Alert archive / New Jersey / Special Weather Statements in 2012
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Sep 28, 2012, 11:39 PM EDT for Mercer County, Middlesex County, Monmouth County, New Jersey. It was in force for 66 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
- Sep 28, 2012, 11:39 PM EDT (03:39 UTC)
- Expired
- Sep 29, 2012, 12:45 AM EDT
- In force
- 66 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 45 km from the middle of the area, began a volume at 03:38 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, 3.7 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 603 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 649 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
928
WWUS81 KPHI 290339
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1139 PM EDT FRI SEP 28 2012
NJZ012-013-015-019-020-PAZ069-290445-
BUCKS PA-MERCER NJ-MIDDLESEX NJ-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-
WESTERN MONMOUTH NJ-
1139 PM EDT FRI SEP 28 2012
...AN AREA OF SHOWERS PRODUCING HEAVY RAINFALL WILL AFFECT MERCER...
BUCKS...MIDDLESEX...BURLINGTON...MONMOUTH AND OCEAN COUNTIES...
AT 1138 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SHOWERS PRODUCING HEAVY RAINFALL 10 MILES SOUTHEAST OF
TRENTON...MOVING NORTHEAST AT 20 MPH. THE SHOWERS WILL BE NEAR
MERCERVILLE-HAMILTON SQUARE...LAWRENCEVILLE AROUND 1145 PM...
ALLENTOWN...CREAM RIDGE...WOODRUFF AROUND 1150 PM...IMLAYSTOWN...
WINDSOR...EDINBURG AROUND 1155 PM...PRINCETON JUNCTION AND PRINCETON
AROUND MIDNIGHT.
VERY HEAVY RAIN WILL FALL FROM THE SHOWERS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.
LAT...LON 4022 7407 3988 7467 4023 7495 4039 7466
4038 7461 4042 7458 4044 7453 4050 7446
4059 7431 4051 7425 4047 7425 4045 7420
4027 7406
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 8:15 PM EDT | Special Weather Statement | PHI | Monmouth | 60 min |
| Sep 29, 12:24 AM EDT | Special Marine Warning | PHI | 66 min | |
| Sep 28, 11:47 PM EDT | Special Weather Statement | PHI | Sussex | 58 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.