Alert archive / Ohio / Mesoscale Discussions in 2004

Mesoscale Discussion 827

May 22, 2004Jay County, Randolph County, Indiana; Monroe County, Michigan; 41 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at May 22, 2004, 5:29 PM EST for Jay County, Randolph County, Indiana; Monroe County, Michigan; 41 counties in Ohio. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
May 22, 2004, 5:29 PM EST (22:29 UTC)
Expired
May 22, 2004, 7:00 PM EST
In force
91 min
Issued by
the Storm Prediction Center
All 44 counties

Jay County, IN, Randolph County, IN, Monroe County, MI, Allen County, OH, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Champaign County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Delaware County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Union County, OH, Van Wert County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 105 km from the middle of the area, began a volume at 22:29 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

Detroit, MI (KDTX), launched 12:00Z, 10.5 hours before the alert went out and 173 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, Detroit, MI at 12:00Z on 2004-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Detroit, MI at 12:00Z on 2004-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
162 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
May 22, 1:48 AM ESTMesoscale DiscussionSPCAllen, DeKalb, Elkhart, Kosciusko, LaGrange, LaPorte and 4 more57 min
May 22, 11:03 AM ESTMesoscale DiscussionSPCBenton, Cass, Fulton, Jasper, Lake, LaPorte and 7 more57 min
May 22, 11:35 AM ESTSevere Thunderstorm WatchSPCAllen, Benton, Blackford, Boone, Carroll, Cass and 36 more6 hr
May 22, 2:36 PM ESTMesoscale DiscussionSPCAdams, Allen, Blackford, Carroll, Cass, Clinton and 17 more54 min
May 22, 3:20 PM ESTSevere Thunderstorm WatchSPCJay, Randolph8 hr
May 22, 1:09 PM ESTMesoscale DiscussionSPCBarry, Bay, Calhoun, Clinton, Eaton, Genesee and 18 more66 min
May 22, 1:30 PM ESTTornado WatchSPCBarry, Calhoun, Clinton, Eaton, Genesee, Gratiot and 18 more6 hr
May 22, 1:25 AM ESTMesoscale DiscussionSPCAshland, Ashtabula, Belmont, Carroll, Columbiana, Coshocton and 33 more2 hr
May 22, 12:26 PM ESTMesoscale DiscussionSPCTrumbull94 min

Nearby

Mesoscale Discussions in Ohio, 2004Mesoscale Discussions in Indiana, 2004Mesoscale Discussions in Michigan, 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.