Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 862

May 24, 20044 states

The Storm Prediction Center issued this mesoscale discussion at May 24, 2004, 9:30 AM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 24, 2004, 9:30 AM CDT (14:30 UTC)
Expired
May 24, 2004, 11:30 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 81 counties

Adams County, IA, Cass County, IA, Fremont County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Taylor County, IA, Allen County, KS, Anderson County, KS, Atchison County, KS, Bourbon County, KS, Brown County, KS, Chase County, KS, Coffey County, KS, Crawford County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Lyon County, KS, Marshall County, KS, Miami County, KS, Morris County, KS, Nemaha County, KS, Neosho County, KS, Osage County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Barton County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Gentry County, MO, Henry County, MO, Holt County, MO, Jackson County, MO, Nodaway County, MO, Platte County, MO, Ray County, MO, St. Clair County, MO, Vernon County, MO, Worth County, MO, Butler County, NE, Cass County, NE, Dodge County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Washington County, NE, York County, NE

The radar

The Topeka radar (KTWX), 56 km from the middle of the area, began a volume at 14:32 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

Topeka, KS (KTOP), launched 12:00Z, 2.5 hours before the alert went out and 59 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, Topeka, KS at 12:00Z on 2004-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 817 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, Topeka, KS at 12:00Z on 2004-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
817 J/kg
Mixed-layer CIN
-242 J/kg
Mixed-layer LCL
1250 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

058 
ACUS11 KWNS 241430
SWOMCD
SPC MCD 241430 
MOZ000-IAZ000-KSZ000-NEZ000-241630-

MESOSCALE DISCUSSION 0862
NWS STORM PREDICTION CENTER NORMAN OK
0930 AM CDT MON MAY 24 2004

AREAS AFFECTED...ERN KS...WRN MO...ERN NEB...SWRN IA

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 241430Z - 241630Z

SCATTERED ELEVATED TO NEAR SURFACE-BASED SEVERE STORMS ARE POSSIBLE
IN THE NEXT FEW HOURS FROM EASTERN NEB INTO WESTERN MO.  WW MAY BE
REQUIRED SOON.

LATEST VISIBLE SATELLITE/RADAR IMAGERY SHOWS ISOLATED THUNDERSTORMS
DEVELOPING IN NORTHEAST KS.  THESE STORMS ARE NEAR THE SURFACE WARM
FRONT WHICH EXTENDS EASTWARD INTO CENTRAL MO.  STORMS ALSO APPEAR TO
BE ALONG LEADING EDGE OF STRONGER UVVS AHEAD OF APPROACHING LEAD
SHORTWAVE...DEPICTED IN WATER VAPOR IMAGERY EXTENDING FROM CENTRAL
NEB INTO CENTRAL KS.  VERY TO EXTREMELY UNSTABLE AIRMASS IS IN PLACE
OVER THIS AREA...WITH STEEP LAPSE RATES AND AMPLE LOW LEVEL MOISTURE
CONTRIBUTING TO MUCAPE VALUES OVER 3500 J/KG.  DEEP LAYER VERTICAL
SHEAR PROFILES ARE ALSO QUITE FAVORABLE FOR SUPERCELL
STORMS...WHETHER ELEVATED OR SURFACE-BASED.

PRESENT INDICATIONS ARE THAT SCATTERED STORMS WILL CONTINUE TO
DEVELOP AHEAD OF TROUGH...WITH A RISK OF LARGE HAIL IN STRONGER
CELLS. TORNADO THREAT DOES NOT APPEAR AS HIGH AS LATER THIS
AFTERNOON...BUT ANY SURFACE-BASED STORM WOULD LIKELY HAVE SOME
TORNADO POTENTIAL.

..HART.. 05/24/2004

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

ATTN...WFO...SGF...DMX...EAX...OAX...TOP...ICT...GID...

39249704 40439754 41379774 41729633 41369475 39849399
37599364 37259482 37619630 38419671

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 10:10 AM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more6 hr
May 24, 11:30 AM CDTTornado WatchSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 19 more11 hr
May 24, 1:24 PM CDTMesoscale DiscussionSPCBlack Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Chickasaw and 17 more96 min
May 24, 2:08 PM CDTMesoscale DiscussionSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more67 min
May 24, 2:35 PM CDTTornado WatchSPCAppanoose, Boone, Butler, Cerro Gordo, Clarke, Dallas and 26 more7 hr
May 24, 2:39 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 18 more96 min
May 24, 5:26 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 61 more94 min
May 24, 5:45 PM CDTTornado WatchSPCAppanoose, Davis, Des Moines, Lee, Van Buren, Wayne5 hr
May 24, 12:37 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 26 more83 min
May 24, 1:10 PM CDTTornado WatchSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 27 more9 hr
May 24, 3:28 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 28 more92 min
May 24, 3:57 PM CDTMesoscale DiscussionSPCButler, Cowley, Greenwood, Sedgwick, Sumner93 min
May 24, 4:30 PM CDTTornado WatchSPCAllen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 16 more6 hr
May 24, 5:40 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 9 more95 min
May 24, 6:57 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 31 more48 min
May 23, 8:40 PM CDTMesoscale DiscussionSPCJefferson, Saint Charles, Sainte Genevieve, Saint Francois, Saint Louis, City of Saint Louis65 min
May 23, 9:54 PM CDTMesoscale DiscussionSPCBarry, Christian, Crawford, Dent, Douglas, Greene and 11 more96 min
May 24, 1:54 PM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 9 more96 min
May 24, 8:41 AM CDTMesoscale DiscussionSPCBoyd, Knox2 hr

Nearby

Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Missouri, 2004Mesoscale Discussions in Nebraska, 2004Every mesoscale discussion in 2004

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.