Hail, Atchison
- When
- May 17, 12:30 AM CST
- Where
- Atchison County, 2 mi NE of Westboro
- Measured
- 1 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.550, -95.283
Flash Flooding and Hail in Missouri, May 17, 2001
21 hail, 8 thunderstorm wind, 2 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 31
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Kansas City, MO wrote its last area forecast discussion before the first event at May 16, 8:31 PM CST, 3 hours 59 minutes earlier.
Area forecast discussion, May 16, 8:31 PM CST, 3 hours 59 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 931 PM CDT WED MAY 16 2001 CONVECTION HAS BEEN SLOW TO DEVELOP THIS EVENING...AND WHAT HAS FORMED UP IN SOUTHEAST NEBRASKA AND SOUTHWEST IOWA...HAS NOT SHOWN ANY SIGNIFICANT SIGNS OF WORKING SOUTH. STILL FEEL THAT THERE IS POTENTIAL FOR TSTMS OVERNIGHT...ESPECIALLY ACROSS THE FAR NORTH...HOWEVER AM PLANNING ON TRIMMING POPS BACK A BIT IN MOST AREAS. BOUNDARY HAS NOT MOVED MUCH FURTHER SOUTH EITHER...SO MAY HAVE TO MAKE SOME ADJUSTMENTS IN TIMING WORDING FOR CONVECTION TOMORROW. .EAX... KS...NONE MO...NONE MJM
The radar
The Omaha radar (KOAX), 125 km away, was scanning. The volume nearest the first event began at 06:31 UTC.
Event by event
21 hail, 8 thunderstorm wind, 2 flash flood. Local standard time, as filed.
Hail, Nodaway
- When
- May 17, 12:40 AM CST
- Where
- Nodaway County, 3 mi NW of Elmo
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 40.550, -95.150
Hail, Nodaway
- When
- May 17, 2:20 AM CST
- Where
- Nodaway County, Burlington Jct
- Measured
- 1.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.450, -95.067
Hail, Nodaway
- When
- May 17, 2:40 AM CST
- Where
- Nodaway County, 2 mi E of Burlington Jct
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 40.450, -95.033
Hail, Harrison
- When
- May 17, 7:55 AM CST
- Where
- Harrison County, 1 mi W of Mt Moriah
- Measured
- 0.88 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 40.333, -93.817
Hail, Grundy
- When
- May 17, 10:22 AM CST
- Where
- Grundy County, 4 mi N of Laredo
- Measured
- 1.25 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 40.083, -93.450
Hail, Grundy
- When
- May 17, 11:10 AM CST
- Where
- Grundy County, 3 mi NW of Trenton
- Measured
- 1 in hail
- Reported by
- AMATEUR RADIO
- Coordinates
- 40.117, -93.650
Thunderstorm Wind, De Kalb
- When
- May 17, 11:25 AM CST
- Where
- De Kalb County, Weatherby
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.893, -94.405 (the zone’s center; the record gives no point)
Public reported wind gusts to 60 mph and penny sized hail.
Thunderstorm Wind, De Kalb
- When
- May 17, 11:40 AM CST
- Where
- De Kalb County, 2 mi E of Weatherby
- Measured
- 52 kt (60 mph)
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.917, -94.217
Thunderstorm Wind, Daviess
- When
- May 17, 11:50 AM CST
- Where
- Daviess County, Alta Vista
- Measured
- 61 kt (70 mph)
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.900, -94.200
Hail, Buchanan
- When
- May 17, 12:15 PM CST
- Where
- Buchanan County, Easton
- Measured
- 1 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.717, -94.433
Hail, Grundy
- When
- May 17, 12:17 PM CST
- Where
- Grundy County, 5 mi S of Trenton
- Measured
- 1 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.017, -93.617
Hail, Grundy
- When
- May 17, 12:20 PM CST
- Where
- Grundy County, 6 mi W of Trenton
- Measured
- 1.75 in hail
- Reported by
- BROADCAST MEDIA
- Coordinates
- 40.083, -93.733
Hail, Grundy
- When
- May 17, 12:22 PM CST
- Where
- Grundy County, 4 mi SE of Trenton
- Measured
- 1 in hail
- Reported by
- AMATEUR RADIO
- Coordinates
- 40.050, -93.567
Thunderstorm Wind, Grundy
- When
- May 17, 12:33 PM CST
- Where
- Grundy County, 7 mi S of Trenton
- Measured
- 57 kt (66 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.983, -93.617
Flash Flood, Daviess
- When
- May 17, 12:38 PM CST to 3:38 PM CST
- Where
- Daviess County, 1 mi E of Coffey
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.961, -93.985 (the zone’s center; the record gives no point)
Law enforcement reported 3 to 4 feet of water over route B.
Flash Flood, Grundy
- When
- May 17, 12:38 PM CST to 3:38 PM CST
- Where
- Grundy County, 2 mi S of Trenton
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.114, -93.565 (the zone’s center; the record gives no point)
Law enforcement reported 1.5 feet of water over highway 65.
Thunderstorm Wind, Caldwell
- When
- May 17, 12:40 PM CST
- Where
- Caldwell County, Braymer
- Measured
- 52 kt (60 mph)
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.583, -93.800
Large trees were reported down.
Thunderstorm Wind, Platte
- When
- May 17, 1:12 PM CST
- Where
- Platte County, Weston
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 39.381, -94.774 (the zone’s center; the record gives no point)
Emergency manager reported 70 mph thunderstorm wind gusts with 3/4 inch hail.
Hail, Clay
- When
- May 17, 1:20 PM CST
- Where
- Clay County, Mosby
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.317, -94.300
Thunderstorm Wind, Platte
- When
- May 17, 1:20 PM CST
- Where
- Platte County, Riverside
- Measured
- 52 kt (60 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.167, -94.617
Thunderstorm winds broke tree limbs up to 8 inches in diameter.
Hail, Platte
- When
- May 17, 1:40 PM CST
- Where
- Platte County, Riverside
- Measured
- 0.88 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.167, -94.617
Hail, Carroll
- When
- May 17, 1:45 PM CST
- Where
- Carroll County, 3 mi NW of De Witt
- Measured
- 0.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.417, -93.267
Public reported 12 inch diameter tree blown down and 3/4 inch hail.
Hail, Ray
- When
- May 17, 1:56 PM CST
- Where
- Ray County, Orrick
- Measured
- 1 in hail
- Reported by
- AMATEUR RADIO
- Coordinates
- 39.217, -94.133
Hail, Clay
- When
- May 17, 2:10 PM CST
- Where
- Clay County, North Kansas City
- Measured
- 0.88 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.150, -94.583
Hail, Jackson
- When
- May 17, 2:13 PM CST
- Where
- Jackson County, Kansas City
- Measured
- 0.75 in hail
- Reported by
- FIRE DEPT/RESCUE SQUAD
- Coordinates
- 39.083, -94.567
Hail, Jackson
- When
- May 17, 2:15 PM CST
- Where
- Jackson County, Kansas City
- Measured
- 0.88 in hail
- Reported by
- AMATEUR RADIO
- Coordinates
- 39.083, -94.567
Hail, Lafayette
- When
- May 17, 2:15 PM CST
- Where
- Lafayette County, Concordia
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 38.983, -93.583
Hail, Howard
- When
- May 17, 2:35 PM CST
- Where
- Howard County, Fayette
- Measured
- 1.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.150, -92.700
Public reported 13/4 inch hail and wind gusts to 60 mph.
Hail, Howard
- When
- May 17, 3:06 PM CST
- Where
- Howard County, Fayette
- Measured
- 0.75 in hail
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 39.150, -92.700
Thunderstorm Wind, Johnson
- When
- May 17, 3:10 PM CST
- Where
- Johnson County, Warrensburg
- Measured
- 52 kt (60 mph)
- Reported by
- GENERAL PUBLIC
- Coordinates
- 38.767, -93.750
Public reported large tree limbs down.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Hail in Oklahoma, May 17 to 18, 2001
- Hail and Damaging Winds in Texas, May 17 to 18, 2001
- Hail and Damaging Winds in Colorado, May 17 to 20, 2001
- Flash Flooding in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17 to 19, 2001
- Hail and Damaging Winds in West Virginia, May 17, 2001
- Damaging Winds in Texas, May 17 to 18, 2001
- Flash Flood in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17, 2001
- Flash Flooding in Kentucky, May 17, 2001
- Flash Flood and Hail in West Virginia, May 17, 2001
- Flash Flood in Missouri, May 17, 2001
More
Every storm in Missouri in 2001Every state in 2001This day in weather historyWarnings in Missouri, May 2001
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5245626, 5245721, 5245722, 5245723, 5245714, 5245707, 5245708, 5245705, 5245706, 5245703, 5245698, 5245709, 5245710, 5245711, 5245712, 5245704, 5245713, 5245699, 5245724, 5245701, 5245725, 5245726, 5245700, 5245727, 5245702, 5245717, 5245718, 5245720, 5245715, 5245716, 5245719.