Alert archive / Ohio / Mesoscale Discussions in 2003

Mesoscale Discussion 1256

June 8, 20034 states

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2003, 10:53 AM EDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2003, 10:53 AM EDT (14:53 UTC)
Expired
Jun 8, 2003, 1:00 PM EDT
In force
2 hr
Issued by
the Storm Prediction Center
All 59 counties

Dearborn County, IN, Franklin County, IN, Jefferson County, IN, Ohio County, IN, Ripley County, IN, Switzerland County, IN, Union County, IN, Boone County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Lenawee County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Crawford County, OH, Darke County, OH, Fulton County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Logan County, OH, Lucas County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Ottawa County, OH, Preble County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Warren County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 150 km from the middle of the area, began a volume at 14:53 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, 2.9 hours before the alert went out and 149 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 2003-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 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 2003-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
112 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
825 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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
Jun 8, 11:40 AM EDTSevere Thunderstorm WatchSPCDearborn, Fayette, Franklin, Jefferson, Ohio, Randolph and 4 more5 hr
Jun 8, 1:08 PM EDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bell and 52 more2 hr
Jun 8, 2:09 PM EDTMesoscale DiscussionSPCAnderson, Boone, Bracken, Campbell, Franklin, Gallatin and 8 more2 hr
Jun 8, 12:47 PM EDTMesoscale DiscussionSPCAntrim, Barry, Bay, Branch, Calhoun, Cheboygan and 29 more118 min
Jun 8, 1:20 PM EDTSevere Thunderstorm WatchSPCAlcona, Arenac, Barry, Bay, Benzie, Branch and 44 more6 hr
Jun 8, 3:43 PM EDTMesoscale DiscussionSPCAlpena, Arenac, Bay, Clinton, Crawford, Genesee and 17 more107 min
Jun 8, 6:04 PM EDTMesoscale DiscussionSPCAlcona, Alpena, Arenac, Bay, Calhoun, Clare and 32 more56 min
Jun 8, 4:15 PM EDTSevere Thunderstorm WatchSPCAdams, Ashland, Ashtabula, Athens, Belmont, Carroll and 35 more5 hr
Jun 8, 6:29 PM EDTMesoscale DiscussionSPCBelmont, Columbiana, Harrison, Jefferson, Mahoning, Monroe and 1 more91 min

Nearby

Mesoscale Discussions in Ohio, 2003Mesoscale Discussions in Kentucky, 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.