Alert archive / Missouri / Mesoscale Discussions in 2007

Mesoscale Discussion 1048

June 7, 200715 counties in Illinois; 5 counties in Kansas; 33 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2007, 7:54 PM CDT for 15 counties in Illinois; 5 counties in Kansas; 33 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 7, 2007, 7:54 PM CDT (00:54 UTC)
Expired
Jun 7, 2007, 10:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 53 counties

Adams County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Fulton County, IL, Greene County, IL, Knox County, IL, Mason County, IL, McDonough County, IL, Menard County, IL, Morgan County, IL, Pike County, IL, Schuyler County, IL, Scott County, IL, Tazewell County, IL, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Neosho County, KS, Wilson County, KS, Audrain County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Gasconade County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Lincoln County, MO, Maries County, MO, Marion County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Pettis County, MO, Pike County, MO, Polk County, MO, Ralls County, MO, Randolph County, MO, St. Clair County, MO, Vernon County, MO, Warren County, MO

The radar

The Pleasant Hill radar (KEAX), 140 km from the middle of the area, began a volume at 00:57 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

Springfield, MO (KSGF), launched 00:00Z, 0.9 hours before the alert went out and 236 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, Springfield, MO at 00:00Z on 2007-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1639 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, Springfield, MO at 00:00Z on 2007-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
1639 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1110 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
222 m²/s²
Significant tornado parameter
0.6
Supercell composite
10.1

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 7, 8:31 PM CDTTornado WatchSPCAdams, Brown, Fulton, Knox, Peoria, Pike and 2 more7 hr
Jun 7, 9:23 PM CDTMesoscale DiscussionSPCBoone, Carroll, Jo Daviess, Lee, McHenry, Mercer and 5 more97 min
Jun 7, 9:48 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 13 more87 min
Jun 7, 10:14 PM CDTTornado WatchSPCBoone, Bureau, Carroll, Cass, Champaign, Christian and 50 more7 hr
Jun 7, 11:12 PM CDTMesoscale DiscussionSPCCalhoun, Greene, Jersey, Macoupin, Madison, Monroe and 3 more93 min
Jun 7, 11:26 PM CDTTornado WatchSPCBond, Calhoun, Clinton, Fayette, Greene, Jackson and 10 more8 hr
Jun 8, 6:23 AM CDTMesoscale DiscussionSPCAlexander, Johnson, Massac, Pope, Pulaski, Union and 1 more67 min
Jun 8, 8:45 AM CDTSevere Thunderstorm WatchSPCGallatin, Hardin, Massac, Pope6 hr
Jun 8, 2:27 AM CDTMesoscale DiscussionSPCMcDonald63 min

Nearby

Mesoscale Discussions in Missouri, 2007Mesoscale Discussions in Illinois, 2007Mesoscale Discussions in Kansas, 2007Every mesoscale discussion in 2007

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.