Strong to severe thunderstorms moved along the Highway 54 corridor across Kansas and Missouri. The storms produced very heavy rainfall with rainfall totals exceeding 4.50 inches at some locations. The heavy rainfall, lead to significant flooding of low water crossings, small streams and urban areas. Hail to the size of ping pong balls and winds up to 60 mph were also reported with the storms as they moved across the Ozarks.

Hail in MILLER, MISSOURI
From 12-MAY-10 00:00:00 to 12-MAY-10 00:00:00 (CST-6)
Location: LAKE OZARK
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Hail in CEDAR, MISSOURI
From 12-MAY-10 00:40:00 to 12-MAY-10 00:40:00 (CST-6)
Location: STOCKTON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DALLAS, MISSOURI
From 12-MAY-10 01:32:00 to 12-MAY-10 01:32:00 (CST-6)
Location: TUNAS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in LACLEDE, MISSOURI
From 12-MAY-10 02:00:00 to 12-MAY-10 02:00:00 (CST-6)
Location: DOVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flash Flood in VERNON, MISSOURI
From 12-MAY-10 03:00:00 to 12-MAY-10 04:46:00 (CST-6)
Location: MILO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

State Route BB east of Stockade was closed due to high water.

Hail in PULASKI, MISSOURI
From 12-MAY-10 02:30:00 to 12-MAY-10 02:30:00 (CST-6)
Location: ROBERT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Flash Flood in CAMDEN, MISSOURI
From 12-MAY-10 02:00:00 to 12-MAY-10 05:38:00 (CST-6)
Location: BEACH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads and low water crossings in and around Osage Beach were reported as flooded and impassable.

Flash Flood in HICKORY, MISSOURI
From 12-MAY-10 02:00:00 to 12-MAY-10 05:38:00 (CST-6)
Location: NEMO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several low water crossings on County Road 220 near Preston were reported as flooded and impassable.

Flash Flood in POLK, MISSOURI
From 12-MAY-10 03:00:00 to 12-MAY-10 05:38:00 (CST-6)
Location: RONDO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The low water crossing on Route V west of Highway 83 was closed when it became impassable due to flooding.

Flash Flood in POLK, MISSOURI
From 12-MAY-10 03:00:00 to 12-MAY-10 05:38:00 (CST-6)
Location: RONDO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The low water crossing on Route V west of Highway 83 was closed when it became impassable due to flooding.

Flash Flood in CEDAR, MISSOURI
From 12-MAY-10 03:30:00 to 12-MAY-10 05:38:00 (CST-6)
Location: STOCKTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous streets and roads in Stockton were closed to motorists as a result of flooding.

Flash Flood in PHELPS, MISSOURI
From 12-MAY-10 03:30:00 to 12-MAY-10 05:38:00 (CST-6)
Location: VIDA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The low water crossing on County Road 5220, south of Rolla, was flooded to an unknown depth and impassable.

Flash Flood in BENTON, MISSOURI
From 12-MAY-10 01:49:00 to 12-MAY-10 11:20:00 (CST-6)
Location: WARSAW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several roads in Warsaw were flooded and impassable due to heavy rains.

Flash Flood in BENTON, MISSOURI
From 12-MAY-10 03:00:00 to 12-MAY-10 11:20:00 (CST-6)
Location: EDWARDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A local observer reported four feet of water flowing over Hereford Road.

Flash Flood in MILLER, MISSOURI
From 12-MAY-10 04:00:00 to 12-MAY-10 11:20:00 (CST-6)
Location: IBERIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous roads and low water crossings were flooded and impassable to motorists.

Flash Flood in BENTON, MISSOURI
From 12-MAY-10 01:49:00 to 12-MAY-10 11:20:00 (CST-6)
Location: KNOBBY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Water was reported flowing over Highway 7 to a depth of ten inches near Climax Springs.

Flash Flood in VERNON, MISSOURI
From 12-MAY-10 03:00:00 to 12-MAY-10 04:46:00 (CST-6)
Location: NEVADA ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Pole Bottom Road just south of the Douglas Branch Conservation Area was impassable due to flooding.

Flash Flood in POLK, MISSOURI
From 12-MAY-10 00:30:00 to 12-MAY-10 05:38:00 (CST-6)
Location: RONDO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Low water crossings on Highways 83 and V were reported as flooded and impassable.

Thunderstorm Wind in HICKORY, MISSOURI
From 12-MAY-10 00:50:00 to 12-MAY-10 00:50:00 (CST-6)
Location: WEAUBLEAU
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Severe thunderstorm wind gusts knocked down a large tree along Highway H. This tree destroyed a section of a fence, cauing cattle to get loose along the highway.