Alert archive / Ohio / Mesoscale Discussions in 2004
Mesoscale Discussion 2053
The Storm Prediction Center issued this mesoscale discussion at Aug 19, 2004, 7:26 PM EDT for 18 counties in Ohio; Allegheny County, Washington County, Westmoreland County, Pennsylvania; 4 counties in West Virginia. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2004, 7:26 PM EDT (23:26 UTC)
- Expired
- Aug 19, 2004, 8:30 PM EDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 25 counties
Belmont County, OH, Carroll County, OH, Clark County, OH, Coshocton County, OH, Fairfield County, OH, Franklin County, OH, Greene County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Licking County, OH, Madison County, OH, Montgomery County, OH, Muskingum County, OH, Perry County, OH, Pickaway County, OH, Preble County, OH, Tuscarawas County, OH, Allegheny County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marshall County, WV, Ohio County, WV
The radar
The Cleveland radar (KCLE), 154 km from the middle of the area, began a volume at 23:25 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 (KPIT), launched 12:00Z, 11.4 hours before the alert went out and 175 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
- 21 J/kg
- Mixed-layer CIN
- -234 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Aug 19, 1:41 PM EDT | Mesoscale Discussion | SPC | Belmont, Butler, Carroll, Champaign, Clark, Clinton and 28 more | 64 min |
| Aug 19, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 4 more | 6 hr |
| Aug 19, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | Butler, Champaign, Clark, Darke, Delaware, Fairfield and 15 more | 5 hr |
| Aug 19, 5:02 PM EDT | Mesoscale Discussion | SPC | Belmont, Butler, Carroll, Champaign, Clark, Columbiana and 32 more | 88 min |
| Aug 19, 6:10 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Chester, Delaware, Lancaster, York | 4 hr |
Nearby
Mesoscale Discussions in Ohio, 2004Mesoscale Discussions in West Virginia, 2004Mesoscale Discussions in Pennsylvania, 2004Every mesoscale discussion in 2004
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.