Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

March 28, 2021Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Mar 28, 2021, 5:13 PM EDT for Carbon County, Pennsylvania. It was in force for 32 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: Mar 28, 2021, 5:13 PM EDT (21:13 UTC)
Expired: Mar 28, 2021, 5:45 PM EDT
In force: 32 min
Issued by: NWS Philadelphia/Mount Holly

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 138 km from the middle of the area, began a volume at 21:12 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, 9.2 hours before the alert went out and 236 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 666 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 285 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

346 
WWUS81 KPHI 282113
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
513 PM EDT Sun Mar 28 2021

PAZ054-055-061-062-282145-
Lehigh-Monroe-Northampton-Carbon-
513 PM EDT Sun Mar 28 2021

...A LINE OF SHOWERS WITH GUSTY WINDS WILL AFFECT NORTH CENTRAL 
LEHIGH...CARBON... WESTERN MONROE AND WEST CENTRAL NORTHAMPTON 
COUNTIES...

At 510 PM EDT, radar indicated showers were located along a line
extending from West Hazleton to Coaldale. Movement was northeast at
65 mph.

Wind gusts up to 40 mph are possible with this line of showers.

Locations impacted include...
Lehighton, Northampton, Tobyhanna, Palmerton, Jim Thorpe, Slatington,
Nesquehoning, Weatherly, Walnutport, New Mahoning, Kunkletown, Neffs,
Pocono Pines, Gilbert, Pocono Raceway, Lake Harmony, Berlinsville,
Long Pond, Albrightsville and Emerald.

This includes the following highways...
 Northeast Extension between mile markers 64 and 97.
 Interstate 80 in Pennsylvania between mile markers 277 and 297.
 Interstate 380 in Pennsylvania between mile markers 2 and 13.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4071 7546 4067 7567 4081 7587 4091 7599
      4101 7573 4103 7574 4105 7577 4109 7577
      4113 7569 4112 7564 4123 7554 4124 7537
TIME...MOT...LOC 2110Z 247DEG 61KT 4098 7600 4074 7617 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 2:39 AM EDT	Gale Warning	PHI		35 hr
Mar 28, 6:21 PM EDT	Special Marine Warning	PHI		54 min
Mar 28, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren	47 min
Mar 28, 6:47 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Monmouth, Salem	43 min
Mar 28, 7:17 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Ocean, Somerset	60 min
Mar 28, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Monmouth, Ocean	70 min
Mar 28, 7:38 PM EDT	Special Marine Warning	PHI		111 min
Mar 28, 5:04 PM EDT	Special Weather Statement	PHI	Berks	41 min
Mar 28, 5:45 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	30 min
Mar 28, 6:02 PM EDT	Special Weather Statement	PHI	Chester	28 min
Mar 28, 6:12 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	48 min
Mar 28, 6:15 PM EDT	Special Weather Statement	PHI	Montgomery	30 min
Mar 28, 7:54 PM EDT	Special Weather Statement	PHI	Sussex	36 min

Nearby

Special Weather Statements in Pennsylvania, 2021 Every special weather statement in 2021

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.