Alert archive / Kansas / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 331
The Storm Prediction Center issued this severe thunderstorm watch at May 10, 2003, 1:15 AM CDT for 31 counties in Kansas; Andrew County, Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 10, 2003, 1:15 AM CDT (06:15 UTC)
- Expired
- May 10, 2003, 6:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 32 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
The radar
The Wichita radar (KICT), 70 km from the middle of the area, began a volume at 06:15 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.
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 1:20 AM CDT | Severe Thunderstorm Warning | ICT | McPherson | 55 min |
| May 10, 1:48 AM CDT | Severe Thunderstorm Warning | ICT | Harvey | 42 min |
| May 10, 2:10 AM CDT | Severe Thunderstorm Warning | TOP | Dickinson, Morris | 50 min |
| May 10, 2:13 AM CDT | Severe Thunderstorm Warning | ICT | Marion | 47 min |
| May 10, 2:23 AM CDT | Tornado Warning | ICT | Harvey | 52 min |
| May 10, 2:32 AM CDT | Tornado Warning | ICT | Butler | 58 min |
| May 10, 2:32 AM CDT | Severe Thunderstorm Warning | TOP | Wabaunsee | 43 min |
| May 10, 2:45 AM CDT | Severe Thunderstorm Warning | TOP | Morris | 45 min |
| May 10, 2:55 AM CDT | Tornado Warning | ICT | Chase, Marion | 65 min |
| May 10, 2:59 AM CDT | Severe Thunderstorm Warning | TOP | Shawnee | 46 min |
| May 10, 3:04 AM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 26 min |
| May 10, 3:17 AM CDT | Severe Thunderstorm Warning | TOP | Wabaunsee | 28 min |
| May 10, 3:37 AM CDT | Tornado Warning | TOP | Coffey, Lyon | 53 min |
| May 10, 3:58 AM CDT | Severe Thunderstorm Warning | TOP | Douglas, Franklin, Osage | 47 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 6.3 hours before the alert went out and 156 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 100610
SEL1
SPC WW 100615
KSZ000-101100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 331
NWS STORM PREDICTION CENTER NORMAN OK
115 AM CDT SAT MAY 10 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTH CENTRAL AND NORTHEAST KANSAS
EFFECTIVE THIS SATURDAY MORNING FROM 115 AM UNTIL 600 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES WEST NORTHWEST OF SAINT
JOSEPH MISSOURI TO 45 MILES SOUTH SOUTHWEST OF WICHITA KANSAS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 328...WW 329...WW 330...
DISCUSSION...ELEVATED THUNDERSTORMS DEVELOPING OVER S CENTRAL KS
WILL SPREAD NEWD THE NEXT FEW HOURS TOWARD NE KS. RUC FORECAST
SOUNDINGS AND REGIONAL VWP/PROFILER DATA SUGGEST STRONG
DESTABILIZATION WILL OCCUR ABOVE THE SURFACE ON THE NOSE OF A 45-55
KT LOW-LEVEL JET...WITH ELEVATED CAPE VALUES INCREASING OVER KS TO
NEAR 2000 J/KG. THE STRONG ELEVATED INSTABILITY WILL SUPPORT A
THREAT OF LARGE HAIL... WHICH MAY BE ENHANCED BY SUFFICIENT VERTICAL
SHEAR FOR SUPERCELLS WITHIN THE CLOUD LAYER.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 24035.
...THOMPSON
400,0943 370,0963 370,0984 400,0964
WWUS20 KWNS 100610
SEL1
SPC WW 100615
KSZ000-101100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 331
NWS STORM PREDICTION CENTER NORMAN OK
115 AM CDT SAT MAY 10 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTH CENTRAL AND NORTHEAST KANSAS
EFFECTIVE THIS SATURDAY MORNING FROM 115 AM UNTIL 600 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES WEST NORTHWEST OF SAINT
JOSEPH MISSOURI TO 45 MILES SOUTH SOUTHWEST OF WICHITA KANSAS.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 328...WW 329...WW 330...
DISCUSSION...ELEVATED THUNDERSTORMS DEVELOPING OVER S CENTRAL KS
WILL SPREAD NEWD THE NEXT FEW HOURS TOWARD NE KS. RUC FORECAST
SOUNDINGS AND REGIONAL VWP/PROFILER DATA SUGGEST STRONG
DESTABILIZATION WILL OCCUR ABOVE THE SURFACE ON THE NOSE OF A 45-55
KT LOW-LEVEL JET...WITH ELEVATED CAPE VALUES INCREASING OVER KS TO
NEAR 2000 J/KG. THE STRONG ELEVATED INSTABILITY WILL SUPPORT A
THREAT OF LARGE HAIL... WHICH MAY BE ENHANCED BY SUFFICIENT VERTICAL
SHEAR FOR SUPERCELLS WITHIN THE CLOUD LAYER.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 24035.
...THOMPSON
400,0943 370,0963 370,0984 400,0964SPC 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, 2:28 AM CDT | Mesoscale Discussion | SPC | Atchison, Barber, Brown, Butler, Chase, Clay and 25 more | 92 min |
| 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
Severe Thunderstorm Watches in Kansas, 2003Severe Thunderstorm Watches in Missouri, 2003Every severe thunderstorm watch 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.