Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

June 23, 2011Berks County, Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 23, 2011, 11:37 PM EDT for Berks County, Lehigh County, Pennsylvania. It was in force for 53 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: Jun 23, 2011, 11:37 PM EDT (03:37 UTC)
Expired: Jun 24, 2011, 12:30 AM EDT
In force: 53 min
Issued by: NWS Philadelphia/Mount Holly

Counties Berks County, PA, Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 126 km from the middle of the area, began a volume at 03:39 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, 3.6 hours before the alert went out and 229 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 442 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

392 
WWUS81 KPHI 240337
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1137 PM EDT THU JUN 23 2011

PAZ054-055-060>062-069-240430-
BERKS PA-BUCKS PA-CARBON PA-LEHIGH PA-MONROE PA-NORTHAMPTON PA-
1137 PM EDT THU JUN 23 2011

...STRONG THUNDERSTORMS WILL AFFECT BERKS...BUCKS...CARBON...
LEHIGH...MONROE AND NORTHAMPTON COUNTIES...

AT 1134 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 2 MILES EAST OF 
LEHIGHTON TO 9 MILES NORTH OF READING...MOVING EAST AT 20 MPH. THE 
THUNDERSTORMS WILL BE NEAR NEFFS...COFFEETOWN AROUND 1145 PM... 
BEERSVILLE...TOPTON AROUND MIDNIGHT...ZIONSVILLE...MACUNGIE AROUND 
1215 AM...FREEMANSBURG AND HELLERTOWN AROUND 1230 AM.

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

WIND GUSTS TO 40 MPH AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS.

LAT...LON 4083 7547 4075 7537 4065 7527 4060 7527
      4049 7532 4041 7594 4056 7589 4059 7581
      4076 7572 4086 7569

$$

HAYES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 11:28 PM EDT	Special Weather Statement	PHI	Warren	62 min
Jun 24, 12:08 AM EDT	Areal Flood Advisory	PHI	Warren	112 min
Jun 24, 12:24 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Warren	66 min
Jun 24, 12:45 AM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	2 hr
Jun 24, 1:22 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	53 min
Jun 24, 1:36 AM EDT	River Flood Warning	PHI	Morris, Passaic	11 hr
Jun 24, 3:41 AM EDT	Flash Flood Watch	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	16 hr
Jun 24, 5:48 AM EDT	Areal Flood Warning	PHI	Morris	10 hr
Jun 24, 11:42 AM EDT	Special Weather Statement	PHI	Monmouth	93 min
Jun 24, 12:09 PM EDT	Special Marine Warning	PHI		86 min
Jun 24, 12:34 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	26 min
Jun 24, 1:17 PM EDT	Special Weather Statement	PHI	Ocean	58 min
Jun 24, 1:32 PM EDT	Special Marine Warning	PHI		88 min
Jun 24, 1:33 PM EDT	Special Weather Statement	PHI	Hunterdon	57 min
Jun 24, 2:01 PM EDT	Areal Flood Advisory	PHI	Ocean	119 min
Jun 24, 2:01 PM EDT	Severe Thunderstorm Warning	PHI	Ocean	43 min
Jun 24, 3:00 PM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	60 min
Jun 24, 3:03 PM EDT	Special Weather Statement	PHI	Ocean	57 min
Jun 24, 3:57 PM EDT	Areal Flood Advisory	PHI	Ocean	2 hr
Jun 24, 4:20 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	55 min
Jun 24, 4:54 PM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Somerset	2 hr
Jun 24, 5:03 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Ocean, Somerset	72 min
Jun 24, 5:33 PM EDT	Special Marine Warning	PHI		117 min
Jun 24, 6:27 PM EDT	Special Weather Statement	PHI	Hunterdon	63 min
Jun 24, 7:13 PM EDT	Special Weather Statement	PHI	Warren	62 min
Jun 24, 7:16 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	38 min
Jun 23, 9:59 PM EDT	Special Weather Statement	PHI	Berks	61 min
Jun 23, 10:41 PM EDT	Special Weather Statement	PHI	Lehigh	64 min
Jun 23, 10:47 PM EDT	Special Weather Statement	PHI	Carbon	58 min
Jun 23, 10:56 PM EDT	Special Weather Statement	PHI	Lebanon	64 min
Jun 23, 10:58 PM EDT	Special Weather Statement	PHI	Berks	62 min
Jun 23, 11:19 PM EDT	Areal Flood Advisory	PHI	Lehigh, Northampton	116 min
Jun 23, 11:30 PM EDT	Special Weather Statement	PHI	Monroe	60 min
Jun 23, 11:46 PM EDT	Special Weather Statement	PHI	Berks	59 min
Jun 24, 12:26 PM EDT	Special Weather Statement	PHI	Berks	64 min
Jun 24, 1:41 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	64 min
Jun 24, 2:32 PM EDT	Severe Thunderstorm Warning	PHI	Monroe	43 min
Jun 24, 3:54 PM EDT	Special Weather Statement	PHI	Monroe	66 min
Jun 24, 3:35 PM EDT	Special Weather Statement	PHI	Sussex	55 min

Nearby

Special Weather Statements in Pennsylvania, 2011 Every 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.