Alert archive / Kansas / Mesoscale Discussions in 2012

Mesoscale Discussion 527

April 14, 201226 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Apr 14, 2012, 1:44 PM CDT for 26 counties in Kansas. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
Apr 14, 2012, 1:44 PM CDT (18:44 UTC)
Expired
Apr 14, 2012, 2:45 PM CDT
In force
61 min
Issued by
the Storm Prediction Center
All 26 counties

Barton County, KS, Clark County, KS, Cloud County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Hodgeman County, KS, Jewell County, KS, Kiowa County, KS, Lincoln County, KS, Meade County, KS, Mitchell County, KS, Ness County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Smith County, KS, Stafford County, KS, Trego County, KS

The radar

The Dodge City radar (KDDC), 151 km from the middle of the area, began a volume at 18:46 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

Dodge City, (KDDC), launched 12:00Z, 6.7 hours before the alert went out and 146 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, Dodge City, at 12:00Z on 2012-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1516 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, Dodge City, at 12:00Z on 2012-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 413 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
1516 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
413 m²/s²
0-3 km storm-relative helicity
432 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.6

Open this sounding in Storm Lab

The text

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

024 
ACUS11 KWNS 141845
SWOMCD
SPC MCD 141844
KSZ000-141945-

MESOSCALE DISCUSSION 0527
NWS STORM PREDICTION CENTER NORMAN OK
0144 PM CDT SAT APR 14 2012

AREAS AFFECTED...CNTRL/WRN KS

CONCERNING...TORNADO WATCH 165...

VALID 141844Z - 141945Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 165 CONTINUES.

THE THREAT FOR SIGNIFICANTLY TORNADIC SUPERCELLS IS INCREASING OVER
PARTS OF SWRN KS INCLUDING THE DODGE CITY AREA. INFLOW INTO DISCRETE
SUPERCELLS EVOLVING OVER MEADE AND GRAY/FORD COUNTIES IS LIKELY
BECOMING SURFACE BASED PER MODIFIED RUC/OBSERVED SOUNDINGS. SBCAPE
VALUES OF 2000-3000 J/KG AMIDST STRONG DEEP-LAYER SHEAR WILL SUPPORT
RAPID INTENSIFICATION WITH THESE STORMS. STRONG LOW-LEVEL SHEAR --
0-1 KM SRH OF 297 M2/S2 PER HAVILAND KS PROFILER THAT ALSO INDICATES
A LARGE AMOUNT OF STREAMWISE VORTICITY CONCENTRATED IN THE LOWEST
0.5 KM AGL -- COULD SUPPORT SIGNIFICANT TORNADOES. ADDITIONAL
CLUSTERS OF STORMS INCLUDING SUPERCELLS FARTHER NORTH ACROSS THE WW
AREA WILL POSE MAINLY A LARGE/VERY LARGE HAIL THREAT AND PERHAPS A
COUPLE OF TORNADOES BEFORE A MORE FAVORABLE THERMODYNAMIC
ENVIRONMENT FOR SFC-BASED SUPERCELLS ARRIVES WITHIN A FEW HOURS.

..COHEN.. 04/14/2012

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

ATTN...WFO...TOP...ICT...GID...DDC...GLD...

LAT...LON   39769757 38909763 38019832 37219905 37100046 38360029
            39739966 39959850 39769757

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 9:14 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 17 more61 min
Apr 14, 3:42 AM CDTTornado WatchSPCChautauqua, Labette, Montgomery5 hr
Apr 14, 7:11 AM CDTMesoscale DiscussionSPCCherokee, Labette64 min
Apr 14, 9:42 AM CDTMesoscale DiscussionSPCClark, Finney, Ford, Gove, Grant, Gray and 10 more93 min
Apr 14, 10:43 AM CDTTornado Watch PDSSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 42 more7 hr
Apr 14, 11:44 AM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 40 more61 min
Apr 14, 12:11 PM CDTMesoscale DiscussionSPCButler, Chase, Chautauqua, Coffey, Cowley, Dickinson and 19 more64 min
Apr 14, 1:41 PM CDTMesoscale DiscussionSPCDecatur, Rawlins2 hr
Apr 14, 2:28 PM CDTMesoscale DiscussionSPCClay, Cloud, Jewell, Lincoln, Mitchell, Ottawa and 2 more32 min
Apr 14, 3:01 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Comanche, Edwards, Ellsworth and 10 more29 min
Apr 14, 3:48 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 33 more57 min
Apr 14, 4:47 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Nemaha58 min
Apr 14, 4:54 PM CDTMesoscale DiscussionSPCBarber, Barton, Clay, Cloud, Comanche, Dickinson and 32 more66 min
Apr 14, 5:00 PM CDTTornado WatchSPCDoniphan7 hr
Apr 14, 5:24 PM CDTTornado Watch PDSSPCBarber, Barton, Brown, Butler, Chase, Chautauqua and 57 more9 hr

Nearby

Mesoscale Discussions in Kansas, 2012Every mesoscale discussion in 2012

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.