Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 883

May 23, 201113 counties in Kansas; 11 counties in Missouri; 5 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 23, 2011, 5:41 AM CDT for 13 counties in Kansas; 11 counties in Missouri; 5 counties in Oklahoma. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
May 23, 2011, 5:41 AM CDT (10:41 UTC)
Expired
May 23, 2011, 7:15 AM CDT
In force
94 min
Issued by
the Storm Prediction Center
All 29 counties

Allen County, KS, Anderson County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Elk County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barton County, MO, Bates County, MO, Cedar County, MO, Dade County, MO, Hickory County, MO, Jasper County, MO, Lawrence County, MO, Newton County, MO, Polk County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 138 km from the middle of the area, began a volume at 10:44 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 00:00Z, 10.7 hours before the alert went out and 125 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 00:00Z on 2011-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3961 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 00:00Z on 2011-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 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
3961 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
3.7
Supercell composite
15.9

Open this sounding in Storm Lab

The text

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

313 
ACUS11 KWNS 231042
SWOMCD
SPC MCD 231041
MOZ000-OKZ000-KSZ000-231215-

MESOSCALE DISCUSSION 0883
NWS STORM PREDICTION CENTER NORMAN OK
0541 AM CDT MON MAY 23 2011

AREAS AFFECTED...SOUTHEAST KS/WESTERN MO/NORTHEAST OK

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 231041Z - 231215Z

THE STRONGEST TSTMS ACROSS SOUTHEAST KS/WESTERN MO/NORTHEAST OK
EARLY THIS MORNING MAY BE CAPABLE OF SEVERE HAIL. A SEVERE TSTM
WATCH MAY BE NEEDED.

AMID/NEAR A BROADER AGITATED MID LEVEL CLOUD DECK ACROSS KS/FAR
NORTHERN OK...ELEVATED TSTMS HAVE RECENTLY DEVELOPED/INCREASED
ACROSS FAR SOUTHEAST KS IN THE PREDAWN HOURS. NEAR THE TERMINUS OF A
40-50 KT BRANCH OF A SOUTHWESTERLY LOW LEVEL JET...THIS ACTIVITY IS
OCCURRING WITHIN A STEEP LAPSE/AMPLE ELEVATED INSTABILITY
ENVIRONMENT ON THE EDGE OF THE CAP ALOFT AS PER THE 05Z OBSERVED
LAMONT OK RAOB. VERY STEEP LAPSE RATES/STRONG ELEVATED INSTABILITY
WILL SUPPORT SEVERE HAIL WITH THIS STRONGEST TSTMS AMID AN
ADEQUATELY SHEARED CLOUD BEARING LAYER.

..GUYER.. 05/23/2011

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN...

LAT...LON   36219611 37099696 38359547 38489426 37979318 37179355
            36219611

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 7:52 PM CDTMesoscale DiscussionSPCCherokee, Crawford53 min
May 23, 5:07 AM CDTMesoscale DiscussionSPCBourbon, Chautauqua, Cherokee, Cowley, Crawford, Elk and 6 more113 min
May 23, 6:08 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 11 more7 hr
May 23, 7:38 AM CDTMesoscale DiscussionSPCAllen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 3 more97 min
May 23, 12:12 PM CDTMesoscale DiscussionSPCCherokee, Labette93 min
May 23, 4:38 PM CDTMesoscale DiscussionSPCButler, Chase, Cowley, Elk, Greenwood, Harper and 6 more97 min
May 22, 8:26 PM CDTTornado WatchSPCBarry, Bollinger, Butler, Cape Girardeau, Carter, Crawford and 33 more8 hr
May 22, 8:47 PM CDTTornado WatchSPCDunklin, Pemiscot7 hr
May 22, 10:24 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Madison, Perry, Sainte Genevieve and 2 more66 min
May 22, 11:46 PM CDTMesoscale DiscussionSPCDunklin, Pemiscot89 min
May 23, 10:34 AM CDTMesoscale DiscussionSPCBarry, Barton, Bollinger, Butler, Camden, Carter and 37 more86 min
May 23, 10:55 AM CDTSevere Thunderstorm WatchSPCAudrain, Bollinger, Boone, Butler, Callaway, Cape Girardeau and 28 more7 hr
May 23, 12:37 PM CDTMesoscale DiscussionSPCCity of Saint Louis83 min
May 23, 1:16 PM CDTMesoscale DiscussionSPCButler, Dunklin, New Madrid, Pemiscot, Ripley89 min
May 23, 1:34 PM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot6 hr
May 23, 3:58 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Iron and 12 more92 min
May 22, 8:10 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Garvin and 11 more65 min
May 23, 9:14 AM CDTMesoscale DiscussionSPCLeFlore, McCurtain, Pushmataha91 min
May 23, 2:08 PM CDTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 15 more97 min
May 23, 2:30 PM CDTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 26 more8 hr
May 23, 5:07 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Coal, Creek, Delaware, Garvin and 21 more23 min
May 23, 5:24 PM CDTTornado WatchSPCAdair, Cherokee, Creek, Haskell, Latimer, LeFlore and 13 more4 hr
May 23, 6:51 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 12 more84 min

Nearby

Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Missouri, 2011Mesoscale Discussions in Oklahoma, 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.