Alert archive / Missouri / Mesoscale Discussions in 2020

Mesoscale Discussion 835

June 5, 20204 states

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2020, 1:59 AM CDT for 4 states. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Jun 5, 2020, 1:59 AM CDT (06:59 UTC)
Expired
Jun 5, 2020, 3:30 AM CDT
In force
91 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 255
All 55 counties

Adams County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Atchison County, KS, Brown 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, Marshall County, KS, Miami County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO, Saline County, MO, Worth County, MO, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE

The radar

The Topeka radar (KTWX), 118 km from the middle of the area, began a volume at 07:00 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

Topeka, KS (KTOP), launched 00:00Z, 7.0 hours before the alert went out and 87 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 2020-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3168 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 2020-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939Sfc1 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
3168 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1308 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 4, 10:50 PM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more115 min
Jun 4, 11:32 PM CDTSevere Thunderstorm WatchSPCFremont, Mills, Montgomery, Page7 hr
Jun 5, 1:02 AM CDTSevere Thunderstorm WatchSPCAdair, Allamakee, Appanoose, Audubon, Benton, Black Hawk and 54 more6 hr
Jun 5, 4:17 AM CDTMesoscale DiscussionSPCAppanoose, Benton, Black Hawk, Boone, Bremer, Buchanan and 34 more88 min
Jun 5, 7:59 AM CDTMesoscale DiscussionSPCDes Moines, Henry, Lee91 min
Jun 5, 12:26 PM CDTMesoscale DiscussionSPCClinton, Jackson94 min
Jun 4, 7:42 PM CDTSevere Thunderstorm WatchSPCJewell, Mitchell, Osborne, Phillips, Rooks, Smith6 hr
Jun 4, 8:50 PM CDTMesoscale DiscussionSPCGrant, Gray, Haskell, Meade, Seward, Stevens85 min
Jun 5, 3:31 AM CDTMesoscale DiscussionSPCBourbon89 min
Jun 5, 3:41 AM CDTSevere Thunderstorm WatchSPCAdair, Audrain, Barton, Benton, Boone, Callaway and 42 more4 hr
Jun 5, 10:38 AM CDTMesoscale DiscussionSPCDunklin, Pemiscot2 hr
Jun 5, 11:03 AM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot6 hr
Jun 4, 9:36 PM CDTMesoscale DiscussionSPCAdams, Antelope, Boone, Boyd, Buffalo, Butler and 32 more84 min
Jun 4, 10:24 PM CDTMesoscale DiscussionSPCBlaine, Brown, Cherry66 min

Nearby

Mesoscale Discussions in Missouri, 2020Mesoscale Discussions in Kansas, 2020Mesoscale Discussions in Iowa, 2020Every mesoscale discussion 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.