Alert archive / New Jersey / Special Weather Statements in 2017

Special Weather Statement, NWS Philadelphia/Mount Holly

July 7, 2017Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 7, 2017, 10:17 PM EDT for Atlantic County, New Jersey. It was in force for 28 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
Jul 7, 2017, 10:17 PM EDT (02:17 UTC)
Expired
Jul 7, 2017, 10:45 PM EDT
In force
28 min
Issued by
NWS Philadelphia/Mount Holly

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 02:17 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 00:00Z, 2.3 hours before the alert went out and 183 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, Wallops Is Stn, VA at 00:00Z on 2017-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2017-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
7 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1594 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
-7 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

301 
WWUS81 KPHI 080217
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
1017 PM EDT FRI JUL 7 2017

NJZ022-024-025-080245-
Coastal Atlantic-Atlantic-Atlantic Coastal Cape May-
1017 PM EDT FRI JUL 7 2017

...A SHOWER WILL AFFECT SOUTHEASTERN ATLANTIC AND NORTHEASTERN CAPE
MAY COUNTIES...

At 1017 PM EDT, a shower was located over Pleasantville, or near
Atlantic City, moving southeast at 25 mph.

Winds up to 40 mph are possible with this shower.

Locations impacted include...
Atlantic City, Ocean City, Pleasantville, Somers Point, Ventnor City,
Brigantine, Northfield, Absecon, Margate City, Longport, Pomona and
Linwood.

LAT...LON 3936 7442 3932 7450 3931 7455 3929 7455
      3936 7467 3951 7455 3946 7440 3941 7440
      3943 7439 3942 7436 3943 7435 3944 7439
      3944 7433
TIME...MOT...LOC 0217Z 300DEG 20KT 3940 7453 

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:23 PM EDTSpecial Weather StatementPHICamden, Gloucester, Salem67 min
Jul 7, 10:19 PM EDTSpecial Marine WarningPHI56 min

Nearby

Special Weather Statements in New Jersey, 2017Every special weather statement in 2017

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.