  535 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS 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.

&&

LAT...LON 4020 7399 4024 7426 4044 7424 4046 7421
      4045 7420 4047 7417 4042 7401 4044 7400
      4047 7403 4048 7400 4044 7397 4040 7396
      4030 7396
TIME...MOT...LOC 2123Z 288DEG 25KT 4035 7404

$$

GORSE

811 
WWUS51 KPHI 182154
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
554 PM EDT WED JUL 18 2012

NJC025-182203-
/O.EXP.KPHI.SV.W.0105.000000T0000Z-120718T2200Z/
MONMOUTH NJ-
554 PM EDT WED JUL 18 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
WILL EXPIRE AT 600 PM EDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED, AND THE 
STRONGEST WINDS ARE EAST THE COAST. THEREFORE, THE WARNING WILL BE 
ALLOWED TO EXPIRE.

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.

LAT...LON 4020 7399 4024 7426 4044 7424 4046 7421
      4045 7420 4047 7417 4042 7401 4044 7400
      4047 7403 4048 7400 4044 7397 4040 7396
      4030 7396
TIME...MOT...LOC 2153Z 288DEG 25KT 4028 7378

$$

GORSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 12:51 PM EDT	Special Weather Statement	PHI	Sussex	54 min
Jul 18, 1:02 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	34 min
Jul 18, 1:11 PM EDT	Special Weather Statement	PHI	Sussex	34 min
Jul 18, 1:23 PM EDT	Special Weather Statement	PHI	Morris	37 min
Jul 18, 1:43 PM EDT	Areal Flood Advisory	PHI	Sussex	2 hr
Jul 18, 1:49 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	26 min
Jul 18, 1:53 PM EDT	Special Weather Statement	PHI	Mercer	37 min
Jul 18, 2:15 PM EDT	Special Weather Statement	PHI	Sussex	60 min
Jul 18, 2:23 PM EDT	Special Weather Statement	PHI	Warren	67 min
Jul 18, 2:46 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex	29 min
Jul 18, 3:00 PM EDT	Special Weather Statement	PHI	Monmouth	45 min
Jul 18, 3:04 PM EDT	Special Weather Statement	PHI	Warren	41 min
Jul 18, 3:13 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	47 min
Jul 18, 3:18 PM EDT	Special Marine Warning	PHI		42 min
Jul 18, 3:25 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	65 min
Jul 18, 3:26 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	49 min
Jul 18, 3:29 PM EDT	Special Weather Statement	PHI	Monmouth	46 min
Jul 18, 3:43 PM EDT	Special Weather Statement	PHI	Warren	47 min
Jul 18, 3:52 PM EDT	Flash Flood Warning	PHI	Warren	113 min
Jul 18, 3:59 PM EDT	Flash Flood Warning	PHI	Morris, Sussex	107 min
Jul 18, 4:03 PM EDT	Special Weather Statement	PHI	Hunterdon	42 min
Jul 18, 4:17 PM EDT	Special Weather Statement	PHI	Morris	43 min
Jul 18, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	32 min
Jul 18, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	45 min
Jul 18, 4:41 PM EDT	Special Weather Statement	PHI	Mercer	34 min
Jul 18, 4:53 PM EDT	Special Weather Statement	PHI	Mercer	22 min
Jul 18, 5:01 PM EDT	Special Weather Statement	PHI	Middlesex	29 min
Jul 18, 5:07 PM EDT	Special Marine Warning	PHI		38 min
Jul 18, 5:11 PM EDT	Special Weather Statement	PHI	Middlesex, Somerset	64 min
Jul 18, 5:12 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Somerset	81 min
Jul 18, 5:26 PM EDT	Special Marine Warning	PHI		34 min
Jul 18, 5:33 PM EDT	Special Weather Statement	PHI	Mercer	57 min
Jul 18, 5:44 PM EDT	Special Marine Warning	PHI		31 min
Jul 18, 6:00 PM EDT	Special Marine Warning	PHI		60 min
Jul 18, 6:09 PM EDT	Areal Flood Advisory	PHI	Burlington, Monmouth, Ocean	68 min
Jul 18, 6:32 PM EDT	Special Weather Statement	PHI	Ocean	43 min
Jul 18, 6:45 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	60 min
Jul 18, 6:51 PM EDT	Special Marine Warning	PHI		39 min
Jul 18, 6:51 PM EDT	Special Marine Warning	PHI		39 min
Jul 18, 7:17 PM EDT	Special Weather Statement	PHI	Cape May	58 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2012 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.