Alert archive / Kansas / Mesoscale Discussions in 2011

Mesoscale Discussion 932

May 24, 201133 counties in Kansas; 4 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 24, 2011, 2:35 PM CDT for 33 counties in Kansas; 4 counties in Oklahoma. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
May 24, 2011, 2:35 PM CDT (19:35 UTC)
Expired
May 24, 2011, 4:00 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 37 counties

Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Chautauqua County, KS, Coffey County, KS, Comanche County, KS, Cowley County, KS, Dickinson County, KS, Edwards County, KS, Elk County, KS, Ellsworth County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Kingman County, KS, Kiowa County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Morris County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Wilson County, KS, Woodson County, KS, Alfalfa County, OK, Grant County, OK, Kay County, OK, Woods County, OK

The radar

The Wichita radar (KICT), 37 km from the middle of the area, began a volume at 19:39 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

Lamont, OK (KLMN), launched 12:00Z, 7.6 hours before the alert went out and 143 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, Lamont, OK at 12:00Z on 2011-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 434 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2011-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 375 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
434 J/kg
Mixed-layer CIN
-401 J/kg
Mixed-layer LCL
684 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
375 m²/s²
0-3 km storm-relative helicity
420 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

675 
ACUS11 KWNS 241935
SWOMCD
SPC MCD 241935 
KSZ000-OKZ000-242100-

MESOSCALE DISCUSSION 0932
NWS STORM PREDICTION CENTER NORMAN OK
0235 PM CDT TUE MAY 24 2011

AREAS AFFECTED...CNTRL AND SRN KS...NRN OK

CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY 

VALID 241935Z - 242100Z

A SEVERE THREAT WILL LIKELY DEVELOP ACROSS NRN OK AND SRN KS LATE
THIS AFTERNOON AS STORMS INITIATE AND MOVE INTO THE REGION FROM THE
SOUTHWEST. A TORNADO WATCH WILL BE REQUIRED PRIOR TO 21Z.

SFC ANALYSIS SHOWS A RAPIDLY DEEPENING 994 MB LOW ACROSS THE ERN OK
PANHANDLE WITH A DRYLINE MOVING EWD ACROSS WRN OK. THUNDERSTORMS ARE
DEVELOPING ALONG THE DRYLINE AHEAD OF A STRONGLY UNSTABLE AIRMASS
WHERE MESOANALYSIS SHOWS MLCAPE VALUES RANGING FROM 3500 TO 4500
J/KG. IN ADDITION...A WELL-DEFINED MID-LEVEL JET 70 TO 85 KT
ENTERING WEST TX WILL EJECT NEWD ACROSS THE MCD AREA LATE THIS
AFTERNOON INTO EARLY THIS EVENING. THIS WILL CREATE VERY FAVORABLE
DEEP LAYER SHEAR PROFILES FOR SUPERCELLS. THIS POTENTIAL WILL
INCREASE AS THE SUPERCELLS CURRENTLY IN WRN OK MOVE NEWD INTO SRN KS
OVER THE NEXT COUPLE OF HOURS. AS THE UPPER-LEVEL TROUGH MOVES INTO
THE REGION FROM THE WEST...THE LOW-LEVEL JET WILL QUICKLY STRENGTHEN
RESULTING IN VERY FAVORABLE CONDITIONS FOR TORNADOES. A THREAT FOR
STRONG LONG-TRACK TORNADOES WILL LIKELY EXIST WITH THE MORE DOMINANT
SUPERCELLS WITH THIS THREAT INCREASING WITH TIME.

..BROYLES.. 05/24/2011

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

ATTN...WFO...TSA...TOP...ICT...OUN...DDC...

LAT...LON   39049645 39019804 38839927 38349974 37639976 37059947
            36649888 36609741 36949604 37449564 38149562 39049645

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 2:24 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Gove, Graham, Hodgeman and 12 more96 min
May 24, 2:42 AM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Ellis, Gove, Graham, Greeley and 15 more4 hr
May 24, 6:21 AM CDTMesoscale DiscussionSPCBarton, Chase, Clay, Cloud, Dickinson, Edwards and 25 more54 min
May 24, 6:51 AM CDTSevere Thunderstorm WatchSPCBarton, Brown, Butler, Chase, Clay, Cloud and 37 more5 hr
May 24, 9:18 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Chase, Clay and 28 more87 min
May 24, 10:37 AM CDTMesoscale DiscussionSPCCheyenne, Rawlins, Sherman, Thomas83 min
May 24, 12:59 PM CDTMesoscale DiscussionSPCBarton, Edwards, Ellis, Ellsworth, Finney, Ford and 26 more91 min
May 24, 1:27 PM CDTTornado WatchSPCBarber, Clark, Comanche, Edwards, Ellis, Finney and 30 more6 hr
May 24, 3:14 PM CDTTornado Watch PDSSPCAllen, Barton, Butler, Chase, Chautauqua, Cowley and 20 more9 hr
May 24, 5:03 PM CDTMesoscale DiscussionSPCClay, Cloud, Dickinson, Geary, Jewell, Lincoln and 11 more57 min
May 24, 5:19 PM CDTTornado WatchSPCAnderson, Brown, Clay, Cloud, Coffey, Dickinson and 23 more7 hr
May 23, 7:50 PM CDTMesoscale DiscussionSPCComanche, Cotton, Jackson, Jefferson, Stephens, Tillman55 min
May 23, 9:22 PM CDTMesoscale DiscussionSPCAdair, Blaine, Canadian, Cherokee, Creek, Haskell and 15 more23 min
May 23, 9:42 PM CDTSevere Thunderstorm WatchSPCBlaine, Caddo, Canadian, Cleveland, Creek, Grady and 18 more6 hr
May 24, 2:08 AM CDTMesoscale DiscussionSPCCherokee, Creek, Haskell, LeFlore, McIntosh, Muskogee and 5 more97 min
May 24, 12:18 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Carter, Cleveland, Comanche and 21 more87 min
May 24, 12:47 PM CDTTornado Watch PDSSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 51 more11 hr
May 24, 4:48 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Carter, Cleveland, Cotton, Creek and 21 more87 min
May 24, 6:43 PM CDTMesoscale DiscussionSPCBryan, Carter, Cleveland, Coal, Creek, Garvin and 17 more62 min

Nearby

Mesoscale Discussions in Kansas, 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.