Alert archive / Missouri / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 32

February 4, 200839 counties in Illinois; 5 counties in Indiana; 47 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Feb 4, 2008, 7:14 PM CST for 39 counties in Illinois; 5 counties in Indiana; 47 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 4, 2008, 7:14 PM CST (01:14 UTC)
Expired
Feb 5, 2008, 1:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 91 counties

Bond County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clinton County, IL, Coles County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Ford County, IL, Greene County, IL, Iroquois County, IL, Jersey County, IL, Kankakee County, IL, Livingston County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Saint Clair County, IL, Sangamon County, IL, Scott County, IL, Shelby County, IL, Tazewell County, IL, Vermilion County, IL, Benton County, IN, Jasper County, IN, Lake County, IN, Newton County, IN, Porter County, IN, Audrain County, MO, Barry County, MO, Barton County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lawrence County, MO, Lincoln County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Saint Charles County, MO, Saint Louis County, MO, St. Clair County, MO, Stone County, MO, Texas County, MO, Vernon County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO

The radar

The St Louis radar (KLSX), 62 km from the middle of the area, began a volume at 01:15 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Feb 4, 7:31 PM CSTSevere Thunderstorm WarningILXMcLean24 min
Feb 4, 8:08 PM CSTSevere Thunderstorm WarningLSXLincoln, Montgomery, Pike52 min
Feb 4, 8:27 PM CSTSevere Thunderstorm WarningSGFBenton, Hickory, St. Clair38 min
Feb 4, 8:45 PM CSTSevere Thunderstorm WarningLSXCalhoun, Greene, Pike45 min
Feb 4, 8:55 PM CSTSevere Thunderstorm WarningSGFBenton, Camden, Hickory28 min
Feb 4, 9:12 PM CSTSevere Thunderstorm WarningILXLogan, Macon, Sangamon33 min
Feb 4, 9:14 PM CSTSevere Thunderstorm WarningLSXLincoln31 min
Feb 4, 9:27 PM CSTSevere Thunderstorm WarningLSXLincoln, Montgomery, Warren48 min
Feb 4, 9:59 PM CSTSevere Thunderstorm WarningLSXCallaway, Osage26 min
Feb 4, 10:13 PM CSTSevere Thunderstorm WarningLSXGasconade, Lincoln, Montgomery, Warren47 min
Feb 4, 10:25 PM CSTFlash Flood WarningILXSangamon3 hr
Feb 4, 10:57 PM CSTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey48 min
Feb 4, 11:09 PM CSTSevere Thunderstorm WarningSGFGreene20 min
Feb 4, 11:37 PM CSTSevere Thunderstorm WarningLSXCalhoun, Jersey38 min
Feb 4, 11:51 PM CSTFlash Flood WarningLOTFord, Iroquois, Kankakee, Livingston18 hr
Feb 5, 12:14 AM CSTFlash Flood WarningSGFDallas, Polk3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.2 hours before the alert went out and 181 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 00:00Z on 2008-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 00:00Z on 2008-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 278 square meters per square second.1939587897117Sfc1 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
6 J/kg
Mixed-layer CIN
-157 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
278 m²/s²
0-3 km storm-relative helicity
363 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 4, 9:21 PM CSTMesoscale DiscussionSPCClay, Fulton, Greene, Randolph, Sharp84 min
Feb 5, 6:39 AM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clark, Cleburne and 32 more3 hr
Feb 5, 9:47 AM CSTMesoscale DiscussionSPCClay, Craighead, Crittenden, Cross, Greene, Jackson and 5 more88 min
Feb 5, 10:18 AM CSTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 7 more87 min
Feb 5, 11:16 AM CSTMesoscale DiscussionSPCArkansas, Ashley, Baxter, Bradley, Calhoun, Clark and 53 more89 min
Feb 5, 11:56 AM CSTTornado WatchSPCHoward, Little River, Miller, Sevier7 hr
Feb 5, 12:11 PM CSTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Crittenden, Cross, Desha and 7 more94 min
Feb 5, 12:39 PM CSTTornado WatchSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 14 more7 hr
Feb 5, 2:08 PM CSTTornado Watch PDSSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 33 more10 hr
Feb 5, 3:09 PM CSTTornado Watch PDSSPCClay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more9 hr
Feb 5, 3:17 PM CSTMesoscale DiscussionSPCBaxter, Boone, Carroll, Crawford, Franklin, Johnson and 9 more88 min
Feb 5, 3:36 PM CSTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Clark, Cleburne, Cleveland and 19 more84 min
Feb 5, 5:39 PM CSTMesoscale DiscussionSPCArkansas, Baxter, Bradley, Calhoun, Clark, Clay and 42 more96 min
Feb 4, 6:20 PM CSTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Clinton and 13 more85 min
Feb 4, 9:44 PM CSTMesoscale DiscussionSPCCalhoun, Champaign, Christian, DeWitt, Douglas, Ford and 13 more91 min
Feb 5, 6:45 AM CSTMesoscale DiscussionSPCMassac2 hr
Feb 5, 4:46 PM CSTMesoscale DiscussionSPCBond, Christian, Clark, Clay, Clinton, Coles and 17 more119 min
Feb 4, 7:18 PM CSTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Carroll, Cass and 23 more117 min
Feb 4, 7:27 PM CSTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Carroll, Cass and 23 more2 hr
Feb 4, 7:28 PM CSTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Carroll, Cass and 23 more2 hr
Feb 5, 7:07 AM CSTMesoscale DiscussionSPCAndrew, Buchanan, Caldwell, Clay, Clinton, Daviess and 6 more6 hr
Feb 5, 5:26 PM CSTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Caldwell, Clay, Clinton and 8 more5 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2008Severe Thunderstorm Watches in Illinois, 2008Severe Thunderstorm Watches in Indiana, 2008Every severe thunderstorm watch in 2008

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.