Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

April 28, 2021Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Apr 28, 2021, 7:42 PM EDT for Monroe County, Pennsylvania. It was in force for 48 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
Apr 28, 2021, 7:42 PM EDT (23:42 UTC)
Expired
Apr 28, 2021, 8:30 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly

County Monroe County, PA

The radar

The Binghamton radar (KBGM), 126 km from the middle of the area, began a volume at 23:42 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

Albany, NY (KALY), launched 12:00Z, 11.7 hours before the alert went out and 208 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2021-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2021-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1596 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

585 
WWUS81 KPHI 282342
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
742 PM EDT Wed Apr 28 2021

PAZ055-290030-
Monroe-
742 PM EDT Wed Apr 28 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN MONROE COUNTY...

At 740 PM EDT, a strong thunderstorm was located near Sterling, or 13
miles east of Scranton, moving east at 40 mph.

Wind gusts up to 40 mph are possible with and ahead of this storm. 
While the worst of the storm will remain north of Monroe County, 
winds gusts of 40 mph are possible in association with its outflow.

Locations impacted include...
Mount Pocono, Tobyhanna, Paradise Valley, Gouldsboro State Park,
Skytop, Mountainhome, Canadensis, Alpine Mountain and Cresco.

This includes Interstate 380 in Pennsylvania between mile markers 5
and 12.
 
If outdoors, consider seeking shelter inside a building.

LAT...LON 4115 7515 4114 7509 4109 7504 4115 7557
      4120 7557 4123 7554 4122 7551 4123 7551
      4125 7513
TIME...MOT...LOC 2340Z 289DEG 33KT 4138 7541 

$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:34 PM EDTGale WatchPHI12 hr

Nearby

Special Weather Statements in Pennsylvania, 2021Every 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.