Alert archive / Pennsylvania / Mesoscale Discussions in 2019
Mesoscale Discussion 931
The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2019, 5:53 PM EDT for Trumbull County, Ohio; 27 counties in Pennsylvania. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2019, 5:53 PM EDT (21:53 UTC)
- Expired
- Jun 1, 2019, 7:30 PM EDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 28 counties
Trumbull County, OH, Armstrong County, PA, Bradford County, PA, Butler County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Crawford County, PA, Elk County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Luzerne County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Montour County, PA, Northumberland County, PA, Potter County, PA, Snyder County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Wyoming County, PA
The radar
The State College radar (KCCX), 83 km from the middle of the area, began a volume at 21:57 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
Pittsburgh, PA (KAGC), launched 12:00Z, 9.9 hours before the alert went out and 163 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
- 1514 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 1, 11:49 AM EDT | Mesoscale Discussion | SPC | Fulton, Lucas, Williams | 116 min |
| Jun 1, 3:34 PM EDT | Mesoscale Discussion | SPC | Ashtabula, Cuyahoga, Erie, Lake, Lorain, Lucas and 3 more | 116 min |
| Jun 1, 4:02 PM EDT | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 18 more | 6 hr |
| Jun 1, 4:58 PM EDT | Mesoscale Discussion | SPC | Defiance, Fulton, Henry, Paulding, Williams | 2 hr |
| Jun 1, 5:37 PM EDT | Severe Thunderstorm Watch | SPC | Defiance, Fulton, Henry, Paulding, Putnam, Williams | 5 hr |
| Jun 1, 7:54 PM EDT | Mesoscale Discussion | SPC | Allen, Crawford, Defiance, Delaware, Fulton, Hancock and 12 more | 96 min |
| Jun 1, 2:28 PM EDT | Mesoscale Discussion | SPC | Crawford, Elk, Erie, Forest, McKean, Potter and 2 more | 2 hr |
Nearby
Mesoscale Discussions in Pennsylvania, 2019Mesoscale Discussions in Ohio, 2019Every mesoscale discussion in 2019
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.