Alert archive / Kansas / Severe Thunderstorm Watches in 2020

Severe Thunderstorm Watch 247

June 3, 202028 counties in Kansas; 9 counties in Missouri; 10 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jun 3, 2020, 9:38 PM CDT for 28 counties in Kansas; 9 counties in Missouri; 10 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 3, 2020, 9:38 PM CDT (02:38 UTC)
Expired
Jun 4, 2020, 4:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 47 counties

Anderson County, KS, Atchison County, KS, Brown County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Lyon County, KS, Marshall County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Ottawa County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Clay County, MO, Clinton County, MO, Holt County, MO, Jackson County, MO, Nodaway County, MO, Platte County, MO, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Seward County, NE

The radar

The Topeka radar (KTWX), 113 km from the middle of the area, began a volume at 02:41 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
5%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
60%
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

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

IssuedProductOfficeCountiesLasted
Jun 3, 9:55 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Lancaster, Saline, Seward50 min
Jun 3, 10:40 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Lancaster, Saline, Seward50 min
Jun 3, 10:41 PM CDTSevere Thunderstorm WarningTOPCloud, Republic64 min
Jun 3, 10:53 PM CDTSevere Thunderstorm WarningOAXCass, Lancaster, Otoe, Seward37 min
Jun 3, 11:03 PM CDTSevere Thunderstorm WarningTOPMarshall, Washington42 min
Jun 3, 11:11 PM CDTSevere Thunderstorm WarningOAXCass, Gage, Jefferson, Johnson, Lancaster, Nemaha and 2 more34 min
Jun 3, 11:18 PM CDTSevere Thunderstorm WarningOAXGage, Jefferson, Saline42 min
Jun 3, 11:28 PM CDTSevere Thunderstorm WarningTOPClay, Cloud, Marshall, Pottawatomie, Republic, Riley and 1 more47 min
Jun 3, 11:58 PM CDTSevere Thunderstorm WarningTOPClay, Geary, Marshall, Nemaha, Pottawatomie, Riley and 1 more62 min
Jun 4, 12:15 AM CDTSevere Thunderstorm WarningTOPDickinson, Ottawa45 min
Jun 4, 12:25 AM CDTSevere Thunderstorm WarningTOPBrown, Clay, Dickinson, Geary, Jackson, Marshall and 5 more65 min
Jun 4, 12:45 AM CDTSevere Thunderstorm WarningTOPDickinson45 min
Jun 4, 12:46 AM CDTSevere Thunderstorm WarningEAXAtchison, Doniphan44 min
Jun 4, 1:26 AM CDTSevere Thunderstorm WarningEAXDoniphan34 min
Jun 4, 1:41 AM CDTSevere Thunderstorm WarningEAXJohnson, Leavenworth, Wyandotte34 min
Jun 4, 1:41 AM CDTSevere Thunderstorm WarningTOPDouglas, Franklin, Lyon, Osage, Shawnee, Wabaunsee49 min
Jun 4, 1:43 AM CDTSevere Thunderstorm WarningEAXJohnson, Miami32 min
Jun 4, 1:52 AM CDTSevere Thunderstorm WarningEAXJohnson, Wyandotte38 min
Jun 4, 2:03 AM CDTFlash Flood WarningEAXCaldwell, Carroll, Clinton, Daviess, DeKalb, Livingston and 1 more3 hr
Jun 4, 2:20 AM CDTSevere Thunderstorm WarningTOPAnderson, Coffey, Douglas, Franklin, Lyon, Osage55 min
Jun 4, 2:21 AM CDTSevere Thunderstorm WarningEAXJohnson, Linn, Miami39 min
Jun 4, 2:26 AM CDTSevere Thunderstorm WarningEAXCaldwell, Carroll, Cass, Chariton, Henry, Jackson and 5 more49 min
Jun 4, 2:31 AM CDTTornado WarningEAXJackson14 min
Jun 4, 2:32 AM CDTSevere Thunderstorm WarningTOPLyon28 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

Topeka, KS (KTOP), launched 00:00Z, 2.6 hours before the alert went out and 106 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, Topeka, KS at 00:00Z on 2020-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2970 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, Topeka, KS at 00:00Z on 2020-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
2970 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1684 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.2
Supercell composite
4.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 8:54 PM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Jackson and 12 more2 hr
Jun 3, 10:44 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Clay, Cloud, Dickinson and 25 more2 hr
Jun 4, 12:54 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Butler and 32 more96 min
Jun 4, 2:07 AM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Cherokee, Crawford, Labette, Linn and 4 more5 hr
Jun 4, 3:32 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Cherokee, Crawford, Linn, Neosho and 2 more88 min
Jun 4, 5:23 PM CDTMesoscale DiscussionSPCDecatur, Rawlins, Sheridan, Thomas2 hr
Jun 4, 5:44 AM CDTMesoscale DiscussionSPCBarry, Christian, Stone, Taney61 min
Jun 4, 2:42 PM CDTMesoscale DiscussionSPCMississippi, Scott2 hr
Jun 4, 2:25 PM CDTMesoscale DiscussionSPCBoyd, Brown, Cherry, Keya Paha, Rock95 min
Jun 4, 6:55 PM CDTMesoscale DiscussionSPCKeya Paha95 min

Nearby

Severe Thunderstorm Watches in Kansas, 2020Severe Thunderstorm Watches in Nebraska, 2020Severe Thunderstorm Watches in Missouri, 2020Every severe thunderstorm watch in 2020

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.