Alert archive / Illinois / Mesoscale Discussions in 2005

Mesoscale Discussion 1245

June 8, 200553 counties in Illinois; 7 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2005, 1:52 PM CDT for 53 counties in Illinois; 7 counties in Missouri. It was in force for 23 min.

The area

The outline as issued.

The facts

Issued
Jun 8, 2005, 1:52 PM CDT (18:52 UTC)
Expired
Jun 8, 2005, 2:15 PM CDT
In force
23 min
Issued by
the Storm Prediction Center
All 60 counties

Adams County, IL, Bond County, IL, Brown County, IL, Bureau County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clay County, IL, Clinton County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Fulton County, IL, Greene County, IL, Grundy County, IL, Henry County, IL, Jersey County, IL, Knox County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Marshall County, IL, Mason County, IL, McDonough County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Pike County, IL, Putnam County, IL, Saint Clair County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Warren County, IL, Washington County, IL, Woodford County, IL, City of Saint Louis, MO, Franklin County, MO, Lincoln County, MO, Pike County, MO, Saint Charles County, MO, Saint Louis County, MO, Warren County, MO

The radar

The Lincoln radar (KILX), 54 km from the middle of the area, began a volume at 18:55 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

Lincoln, IL (KILX), launched 12:00Z, 6.9 hours before the alert went out and 109 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, Lincoln, IL at 12:00Z on 2005-06-08Temperature 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, Lincoln, IL at 12:00Z on 2005-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 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
1707 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
25 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
Jun 8, 9:47 AM CDTMesoscale DiscussionSPCAdams, Hancock28 min
Jun 8, 11:46 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Fulton and 19 more29 min
Jun 8, 12:00 PM CDTSevere Thunderstorm WatchSPCAdams, Brown, Cass, Christian, Fulton, Greene and 18 more5 hr
Jun 8, 2:10 PM CDTSevere Thunderstorm WatchSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 48 more7 hr
Jun 8, 4:12 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clinton, Coles and 30 more2 hr
Jun 8, 6:22 PM CDTMesoscale DiscussionSPCBond, Calhoun, Champaign, Christian, Clark, Clay and 40 more83 min
Jun 8, 8:55 AM CDTMesoscale DiscussionSPCAdair, Barton, Bates, Benton, Boone, Buchanan and 48 more65 min
Jun 8, 9:55 AM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Boone, Callaway, Carroll, Chariton and 23 more7 hr
Jun 8, 1:03 PM CDTMesoscale DiscussionSPCAudrain, Barton, Bates, Benton, Boone, Buchanan and 38 more27 min
Jun 8, 1:30 PM CDTTornado WatchSPCAudrain, Bates, Benton, Boone, Callaway, Camden and 30 more8 hr
Jun 8, 4:00 PM CDTMesoscale DiscussionSPCAudrain, Bates, Benton, Boone, Callaway, Camden and 29 more60 min
Jun 8, 5:30 PM CDTTornado WatchSPCAndrew, Atchison, Buchanan, Clinton, DeKalb, Gentry and 3 more4 hr

Nearby

Mesoscale Discussions in Illinois, 2005Mesoscale Discussions in Missouri, 2005Every mesoscale discussion in 2005

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.