Alert archive / Kansas / Mesoscale Discussions in 2003

Mesoscale Discussion 899

May 10, 200331 counties in Kansas; Andrew County, Buchanan County, Missouri

The Storm Prediction Center issued this mesoscale discussion at May 10, 2003, 2:28 AM CDT for 31 counties in Kansas; Andrew County, Buchanan County, Missouri. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: May 10, 2003, 2:28 AM CDT (07:28 UTC)
Expired: May 10, 2003, 4:00 AM CDT
In force: 92 min
Issued by: the Storm Prediction Center

All 33 counties

Atchison County, KS, Barber County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Cowley County, KS, Dickinson County, KS, Doniphan County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Kingman County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Nemaha County, KS, Osage County, KS, Pottawatomie County, KS, Reno County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Andrew County, MO, Buchanan County, MO

The radar

The Topeka radar (KTWX), 68 km from the middle of the area, began a volume at 07:29 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 00:00Z, 7.5 hours before the alert went out and 114 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 173 J/kg
Mixed-layer CIN: -412 J/kg
Mixed-layer LCL: 1579 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 422 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

221 
ACUS11 KWNS 100729
SWOMCD
SPC MCD 100728 
MOZ000-KSZ000-NEZ000-100900-

MESOSCALE DISCUSSION 0899
NWS STORM PREDICTION CENTER NORMAN OK
0228 AM CDT SAT MAY 10 2003

AREAS AFFECTED...CNTRL KS

CONCERNING...SEVERE THUNDERSTORM WATCH 331...

VALID 100728Z - 100900Z

THE POTENTIAL FOR STORMS TO BECOME SURFACE-BASED INVOF SURFACE WARM
FRONT IS BEING MONITORED CLOSELY.

WICHITA VOLUMETRIC REFLECTIVITY/VELOCITY DATA INDICATE THAT A
SUPERCELL HAS RECENTLY DEVELOPED OVER ERN HARVEY COUNTY IN S-CNTRL
KS. LATEST SURFACE OBSERVATIONS FROM ICT EWD TO CNU SUGGEST THAT
THIS STORM HAS INITIATED WITHIN ROUGHLY 20-30 MILES OF THE SURFACE
WARM FRONT. RECENT ICT VWP DATA INDICATE AN INCREASING TORNADO
POTENTIAL ALONG THE WARM FRONT WITH WITH 0-2KM SRH VALUES OF 500-600
M2/S2 USING THE OBSERVED STORM MOTION.

A TORNADO WATCH MAY BE REQUIRED ALONG THE WARM FRONT SHORTLY GIVEN
THIS INCREASING TORNADO THREAT.

..MEAD.. 05/10/2003

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

ATTN...WFO...EAX...OAX...TOP...ICT...DDC...

37879827 38479794 39069750 39719715 39919690 40029683
40039649 40009589 40009538 40029497 40009462 39939457
38849540 38049609 37529646 37079668 37039719 37079844
37079874 37079886 37439858

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 9, 7:45 PM CDT	Tornado Watch	SPC	Butler, Chase, Coffey, Cowley, Elk, Greenwood and 7 more	5 hr
May 9, 7:47 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 5 more	88 min
May 9, 10:04 PM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 20 more	26 min
May 9, 11:00 PM CDT	Severe Thunderstorm Watch	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 14 more	6 hr
May 10, 12:49 AM CDT	Mesoscale Discussion	SPC	Atchison, Barber, Brown, Butler, Chase, Clay and 24 more	86 min
May 10, 1:15 AM CDT	Severe Thunderstorm Watch	SPC	Atchison, Barber, Brown, Butler, Chase, Clay and 25 more	5 hr
May 10, 3:05 AM CDT	Tornado Watch	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 17 more	5 hr
May 10, 3:15 AM CDT	Severe Thunderstorm Watch	SPC	Atchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more	5 hr
May 10, 5:27 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more	93 min
May 10, 7:06 AM CDT	Mesoscale Discussion	SPC	Atchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more	54 min
May 10, 9:16 AM CDT	Mesoscale Discussion	SPC	Chautauqua, Cherokee, Labette, Montgomery, Neosho, Wilson	3 hr
May 10, 10:54 AM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 2 more	66 min
May 10, 10:58 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Coffey and 18 more	2 hr
May 10, 11:35 AM CDT	Tornado Watch	SPC	Linn, Miami	7 hr
May 10, 11:55 AM CDT	Tornado Watch	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more	7 hr
May 10, 1:42 PM CDT	Mesoscale Discussion	SPC	Miami	2 hr
May 10, 1:59 PM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more	2 hr
May 10, 1:22 AM CDT	Mesoscale Discussion	SPC	Newton	83 min
May 10, 5:43 AM CDT	Mesoscale Discussion	SPC	Audrain, Boone, Callaway, Clark, Knox, Lewis and 11 more	92 min
May 10, 5:50 AM CDT	Severe Thunderstorm Watch	SPC	Audrain, Boone, Callaway, Clark, Cole, Franklin and 19 more	5 hr
May 10, 9:25 AM CDT	Mesoscale Discussion	SPC	Iron, Jefferson, Madison, Perry, Sainte Genevieve, Saint Francois and 1 more	2 hr
May 10, 3:17 PM CDT	Mesoscale Discussion	SPC	Clark, Schuyler, Scotland	58 min
May 10, 3:30 PM CDT	Mesoscale Discussion	SPC	Crawford, Dent, Douglas, Franklin, Gasconade, Howell and 16 more	2 hr
May 10, 3:50 PM CDT	Tornado Watch	SPC	Putnam, Schuyler, Scotland	6 hr
May 10, 4:00 PM CDT	Tornado Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 22 more	5 hr
May 10, 4:48 PM CDT	Mesoscale Discussion	SPC	Adair, Audrain, Benton, Boone, Callaway, Chariton and 24 more	87 min
May 10, 5:40 PM CDT	Tornado Watch	SPC	Adair, Audrain, Benton, Boone, Callaway, Chariton and 32 more	5 hr
May 10, 6:41 PM CDT	Mesoscale Discussion	SPC	Audrain, Boone, Callaway, Cole, Cooper, Lewis and 13 more	64 min

Nearby

Mesoscale Discussions in Kansas, 2003 Mesoscale Discussions in Missouri, 2003 Every mesoscale discussion in 2003

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.