A dry line moved into eastern Kansas on the afternoon of May 4th. Severe thunderstorms quickly erupted in the mid afternoon hours and marched east northeast into Missouri. Several of the severe thunderstorms became tornadic. A supercell thunderstorm produced 4 seperate tornadoes over the northland of Kansas City. The strongest tornadoes reached F4 in intensity and moved over southern portions of Platte and Clay counties. In Platte county 14 buildings were destroyed, 43 suffered major damage and 149 had minor damage. There were no fatalities or injuries and total damage was estimated at $33.95 million dollars.In Clay county total damages were estimated at $91 million dollars. Several hundred homes were either destroyed or had major or minor damage. No fatalities were observed but there were 19 injuries. This was the most significant tornado outbeak in the Kansas City Metropolitan area, since the Pleasant Hill Missouri outbreak in 1977.

Hail in PLATTE, MISSOURI
From 04-MAY-03 15:20:00 to 04-MAY-03 15:20:00 (CST)
Location: WEATHERBY LAKE
Magnitude: 1.75 
Reported by: OFFICIAL NWS OBS.

Hail in JOHNSON, MISSOURI
From 04-MAY-03 20:52:00 to 04-MAY-03 20:52:00 (CST)
Location: KINGSVILLE
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Tornado in PETTIS, MISSOURI
From 04-MAY-03 18:35:00 to 04-MAY-03 18:36:00 (CST)
Location: LA MONTE
Tornado F-scale: F0
Property damage: 5K
Reported by: TRAINED SPOTTER

Brief tornado touchdown reported by storm spotter with minor damage.

Hail in NODAWAY, MISSOURI
From 04-MAY-03 17:25:00 to 04-MAY-03 17:25:00 (CST)
Location: CONCEPTION JCT
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in CLAY, MISSOURI
From 04-MAY-03 19:30:00 to 04-MAY-03 19:30:00 (CST)
Location: KEARNEY
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in HARRISON, MISSOURI
From 04-MAY-03 18:08:00 to 04-MAY-03 18:08:00 (CST)
Location: EAGLEVILLE
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:00:00 to 04-MAY-03 20:00:00 (CST)
Location: INDEPENDENCE
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in LAFAYETTE, MISSOURI
From 04-MAY-03 20:50:00 to 04-MAY-03 20:50:00 (CST)
Location: DOVER
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in JACKSON, MISSOURI
From 04-MAY-03 19:50:00 to 04-MAY-03 19:50:00 (CST)
Location: KANSAS CITY
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Tornado in CASS, MISSOURI
From 04-MAY-03 17:04:00 to 04-MAY-03 17:10:00 (CST)
Location: GARDEN CITY
Tornado F-scale: F2
Property damage: 200K
Reported by: TRAINED SPOTTER

Tornado briefly touched down at Highway 7 and County Road Z interchange. No damage and was reported by storm chaser. Tornado touched back down just north of the interchange, and then continued intermittently for 4 miles to the Johnson county line around Latour, near the inersection of Routes 2 and 131.

Hail in BUCHANAN, MISSOURI
From 04-MAY-03 14:55:00 to 04-MAY-03 14:55:00 (CST)
Location: ST JOSEPH
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in CARROLL, MISSOURI
From 04-MAY-03 17:15:00 to 04-MAY-03 17:15:00 (CST)
Location: NORBORNE
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in RANDOLPH, MISSOURI
From 04-MAY-03 15:40:00 to 04-MAY-03 15:40:00 (CST)
Location: CAIRO
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in RAY, MISSOURI
From 04-MAY-03 17:02:00 to 04-MAY-03 17:02:00 (CST)
Location: MILLVILLE
Magnitude: 1.50 
Reported by: LAW ENFORCEMENT

Hail in CLAY, MISSOURI
From 04-MAY-03 15:51:00 to 04-MAY-03 15:51:00 (CST)
Location: GLADSTONE
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in CARROLL, MISSOURI
From 04-MAY-03 20:30:00 to 04-MAY-03 20:30:00 (CST)
Location: BOGARD
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in CLAY, MISSOURI
From 04-MAY-03 16:20:00 to 04-MAY-03 16:20:00 (CST)
Location: EXCELSIOR SPGS
Magnitude: 1.75 
Reported by: AMATEUR RADIO

Hail in CLAY, MISSOURI
From 04-MAY-03 16:25:00 to 04-MAY-03 16:25:00 (CST)
Location: MOSBY
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:00:00 to 04-MAY-03 20:00:00 (CST)
Location: GRANDVIEW
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in MERCER, MISSOURI
From 04-MAY-03 19:00:00 to 04-MAY-03 19:00:00 (CST)
Location: PRINCETON
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Hail in JACKSON, MISSOURI
From 04-MAY-03 19:50:00 to 04-MAY-03 19:50:00 (CST)
Location: KANSAS CITY
Magnitude: 0.88 
Reported by: NWS EMPLOYEE(OFF DUTY)

Hail in JACKSON, MISSOURI
From 04-MAY-03 19:56:00 to 04-MAY-03 19:56:00 (CST)
Location: GRANDVIEW
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in NODAWAY, MISSOURI
From 04-MAY-03 17:00:00 to 04-MAY-03 17:00:00 (CST)
Location: MARYVILLE
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in RAY, MISSOURI
From 04-MAY-03 16:40:00 to 04-MAY-03 16:40:00 (CST)
Location: LAWSON
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:01:00 to 04-MAY-03 20:01:00 (CST)
Location: INDEPENDENCE
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:02:00 to 04-MAY-03 20:02:00 (CST)
Location: BLUE SPGS
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in RAY, MISSOURI
From 04-MAY-03 17:07:00 to 04-MAY-03 17:07:00 (CST)
Location: RICHMOND
Magnitude: 2.75 
Reported by: LAW ENFORCEMENT

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:08:00 to 04-MAY-03 20:08:00 (CST)
Location: LEES SUMMIT
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in JOHNSON, MISSOURI
From 04-MAY-03 17:06:00 to 04-MAY-03 17:06:00 (CST)
Location: KINGSVILLE
Magnitude: 0.88 
Reported by: EMERGENCY MANAGER

Hail in NODAWAY, MISSOURI
From 04-MAY-03 16:43:00 to 04-MAY-03 16:43:00 (CST)
Location: BURLINGTON JCT
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in NODAWAY, MISSOURI
From 04-MAY-03 17:54:00 to 04-MAY-03 17:54:00 (CST)
Location: MARYVILLE
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in HENRY, MISSOURI
From 04-MAY-03 21:30:00 to 04-MAY-03 21:30:00 (CST)
Location: CLINTON
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in JACKSON, MISSOURI
From 04-MAY-03 17:20:00 to 04-MAY-03 17:20:00 (CST)
Location: GRANDVIEW
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in BATES, MISSOURI
From 04-MAY-03 16:30:00 to 04-MAY-03 16:30:00 (CST)
Location: MERWIN
Magnitude: 1.00 
Reported by: OFFICIAL NWS OBS.

Thunderstorm Wind in RAY, MISSOURI
From 04-MAY-03 17:00:00 to 04-MAY-03 17:00:00 (CST)
Location: LAWSON
Magnitude: 52 EG
Reported by: TRAINED SPOTTER

Penny sized hail reported as well.

Hail in MACON, MISSOURI
From 04-MAY-03 22:05:00 to 04-MAY-03 22:05:00 (CST)
Location: MACON
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in ATCHISON, MISSOURI
From 04-MAY-03 17:00:00 to 04-MAY-03 17:00:00 (CST)
Location: TARKIO
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in BATES, MISSOURI
From 04-MAY-03 03:05:00 to 04-MAY-03 03:05:00 (CST)
Location: BUTLER
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in RAY, MISSOURI
From 04-MAY-03 17:03:00 to 04-MAY-03 17:03:00 (CST)
Location: DOCKERY
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in RAY, MISSOURI
From 04-MAY-03 17:15:00 to 04-MAY-03 17:15:00 (CST)
Location: STET
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in BUCHANAN, MISSOURI
From 04-MAY-03 15:02:00 to 04-MAY-03 15:02:00 (CST)
Location: ST JOSEPH
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in RAY, MISSOURI
From 04-MAY-03 19:50:00 to 04-MAY-03 19:50:00 (CST)
Location: KNOXVILLE
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in PETTIS, MISSOURI
From 04-MAY-03 19:05:00 to 04-MAY-03 19:05:00 (CST)
Location: HOUSTONIA
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in PLATTE, MISSOURI
From 04-MAY-03 14:45:00 to 04-MAY-03 14:45:00 (CST)
Location: WESTON
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in CLINTON, MISSOURI
From 04-MAY-03 16:15:00 to 04-MAY-03 16:15:00 (CST)
Location: TRIMBLE
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in DAVIESS, MISSOURI
From 04-MAY-03 17:40:00 to 04-MAY-03 17:40:00 (CST)
Location: PATTONSBURG
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in DAVIESS, MISSOURI
From 04-MAY-03 18:05:00 to 04-MAY-03 18:05:00 (CST)
Location: PATTONSBURG
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in CASS, MISSOURI
From 04-MAY-03 20:20:00 to 04-MAY-03 20:20:00 (CST)
Location: PLEASANT HILL
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in JACKSON, MISSOURI
From 04-MAY-03 19:40:00 to 04-MAY-03 19:40:00 (CST)
Location: KANSAS CITY
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in CLAY, MISSOURI
From 04-MAY-03 15:49:00 to 04-MAY-03 15:49:00 (CST)
Location: LIBERTY
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Hail in PLATTE, MISSOURI
From 04-MAY-03 15:32:00 to 04-MAY-03 15:32:00 (CST)
Location: TIFFANY SPGS
Magnitude: 0.88 
Reported by: TRAINED SPOTTER

Hail in SALINE, MISSOURI
From 04-MAY-03 21:15:00 to 04-MAY-03 21:15:00 (CST)
Location: MARSHALL
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Tornado in PLATTE, MISSOURI
From 04-MAY-03 15:35:00 to 04-MAY-03 15:40:00 (CST)
Location: PARKVILLE
Tornado F-scale: F4
Property damage: 32M
Reported by: AMATEUR RADIO

Tornado crossed from Wyandotte county into Platte county and continued to Clay county. There were 14 buildings destroyed, 42 with major damage. No injuries or fatalaties reported.

Hail in PLATTE, MISSOURI
From 04-MAY-03 15:40:00 to 04-MAY-03 15:40:00 (CST)
Location: PARKVILLE
Magnitude: 2.00 
Reported by: GENERAL PUBLIC

Hail in SULLIVAN, MISSOURI
From 04-MAY-03 20:57:00 to 04-MAY-03 20:57:00 (CST)
Location: BROWNING
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Tornado in JOHNSON, MISSOURI
From 04-MAY-03 17:10:00 to 04-MAY-03 17:53:00 (CST)
Location: LATOUR
Tornado F-scale: F2
Property damage: 1K
Reported by: EMERGENCY MANAGER

This is the Cass county tornado which entered Johnson county in open country around Latour. Reported by a trained spotter. tornado intermittently touched down for the next 18 miles in mainly open country.

Hail in NODAWAY, MISSOURI
From 04-MAY-03 17:23:00 to 04-MAY-03 17:23:00 (CST)
Location: CONCEPTION JCT
Magnitude: 0.75 
Reported by: OFFICIAL NWS OBS.

Hail in BUCHANAN, MISSOURI
From 04-MAY-03 14:52:00 to 04-MAY-03 14:52:00 (CST)
Location: ST JOSEPH
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in RAY, MISSOURI
From 04-MAY-03 16:55:00 to 04-MAY-03 16:55:00 (CST)
Location: RAYVILLE
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Hail in CLAY, MISSOURI
From 04-MAY-03 15:45:00 to 04-MAY-03 15:45:00 (CST)
Location: GLADSTONE
Magnitude: 3.50 
Reported by: OFFICIAL NWS OBS.

Tornado in CLAY, MISSOURI
From 04-MAY-03 15:45:00 to 04-MAY-03 15:55:00 (CST)
Location: GLADSTONE
Tornado F-scale: F4
Property damage: 31M
Reported by: TRAINED SPOTTER

New tornado touchdown near Shady Lane and Antioch in Gladstone...with F0 to F1 damage to trees and roofs. The tornado intensified quickly, and damage of marginal F4 intensity was noted around one mile northeast of this area, near the intersection of NE 63rd Terrace and North Jackson. Another small area of marginal F4 intensity was noted just northeast of this location, in the Carriage Hills subdivision, just south of Pleasant Valley Road near North Brighton. Areas of F1 to F3 intensity damage was noted around these specific neighborhoods. The tornado continued northeast, based on air surveys, to just shy of Interstate 435 before dissipating.

Hail in DAVIESS, MISSOURI
From 04-MAY-03 19:31:00 to 04-MAY-03 19:31:00 (CST)
Location: ALTAMONT
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Hail in DAVIESS, MISSOURI
From 04-MAY-03 19:33:00 to 04-MAY-03 19:33:00 (CST)
Location: COFFEY
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in DE KALB, MISSOURI
From 04-MAY-03 17:35:00 to 04-MAY-03 17:35:00 (CST)
Location: WEATHERBY
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in CHARITON, MISSOURI
From 04-MAY-03 15:20:00 to 04-MAY-03 15:20:00 (CST)
Location: SALISBURY
Magnitude: 0.88 
Reported by: OFFICIAL NWS OBS.

Hail in CASS, MISSOURI
From 04-MAY-03 01:56:00 to 04-MAY-03 01:56:00 (CST)
Location: BELTON
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in JACKSON, MISSOURI
From 04-MAY-03 20:00:00 to 04-MAY-03 20:00:00 (CST)
Location: LEES SUMMIT
Magnitude: 0.75 
Reported by: FIRE DEPT/RESCUE SQUAD

Tornado in JOHNSON, MISSOURI
From 04-MAY-03 17:58:00 to 04-MAY-03 18:19:00 (CST)
Location: WARRENSBURG
Tornado F-scale: F1
Property damage: 25K
Reported by: AMATEUR RADIO

Tornado touchdown was observed one half mile northwest of the intersection of SE 401st Road and SE 300th Road, or near the city landfill. Damage of F1 intensity was noted at this location to a private business. The tornado continued northeast to near Whiteman Air Force Base before dissipating 1 mile northeast of the base. Damage along the path was rated F0 throughout this area, along the rest of the path.

Tornado in PLATTE, MISSOURI
From 04-MAY-03 14:56:00 to 04-MAY-03 15:00:00 (CST)
Location: BEVERLY
Tornado F-scale: F1
Property damage: 1.95M
Reported by: TRAINED SPOTTER

Tornado in Leavenworth county crossed the Missouri River into Platte county around Missouri Route 92, near its intersection with North Farley Road. F1 damage was noted and extended one and a half miles to the east, with a width around 50 yards. Two barns had major damage and there were 16 homes with minor damage. There was also tree and fence damage noted.

Hail in JOHNSON, MISSOURI
From 04-MAY-03 21:15:00 to 04-MAY-03 21:15:00 (CST)
Location: LATOUR
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in CHARITON, MISSOURI
From 04-MAY-03 21:30:00 to 04-MAY-03 21:30:00 (CST)
Location: SALISBURY
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Tornado in CLAY, MISSOURI
From 04-MAY-03 15:40:00 to 04-MAY-03 15:42:00 (CST)
Location: GLADSTONE
Tornado F-scale: F4
Property damage: 50K
Reported by: TRAINED SPOTTER

Tornado moved in from Platte county and dissipated just before 169 highway south of I-29.

Hail in JOHNSON, MISSOURI
From 04-MAY-03 18:50:00 to 04-MAY-03 18:50:00 (CST)
Location: WARRENSBURG
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in JACKSON, MISSOURI
From 04-MAY-03 19:45:00 to 04-MAY-03 19:45:00 (CST)
Location: KANSAS CITY
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in BATES, MISSOURI
From 04-MAY-03 20:45:00 to 04-MAY-03 20:45:00 (CST)
Location: ADRIAN
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Hail in BATES, MISSOURI
From 04-MAY-03 21:15:00 to 04-MAY-03 21:15:00 (CST)
Location: BUTLER
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Tornado in CASS, MISSOURI
From 04-MAY-03 16:23:00 to 04-MAY-03 16:25:00 (CST)
Location: DREXEL
Tornado F-scale: F1
Reported by: TRAINED SPOTTER

Tornado briefly moved from Miami county Kansas into open country in Cass county Missouri, and dissipated 2 miles northeast of Drexel. No damage or injuries reported.

Hail in PLATTE, MISSOURI
From 04-MAY-03 15:30:00 to 04-MAY-03 15:30:00 (CST)
Location: WEATHERBY LAKE
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in RAY, MISSOURI
From 04-MAY-03 20:00:00 to 04-MAY-03 20:00:00 (CST)
Location: RICHMOND
Magnitude: 0.75 
Reported by: GENERAL PUBLIC

Hail in SALINE, MISSOURI
From 04-MAY-03 19:40:00 to 04-MAY-03 19:40:00 (CST)
Location: NAPTON
Magnitude: 1.50 
Reported by: GENERAL PUBLIC

Hail in NODAWAY, MISSOURI
From 04-MAY-03 17:43:00 to 04-MAY-03 17:43:00 (CST)
Location: MARYVILLE
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in LINN, MISSOURI
From 04-MAY-03 17:46:00 to 04-MAY-03 17:46:00 (CST)
Location: PURDIN
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in GRUNDY, MISSOURI
From 04-MAY-03 18:30:00 to 04-MAY-03 18:30:00 (CST)
Location: SPICKARD
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in GRUNDY, MISSOURI
From 04-MAY-03 18:42:00 to 04-MAY-03 18:42:00 (CST)
Location: SPICKARD
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Tornado in CLAY, MISSOURI
From 04-MAY-03 15:59:00 to 04-MAY-03 16:15:00 (CST)
Location: LIBERTY
Tornado F-scale: F2
Property damage: 60M
Reported by: LAW ENFORCEMENT

Tornado reported on the ground near Missouri Route 291, south of Missouri Route 152, it produced spotty damage northeast to downtown Liberty. Substantial damage was noted near the square in Libery, and to William Jewel College. The tornado tracked east along Missouri Route H into rural portions of Clay county before dissipating. Maximum intensity damage noted in the area was F2, based on surveys and input from local emergency management.

Hail in GENTRY, MISSOURI
From 04-MAY-03 17:30:00 to 04-MAY-03 17:30:00 (CST)
Location: ALBANY
Magnitude: 0.88 
Reported by: GENERAL PUBLIC

Hail in ANDREW, MISSOURI
From 04-MAY-03 14:10:00 to 04-MAY-03 14:10:00 (CST)
Location: SAVANNAH
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in ANDREW, MISSOURI
From 04-MAY-03 14:30:00 to 04-MAY-03 14:30:00 (CST)
Location: SAVANNAH
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in LAFAYETTE, MISSOURI
From 04-MAY-03 20:28:00 to 04-MAY-03 20:28:00 (CST)
Location: LEXINGTON
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in CLAY, MISSOURI
From 04-MAY-03 15:49:00 to 04-MAY-03 15:49:00 (CST)
Location: KEARNEY
Magnitude: 1.00 
Reported by: OFFICIAL NWS OBS.

Hail in CASS, MISSOURI
From 04-MAY-03 18:22:00 to 04-MAY-03 18:22:00 (CST)
Location: GARDEN CITY
Magnitude: 1.00 
Reported by: AMATEUR RADIO