Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

May 7, 2011Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at May 7, 2011, 3:00 PM EDT for Sussex County, New Jersey. It was in force for 90 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
May 7, 2011, 3:00 PM EDT (19:00 UTC)
Expired
May 7, 2011, 4:30 PM EDT
In force
90 min
Issued by
NWS Philadelphia/Mount Holly

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 19:01 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 151 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2011-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2011-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
9 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1218 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
104 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.

163 
WWUS81 KPHI 071900
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 PM EDT SAT MAY 7 2011

NJZ001-008-072030-
MORRIS NJ-SUSSEX NJ-
300 PM EDT SAT MAY 7 2011

...A STRONG SHOWER...POSSIBLY A THUNDERSTORM WILL AFFECT MORRIS AND 
SUSSEX COUNTIES...

AT 257 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
STRONG SHOWER, POSSIBLY A THUNDERSTORM 10 MILES SOUTHWEST OF 
MONTAGUE...MOVING SOUTHEAST AT 20 MPH. THE THUNDERSTORM WILL BE NEAR 
CRANDON LAKES...BRANCHVILLE AROUND 315 PM...NEWTON...SUSSEX AROUND 
330 PM...ANDOVER...FRANKLIN AROUND 345 PM...LAKE MOHAWK...HOPATCONG 
AROUND 400 PM...LAKE TELEMARK AND WHARTON AROUND 415 PM.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM. 
ALSO EXPECT ABOUT A 10 TO 15 DEGREE DROP IN TEMPERATURE AS THE 
SHOWER OR THUNDERSTORM MOVES THROUGH.

LAT...LON 4115 7442 4109 7449 4104 7449 4105 7444
      4101 7440 4082 7463 4111 7496 4120 7488
      4122 7488 4127 7484 4131 7480

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 9:54 PM EDTSpecial Marine WarningPHI96 min
May 7, 3:11 PM EDTSpecial Weather StatementPHIWarren64 min
May 7, 5:20 PM EDTSpecial Weather StatementPHICamden, Hunterdon, Mercer, Somerset85 min
May 7, 6:52 PM EDTSpecial Marine WarningPHI53 min
May 7, 12:03 PM EDTSpecial Weather StatementPHIMonroe57 min
May 7, 1:13 PM EDTSpecial Weather StatementPHICarbon, Monroe92 min
May 7, 4:29 PM EDTSpecial Weather StatementPHIBucks, Delaware, Montgomery, Philadelphia91 min
May 6, 9:17 PM EDTSpecial Weather StatementPHIKent, Queen Anne's58 min

Nearby

Special Weather Statements in New Jersey, 2011Every 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.