Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

August 9, 2011Camden County, Gloucester County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 9, 2011, 1:02 PM EDT for Camden County, Gloucester County, Salem County, New Jersey. It was in force for 58 min. 2 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: Aug 9, 2011, 1:02 PM EDT (17:02 UTC)
Expired: Aug 9, 2011, 2:00 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly

Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 17:04 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
Aug 9, 1:15 PM EDT	TSTM WND DMG	Woodstown, NJ	TELEPHONE WIRES DOWN IN WOODSTOWN
Aug 9, 1:30 PM EDT	TSTM WND DMG	Mantua, NJ	TREE DOWN IN MANTUA TWP

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.0 hours before the alert went out and 87 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: 210 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1178 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

749 
WWUS81 KPHI 091702
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
102 PM EDT TUE AUG 9 2011

NJZ016>018-022-091800-
ATLANTIC NJ-CAMDEN NJ-GLOUCESTER NJ-SALEM NJ-
102 PM EDT TUE AUG 9 2011

...A STRONG THUNDERSTORM WILL AFFECT ATLANTIC...CAMDEN...GLOUCESTER
AND SALEM COUNTIES...

AT 100 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES SOUTHEAST OF WILMINGTON...MOVING EAST AT
25 MPH. THE THUNDERSTORM WILL BE NEAR WOODSTOWN...SWEDESBORO AROUND
115 PM...PITMAN...MULLICA HILL AROUND 130 PM...MONROE TOWNSHIP...
CLAYTON AROUND 145 PM AND ATCO AROUND 200 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.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.

EXPECT SMALL HAIL AND FREQUENT...DANGEROUS CLOUD TO GROUND LIGHTNING
FROM THIS STORM.

LAT...LON 3947 7490 3948 7496 3956 7506 3951 7507
      3953 7521 3955 7524 3954 7525 3959 7551
      3977 7543 3982 7492 3979 7491 3977 7488

$$

HEAVENER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 12:18 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester	57 min
Aug 9, 12:32 PM EDT	Tornado Warning	PHI	Gloucester	28 min
Aug 9, 1:08 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	67 min
Aug 9, 1:17 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester	58 min
Aug 9, 2:16 PM EDT	Special Weather Statement	PHI	Atlantic	59 min
Aug 9, 2:22 PM EDT	Areal Flood Advisory	PHI	Camden, Cumberland, Gloucester, Salem	3 hr
Aug 9, 2:22 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	53 min
Aug 9, 2:53 PM EDT	Areal Flood Advisory	PHI	Middlesex, Morris, Somerset	3 hr
Aug 9, 3:27 PM EDT	Special Weather Statement	PHI	Atlantic	63 min
Aug 9, 4:13 PM EDT	Special Marine Warning	PHI		92 min
Aug 9, 5:48 PM EDT	Special Weather Statement	PHI	Gloucester	87 min
Aug 9, 6:54 PM EDT	Special Weather Statement	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	81 min
Aug 9, 11:46 AM EDT	Special Weather Statement	PHI	Chester, Delaware, Montgomery	59 min
Aug 9, 12:40 PM EDT	Special Weather Statement	PHI	Cecil	65 min
Aug 9, 5:13 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's	62 min
Aug 9, 6:35 PM EDT	Special Weather Statement	PHI	Talbot	85 min

Nearby

Special Weather Statements in New Jersey, 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.