Hail, Stephens
- When
- May 11, 9:25 PM CST
- Where
- Stephens County, 3.99 mi E of Comanche
- Measured
- 2 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.370, -97.900
Hail and Damaging Winds in Oklahoma, May 11 to 12, 2016
Severe storms formed overnight on the 11th into the 12th behind a front as an upper level trough moved through the area.
Where it happened
Every event with a place to put it. 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
- 1
- Property damage
- $102,000
- Crop damage
- None recorded
- Events
- 16
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 happened
The episode as NWS OUN wrote it up.
Severe storms formed overnight on the 11th into the 12th behind a front as an upper level trough moved through the area.
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 Norman, OK wrote its last area forecast discussion before the first event at May 11, 8:22 PM CST, 1 hour 3 minutes earlier.
Area forecast discussion, May 11, 8:22 PM CST, 1 hour 3 minutes before
Area Forecast Discussion National Weather Service Norman OK 922 PM CDT WED MAY 11 2016 .DISCUSSION... pops were increased a bit northward across central oklahoma where thunderstorms are expected tonight along and north of a surface cold front. these may produce large hail as they drift slowly south and east through the early morning. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 85 58 76 53 / 20 60 20 0 Hobart OK 82 58 77 53 / 10 60 40 0 Wichita Falls TX 87 60 77 56 / 40 80 50 10 Gage OK 77 53 77 52 / 10 30 10 0 Ponca City OK 80 55 77 53 / 20 20 10 0 Durant OK 85 65 76 57 / 30 80 50 10 && .OUN Watches/Warnings/Advisories... OK...None. TX...None. && 09/23
Hazardous weather outlook, May 11, 7:39 PM CST, 1 hour 46 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 839 PM CDT WED MAY 11 2016 OKZ004>048-050>052-TXZ083>090-130145- HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD- NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE- BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN- CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON- TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON- JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN- FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY- 839 PM CDT WED MAY 11 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...TONIGHT... .THUNDERSTORMS... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TONIGHT ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS. LOCATION... THE SLIGHT RISK AREA COVERS LOCATIONS SOUTH OF A LINE EXTENDING FROM CROWELL AND VERNON TEXAS...TO OKLAHOMA CITY AND CHANDLER IN OKLAHOMA. A MARGINAL RISK SURROUNDS THE SLIGHT RISK AREA AND EXTENDS FROM ELK CITY...TO EL RENO...AND STILLWATER IN OKLAHOMA. TIMING... THE MOST LIKELY TIME FOR SEVERE STORM DEVELOPMENT WILL BE AFTER 9 PM AND CONTINUE THROUGH 3 AM. IMPACTS... DAMAGING HAIL UP TO TENNIS BALL SIZE IN DIAMETER WILL BE POSSIBLE ALONG WITH DAMAGING WIND GUSTS BETWEEN 60 AND 70 MPH. LOCALLY HEAVY RAINFALL MAY ALSO LEAD TO FLASH FLOODING. THE TORNADO POTENTIAL IS VERY LOW. DISCUSSION... SHOWERS AND THUNDERSTORMS ARE EXPECTED TO RAPIDLY DEVELOP WITH APPROACH OF AN UPPER LEVEL WAVE THIS EVENING. THESE THUNDERSTORMS ARE EXPECTED TO DEVELOP IN THE VICINITY OF A COLD FRONT THAT IS LOCATED NEAR THE INTERSTATE-44 CORRIDOR. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE RISK AREAS SHOULD BE PREPARED FOR SEVERE WEATHER OPERATIONS THIS EVENING. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... .THUNDERSTORMS... ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL BEGIN FRIDAY NIGHT AND CONTINUE THROUGH THE WEEKEND AS ANOTHER UPPER LEVEL DISTURBANCE APPROACHES AND MOVES INTO THE REGION. A THIRD ROUND OF THUNDERSTORMS MAY DEVELOP EARLY NEXT WEEK... MONDAY INTO TUESDAY... AS A STRONGER SYSTEM APPROACHES THE REGION. ORGANIZED STORMS MAY FORM ON A FRONTAL BOUNDARY LEADING TO A CHANCE OF STRONG TO SEVERE STORMS. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. KURTZ/11/MAHALE
In the hours before
Special weather statement, May 11, 4:39 PM CST, 4 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORMAN OK 539 PM CDT WED MAY 11 2016 TXZ087-112330- KNOX TX- 539 PM CDT WED MAY 11 2016 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN KNOX COUNTY UNTIL 630 PM CDT... AT 538 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 8 MILES WEST OF O'BRIEN...MOVING NORTHEAST AT 35 MPH. HAZARDS INCLUDE... HAIL UP TO THE SIZE OF NICKELS... WIND GUSTS TO 40 MPH... LAT...LON 3340 9999 3349 9999 3359 9965 3340 9959 TIME...MOT...LOC 2238Z 241DEG 29KT 3337 10000 WR
Special weather statement, May 11, 9:10 PM CST, 15 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1010 PM CDT WED MAY 11 2016
OKZ039-120345-
STEPHENS OK-
1010 PM CDT WED MAY 11 2016
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN STEPHENS COUNTY UNTIL
1045 PM CDT...
AT 1009 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF
ADDINGTON...MOVING NORTHEAST AT 25 MPH.
HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.
&&
LAT...LON 3434 9809 3457 9776 3434 9757 3429 9786
3429 9799
TIME...MOT...LOC 0309Z 236DEG 23KT 3430 9796
WRThe radar
The Altus AFB radar (KFDR), 99 km away, was scanning. The volume nearest the first event began at 03:23 UTC.
Event by event
14 hail, 2 thunderstorm wind. Local standard time, as filed.
Hail, Stephens
- When
- May 11, 9:25 PM CST
- Where
- Stephens County, 2.28 mi E of Comanche
- Measured
- 1.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.370, -97.930
Hail, Stephens
- When
- May 11, 9:25 PM CST
- Where
- Stephens County, Comanche
- Measured
- 1 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.370, -97.970
Hail, Stephens
- When
- May 11, 9:33 PM CST
- Where
- Stephens County, 1.14 mi E of Sunray
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 34.420, -97.940
Hail, Stephens
- When
- May 11, 9:40 PM CST
- Where
- Stephens County, 5.01 mi ESE of Duncan
- Measured
- 1.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.470, -97.880
Hail, Jefferson
- When
- May 11, 9:45 PM CST
- Where
- Jefferson County, Addington
- Measured
- 1.5 in hail
- Reported by
- Storm Chaser
- Coordinates
- 34.240, -97.970
Hail, Pottawatomie
- When
- May 11, 11:45 PM CST
- Where
- Pottawatomie County, 1.32 mi ESE of Aydelotte
- Measured
- 1 in hail
- Reported by
- Broadcast Media
- Coordinates
- 35.430, -96.890
Hail, Greer
- When
- May 11, 11:50 PM CST
- Where
- Greer County, 2.76 mi N of Mangum
- Measured
- 1 in hail
- Reported by
- Law Enforcement
- Coordinates
- 34.920, -99.500
Hail, Greer
- When
- May 12, 12:02 AM CST
- Where
- Greer County, 2.07 mi S of Granite
- Measured
- 2.5 in hail
- Reported by
- Public
- Coordinates
- 34.930, -99.380
Hail, Kiowa
- When
- May 12, 12:31 AM CST
- Where
- Kiowa County, 2.15 mi SSE of Cold Springs
- Measured
- 2 in hail
- Property damage
- $2,000
- Reported by
- Amateur Radio
- Coordinates
- 34.770, -98.990
Windows were knocked out at the Tom Steed Reservoir bait shop.
Hail, Comanche
- When
- May 12, 1:10 AM CST
- Where
- Comanche County, 0.57 mi E of Cache
- Measured
- 1 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.630, -98.620
Hail, Comanche
- When
- May 12, 1:15 AM CST
- Where
- Comanche County, 0.57 mi E of Cache
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 34.630, -98.620
Hail, Comanche
- When
- May 12, 1:16 AM CST
- Where
- Comanche County, 2.76 mi N of Faxon
- Measured
- 1.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.500, -98.580
Thunderstorm Wind, Comanche
- When
- May 12, 1:32 AM CST
- Where
- Comanche County, Geronimo
- Measured
- 61 kt (70 mph) estimated gust
- Injuries
- 1 direct, 0 indirect
- Property damage
- $100,000
- Reported by
- Broadcast Media
- Coordinates
- 34.480, -98.380
Power lines and power poles were downed. Roof damage was also reported at the elementary school. One mobile home was partially destroyed and another was pushed off its foundation.
Hail, Comanche
- When
- May 12, 1:36 AM CST
- Where
- Comanche County, Geronimo
- Measured
- 2.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 34.480, -98.380
Thunderstorm Wind, Cotton
- When
- May 12, 1:40 AM CST
- Where
- Cotton County, 3.52 mi NE of Walters Arpt
- Measured
- 65 kt (75 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 34.400, -98.360
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Flash Flooding in Missouri, May 11 to 12, 2016
- Tornado and Flash Flooding in Illinois, May 11 to 12, 2016
- Flash Flooding and Hail in Oklahoma, May 11 to 12, 2016
- Hail and Damaging Winds in Illinois, May 11, 2016
- Flash Flooding and Hail in Kentucky, May 11, 2016
- Tornadoes and Flooding in Indiana, May 11 to 12, 2016
- Flood in Alaska, May 11 to 13, 2016
- Flash Flood in Kentucky, May 11, 2016
- Flash Flood and Hail in Texas, May 11, 2016
- Dense Fog in Illinois, May 11, 2016
- Flash Flood and Hail in Illinois, May 11, 2016
- Hail and Damaging Winds in Georgia, May 11, 2016
More
Every storm in Oklahoma in 2016Every state in 2016This day in weather historyWarnings in Oklahoma, May 2016
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: 628466, 628467, 628468, 628469, 628470, 628471, 628479, 628472, 628473, 628475, 628474, 628478, 628476, 628481, 628477, 628480.