Oklahoma

Storm History: Harper County, Oklahoma

577 episodes, 893 events since 1957

Every storm the National Weather Service has filed in Harper County, Oklahoma: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
893
Deaths
1
Injuries
16
Damage
$222 million
Episodes
577

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.

Open the live radar over Harper County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail29100$172,000
Tornado22208$1.4 million
Drought12204$173 million
Thunderstorm Wind7600$47,000
Heavy Snow2500$35,000
Flash Flood2503$1.3 million
Flood1900
Excessive Heat1900
High Wind1600$16 million
Winter Storm1600$105,000
Heat1400$10,000
Ice Storm1100$29 million
Wildfire1110$549,000
Winter Weather700
Cold/Wind Chill500
Blizzard401$400,000
Extreme Cold/Wind Chill400
Dense Fog200
Strong Wind100
Heavy Rain100
Funnel Cloud100
Frost/Freeze100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Harper County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Harper CountyEvery warning in Harper County since 1986Every county in Oklahoma

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.