Alert archive / New Jersey / Special Weather Statements in 2011
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at May 20, 2011, 11:59 AM EDT for 4 counties in New Jersey. It was in force for 46 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 20, 2011, 11:59 AM EDT (15:59 UTC)
- Expired
- May 20, 2011, 12:45 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 44 km from the middle of the area, began a volume at 16:00 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, 4.0 hours before the alert went out and 204 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
- 49 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
587
WWUS81 KPHI 201559
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1159 AM EDT FRI MAY 20 2011
DEZ001-NJZ012>020-027-PAZ069>071-201645-
BUCKS PA-CAMDEN NJ-DELAWARE PA-EASTERN MONMOUTH NJ-GLOUCESTER NJ-
MERCER NJ-MIDDLESEX NJ-NEW CASTLE DE-NORTHWESTERN BURLINGTON NJ-
OCEAN NJ-PHILADELPHIA PA-SALEM NJ-SOUTHEASTERN BURLINGTON NJ-
WESTERN MONMOUTH NJ-
1159 AM EDT FRI MAY 20 2011
...SHOWERS WITH HEAVY RAINFALL WILL AFFECT PORTIONS OF
SALEM...CAMDEN...GLOUCESTER...MERCER...MIDDLESEX...DELAWARE...
PHILADELPHIA...BUCKS...MONMOUTH...NEW CASTLE...OCEAN AND BURLINGTON
COUNTIES...
AT 1152 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SHOWERS
WITH HEAVY RAINFALL ALONG A LINE EXTENDING FROM 9 MILES SOUTH OF NEW
BRUNSWICK TO 2 MILES NORTHEAST OF CAMDEN TO 5 MILES EAST OF
WILMINGTON TO 6 MILES SOUTHWEST OF WILMINGTON...MOVING EAST AT 20 TO
30 MPH. THE SHOWERS WILL BE NEAR OLD BRIDGE...DEPTFORD...
CROSSWICKS...WOODBURY HEIGHTS AROUND 1205 PM...MOUNT
LAUREL...JACKSONVILLE...GREENTREE...WENONAH AROUND 1210
PM...MORGANVILLE AND STRATHMORE AROUND 1215 PM.
ONE OR 2 OF THESE SHOWERS MAY GROW INTO THUNDERSTORMS BY 1230 PM AS
THEY TRACK EASTWARD FROM THE INTERSTATE 95 CORRIDOR.
VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL CAUSE WATER
TO POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
LAT...LON 4022 7399 3973 7474 3964 7503 3964 7555
3969 7552 3964 7559 3964 7579 3973 7550
4042 7448 4041 7396
$$
FORECASTER:DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 8:36 PM EDT | Special Weather Statement | PHI | Atlantic | 54 min |
| May 19, 9:26 PM EDT | Special Weather Statement | PHI | Ocean | 94 min |
| May 19, 11:23 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Warren | 3 hr |
| May 20, 2:07 AM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| May 20, 3:30 AM EDT | Flash Flood Watch | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 15 hr |
| May 20, 2:52 AM EDT | Special Weather Statement | PHI | Monroe | 53 min |
| May 20, 5:45 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| May 20, 6:40 PM EDT | Special Weather Statement | PHI | Monroe | 65 min |
| May 19, 10:14 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 61 min |
| May 19, 11:11 PM EDT | Special Weather Statement | PHI | Caroline | 64 min |
| May 19, 11:27 PM EDT | Special Weather Statement | PHI | Talbot | 63 min |
| May 19, 9:29 PM EDT | Special Weather Statement | PHI | Sussex | 61 min |
| May 19, 11:48 PM EDT | Special Weather Statement | PHI | Sussex | 57 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.