Alert archive / New Jersey / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

July 31, 2016Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 31, 2016, 2:41 PM EDT for Mercer County, New Jersey. It was in force for 49 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 31, 2016, 2:41 PM EDT (18:41 UTC)
Expired: Jul 31, 2016, 3:30 PM EDT
In force: 49 min
Issued by: NWS Philadelphia/Mount Holly

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 18:41 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, 6.7 hours before the alert went out and 156 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: 325 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

184 
WWUS81 KPHI 311841
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
241 PM EDT SUN JUL 31 2016
 
NJZ010-012-015-311930-
SOMERSET-MERCER-MIDDLESEX-
241 PM EDT SUN JUL 31 2016

...MODERATE TO HEAVY RAIN FALLING ACROSS NORTHEASTERN MERCER...AND
SOUTHWESTERN MIDDLESEX COUNTIES...

AT 236 PM EDT...MODERATE TO HEAVY RAIN EXITED SOMERSET COUNTY AND
WAS NOW INTO PORTIONS OF MERCER AND MIDDLESEX COUNTIES. THE SHOWERS
PRODUCING THIS RAIN WERE MOVING SOUTHEAST AT LESS THAN 10 MPH.

THIS RAIN IS FALLING OVER THE SAME AREAS THAT RECEIVED HEAVY RAIN
YESTERDAY. UP TO AN INCH OF RAIN CAN BE EXPECTED THE NEXT HOUR OR
TWO.

LOCATIONS IMPACTED INCLUDE...
SOUTH BRUNSWICK...PRINCETON...JAMESBURG...CRANBURY...ROCKY HILL...
KENDALL PARK...WHITTINGHAM...DAYTON...PLAINSBORO CENTER...
CLEARBROOK PARK...PRINCETON MEADOWS...EDINBURG...KINGSTON...
NORTH BRUNSWICK TOWNSHIP...ROSSMOOR...MONMOUTH JUNCTION...
CONCORDIA...HEATHCOTE...PRINCETON JUNCTION AND PRINCETON NORTH.

LAT...LON 4037 7470 4045 7453 4033 7440 4024 7462
TIME...MOT...LOC 1836Z 329DEG 6KT 4034 7459 
$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 8:15 PM EDT	Areal Flood Advisory	PHI	Hunterdon	4 hr
Jul 30, 10:19 PM EDT	Areal Flood Warning	PHI	Mercer, Middlesex, Somerset	7 hr
Jul 30, 10:32 PM EDT	Areal Flood Warning	PHI	Hunterdon	4 hr
Jul 30, 10:54 PM EDT	Special Weather Statement	PHI	Cumberland, Gloucester, Salem	36 min
Jul 31, 6:31 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Hunterdon, Mercer	44 min
Jul 31, 6:49 AM EDT	River Flood Warning	PHI	Somerset	25 hr
Jul 31, 7:04 AM EDT	Flash Flood Warning	PHI	Burlington, Ocean	4 hr
Jul 31, 7:19 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Mercer	3 hr
Jul 31, 7:22 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	4 hr
Jul 31, 7:48 AM EDT	Areal Flood Advisory	PHI	Burlington, Ocean	4 hr
Jul 31, 8:21 AM EDT	Flash Flood Warning	PHI	Hunterdon	7 hr
Jul 31, 9:59 AM EDT	Special Marine Warning	PHI		61 min
Jul 31, 10:08 AM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Jul 31, 10:17 AM EDT	Areal Flood Advisory	PHI	Middlesex, Morris, Somerset	4 hr
Jul 31, 11:04 AM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	9 hr
Jul 31, 11:53 AM EDT	Flash Flood Warning	PHI	Hunterdon, Somerset	4 hr
Jul 31, 12:28 PM EDT	Flash Flood Watch	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more	38 hr
Jul 31, 12:44 PM EDT	Areal Flood Advisory	PHI	Monmouth	4 hr
Jul 31, 2:06 PM EDT	Flash Flood Warning	PHI	Monmouth	4 hr
Jul 31, 2:53 PM EDT	Special Weather Statement	PHI	Ocean	22 min
Jul 31, 7:34 PM EDT	Areal Flood Advisory	PHI	Warren	4 hr
Jul 31, 12:34 PM EDT	Areal Flood Advisory	PHI	Monroe, Northampton	4 hr
Jul 31, 6:35 PM EDT	Areal Flood Advisory	PHI	Monroe	4 hr
Jul 30, 9:07 PM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent, Queen Anne's, Talbot	38 min
Jul 30, 9:46 PM EDT	Special Weather Statement	PHI	Kent, Queen Anne's, Talbot	44 min

Nearby

Special Weather Statements in New Jersey, 2016 Every special weather statement in 2016

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.