Alert archive / Kansas / Mesoscale Discussions in 2019

Mesoscale Discussion 376

April 17, 201924 counties in Kansas; Bates County, Missouri; 18 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2019, 7:49 PM CDT for 24 counties in Kansas; Bates County, Missouri; 18 counties in Oklahoma. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Apr 17, 2019, 7:49 PM CDT (00:49 UTC)
Expired
Apr 17, 2019, 9:15 PM CDT
In force
86 min
Issued by
the Storm Prediction Center
All 43 counties

Allen County, KS, Anderson County, KS, Barber County, KS, Bourbon County, KS, Butler County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Harper County, KS, Kingman County, KS, Labette County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Bates County, MO, Alfalfa County, OK, Blaine County, OK, Craig County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Logan County, OK, Major County, OK, Noble County, OK, Nowata County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Washington County, OK, Woods County, OK

The radar

The Wichita radar (KICT), 96 km from the middle of the area, began a volume at 00:52 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 (KFOE), launched 00:00Z, 0.8 hours before the alert went out and 211 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 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 880 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 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
880 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1606 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

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
Apr 17, 9:52 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 10 more83 min
Apr 17, 11:07 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford83 min
Apr 17, 11:23 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford3 hr
Apr 18, 1:15 AM CDTMesoscale DiscussionSPCBollinger, Butler, Carter, Dunklin, Howell, Iron and 11 more60 min
Apr 18, 2:16 AM CDTMesoscale DiscussionSPCCallaway, Cole, Crawford, Dent, Franklin, Gasconade and 17 more119 min
Apr 17, 9:20 PM CDTMesoscale DiscussionSPCLatimer, LeFlore, McCurtain, Pushmataha, Sequoyah85 min
Apr 17, 9:30 PM CDTMesoscale DiscussionSPCBryan, Choctaw, Marshall90 min
Apr 18, 12:54 AM CDTMesoscale DiscussionSPCMcCurtain66 min
Apr 18, 1:09 AM CDTSevere Thunderstorm WatchSPCMcCurtain7 hr

Nearby

Mesoscale Discussions in Kansas, 2019Mesoscale Discussions in Oklahoma, 2019Mesoscale Discussions in Missouri, 2019Every mesoscale discussion 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.