Storm Events Database

Event Details

Event Hail
Magnitude 1.00 in.
State OKLAHOMA
County/Area MCCLAIN
WFO OUN
Report Source NWS Employee
NCDC Data Source CSV
Begin Date 2010-05-10 16:15:00.0 CST-6
Begin Location 1NE BLANCHARD
Begin Lat/Lon 35.15/-97.65
End Date 2010-05-10 16:15:00.0 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage 0.00K
Crop Damage 0.00K
Episode Narrative A significant outbreak of severe thunderstorms and tornadoes affected a large part of northern, central, and southern Oklahoma. Tornadoes were most numerous across central and southern Oklahoma, with significant damage occurring over many areas. Severe thunderstorms erupted by mid afternoon across northern and western Oklahoma. Given the potent combination of ingredients in place, storms began to produce tornadoes quickly after initiation. Storm motions of 50 to 60 mph were common.
During the mid afternoon hours, severe weather was confined to northern Oklahoma. It was there a long track supercell storm produced tornadoes near the Kansas border - including one rated EF3 - from near Wakita to north of Braman.
The capping inversion that had delayed thunderstorm development into central Oklahoma weakened, allowing for explosive supercell development along the dry line along and west of the Interstate 35 corridor. Rapid development and intensification was common with the late afternoon storms, with storms becoming tornadic within a very short time after initiation. This round of storms would directly impact a large part of the Oklahoma City metro area at rush hour, and posed a significant threat to the area. The first tornado in this area occurred in Canadian County.
During the next several hours, tornadoes were clustered around the metro area, and at times there were multiple significant damaging tornadoes occurring simultaneously. Several of the tornadoes had long tracks. Damage from the tornadoes was substantial, with numerous structures, vehicles, trees and power poles/lines significantly damaged or destroyed. One of the more intense tornadoes moved across Lake Thunderbird east of Norman destroying numerous boats.
More storms developed across southwest and south central Oklahoma, and also quickly became tornadic.
By 9 pm, 35 tornadoes had been reported. While the loss of three lives was tragic, the casualties could have been much higher given the storm's fast motions, their intensity, the time of day and the areas impacted.
While exact monetary damage figures were not available, it is estimated that losses were in excess of $595 million. At least 450 sustained injuries, most of them minor. Unfortunately three people lost their lives.
Note: The large number of injuries and tornadoes made it difficult to associate injuries with specific tornadoes. Injury numbers were included when we had confidence in the numbers.
Note: The complex nature of storm evolutions and interactions made the job of classifying tornadoes difficult. This represents our best scientific assessment based on ground and aerial surveys, data from multiple radars, photographic and video evidence and anecdotal information.
Event Narrative


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 3 117 2.630M 0.00K
ALVA WOODS CO. OK 05/10/2010 13:45 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
LAMBERT ALFALFA CO. OK 05/10/2010 14:03 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
CHEROKEE ALFALFA CO. OK 05/10/2010 14:10 CST-6 Hail 4.25 in. 0 0 0.00K 0.00K
MANCHESTER GRANT CO. OK 05/10/2010 14:25 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
WAKITA GRANT CO. OK 05/10/2010 14:30 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
NASH GRANT CO. OK 05/10/2010 14:33 CST-6 Tornado EF0 0 0 0.00K 0.00K
WAKITA GRANT CO. OK 05/10/2010 14:38 CST-6 Tornado EF3 0 1 0.00K 0.00K
WAUKOMIS GARFIELD CO. OK 05/10/2010 14:57 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
RENFROW GRANT CO. OK 05/10/2010 15:00 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
WARR ACRES OKLAHOMA CO. OK 05/10/2010 15:00 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
(END)VANCE AFB ENID GARFIELD CO. OK 05/10/2010 15:02 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
FAIRMONT GARFIELD CO. OK 05/10/2010 15:03 CST-6 Hail 1.25 in. 0 0 0.00K 0.00K
MEDFORD GRANT CO. OK 05/10/2010 15:03 CST-6 Tornado EF0 0 0 0.00K 0.00K
WAUKOMIS GARFIELD CO. OK 05/10/2010 15:08 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
FAIRMONT GARFIELD CO. OK 05/10/2010 15:10 CST-6 Hail 2.00 in. 0 0 0.00K 0.00K
BILLINGS NOBLE CO. OK 05/10/2010 15:15 CST-6 Hail 4.75 in. 0 0 0.00K 0.00K
RENFROW GRANT CO. OK 05/10/2010 15:15 CST-6 Tornado EF1 0 0 0.00K 0.00K
BRAMAN KAY CO. OK 05/10/2010 15:17 CST-6 Tornado EF1 0 0 0.00K 0.00K
GARBER GARFIELD CO. OK 05/10/2010 15:17 CST-6 Hail 2.50 in. 0 0 0.00K 0.00K
BRAMAN KAY CO. OK 05/10/2010 15:19 CST-6 Tornado EF3 0 1 0.00K 0.00K
NARDIN KAY CO. OK 05/10/2010 15:21 CST-6 Tornado EF0 0 0 0.00K 0.00K
BRAMAN KAY CO. OK 05/10/2010 15:22 CST-6 Tornado EF1 0 0 0.00K 0.00K
BILLINGS NOBLE CO. OK 05/10/2010 15:30 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
MINCO GRADY CO. OK 05/10/2010 15:39 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MINCO GRADY CO. OK 05/10/2010 15:39 CST-6 Hail 1.50 in. 0 0 0.00K 0.00K
UNION CITY CANADIAN CO. OK 05/10/2010 15:40 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
CASHION KINGFISHER CO. OK 05/10/2010 15:46 CST-6 Tornado EF0 0 0 0.00K 0.00K
PIEDMONT CANADIAN CO. OK 05/10/2010 15:46 CST-6 Tornado EF0 0 0 0.00K 0.00K
UNION CITY CANADIAN CO. OK 05/10/2010 15:46 CST-6 Tornado EF0 0 0 0.00K 0.00K
RED ROCK NOBLE CO. OK 05/10/2010 15:53 CST-6 Tornado EF0 0 0 0.00K 0.00K
NAVINA LOGAN CO. OK 05/10/2010 15:54 CST-6 Tornado EF0 0 0 0.00K 0.00K
WHITE EAGLE KAY CO. OK 05/10/2010 15:55 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MARLAND NOBLE CO. OK 05/10/2010 16:00 CST-6 Tornado EF1 0 0 0.00K 0.00K
MARLAND NOBLE CO. OK 05/10/2010 16:02 CST-6 Tornado EF1 0 0 0.00K 0.00K
CORUM STEPHENS CO. OK 05/10/2010 16:03 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
RED ROCK NOBLE CO. OK 05/10/2010 16:03 CST-6 Thunderstorm Wind 70 kts. EG 0 0 0.00K 0.00K
HASTINGS JEFFERSON CO. OK 05/10/2010 16:05 CST-6 Tornado EF1 0 0 0.00K 0.00K
COMANCHE STEPHENS CO. OK 05/10/2010 16:06 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
TABLER GRADY CO. OK 05/10/2010 16:07 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
THE VILLAGE OKLAHOMA CO. OK 05/10/2010 16:13 CST-6 Tornado EF0 0 0 0.00K 0.00K
BLANCHARD MCCLAIN CO. OK 05/10/2010 16:15 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
DEL CITY OKLAHOMA CO. OK 05/10/2010 16:15 CST-6 Hail 4.00 in. 0 0 0.00K 0.00K
LAKE CARL BLACKWELL DAM PAYNE CO. OK 05/10/2010 16:15 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
MOORE CLEVELAND CO. OK 05/10/2010 16:16 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
(OUN)NORMAN WESTHEIMER ARPT CLEVELAND CO. OK 05/10/2010 16:20 CST-6 Tornado EF3 0 20 0.00K 0.00K
(OUN)NORMAN WESTHEIMER ARPT CLEVELAND CO. OK 05/10/2010 16:20 CST-6 Thunderstorm Wind 55 kts. MG 0 0 0.00K 0.00K
BRAY STEPHENS CO. OK 05/10/2010 16:20 CST-6 Tornado EF1 0 0 0.00K 0.00K
LAKE CARL BLACKWELL DAM PAYNE CO. OK 05/10/2010 16:20 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
COX CITY GRADY CO. OK 05/10/2010 16:22 CST-6 Tornado EF1 0 0 0.00K 0.00K
MOORE CLEVELAND CO. OK 05/10/2010 16:22 CST-6 Tornado EF1 0 0 0.00K 0.00K
MOORE CLEVELAND CO. OK 05/10/2010 16:23 CST-6 Hail 2.13 in. 0 0 0.00K 0.00K
MOORE CLEVELAND CO. OK 05/10/2010 16:25 CST-6 Hail 4.60 in. 0 0 0.00K 0.00K
STANLEY DRAPER LAKE DAM CLEVELAND CO. OK 05/10/2010 16:27 CST-6 Tornado EF1 0 0 0.00K 0.00K
(SWO)STILLWATER AIRPORT PAYNE CO. OK 05/10/2010 16:29 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
CHOCTAW OKLAHOMA CO. OK 05/10/2010 16:30 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
MOORE CLEVELAND CO. OK 05/10/2010 16:30 CST-6 Hail 2.75 in. 0 0 0.00K 0.00K
NORMAN CLEVELAND CO. OK 05/10/2010 16:32 CST-6 Thunderstorm Wind 56 kts. MG 0 0 0.00K 0.00K
NORMAN CLEVELAND CO. OK 05/10/2010 16:32 CST-6 Tornado EF4 1 32 0.00K 0.00K
RYAN JEFFERSON CO. OK 05/10/2010 16:32 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
NORMAN CLEVELAND CO. OK 05/10/2010 16:34 CST-6 Tornado EF1 0 0 0.00K 0.00K
(TIK)TINKER AFB OKLAHOMA CO. OK 05/10/2010 16:35 CST-6 Tornado EF4 2 29 0.00K 0.00K
PAYNE MCCLAIN CO. OK 05/10/2010 16:36 CST-6 Tornado EF1 0 0 0.00K 0.00K
PAYNE MCCLAIN CO. OK 05/10/2010 16:37 CST-6 Tornado EF0 0 0 0.00K 0.00K
SLAUGHTERVILLE CLEVELAND CO. OK 05/10/2010 16:39 CST-6 Tornado EF2 0 3 0.00K 0.00K
CORNISH JEFFERSON CO. OK 05/10/2010 16:44 CST-6 Tornado EF0 0 0 0.00K 0.00K
DALE POTTAWATOMIE CO. OK 05/10/2010 16:48 CST-6 Tornado EF3 0 3 0.00K 0.00K
LOCO STEPHENS CO. OK 05/10/2010 16:50 CST-6 Tornado EF0 0 0 0.00K 0.00K
PINK POTTAWATOMIE CO. OK 05/10/2010 16:50 CST-6 Tornado EF1 0 0 0.00K 0.00K
PINK POTTAWATOMIE CO. OK 05/10/2010 16:51 CST-6 Tornado EF1 0 0 0.00K 0.00K
TECUMSEH POTTAWATOMIE CO. OK 05/10/2010 16:56 CST-6 Tornado EF3 0 2 0.00K 0.00K
GRADY JEFFERSON CO. OK 05/10/2010 17:00 CST-6 Hail 2.00 in. 0 0 0.00K 0.00K
HEALDTON CARTER CO. OK 05/10/2010 17:04 CST-6 Tornado EF2 0 0 0.00K 0.00K
SEMINOLE SEMINOLE CO. OK 05/10/2010 17:11 CST-6 Tornado EF3 0 26 0.00K 0.00K
DICKSON CARTER CO. OK 05/10/2010 17:20 CST-6 Hail 1.75 in. 0 0 0.00K 0.00K
LONE GROVE CARTER CO. OK 05/10/2010 17:22 CST-6 Tornado EF3 0 0 0.00K 0.00K
LONE GROVE CARTER CO. OK 05/10/2010 17:25 CST-6 Tornado EF0 0 0 0.00K 0.00K
NORMAN CLEVELAND CO. OK 05/10/2010 17:25 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
DAVIS MURRAY CO. OK 05/10/2010 17:30 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MARIETTA LOVE CO. OK 05/10/2010 17:30 CST-6 Hail 4.25 in. 0 0 0.00K 0.00K
LAKE MURRAY DAM LOVE CO. OK 05/10/2010 17:40 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MEEKER LINCOLN CO. OK 05/10/2010 17:50 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
LEXINGTON CLEVELAND CO. OK 05/10/2010 17:52 CST-6 Tornado EF0 0 0 0.00K 0.00K
MARIETTA LOVE CO. OK 05/10/2010 17:54 CST-6 Tornado EF1 0 0 0.00K 0.00K
WANETTE POTTAWATOMIE CO. OK 05/10/2010 18:01 CST-6 Thunderstorm Wind 60 kts. EG 0 0 0.00K 0.00K
LEBANON MARSHALL CO. OK 05/10/2010 18:08 CST-6 Tornado EF0 0 0 0.00K 0.00K
WILLIS MARSHALL CO. OK 05/10/2010 18:15 CST-6 Tornado EF0 0 0 0.00K 0.00K
MAUD POTTAWATOMIE CO. OK 05/10/2010 18:20 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
ADA PONTOTOC CO. OK 05/10/2010 18:25 CST-6 Thunderstorm Wind 65 kts. MG 0 0 0.00K 0.00K
ADA PONTOTOC CO. OK 05/10/2010 18:32 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
TURNER FALLS MURRAY CO. OK 05/10/2010 18:50 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
MILL CREEK JOHNSTON CO. OK 05/10/2010 19:05 CST-6 Tornado EF0 0 0 0.00K 0.00K
FITTSTOWN PONTOTOC CO. OK 05/10/2010 19:15 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
COLEMAN JOHNSTON CO. OK 05/10/2010 19:42 CST-6 Tornado EF2 0 0 2.630M 0.00K
BOGGY DEPOT STATE PARK ATOKA CO. OK 05/10/2010 19:45 CST-6 Tornado EF1 0 0 0.00K 0.00K
MARIETTA LOVE CO. OK 05/10/2010 19:57 CST-6 Hail 1.00 in. 0 0 0.00K 0.00K
COLBERT BRYAN CO. OK 05/10/2010 20:11 CST-6 Thunderstorm Wind 52 kts. EG 0 0 0.00K 0.00K
Totals: 3 117 2.630M 0.00K