Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

July 18, 2011Sussex County, Warren County, New Jersey; Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 18, 2011, 7:01 PM EDT for Sussex County, Warren County, New Jersey; Monroe County, Pennsylvania. It was in force for 89 min. 1 report 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, 2011, 7:01 PM EDT (23:01 UTC)
Expired: Jul 18, 2011, 8:30 PM EDT
In force: 89 min
Issued by: NWS Philadelphia/Mount Holly

Counties Sussex County, NJ, Warren County, NJ, Monroe County, PA

The radar

The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 23:03 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
Jul 18, 7:12 PM EDT	TSTM WND DMG	Pocono Twp, PA	TREE DOWN ON HOUSE IN HENRYVILLE AREA. NO INJURIES REPORTED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.0 hours before the alert went out and 191 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: 239 J/kg
Mixed-layer CIN: -168 J/kg
Mixed-layer LCL: 1144 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 109 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.

494 
WWUS81 KPHI 182301
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
701 PM EDT MON JUL 18 2011

NJZ001-007-PAZ054-055-062-190030-
CARBON PA-MONROE PA-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ-
701 PM EDT MON JUL 18 2011

...STRONG THUNDERSTORMS WILL AFFECT CARBON...MONROE...NORTHAMPTON... 
SUSSEX AND WARREN COUNTIES...

AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SEVERAL STRONG THUNDERSTORMS ACROSS NORTHEASTERN PENNSYLVANIA, 
MOVING SOUTHEAST AT 20 MPH. 

WIND GUSTS TO 50 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.

EXPECT INTENSE LIGHTNING FROM THIS STORM. DO NOT SEEK SHELTER UNDER
TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A THUNDERSTORM
APPROACHES.

LAT...LON 4122 7449 4081 7485 4076 7492 4100 7552
      4110 7569 4115 7562 4121 7557 4125 7550
      4126 7515 4124 7514 4116 7516 4115 7509
      4109 7503 4111 7495 4115 7491 4127 7485

$$

NIERENBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:07 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	83 min
Jul 18, 6:04 PM EDT	Special Weather Statement	PHI	Carbon, Monroe, Northampton	56 min
Jul 18, 6:15 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	75 min

Nearby

Special Weather Statements in New Jersey, 2011 Special Weather Statements in Pennsylvania, 2011 Every special weather statement in 2011

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.