Alert archive / Ohio / Mesoscale Discussions in 2003

Mesoscale Discussion 2270

August 26, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2003, 2:46 PM EST for 4 states. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Aug 26, 2003, 2:46 PM EST (19:46 UTC)
Expired
Aug 26, 2003, 4:45 PM EST
In force
119 min
Issued by
the Storm Prediction Center
All 65 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Jay County, IN, Wells County, IN, Allen County, OH, Ashland County, OH, Auglaize County, OH, Belmont County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Coshocton County, OH, Crawford County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Franklin County, OH, Guernsey County, OH, Hancock County, OH, Hardin County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Monroe County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Paulding County, OH, Perry County, OH, Putnam County, OH, Richland County, OH, Seneca County, OH, Shelby County, OH, Tuscarawas County, OH, Union County, OH, Van Wert County, OH, Washington County, OH, Wayne County, OH, Wyandot County, OH, Fayette County, PA, Greene County, PA, Washington County, PA, Brooke County, WV, Doddridge County, WV, Hancock County, WV, Harrison County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Ritchie County, WV, Taylor County, WV, Tyler County, WV, Wetzel County, WV

The radar

The Cleveland radar (KCLE), 128 km from the middle of the area, began a volume at 19:50 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.8 hours before the alert went out and 148 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, Cncnati-Daytn, OH at 12:00Z on 2003-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2003-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.193958Sfc1 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
15 J/kg
Mixed-layer CIN
-573 J/kg
Mixed-layer LCL
2438 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 11:15 AM ESTMesoscale DiscussionSPCBenton, Blackford, Boone, Carroll, Cass, Clinton and 19 more3 hr
Aug 26, 1:15 PM ESTSevere Thunderstorm WatchSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 19 more4 hr
Aug 25, 11:27 PM ESTMesoscale DiscussionSPCAshtabula, Carroll, Columbiana, Cuyahoga, Erie, Geauga and 14 more63 min
Aug 26, 7:30 AM ESTMesoscale DiscussionSPCAshland, Ashtabula, Cuyahoga, Erie, Geauga, Hancock and 12 more2 hr
Aug 26, 8:10 AM ESTSevere Thunderstorm WatchSPCAllen, Ashland, Ashtabula, Auglaize, Columbiana, Crawford and 35 more5 hr
Aug 26, 10:08 AM ESTMesoscale DiscussionSPCAshland, Athens, Auglaize, Belmont, Carroll, Champaign and 32 more2 hr
Aug 26, 12:05 PM ESTSevere Thunderstorm WatchSPCAthens, Auglaize, Belmont, Butler, Carroll, Champaign and 39 more5 hr
Aug 26, 1:19 PM ESTMesoscale DiscussionSPCMonroe, Noble116 min
Aug 26, 3:25 PM ESTSevere Thunderstorm WatchSPCAllen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 39 more6 hr
Aug 26, 5:18 PM ESTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 35 more57 min
Aug 26, 6:55 PM ESTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Coshocton, Delaware and 21 more65 min
Aug 26, 1:55 PM ESTSevere Thunderstorm WatchSPCBerkeley, Grant, Hampshire, Hardy, Jefferson, Pendleton5 hr

Nearby

Mesoscale Discussions in Ohio, 2003Mesoscale Discussions in West Virginia, 2003Mesoscale Discussions in Indiana, 2003Every mesoscale discussion in 2003

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.