Alert archive / Pennsylvania / Special Weather Statements in 2022

Special Weather Statement, NWS Philadelphia/Mount Holly

July 28, 2022Warren County, New Jersey; Berks County, Lehigh County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 28, 2022, 4:01 PM EDT for Warren County, New Jersey; Berks County, Lehigh County, Northampton County, Pennsylvania. It was in force for 29 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 28, 2022, 4:01 PM EDT (20:01 UTC)
Expired: Jul 28, 2022, 4:30 PM EDT
In force: 29 min
Issued by: NWS Philadelphia/Mount Holly
Hail: 0.25 in
Wind: 40

Counties Warren County, NJ, Berks County, PA, Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 124 km from the middle of the area, began a volume at 20:02 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.0 hours before the alert went out and 248 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: 135 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 1125 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

844 
WWUS81 KPHI 282001
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
401 PM EDT Thu Jul 28 2022
 
NJZ007-PAZ060>062-282030-
Warren NJ-Lehigh PA-Northampton PA-Berks PA-
401 PM EDT Thu Jul 28 2022

...Strong thunderstorms will impact portions of central Warren,
northeastern Berks, central Lehigh and central Northampton Counties
through 430 PM EDT...

At 401 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Beersville to near Fairview Hgts. Movement was
east at 30 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Allentown, Easton, Bethlehem, Forks, Emmaus, Northampton, Wilson,
Nazareth, Kutztown, Fleetwood, Bath, Belvidere, Harmony, Oxford,
Topton, Leesport, Belfast, Shoemakersville, West Easton and Tatamy.

This includes the following highways...
 Northeast Extension between mile markers 52 and 66.
 Interstate 78 in Pennsylvania between mile markers 38 and 60.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4080 7546 4089 7485 4041 7573 4041 7619
TIME...MOT...LOC 2001Z 263DEG 25KT 4077 7547 4047 7604 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

$$

RCM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 4:03 PM EDT	Special Weather Statement	PHI	Sussex	27 min
Jul 28, 5:00 PM EDT	Special Weather Statement	PHI	Hunterdon	30 min
Jul 28, 3:31 PM EDT	Special Weather Statement	PHI	Berks, Lehigh, Northampton	29 min
Jul 28, 3:32 PM EDT	Special Weather Statement	PHI	Chester, Montgomery	28 min
Jul 28, 4:02 PM EDT	Special Weather Statement	PHI	Chester, Delaware	28 min
Jul 28, 4:32 PM EDT	Special Weather Statement	PHI	Northampton	28 min
Jul 28, 4:32 PM EDT	Special Weather Statement	PHI	Berks	28 min
Jul 28, 4:34 PM EDT	Special Weather Statement	PHI	Lehigh	26 min
Jul 28, 5:01 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	29 min
Jul 28, 5:30 PM EDT	Special Weather Statement	PHI	Lehigh	30 min
Jul 28, 5:38 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Montgomery	52 min
Jul 28, 6:27 PM EDT	Special Weather Statement	PHI	Montgomery, Philadelphia	33 min
Jul 28, 6:29 PM EDT	Special Weather Statement	PHI	Chester	31 min
Jul 28, 7:07 PM EDT	Special Weather Statement	PHI	Philadelphia	23 min
Jul 28, 7:15 PM EDT	Special Weather Statement	PHI	Chester	30 min
Jul 28, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	46 min
Jul 28, 4:33 PM EDT	Special Weather Statement	PHI	Talbot	27 min

Nearby

Special Weather Statements in Pennsylvania, 2022 Special Weather Statements in New Jersey, 2022 Every special weather statement in 2022

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.