Alert archive / Missouri / Tornado Watches in 2003
Tornado Watch 337
The Storm Prediction Center issued this tornado watch at May 10, 2003, 11:35 AM CDT for Linn County, Miami County, Kansas; 44 counties in Missouri. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 10, 2003, 11:35 AM CDT (16:35 UTC)
- Expired
- May 10, 2003, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Linn County, KS, Miami County, KS, Adair County, MO, Audrain County, MO, Bates County, MO, Benton County, MO, Boone County, MO, Caldwell County, MO, Callaway County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clark County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Knox County, MO, Lafayette County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Morgan County, MO, Pettis County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO
The radar
The Pleasant Hill radar (KEAX), 70 km from the middle of the area, began a volume at 16:35 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
39 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 1:20 PM CDT | Severe Thunderstorm Warning | EAX | Carroll | 55 min |
| May 10, 3:15 PM CDT | Severe Thunderstorm Warning | EAX | Carroll, Ray | 60 min |
| May 10, 3:17 PM CDT | Severe Thunderstorm Warning | EAX | DeKalb, Gentry | 43 min |
| May 10, 3:23 PM CDT | Severe Thunderstorm Warning | EAX | Johnson | 67 min |
| May 10, 3:25 PM CDT | Severe Thunderstorm Warning | EAX | Harrison | 50 min |
| May 10, 3:31 PM CDT | Severe Thunderstorm Warning | EAX | Daviess | 44 min |
| May 10, 3:39 PM CDT | Tornado Warning | EAX | Daviess, Harrison | 51 min |
| May 10, 3:47 PM CDT | Tornado Warning | EAX | Linn | 58 min |
| May 10, 4:02 PM CDT | Tornado Warning | EAX | Carroll | 58 min |
| May 10, 4:11 PM CDT | Severe Thunderstorm Warning | EAX | Mercer | 64 min |
| May 10, 4:16 PM CDT | Severe Thunderstorm Warning | EAX | Lafayette, Saline | 59 min |
| May 10, 4:18 PM CDT | Tornado Warning | EAX | Chariton | 42 min |
| May 10, 4:25 PM CDT | Tornado Warning | EAX | Adair, Sullivan | 65 min |
| May 10, 4:32 PM CDT | Tornado Warning | EAX | Saline | 43 min |
| May 10, 4:43 PM CDT | Tornado Warning | EAX | Macon | 47 min |
| May 10, 4:45 PM CDT | Severe Thunderstorm Warning | EAX | Putnam | 60 min |
| May 10, 4:54 PM CDT | Tornado Warning | LSX | Knox | 51 min |
| May 10, 4:55 PM CDT | Tornado Warning | EAX | Putnam | 65 min |
| May 10, 5:07 PM CDT | Severe Thunderstorm Warning | EAX | Chariton, Howard | 53 min |
| May 10, 5:12 PM CDT | Severe Thunderstorm Warning | EAX | Randolph | 63 min |
| May 10, 5:21 PM CDT | Tornado Warning | EAX | Randolph | 39 min |
| May 10, 5:21 PM CDT | Tornado Warning | LSX | Shelby | 39 min |
| May 10, 5:28 PM CDT | Tornado Warning | DVN | Clark, Scotland | 32 min |
| May 10, 5:35 PM CDT | Tornado Warning | LSX | Monroe | 40 min |
| May 10, 5:42 PM CDT | Tornado Warning | LSX | Boone, Moniteau | 48 min |
| May 10, 5:44 PM CDT | Tornado Warning | EAX | Cooper | 46 min |
| May 10, 5:44 PM CDT | Tornado Warning | LSX | Knox, Lewis | 31 min |
| May 10, 5:47 PM CDT | Tornado Warning | LSX | Lewis, Marion | 43 min |
| May 10, 5:56 PM CDT | Tornado Warning | DVN | Clark | 34 min |
| May 10, 5:58 PM CDT | Tornado Warning | EAX | Randolph | 32 min |
| May 10, 6:01 PM CDT | Tornado Warning | EAX | Putnam | 29 min |
| May 10, 6:04 PM CDT | Severe Thunderstorm Warning | LSX | Shelby | 41 min |
| May 10, 6:13 PM CDT | Tornado Warning | EAX | Henry | 47 min |
| May 10, 6:13 PM CDT | Tornado Warning | LSX | Marion, Monroe, Ralls | 47 min |
| May 10, 6:28 PM CDT | Tornado Warning | LSX | Lewis | 47 min |
| May 10, 6:29 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone | 61 min |
| May 10, 6:30 PM CDT | Severe Thunderstorm Warning | EAX | Saline | 45 min |
| May 10, 6:52 PM CDT | Severe Thunderstorm Warning | EAX | Chariton | 38 min |
| May 10, 6:53 PM CDT | Tornado Warning | LSX | Marion | 52 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 12:00Z, 4.6 hours before the alert went out and 182 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
- 271 J/kg
- Mixed-layer CIN
- -301 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 419 m²/s²
- 0-3 km storm-relative helicity
- 474 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 101630
SEL7
SPC WW 101635
KSZ000-MOZ000-110000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 337
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CDT SAT MAY 10 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EXTREME EAST CENTRAL KANSAS
CENTRAL AND NORTHERN MISSOURI
EFFECTIVE THIS SATURDAY MORNING AND EVENING FROM 1135 AM UNTIL 700
PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 30 MILES NORTH NORTHWEST OF KIRKSVILLE MISSOURI TO
40 MILES SOUTH OF KNOB NOSTER MISSOURI.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...CONTINUE...WW 335...WW 336...
DISCUSSION...EXPLOSIVE SEVERE THUNDERSTORM DEVELOPMENT IS EXPECTED
OVER EXTREME EASTERN KS OR WESTERN MO IN THE NEXT FEW HOURS...WITH
SEVERAL SUPERCELLS LIKELY. STRENGTH OF VERTICAL WIND SHEAR...HIGH
CAPE VALUES...AND VERY STRONG UPPER TROUGH SUGGEST THE POTENTIAL FOR
DAMAGING TORNADOES AS WELL AS DESTRUCTIVE WINDS AND VERY LARGE HAIL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25040.
...HART
402,0911 380,0920 380,0950 402,0941SPC 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, 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, 11:55 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
Tornado Watches in Missouri, 2003Tornado Watches in Kansas, 2003Every tornado 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.