Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

May 4, 2012Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at May 4, 2012, 5:41 AM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 64 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 4, 2012, 5:41 AM EDT (09:41 UTC)
Expired
May 4, 2012, 6:45 AM EDT
In force
64 min
Issued by
NWS Philadelphia/Mount Holly

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 118 km from the middle of the area, began a volume at 09:42 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 00:00Z, 9.7 hours before the alert went out and 145 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 00:00Z on 2012-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
436 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
62 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.

999 
WWUS81 KPHI 040941
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
541 AM EDT FRI MAY 4 2012

NJZ001-007-008-041045-
MORRIS NJ-SUSSEX NJ-WARREN NJ-
541 AM EDT FRI MAY 4 2012

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT MORRIS...SUSSEX AND 
WARREN COUNTIES...

AT 538 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
CLUSTER OF STRONG THUNDERSTORMS 16 MILES SOUTHWEST OF 
NEWTON...MOVING EAST AT 35 MPH. THE THUNDERSTORM WILL BE NEAR 
HOPE...ALLAMUCHY AROUND 545 AM...ALLAMUCHY...ALLAMUCHY-PANTHER 
VALLEY AROUND 600 AM...LAKE TELEMARK...HOPATCONG AROUND 615 
AM...KINNELON...BUTLER AROUND 630 AM...PEQUANNOCK TOWNSHIP AND 
LINCOLN PARK AROUND 645 AM.

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

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THE STORMS...AS WELL AS SMALL 
HAIL.

LAT...LON 4118 7439 4109 7449 4105 7449 4106 7445
      4102 7438 4101 7430 4098 7427 4090 7427
      4090 7433 4082 7432 4078 7436 4083 7509
      4086 7505 4089 7506 4112 7497 4116 7491
      4123 7486

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 4:21 AM EDTSpecial Weather StatementPHISussex54 min
May 4, 6:07 PM EDTSpecial Weather StatementPHISussex, Warren113 min
May 4, 4:37 AM EDTSpecial Weather StatementPHICarbon, Monroe53 min
May 4, 4:45 PM EDTSpecial Weather StatementPHICarbon45 min
May 4, 1:02 AM EDTSpecial Weather StatementPHICaroline, Queen Anne's, Talbot58 min
May 4, 12:56 PM EDTSevere Thunderstorm WarningPHIKent, Queen Anne's, Talbot15 min
May 4, 1:34 PM EDTSpecial Weather StatementPHITalbot26 min
May 4, 2:07 PM EDTSpecial Weather StatementPHICaroline38 min

Nearby

Special Weather Statements in New Jersey, 2012Every special weather statement in 2012

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.