Alert archive / Illinois / Severe Thunderstorm Watches in 2019

Severe Thunderstorm Watch 331

June 5, 201944 counties in Illinois; 38 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jun 5, 2019, 2:21 PM CDT for 44 counties in Illinois; 38 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 5, 2019, 2:21 PM CDT (19:21 UTC)
Expired
Jun 5, 2019, 8:52 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 82 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Clinton County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fayette County, IL, Greene County, IL, Jasper County, IL, Jersey County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Mason County, IL, Menard County, IL, Monroe County, IL, Montgomery County, IL, Morgan County, IL, Moultrie County, IL, Piatt County, IL, Pike County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Vermilion County, IL, Washington County, IL, Adair County, MO, Audrain County, MO, Boone County, MO, Callaway County, MO, Chariton County, MO, City of Saint Louis, MO, Cole County, MO, Daviess County, MO, Franklin County, MO, Gasconade County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Howard County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Saint Charles County, MO, Saint Louis County, MO, Schuyler County, MO, Shelby County, MO, Sullivan County, MO, Warren County, MO, Worth County, MO

The radar

The St Louis radar (KLSX), 88 km from the middle of the area, began a volume at 19:23 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
20%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
80%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 5, 2:30 PM CDTSevere Thunderstorm WarningEAXAdair, Schuyler45 min
Jun 5, 2:38 PM CDTSevere Thunderstorm WarningEAXPutnam, Sullivan37 min
Jun 5, 2:52 PM CDTSevere Thunderstorm WarningLSXMarion53 min
Jun 5, 3:00 PM CDTSevere Thunderstorm WarningILXCass, Mason26 min
Jun 5, 3:02 PM CDTSevere Thunderstorm WarningLSXBrown43 min
Jun 5, 3:08 PM CDTSevere Thunderstorm WarningEAXSullivan37 min
Jun 5, 3:12 PM CDTSevere Thunderstorm WarningILXCass, Morgan, Scott48 min
Jun 5, 3:12 PM CDTSevere Thunderstorm WarningEAXAdair, Schuyler33 min
Jun 5, 3:41 PM CDTSevere Thunderstorm WarningEAXAdair34 min
Jun 5, 3:44 PM CDTSevere Thunderstorm WarningEAXAdair, Linn, Macon, Sullivan46 min
Jun 5, 3:54 PM CDTSevere Thunderstorm WarningILXChristian, Sangamon51 min
Jun 5, 4:11 PM CDTSevere Thunderstorm WarningLSXKnox, Lewis, Marion, Shelby49 min
Jun 5, 4:14 PM CDTSevere Thunderstorm WarningEAXAdair, Macon31 min
Jun 5, 4:27 PM CDTSevere Thunderstorm WarningILXChristian, Shelby48 min
Jun 5, 4:28 PM CDTSevere Thunderstorm WarningEAXAdair, Linn, Macon, Sullivan15 min
Jun 5, 4:36 PM CDTSevere Thunderstorm WarningILXClark, Edgar39 min
Jun 5, 4:44 PM CDTFlash Flood WarningLSXAdams6 hr
Jun 5, 4:56 PM CDTSevere Thunderstorm WarningLSXBond, Fayette, Montgomery49 min
Jun 5, 5:03 PM CDTSevere Thunderstorm WarningILXEffingham, Shelby42 min
Jun 5, 5:09 PM CDTSevere Thunderstorm WarningEAXGrundy, Linn, Sullivan36 min
Jun 5, 5:15 PM CDTSevere Thunderstorm WarningILXClark32 min
Jun 5, 5:22 PM CDTFlash Flood WarningLSXMarion6 hr
Jun 5, 5:24 PM CDTSevere Thunderstorm WarningEAXGrundy, Livingston19 min
Jun 5, 5:31 PM CDTSevere Thunderstorm WarningEAXAndrew, Gentry, Nodaway33 min
Jun 5, 5:33 PM CDTSevere Thunderstorm WarningLSXAudrain, Monroe, Pike, Ralls42 min
Jun 5, 5:47 PM CDTFlash Flood WarningEAXGrundy, Linn, Macon, Sullivan3 hr
Jun 5, 5:57 PM CDTFlash Flood WarningILXClay6 hr
Jun 5, 6:24 PM CDTSevere Thunderstorm WarningEAXChariton, Linn10 min
Jun 5, 6:45 PM CDTSevere Thunderstorm WarningLSXCalhoun, Jersey, Madison45 min
Jun 5, 6:50 PM CDTSevere Thunderstorm WarningLSXCalhoun40 min
Jun 5, 7:03 PM CDTSevere Thunderstorm WarningLSXMonroe, Saint Clair42 min
Jun 5, 7:06 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade, Montgomery, Warren39 min
Jun 5, 7:18 PM CDTSevere Thunderstorm WarningLSXMadison21 min

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 12:00Z, 7.4 hours before the alert went out and 154 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 2019-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 941 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 2019-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 144 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
941 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
144 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.8

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 5, 10:03 AM CDTMesoscale DiscussionSPCFulton, Hancock, Henderson, Knox, McDonough, Mercer and 3 more117 min
Jun 5, 12:44 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 34 more2 hr
Jun 5, 2:44 PM CDTMesoscale DiscussionSPCFranklin, Gallatin, Hamilton, Hardin, Jackson, Jefferson and 10 more2 hr
Jun 5, 3:05 PM CDTSevere Thunderstorm WatchSPCEdwards, Franklin, Gallatin, Hamilton, Jackson, Jefferson and 6 more7 hr
Jun 5, 6:01 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Jersey, Madison, Monroe and 2 more89 min
Jun 5, 5:21 PM CDTMesoscale DiscussionSPCBuchanan, Caldwell, Carroll, Cass, Clay, Clinton and 8 more54 min

Nearby

Severe Thunderstorm Watches in Illinois, 2019Severe Thunderstorm Watches in Missouri, 2019Every severe thunderstorm watch in 2019

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.