Alert archive / Kansas / Mesoscale Discussions in 2005

Mesoscale Discussion 976

May 23, 200520 counties in Colorado; 34 counties in Kansas; 20 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 23, 2005, 4:33 PM MDT for 20 counties in Colorado; 34 counties in Kansas; 20 counties in Nebraska. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued
May 23, 2005, 4:33 PM MDT (22:33 UTC)
Expired
May 23, 2005, 6:00 PM MDT
In force
87 min
Issued by
the Storm Prediction Center
All 74 counties

Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, El Paso County, CO, Elbert County, CO, Huerfano County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Prowers County, CO, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Pawnee County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Chase County, NE, Cheyenne County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Garden County, NE, Gosper County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE, Thomas County, NE

The radar

The Goodland radar (KGLD), 69 km from the middle of the area, began a volume at 22:36 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, 10.6 hours before the alert went out and 188 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 2005-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1216 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 2005-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939Sfc1 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
1216 J/kg
Mixed-layer CIN
-263 J/kg
Mixed-layer LCL
772 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
75 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.

000 
ACUS11 KWNS 232233
SWOMCD
SPC MCD 232233 
KSZ000-NEZ000-COZ000-240000-

MESOSCALE DISCUSSION 0976
NWS STORM PREDICTION CENTER NORMAN OK
0533 PM CDT MON MAY 23 2005

AREAS AFFECTED...PORTIONS SWRN NEB...ERN/S-CENTRAL CO...WRN KS

CONCERNING...TORNADO WATCH 315...

VALID 232233Z - 240000Z

SEVERE POTENTIAL IS EXPECTED TO EXPAND/SHIFT EWD FROM ERN PORTIONS
WW 315...ASSOCIATED WITH EWD/SEWD MOTION OF ACTIVITY NOW EXTENDING
IN BROKEN BAND FROM PERKINS COUNTY NEB SWWD TO CHEYENNE COUNTY CO. 
ADDITIONAL WW LIKELY BEFORE 23Z.  MAIN THREAT E OF WW 315 WILL BE
LARGE HAIL INITIALLY...WITH DAMAGING WIND ALSO POSSIBLE.

SFC MESOANALYSIS SHOWS DRYLINE ALONG WRN EDGE OF THIS
ACTIVITY...INTERSECTING COLD FRONT BETWEEN IML-OGA.  NARROW CORRIDOR
OF FAVORABLE MOISTURE AND BUOYANCY AHEAD OF DRYLINE/COLD FRONT
WIDENS ACROSS WRN KS WHERE SFC DEW POINTS ARE EXPECTED TO REMAIN IN
UPPER 50S TO LOW 60S F.  GIVEN STEEP MIDLEVEL LAPSE RATES PRESENT
OVER REGION...AND ANOTHER FEW HOURS OF SFC BASED BUOYANCY FROM
DIABATIC HEATING...2500-3500 MLCAPES ARE EXPECTED TO CONTINUE. THIS
WILL ALLOW DRYLINE TSTMS TO MOVE SEWD ACROSS MUCH OF WRN KS...SOME
OF WHICH MAY EVOLVE INTO EVENING/OVERNIGHT MCS.  AMBIENT LOW LEVEL
SHEAR PROFILES HAVE SOME WEAKNESSES AROUND 2-3 KM AGL BASED ON
VWP/PROFILER DATA AND GLD VWP...HOWEVER STORM SCALE AND BOUNDARY
INTERACTIONS MAY ENHANCE SHEAR LOCALLY.

..EDWARDS.. 05/23/2005

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

ATTN...WFO...ICT...GID...LBF...DDC...GLD...PUB...BOU...CYS...

37060262 37050551 41880327 41880014 41769995 41449978
41009977 40169947 39299907 38599876 37919934 37290039
37000101 37090259 41860017

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 1:08 PM MDTMesoscale DiscussionSPCCheyenne, Crowley, Elbert, El Paso, Kiowa, Kit Carson and 7 more67 min
May 23, 2:20 PM MDTTornado WatchSPCBaca, Bent, Cheyenne, Crowley, Elbert, El Paso and 14 more8 hr
May 22, 8:33 PM MDTMesoscale DiscussionSPCAllen, Butler, Chautauqua, Cherokee, Cowley, Crawford and 7 more117 min
May 22, 9:20 PM MDTSevere Thunderstorm WatchSPCButler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more6 hr
May 22, 10:35 PM MDTMesoscale DiscussionSPCButler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more115 min
May 23, 1:31 AM MDTMesoscale DiscussionSPCButler, Chautauqua, Cherokee, Cowley, Crawford, Elk and 14 more59 min
May 23, 2:25 AM MDTSevere Thunderstorm WatchSPCChautauqua8 hr
May 23, 5:48 AM MDTMesoscale DiscussionSPCChautauqua87 min
May 23, 3:36 PM MDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery84 min
May 23, 5:05 PM MDTSevere Thunderstorm WatchSPCDecatur, Finney, Gove, Graham, Grant, Gray and 17 more5 hr

Nearby

Mesoscale Discussions in Kansas, 2005Mesoscale Discussions in Colorado, 2005Mesoscale Discussions in Nebraska, 2005Every mesoscale discussion in 2005

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.