Alert archive / Pennsylvania / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

August 6, 2016Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 6, 2016, 4:26 PM EDT for Lehigh County, Pennsylvania. It was in force for 34 min. 1 report 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 6, 2016, 4:26 PM EDT (20:26 UTC)
Expired: Aug 6, 2016, 5:00 PM EDT
In force: 34 min
Issued by: NWS Philadelphia/Mount Holly

County Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 139 km from the middle of the area, began a volume at 20:26 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 6, 5:06 PM EDT	HAIL 0.25	Salisbury Twp, PA

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, 8.4 hours before the alert went out and 241 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: 252 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 685 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

765 
WWUS81 KPHI 062026
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
426 PM EDT SAT AUG 6 2016
 
PAZ054-060>062-105-062100-
CARBON-BERKS-NORTHAMPTON-LEHIGH-UPPER BUCKS-
426 PM EDT SAT AUG 6 2016

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN NORTHAMPTON...
LEHIGH...NORTHERN BERKS...NORTHWESTERN BUCKS AND SOUTHEASTERN CARBON
COUNTIES...

AT 426 PM EDT...A STRONG THUNDERSTORM WAS OVER NEFFS...OR 9 MILES
SOUTHEAST OF LEHIGHTON...MOVING SOUTHEAST AT 25 MPH.

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

LOCATIONS IMPACTED INCLUDE...
ALLENTOWN...EASTON...LEHIGHTON...BETHLEHEM...EMMAUS...NORTHAMPTON...
WILSON...HELLERTOWN...PALMERTON...SLATINGTON...BATH...WALNUTPORT...
STEUBEN...NEW TRIPOLI...BEERSVILLE...CLAUSSVILLE...BERLINSVILLE...
SCHNECKSVILLE...LEHIGH UNIVERSITY AND JORDAN VALLEY.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4069 7587 4070 7583 4074 7576 4077 7581
      4078 7581 4086 7573 4070 7524 4045 7540
      4067 7589
TIME...MOT...LOC 2026Z 296DEG 21KT 4070 7564 
$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 2:24 PM EDT	Special Weather Statement	PHI	Sussex	36 min
Aug 6, 2:50 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	40 min
Aug 6, 3:21 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	39 min
Aug 6, 3:55 PM EDT	Special Weather Statement	PHI	Hunterdon, Middlesex, Morris, Somerset	50 min
Aug 6, 4:40 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth	50 min
Aug 6, 5:40 PM EDT	Special Weather Statement	PHI	Mercer	50 min
Aug 6, 5:41 PM EDT	Special Weather Statement	PHI	Monmouth	49 min
Aug 6, 6:32 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	4 hr
Aug 6, 6:52 PM EDT	Special Weather Statement	PHI	Mercer	23 min
Aug 6, 7:10 PM EDT	Special Weather Statement	PHI	Ocean	50 min
Aug 6, 7:33 PM EDT	Special Marine Warning	PHI		57 min
Aug 6, 7:40 PM EDT	Special Weather Statement	PHI	Ocean	35 min
Aug 6, 4:30 PM EDT	Special Weather Statement	PHI	Berks	30 min
Aug 6, 4:51 PM EDT	Special Weather Statement	PHI	Montgomery	24 min
Aug 6, 4:55 PM EDT	Special Weather Statement	PHI	Lehigh	35 min
Aug 6, 4:59 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	46 min
Aug 6, 5:26 PM EDT	Special Weather Statement	PHI	Berks	34 min
Aug 6, 5:56 PM EDT	Special Weather Statement	PHI	Montgomery	34 min
Aug 6, 6:25 PM EDT	Special Weather Statement	PHI	Delaware, Montgomery, Philadelphia	35 min
Aug 6, 6:49 PM EDT	Special Weather Statement	PHI	Kent	26 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.