Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

August 25, 20114 counties in New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 25, 2011, 6:47 PM EDT for 4 counties in New Jersey. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 25, 2011, 6:47 PM EDT (22:47 UTC)
Expired: Aug 25, 2011, 8:45 PM EDT
In force: 118 min
Issued by: NWS Philadelphia/Mount Holly

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

The radar

The Dover AFB radar (KDOX), 73 km from the middle of the area, began a volume at 22:47 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.8 hours before the alert went out and 172 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: 214 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 1221 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: -12 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.

975 
WWUS81 KPHI 252247
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
647 PM EDT THU AUG 25 2011

DEZ001-NJZ016>022-027-260045-
ATLANTIC NJ-CAMDEN NJ-CUMBERLAND NJ-GLOUCESTER NJ-NEW CASTLE DE-
NORTHWESTERN BURLINGTON NJ-OCEAN NJ-SALEM NJ-
SOUTHEASTERN BURLINGTON NJ-
647 PM EDT THU AUG 25 2011

...ISOLATED STRONG THUNDERSTORMS WILL AFFECT 
ATLANTIC...BURLINGTON...CAMDEN...CUMBERLAND...GLOUCESTER...NEW 
CASTLE...OCEAN AND SALEM COUNTIES...

AT 644 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES SOUTHWEST
OF CAMDEN TO 3 MILES NORTHEAST OF MIDDLETOWN...MOVING EAST AT 30 MPH.
THE THUNDERSTORMS WILL BE NEAR TURNERSVILLE...BLACKWOOD AROUND 700
PM...PINE VALLEY...PINE HILL AROUND 715 PM...MEDFORD LAKES...MEDFORD
AROUND 730 PM...TABERNACLE...LEISURETOWNE AROUND 745 PM...
PRESIDENTIAL LAKES AND ATSION AROUND 800 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.

WIND GUSTS TO AROUND 35 MPH ARE POSSIBLE WITH THESE STORMS.

LAT...LON 3928 7530 3934 7535 3933 7537 3943 7548
      3946 7555 3950 7557 3952 7554 3958 7554
      3958 7556 3946 7558 3942 7553 3937 7550
      3934 7556 3939 7577 3947 7578 4000 7489
      3985 7419

$$

TFG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 25, 8:42 AM EDT	Special Weather Statement	PHI	Warren	63 min
Aug 25, 10:00 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more	3 hr
Aug 25, 11:50 AM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	3 hr
Aug 25, 1:36 PM EDT	Special Marine Warning	PHI		24 min
Aug 25, 2:42 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	3 hr
Aug 25, 3:12 PM EDT	Special Marine Warning	PHI		63 min
Aug 25, 4:36 PM EDT	Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	68 hr
Aug 25, 4:41 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	94 min
Aug 25, 5:17 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	118 min
Aug 25, 5:26 PM EDT	Hurricane Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more	25 hr
Aug 25, 5:26 PM EDT	Tropical Storm Watch	PHI	Hunterdon, Mercer, Morris, Somerset	25 hr
Aug 25, 5:53 PM EDT	Flash Flood Warning	PHI	Cumberland	3 hr
Aug 25, 6:19 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May, Cumberland	116 min
Aug 25, 6:41 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	49 min
Aug 25, 6:43 PM EDT	Special Marine Warning	PHI		92 min
Aug 25, 6:55 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	3 hr
Aug 25, 7:26 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	2 hr
Aug 25, 7:56 PM EDT	Special Marine Warning	PHI		94 min
Aug 25, 7:19 AM EDT	Special Weather Statement	PHI	Berks, Lehigh	56 min
Aug 25, 8:15 AM EDT	Special Weather Statement	PHI	Monroe	60 min
Aug 25, 8:38 AM EDT	Special Weather Statement	PHI	Montgomery	67 min
Aug 25, 9:35 AM EDT	Special Weather Statement	PHI	Chester, Montgomery	55 min
Aug 25, 11:19 AM EDT	Areal Flood Advisory	PHI	Caroline, Cecil, Kent, Queen Anne's	3 hr
Aug 25, 1:24 PM EDT	Special Weather Statement	PHI	Caroline, Talbot	96 min
Aug 25, 2:38 PM EDT	Areal Flood Advisory	PHI	Caroline, Queen Anne's, Talbot	3 hr
Aug 25, 3:11 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	34 min
Aug 25, 3:47 PM EDT	Special Weather Statement	PHI	Kent	58 min
Aug 25, 7:27 PM EDT	Special Weather Statement	PHI	Sussex	93 min
Aug 25, 7:55 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.