Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

August 6, 2011Pike County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 6, 2011, 10:14 PM EDT for Pike County, Pennsylvania. It was in force for 61 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
Aug 6, 2011, 10:14 PM EDT (02:14 UTC)
Expired
Aug 6, 2011, 11:15 PM EDT
In force
61 min
Issued by
NWS Philadelphia/Mount Holly

County Pike County, PA

The radar

The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 02:17 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, 2.2 hours before the alert went out and 174 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-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2011-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2011-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
5 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
889 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

110 
WWUS81 KPHI 070214
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1014 PM EDT SAT AUG 6 2011

NJZ001-PAZ055-070315-
MONROE PA-SUSSEX NJ-
1014 PM EDT SAT AUG 6 2011

...SHOWERS WITH HEAVY RAINFALL WILL AFFECT SUSSEX AND MONROE
COUNTIES...

AT 1008 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS WITH HEAVY RAINFALL ALONG A LINE EXTENDING FROM MONTAGUE TO
15 MILES SOUTHWEST OF MONTAGUE TO 2 MILES NORTH OF MOUNT 
POCONO...MOVING EAST AT 25 MPH. THE VERY HEAVY SHOWERS WILL BE NEAR 
HIGH POINT AND WANTAGE AROUND 1030 PM AND HAINESVILLE AROUND 1115 PM.

VERY HEAVY RAINFALL WILL OCCUR OVER AREAS THAT RECEIVED HEAVY RAINS
EARLIER. BE ALERT FOR THE POSSIBILITY OF LOCALIZED FLOODING.

RAINFALL AT MOUNT POCONO THIS AFTERNOON AND EVENING WAS JUST UNDER 2 
INCHES WITH HOURLY RAINFALL IN THIS BATCH OF EVENING SHOWERS OF UP 
TO 1 INCH.

THIS WILL CAUSE POOR DRAINAGE STREET FLOODING.  SLOW DOWN IN THESE 
HEAVY SHOWERS TO AVOID HYDROPLANING.    

LAT...LON 4127 7451 4118 7515 4115 7516 4113 7553
      4122 7488 4131 7480 4135 7471 4135 7468

$$

FORECASTER:  DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:49 PM EDTFlood WatchPHIMorris, Sussex, Warren9 hr
Aug 6, 10:33 PM EDTAreal Flood AdvisoryPHIWarren6 hr
Aug 7, 12:42 AM EDTSpecial Weather StatementPHIMorris63 min
Aug 7, 1:32 AM EDTAreal Flood AdvisoryPHIHunterdon, Warren3 hr
Aug 7, 1:54 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Sussex, Warren3 hr
Aug 7, 3:56 AM EDTSpecial Weather StatementPHIHunterdon64 min
Aug 7, 4:45 AM EDTSpecial Weather StatementPHIHunterdon, Somerset60 min
Aug 7, 5:10 AM EDTAreal Flood AdvisoryPHIMorris, Somerset81 min
Aug 7, 5:30 AM EDTSpecial Weather StatementPHIMercer, Middlesex60 min
Aug 7, 6:03 AM EDTFlash Flood WatchPHISussex, Warren14 hr
Aug 7, 3:25 PM EDTSpecial Weather StatementPHIMercer35 min
Aug 7, 3:34 PM EDTSpecial Weather StatementPHIWarren26 min
Aug 7, 3:48 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Monmouth, Ocean27 min
Aug 7, 4:19 PM EDTSpecial Weather StatementPHIMonmouth41 min
Aug 7, 5:02 PM EDTSpecial Weather StatementPHISussex28 min
Aug 7, 6:49 PM EDTSpecial Weather StatementPHISussex41 min
Aug 7, 7:11 PM EDTSpecial Weather StatementPHISussex49 min
Aug 7, 7:35 PM EDTSpecial Weather StatementPHISussex25 min
Aug 6, 10:06 PM EDTSpecial Weather StatementPHIBerks84 min
Aug 7, 12:48 AM EDTSpecial Weather StatementPHIMontgomery57 min
Aug 7, 2:29 AM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton3 hr
Aug 7, 3:07 PM EDTSpecial Weather StatementPHIPhiladelphia23 min
Aug 7, 7:20 PM EDTSpecial Weather StatementPHIMonroe40 min
Aug 7, 3:02 PM EDTSpecial Weather StatementPHICecil28 min
Aug 7, 4:50 PM EDTSpecial Weather StatementPHICecil40 min
Aug 7, 5:39 PM EDTSpecial Weather StatementPHICecil36 min
Aug 7, 6:31 PM EDTSpecial Weather StatementPHIKent29 min

Nearby

Special Weather Statements in Pennsylvania, 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.