Alert archive / Missouri / Mesoscale Discussions in 2017

Mesoscale Discussion 862

May 27, 201726 counties in Kansas; 53 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at May 27, 2017, 9:59 AM CDT for 26 counties in Kansas; 53 counties in Missouri. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2017, 9:59 AM CDT (14:59 UTC)
Expired
May 27, 2017, 12:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 79 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Cherokee County, KS, Coffey County, KS, Cowley County, KS, Crawford County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Johnson County, KS, Labette County, KS, Linn County, KS, Lyon County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Osage County, KS, Sedgwick County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Carroll County, MO, Cass County, MO, Cedar County, MO, Chariton County, MO, Christian County, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Gasconade County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howard County, MO, Howell County, MO, Iron County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Livingston County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Osage County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Ray County, MO, Reynolds County, MO, Saline County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Texas County, MO, Vernon County, MO, Washington County, MO, Webster County, MO, Wright County, MO

The radar

The Pleasant Hill radar (KEAX), 93 km from the middle of the area, began a volume at 15:01 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

Springfield, MO (KSGF), launched 12:00Z, 3.0 hours before the alert went out and 161 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, Springfield, MO at 12:00Z on 2017-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3187 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, Springfield, MO at 12:00Z on 2017-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.1939587897Sfc1 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
3187 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
766 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
1.8
Supercell composite
9.6

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
May 26, 7:38 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Finney, Gove, Graham, Greeley and 12 more7 hr
May 26, 10:03 PM CDTMesoscale DiscussionSPCCheyenne, Gove, Lane, Logan, Rawlins, Scott and 5 more117 min
May 26, 11:45 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Gove, Graham, Logan and 12 more2 hr
May 27, 12:52 AM CDTSevere Thunderstorm WatchSPCBarton, Ellis, Ellsworth, Jewell, Lincoln, Mitchell and 8 more5 hr
May 27, 1:47 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Lane and 10 more88 min
May 27, 3:35 AM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Dickinson, Ellis, Ellsworth and 21 more115 min
May 27, 12:13 PM CDTTornado WatchSPCBourbon, Cherokee, Crawford, Johnson, Linn, Miami7 hr
May 27, 1:12 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Linn, Miami, Neosho93 min
May 27, 2:45 PM CDTMesoscale DiscussionSPCGrant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more2 hr
May 27, 2:46 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Coffey, Greenwood, Neosho and 1 more59 min
May 27, 5:27 PM CDTSevere Thunderstorm WatchSPCGrant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more6 hr
May 27, 12:06 AM CDTSevere Thunderstorm WatchSPCBarry, Christian, Douglas, Howell, McDonald, Oregon and 4 more5 hr
May 27, 2:04 AM CDTMesoscale DiscussionSPCBarry, Christian, Douglas, Howell, McDonald, Oregon and 4 more116 min
May 27, 3:54 AM CDTMesoscale DiscussionSPCBollinger, Butler, Carter, Dunklin, Howell, Mississippi and 9 more2 hr
May 27, 4:19 AM CDTSevere Thunderstorm WatchSPCButler, Dunklin, New Madrid, Pemiscot, Ripley, Stoddard6 hr
May 27, 6:12 AM CDTMesoscale DiscussionSPCDunklin, New Madrid, Pemiscot2 hr
May 27, 1:16 PM CDTMesoscale DiscussionSPCCape Girardeau, Mississippi, New Madrid, Pemiscot, Perry, Scott and 1 more59 min
May 27, 1:36 PM CDTSevere Thunderstorm WatchSPCCape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot, Saint Charles and 4 more7 hr
May 27, 3:29 PM CDTMesoscale DiscussionSPCBollinger, Butler, Carter, Crawford, Dent, Howell and 14 more91 min
May 27, 3:50 PM CDTMesoscale DiscussionSPCMississippi, New Madrid, Pemiscot, Scott85 min
May 27, 4:24 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dent, Iron and 8 more66 min
May 27, 5:13 PM CDTSevere Thunderstorm Watch PDSSPCCape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot, Scott and 1 more7 hr
May 27, 5:56 PM CDTMesoscale DiscussionSPCBenton, Boone, Callaway, Camden, Cole, Cooper and 18 more64 min
May 27, 6:17 PM CDTMesoscale DiscussionSPCHowell, Oregon, Ozark, Ripley, Taney58 min
May 27, 6:26 PM CDTSevere Thunderstorm WatchSPCBarton, Benton, Boone, Callaway, Camden, Cedar and 28 more3 hr

Nearby

Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Kansas, 2017Every mesoscale discussion in 2017

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.