Alert archive / Pennsylvania / Mesoscale Discussions in 2020
Mesoscale Discussion 792
The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2020, 8:32 AM EDT for 44 counties in Pennsylvania. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- Jun 3, 2020, 8:32 AM EDT (12:32 UTC)
- Expired
- Jun 3, 2020, 10:30 AM EDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 44 counties
Adams County, PA, Armstrong County, PA, Berks County, PA, Blair County, PA, Bradford County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Carbon County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Forest County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lancaster County, PA, Lawrence County, PA, Lebanon County, PA, Luzerne County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Wyoming County, PA, York County, PA
The radar
The State College radar (KCCX), 20 km from the middle of the area, began a volume at 12:36 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 0.5 hours before the alert went out and 171 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 9:26 PM EDT | Mesoscale Discussion | SPC | McKean, Potter, Tioga, Warren | 3 hr |
| Jun 3, 5:12 AM EDT | Mesoscale Discussion | SPC | Crawford, Erie, Forest, McKean, Warren | 2 hr |
| Jun 3, 10:08 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Blair, Bucks, Cambria, Carbon and 29 more | 4 hr |
| Jun 3, 11:34 AM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Cumberland and 11 more | 86 min |
| Jun 3, 3:10 PM EDT | Mesoscale Discussion | SPC | Adams, Allegheny, Armstrong, Beaver, Bedford, Blair and 32 more | 2 hr |
| Jun 3, 3:52 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Cameron, Centre, Chester and 20 more | 6 hr |
| Jun 3, 6:58 PM EDT | Mesoscale Discussion | SPC | Lackawanna, Monroe, Northampton, Pike, Susquehanna, Wayne and 1 more | 92 min |
| Jun 3, 7:44 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Cumberland, Dauphin, Delaware and 6 more | 91 min |
Nearby
Mesoscale Discussions in Pennsylvania, 2020Every mesoscale discussion in 2020
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.