Alert archive / Missouri / Mesoscale Discussions in 2011

Mesoscale Discussion 853

May 22, 20114 states

The Storm Prediction Center issued this mesoscale discussion at May 22, 2011, 1:06 PM CDT for 4 states. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
May 22, 2011, 1:06 PM CDT (18:06 UTC)
Expired
May 22, 2011, 3:00 PM CDT
In force
114 min
Issued by
the Storm Prediction Center
All 53 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Marion County, AR, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Newton County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK

The radar

The Springfield radar (KSGF), 35 km from the middle of the area, began a volume at 18:07 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, 6.1 hours before the alert went out and 18 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 2011-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2645 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 2011-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 424 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
2645 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
678 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
424 m²/s²
0-3 km storm-relative helicity
422 m²/s²
Significant tornado parameter
0.0
Supercell composite
16.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 21, 8:31 PM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Clark, Cleburne and 45 more89 min
May 22, 5:18 AM CDTMesoscale DiscussionSPCArkansas, Calhoun, Clark, Cleburne, Cleveland, Conway and 32 more57 min
May 22, 7:03 AM CDTSevere Thunderstorm WatchSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 30 more7 hr
May 22, 11:15 AM CDTMesoscale DiscussionSPCArkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 26 more90 min
May 22, 1:09 PM CDTMesoscale DiscussionSPCArkansas, Crittenden, Cross, Grant, Jefferson, Lee and 7 more66 min
May 22, 1:27 PM CDTTornado WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more8 hr
May 22, 3:10 PM CDTMesoscale DiscussionSPCBaxter, Boone, Cleburne, Independence, Izard, Jackson and 9 more65 min
May 22, 3:24 PM CDTTornado WatchSPCBaxter, Boone, Clay, Cleburne, Conway, Craighead and 22 more6 hr
May 22, 3:48 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Washington117 min
May 22, 5:21 PM CDTMesoscale DiscussionSPCBaxter, Boone, Carroll, Clay, Cleburne, Conway and 22 more54 min
May 22, 6:10 PM CDTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Washington65 min
May 21, 7:18 PM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Clay, Cloud, Dickinson and 30 more57 min
May 22, 10:53 AM CDTMesoscale DiscussionSPCAnderson, Franklin, Johnson, Linn, Miami, Wyandotte2 hr
May 22, 12:51 PM CDTTornado WatchSPCLinn, Miami10 hr
May 21, 8:55 PM CDTMesoscale DiscussionSPCAtchison65 min
May 22, 4:41 AM CDTMesoscale DiscussionSPCAdair, Audrain, Boone, Clark, Knox, Lewis and 9 more2 hr
May 21, 7:08 PM CDTTornado WatchSPCAtoka, Bryan, Carter, Choctaw, Coal, Creek and 14 more3 hr
May 22, 12:42 PM CDTMesoscale DiscussionSPCCarter, Garvin, Jefferson, Johnston, Love, Marshall and 2 more2 hr
May 22, 1:47 PM CDTTornado WatchSPCAtoka, Bryan, Carter, Coal, Garvin, Hughes and 10 more7 hr
May 22, 3:47 PM CDTMesoscale DiscussionSPCCarter, Coal, Hughes, Johnston, Love, McIntosh and 5 more58 min
May 22, 6:34 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Coal, Garvin, Hughes and 10 more56 min

Nearby

Mesoscale Discussions in Missouri, 2011Mesoscale Discussions in Oklahoma, 2011Mesoscale Discussions in Kansas, 2011Every mesoscale discussion in 2011

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.