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 Aug 10, 2012, 10:05 AM EDT for 16 counties in New Jersey; 4 counties in Pennsylvania; Kent County, New Castle County, Sussex County, Delaware. It was in force for 115 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 10, 2012, 10:05 AM EDT (14:05 UTC)
- Expired
- Aug 10, 2012, 12:00 PM EDT
- In force
- 115 min
- Issued by
- NWS Philadelphia/Mount Holly
All 23 counties
Kent County, DE, New Castle County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Salem County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 27 km from the middle of the area, began a volume at 14:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 10, 10:30 AM EDT | MARINE TSTM WIND 43 | Lewes, DE | |
| Aug 10, 11:40 AM EDT | MARINE TSTM WIND 42 | Seaside Heights, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 2.1 hours before the alert went out and 188 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
- 1737 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
930
WWUS81 KPHI 101405
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1005 AM EDT FRI AUG 10 2012
DEZ001>004-NJZ001-007>010-012>027-PAZ055-062-067>071-101600-
ATLANTIC NJ-ATLANTIC COASTAL CAPE MAY NJ-BUCKS PA-CAMDEN NJ-
CAPE MAY NJ-CHESTER PA-COASTAL ATLANTIC NJ-COASTAL OCEAN NJ-
CUMBERLAND NJ-DELAWARE PA-DELAWARE BEACHES DE-EASTERN MONMOUTH NJ-
GLOUCESTER NJ-HUNTERDON NJ-INLAND SUSSEX DE-KENT DE-MERCER NJ-
MIDDLESEX NJ-MONROE PA-MONTGOMERY PA-MORRIS NJ-NEW CASTLE DE-
NORTHAMPTON PA-NORTHWESTERN BURLINGTON NJ-OCEAN NJ-PHILADELPHIA PA-
SALEM NJ-SOMERSET NJ-SOUTHEASTERN BURLINGTON NJ-SUSSEX NJ-WARREN NJ-
WESTERN MONMOUTH NJ-
1005 AM EDT FRI AUG 10 2012
...SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN AND LOCALIZED WIND
GUSTS...
AT 1000 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND THUNDERSTORMS NEAR AND ALONG A LINE EXTENDING FROM 10
MILES NORTH OF NEWTON TO 20 MILES SOUTHWEST OF GEORGETOWN...MOVING
EAST AT 25 MPH. OTHER SCATTERED THUNDERSTORMS HAD BROKEN OUT AHEAD
OF THE LINE.
THE MAIN LINE WILL BE NEAR WOODLYNNE AND BRIDGETON AROUND 1000
AM...SUSSEX AND WISSINOMING AROUND 1015 AM...VERNON VALLEY AND
VOORHEES AROUND 1030 AM...MONMOUTH JUNCTION AND SOUTH BRUNSWICK
AROUND 1045 AM...AND WINDSOR AND SOUTH BETHANY AROUND 1100 AM.
VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.
WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THE STRONGEST THUNDERSTORMS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THE STRONGEST
STORMS. DO NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES.
LAT...LON 3975 7409 3893 7495 3893 7496 3916 7490
3949 7557 3948 7558 3880 7508 3846 7504
3846 7569 3944 7577 4115 7510 4129 7483
4123 7443 4105 7449 4090 7427 4061 7443
4042 7401 4048 7400 4047 7398 4044 7397
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 10:51 PM EDT | Special Weather Statement | PHI | Sussex | 54 min |
| Aug 10, 4:00 AM EDT | Small Craft Advisory | PHI | 50 hr | |
| Aug 10, 8:41 AM EDT | Special Weather Statement | PHI | Gloucester, Hunterdon, Salem, Sussex, Warren | 94 min |
| Aug 10, 8:43 AM EDT | Special Weather Statement | PHI | Gloucester, Hunterdon, Salem, Sussex, Warren | 92 min |
| Aug 10, 9:08 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Cumberland, Gloucester, Hunterdon, Mercer and 5 more | 3 hr |
| Aug 10, 10:19 AM EDT | Special Marine Warning | PHI | 86 min | |
| Aug 10, 10:33 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more | 4 hr |
| Aug 10, 10:51 AM EDT | Special Marine Warning | PHI | 84 min | |
| Aug 10, 10:58 AM EDT | Special Marine Warning | PHI | 62 min | |
| Aug 10, 11:41 AM EDT | Special Marine Warning | PHI | 2 hr | |
| Aug 10, 12:10 PM EDT | Special Weather Statement | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more | 80 min |
| Aug 9, 8:24 PM EDT | Special Weather Statement | PHI | Berks, Lehigh | 66 min |
| Aug 9, 9:24 PM EDT | Special Weather Statement | PHI | Monroe | 96 min |
| Aug 9, 10:05 PM EDT | Special Weather Statement | PHI | Berks | 55 min |
| Aug 9, 10:09 PM EDT | Areal Flood Advisory | PHI | Monroe | 98 min |
| Aug 9, 10:25 PM EDT | Flash Flood Warning | PHI | Monroe | 83 min |
| Aug 10, 7:40 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Chester, Lehigh, Monroe, Montgomery and 1 more | 3 hr |
| Aug 10, 8:55 AM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 65 min |
| Aug 10, 10:14 AM EDT | Severe Thunderstorm Warning | PHI | Sussex | 61 min |
Nearby
Special Weather Statements in New Jersey, 2012Special Weather Statements in Pennsylvania, 2012Special Weather Statements in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.