Alert archive / Pennsylvania / Mesoscale Discussions in 2014
Mesoscale Discussion 1243
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2014, 3:22 PM EDT for 4 states. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2014, 3:22 PM EDT (19:22 UTC)
- Expired
- Jul 1, 2014, 4:15 PM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 80 counties
Broome County, NY, Cayuga County, NY, Chemung County, NY, Chenango County, NY, Cortland County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Madison County, NY, Montgomery County, NY, Oneida County, NY, Onondaga County, NY, Oswego County, NY, Otsego County, NY, Schuyler County, NY, Seneca County, NY, St. Lawrence County, NY, Steuben County, NY, Tioga County, NY, Tompkins County, NY, Yates County, NY, Carroll County, OH, Columbiana County, OH, Harrison County, OH, Jefferson County, OH, Mahoning County, OH, Stark County, OH, Trumbull County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bedford County, PA, Blair County, PA, Bradford County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Crawford County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Forest County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lackawanna County, PA, Lawrence 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, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Susquehanna County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Wyoming County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV
The radar
The State College radar (KCCX), 111 km from the middle of the area, began a volume at 19:23 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.4 hours before the alert went out and 142 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
- 361 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 893 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 11:45 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Cayuga, Chemung, Cortland, Erie and 16 more | 90 min |
| Jul 1, 1:24 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Crawford, Defiance, Erie, Fulton and 15 more | 66 min |
| Jul 1, 1:44 AM EDT | Severe Thunderstorm Watch | SPC | Allen, Crawford, Defiance, Erie, Fulton, Hancock and 12 more | 4 hr |
| Jul 1, 2:56 AM EDT | Mesoscale Discussion | SPC | Adams, Auglaize, Brown, Butler, Champaign, Clark and 19 more | 64 min |
| Jul 1, 4:05 AM EDT | Mesoscale Discussion | SPC | Ashland, Champaign, Clark, Crawford, Delaware, Erie and 20 more | 55 min |
| Jul 1, 5:43 PM EDT | Mesoscale Discussion | SPC | Brown, Butler, Clermont, Hamilton, Warren | 92 min |
Nearby
Mesoscale Discussions in Pennsylvania, 2014Mesoscale Discussions in New York, 2014Mesoscale Discussions in Ohio, 2014Every mesoscale discussion in 2014
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.