Alert archive / New Jersey / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

June 13, 20105 counties in New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 13, 2010, 2:58 PM EDT for 5 counties in New Jersey. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 13, 2010, 2:58 PM EDT (18:58 UTC)
Expired: Jun 13, 2010, 5:00 PM EDT
In force: 2 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 109 km from the middle of the area, began a volume at 18:58 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, 7.0 hours before the alert went out and 138 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: 26 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at Jun 13, 2:45 PM EDT, 13 minutes earlier.

Area forecast discussion, Jun 13, 2:45 PM EDT, 13 minutes before

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Hazardous weather outlook, Jun 13, 2:48 PM EDT, 10 minutes before

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In the hours before

Special weather statement, Jun 13, 1:39 PM EDT, 1 hour 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
139 PM EDT SUN JUN 13 2010

NJZ017>019-PAZ067-068-070-071-131840-
CAMDEN NJ-CHESTER PA-DELAWARE PA-GLOUCESTER NJ-MONTGOMERY PA-
NORTHWESTERN BURLINGTON NJ-PHILADELPHIA PA-
139 PM EDT SUN JUN 13 2010

...A STRONG THUNDERSTORM WILL AFFECT BURLINGTON...CAMDEN...CHESTER...
DELAWARE...GLOUCESTER...MONTGOMERY AND PHILADELPHIA COUNTIES...

AT 132 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 9 MILES NORTHEAST OF WEST CHESTER...MOVING
SOUTHEAST AT 20 TO 25 MPH. THE THUNDERSTORM WILL BE NEAR TROUT LAKE...
RADNOR TOWNSHIP AROUND 145 PM...MILLBOURNE...EAST LANSDOWNE AROUND
200 PM...MOUNT EPHRAIM...HADDON HEIGHTS AROUND 215 PM...BARRINGTON
AND MAGNOLIA AROUND 230 PM.

VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

DANGEROUS CLOUD TO GROUND LIGHTNING WILL ALSO ACCOMPANY THIS STORM.

LAT...LON 3994 7487 3968 7503 4000 7561 4020 7549

RPW

Special weather statement, Jun 13, 1:48 PM EDT, 1 hour 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
148 PM EDT SUN JUN 13 2010

NJZ001-007-008-PAZ055-131850-
MONROE PA-MORRIS NJ-SUSSEX NJ-WARREN NJ-
148 PM EDT SUN JUN 13 2010

...STRONG THUNDERSTORMS WILL AFFECT MONROE...MORRIS...SUSSEX AND
WARREN COUNTIES...

AT 145 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 18 MILES WEST OF
MONTAGUE TO 10 MILES SOUTHEAST OF NEWTON...MOVING EAST AT 20 TO 25
MPH. THE THUNDERSTORMS WILL BE NEAR HAINESVILLE...GREEN POND AROUND
200 PM...HIGH POINT...SUSSEX AROUND 215 PM...VERNON VALLEY AND
HIGHLAND LAKE AROUND 230 PM.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

DANGEROUS CLOUD TO GROUND LIGHTNING MAY ALSO ACCOMPANY THE STORMS.

LAT...LON 4120 7437 4108 7449 4104 7449 4105 7444
      4101 7440 4081 7476 4126 7522 4125 7513
      4120 7514 4113 7507 4109 7504 4109 7501
      4115 7491 4127 7484 4131 7480 4135 7468

RPW

Special weather statement, Jun 13, 2:06 PM EDT, 52 minutes before

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Special weather statement, Jun 13, 2:14 PM EDT, 44 minutes before

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Special weather statement, Jun 13, 2:19 PM EDT, 39 minutes before

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Special weather statement, Jun 13, 2:58 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 9:54 PM EDT	Special Weather Statement	PHI	Sussex	2 hr
Jun 13, 1:01 PM EDT	Special Weather Statement	PHI	Hunterdon	89 min
Jun 13, 1:39 PM EDT	Special Weather Statement	PHI	Camden	61 min
Jun 13, 1:48 PM EDT	Special Weather Statement	PHI	Sussex	62 min
Jun 13, 2:06 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	59 min
Jun 13, 2:19 PM EDT	Special Weather Statement	PHI	Atlantic	46 min
Jun 13, 3:16 PM EDT	Special Weather Statement	PHI	Burlington	74 min
Jun 13, 3:27 PM EDT	Special Weather Statement	PHI	Gloucester	78 min
Jun 13, 5:09 PM EDT	Special Weather Statement	PHI	Cape May	46 min
Jun 13, 6:29 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	61 min
Jun 12, 8:20 PM EDT	Special Weather Statement	PHI	Carbon, Northampton	85 min
Jun 13, 2:14 PM EDT	Special Weather Statement	PHI	Bucks	61 min
Jun 13, 4:59 PM EDT	Special Weather Statement	PHI	Bucks, Montgomery	61 min
Jun 13, 6:04 PM EDT	Special Weather Statement	PHI	Philadelphia	61 min
Jun 13, 6:34 PM EDT	Special Weather Statement	PHI	Berks	56 min
Jun 13, 3:44 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's	91 min

Nearby

Special Weather Statements in New Jersey, 2010 Every special weather statement in 2010

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.