Alert archive / Pennsylvania / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

July 1, 2016Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 1, 2016, 2:47 PM EDT for Lehigh County, Pennsylvania. It was in force for 58 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: Jul 1, 2016, 2:47 PM EDT (18:47 UTC)
Expired: Jul 1, 2016, 3:45 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly

County Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 104 km from the middle of the area, began a volume at 18:51 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, 6.8 hours before the alert went out and 218 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: 97 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

841 
WWUS81 KPHI 011847
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
247 PM EDT FRI JUL 1 2016
 
PAZ060-061-103-105-011945-
BERKS-WESTERN MONTGOMERY-LEHIGH-UPPER BUCKS-
247 PM EDT FRI JUL 1 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN NORTHAMPTON...
SOUTHEASTERN LEHIGH...EAST CENTRAL BERKS...NORTHWESTERN BUCKS AND
NORTHWESTERN MONTGOMERY COUNTIES...

AT 247 PM EDT...A STRONG THUNDERSTORM WAS NEAR BECHTELSVILLE...OR 15
MILES SOUTHWEST OF ALLENTOWN...MOVING EAST AT 25 MPH.

WIND GUSTS UP TO 40 MPH AND DIME SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
EMMAUS...QUAKERTOWN...PERKASIE...EAST GREENVILLE...DUBLIN...BALLY...
BECHTELSVILLE...GREEN LANE...LYONS...PLEASANT VALLEY...SPRINGTOWN...
GERYVILLE...ZIONSVILLE...GILBERTSVILLE...ANCIENT OAKS...TELFORD...
SELLERSVILLE...BOYERTOWN...PENNSBURG AND MACUNGIE.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4057 7539 4054 7533 4058 7527 4059 7524
      4034 7516 4029 7570 4048 7576
TIME...MOT...LOC 1847Z 258DEG 20KT 4041 7565 
$$

AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 1:37 AM EDT	Areal Flood Advisory	PHI	Cape May	4 hr
Jul 1, 2:25 AM EDT	Special Marine Warning	PHI		65 min
Jul 1, 11:55 AM EDT	Special Marine Warning	PHI		2 hr
Jul 1, 2:03 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex	27 min
Jul 1, 2:19 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	41 min
Jul 1, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	48 min
Jul 1, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	40 min
Jul 1, 3:33 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	57 min
Jul 1, 3:55 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	35 min
Jul 1, 4:09 PM EDT	Special Weather Statement	PHI	Monmouth	36 min
Jul 1, 4:36 PM EDT	Flash Flood Warning	PHI	Monmouth	4 hr
Jul 1, 4:36 PM EDT	Special Weather Statement	PHI	Morris	39 min
Jul 1, 4:50 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cumberland	3 hr
Jul 1, 4:58 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	47 min
Jul 1, 5:14 PM EDT	Flash Flood Warning	PHI	Cumberland	4 hr
Jul 1, 5:32 PM EDT	Special Weather Statement	PHI	Atlantic	43 min
Jul 1, 5:37 PM EDT	Small Craft Advisory	PHI		2 hr
Jul 1, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic	38 min
Jul 1, 6:14 PM EDT	Special Weather Statement	PHI	Atlantic	61 min
Jul 1, 6:20 PM EDT	Flash Flood Warning	PHI	Atlantic, Burlington, Cumberland, Ocean	4 hr
Jul 1, 6:34 PM EDT	Special Weather Statement	PHI	Monmouth	26 min
Jul 1, 6:37 PM EDT	Special Marine Warning	PHI		53 min
Jul 1, 6:50 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr
Jul 1, 7:18 PM EDT	Special Weather Statement	PHI	Warren	27 min
Jul 1, 2:24 PM EDT	Special Weather Statement	PHI	Lehigh, Northampton	66 min
Jul 1, 4:30 PM EDT	Severe Thunderstorm Warning	PHI	Chester	45 min
Jul 1, 4:25 PM EDT	Special Weather Statement	PHI	Cecil	50 min
Jul 1, 5:47 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Queen Anne's	43 min
Jul 1, 6:29 PM EDT	Flash Flood Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	4 hr
Jul 1, 6:35 PM EDT	Special Weather Statement	PHI	Queen Anne's	55 min
Jul 1, 7:40 PM EDT	Flash Flood Warning	PHI	Caroline, Talbot	4 hr
Jul 1, 5:05 PM EDT	Special Weather Statement	PHI	Sussex	25 min

Nearby

Special Weather Statements in Pennsylvania, 2016 Every special weather statement in 2016

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.