Alert archive / Pennsylvania / Special Weather Statements in 2011
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 1, 2011, 1:35 PM EDT for Morris County, Sussex County, Warren County, New Jersey; 4 counties in Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2011, 1:35 PM EDT (17:35 UTC)
- Expired
- Aug 1, 2011, 4:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 136 km from the middle of the area, began a volume at 17:36 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 5.6 hours before the alert went out and 175 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
- 307 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1512 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -192 m²/s²
- 0-3 km storm-relative helicity
- -166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.5
The text
As transmitted, in the capitals the NWS used until 2016.
793
WWUS81 KPHI 011735
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
135 PM EDT MON AUG 1 2011
NJZ001-007>010-PAZ054-055-060>062-069-012030-
BERKS PA-BUCKS PA-CARBON PA-HUNTERDON NJ-LEHIGH PA-MONROE PA-
MORRIS NJ-NORTHAMPTON PA-SOMERSET NJ-SUSSEX NJ-WARREN NJ-
135 PM EDT MON AUG 1 2011
...A CLUSTER OF STRONG AND BECOMING SEVERE THUNDERSTORMS WILL AFFECT
BERKS...BUCKS...CARBON...HUNTERDON...LEHIGH...MONROE...MORRIS...
NORTHAMPTON...SOMERSET...SUSSEX AND WARREN COUNTIES DURING THE
MIDDLE AND LATE AFTERNOON...
AT 124 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF SHOWERS AND STRONG THUNDERSTORMS WITH THE LEADING EDGE
ALONG A LINE EXTENDING FROM 55 MILES NORTHWEST OF SCRANTON TO 34
MILES NORTHWEST OF SCRANTON TO 18 MILES NORTHWEST OF WILKES-BARRE TO
41 MILES WEST OF WILKES-BARRE TO 51 MILES WEST OF WILKES-BARRE TO 80
MILES WEST OF WILKES-BARRE...MOVING SOUTHEAST AT 25 MPH. THE
THUNDERSTORMS WILL BE NEAR BLAKESLEE...WHITE HAVEN AROUND 245
PM...TOBYHANNA...POCONO RACEWAY AROUND 300 PM...SCOTRUN...REEDERS
AROUND 315 PM...STORMVILLE...SKYTOP AROUND 330 PM...SAYLORSBURG AND
ROSSLAND AROUND 345 PM.
WIND GUSTS TO 40 MPH ARE LIKELY WITH THESE STORMS. THESE STORMS ARE
ALSO MOVING INTO AN AIR MASS THAT IS MORE UNSTABLE AND A FEW HAVE
THE POTENTIAL TO BECOME SEVERE AS THE AFTERNOON CONTINUES.
SEVERE OR NOT, EXPECT INTENSE LIGHTNING FROM THESE STORMS. DO NOT
SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.
ISOLATED SHOWERS AND THUNDERSTORMS COULD DEVELOP PRECEDING THIS
CLUSTER BEFORE 3 PM.
LAT...LON 4097 7455 4064 7454 4054 7504 4042 7590
4054 7618 4059 7603 4064 7600 4074 7578
4091 7600 4100 7575 4110 7577 4113 7564
4123 7554 4126 7514 4116 7516 4109 7501
4115 7491 4131 7480 4135 7469
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 10:13 PM EDT | Special Weather Statement | PHI | Hunterdon, Middlesex, Somerset | 62 min |
| Jul 31, 10:58 PM EDT | Special Weather Statement | PHI | Morris | 62 min |
| Aug 1, 1:49 AM EDT | Special Marine Warning | PHI | 56 min | |
| Aug 1, 1:50 AM EDT | Special Weather Statement | PHI | Monmouth | 55 min |
| Aug 1, 2:11 PM EDT | Special Weather Statement | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 94 min |
| Aug 1, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 29 min |
| Aug 1, 4:09 PM EDT | Special Weather Statement | PHI | Camden | 66 min |
| Aug 1, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 69 min |
| Aug 1, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 70 min |
| Aug 1, 6:03 PM EDT | Special Marine Warning | PHI | 57 min | |
| Aug 1, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 59 min |
| Aug 1, 6:17 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester | 3 hr |
| Aug 1, 6:20 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 46 min |
| Aug 1, 6:47 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Gloucester, Salem | 73 min |
| Aug 1, 7:01 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cumberland, Gloucester, Salem | 119 min |
| Aug 1, 7:07 PM EDT | Special Marine Warning | PHI | 83 min | |
| Aug 1, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 59 min |
| Aug 1, 7:17 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jul 31, 10:00 PM EDT | Special Weather Statement | PHI | Chester | 60 min |
| Aug 1, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Aug 1, 3:46 PM EDT | Special Weather Statement | PHI | Berks | 89 min |
| Aug 1, 4:00 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 75 min |
| Aug 1, 4:33 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 87 min |
| Aug 1, 4:39 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 42 min |
| Aug 1, 5:11 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery, Philadelphia | 2 hr |
| Aug 1, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Philadelphia | 53 min |
| Aug 1, 4:07 PM EDT | Special Weather Statement | PHI | Cecil | 53 min |
| Aug 1, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 48 min |
| Aug 1, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 78 min |
| Aug 1, 6:12 PM EDT | Areal Flood Advisory | PHI | Kent, Queen Anne's | 2 hr |
| Aug 1, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 18 min |
| Aug 1, 7:31 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's | 119 min |
| Aug 1, 7:46 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 38 min |
| Aug 1, 3:15 PM EDT | Special Weather Statement | PHI | Sussex | 45 min |
| Aug 1, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 37 min |
| Aug 1, 3:59 PM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
Nearby
Special Weather Statements in Pennsylvania, 2011Special 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.