Alert archive / Illinois / Mesoscale Discussions in 2005

Mesoscale Discussion 1152

June 4, 200535 counties in Illinois; Clinton County, Iowa

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2005, 10:37 AM CDT for 35 counties in Illinois; Clinton County, Iowa. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Jun 4, 2005, 10:37 AM CDT (15:37 UTC)
Expired
Jun 4, 2005, 12:30 PM CDT
In force
113 min
Issued by
the Storm Prediction Center
All 36 counties

Clinton County, IA, Bureau County, IL, Carroll County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, DeKalb County, IL, DeWitt County, IL, Douglas County, IL, Ford County, IL, Fulton County, IL, Grundy County, IL, Henry County, IL, Kendall County, IL, Knox County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Moultrie County, IL, Ogle County, IL, Peoria County, IL, Piatt County, IL, Putnam County, IL, Sangamon County, IL, Scott County, IL, Stark County, IL, Tazewell County, IL, Whiteside County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 60 km from the middle of the area, began a volume at 15:39 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, 3.6 hours before the alert went out and 96 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 2005-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 125 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, Lincoln, IL at 12:00Z on 2005-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 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
125 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1014 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
139 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 4, 11:40 AM CDTSevere Thunderstorm WatchSPCBoone, Bureau, Cook, DeKalb, DuPage, Ford and 20 more6 hr
Jun 4, 2:48 PM CDTMesoscale DiscussionSPCBoone, Cook, DuPage, Iroquois, Kankakee, Lake and 2 more57 min
Jun 4, 4:03 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Cook, DuPage, Fulton and 20 more87 min
Jun 4, 2:05 PM CDTTornado WatchSPCAdams, Appanoose, Clarke, Decatur, Fremont, Lucas and 6 more9 hr
Jun 4, 2:23 PM CDTMesoscale DiscussionSPCAllamakee2 hr
Jun 4, 5:29 PM CDTMesoscale DiscussionSPCAppanoose, Clarke, Decatur, Fremont, Lucas, Monroe and 5 more91 min
Jun 4, 5:45 PM CDTMesoscale DiscussionSPCAdair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 41 more2 hr

Nearby

Mesoscale Discussions in Illinois, 2005Mesoscale Discussions in Iowa, 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.