Tornadoes · United States · Oklahoma · 1998

F2 tornado, Kinta, Oklahoma, June 8, 1998

This F2 tornado ran 0.5 miles across Haskell County on June 8, 1998, touching down at 9:55 PM CDT and reaching 50 yards wide. It killed nobody, and did $60,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mphthis tornado

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F2
Date
June 8, 1998
Touchdown
9:55 PM CDT (02:55 UTC)
Path length
0.5 miles (0.8 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$60,000
County
Haskell County
Touchdown point
35.080, -95.230
Lift-off point
35.080, -95.230
Record number
1030

What the Weather Service recorded

Summary of events for the evening of June 8 and the early morning of June 9 1998:A classic southern plains severe weather event shaped up on the afternoon and evening of June 8 as a number of isolated severe thunderstorms developed over central Oklahoma to the east of a dryline. The first severe thunderstorm to affect eastern Oklahoma scraped the northwestern part of Osage County, causing a report of a severe thunderstorm gust. This storm quickly died as it entered Kansas.A second more serious severe thunderstorm formed west of Oklahoma City and tracked all the way to the Arkansas state line south of Fort Smith, traversing Pittsburg, Haskell, and Le Flore Counties. This storm travelled east along an instability axis and a warm front. From a radar perspective, this storm was impressive in that it kept a classic, well-defined hook on its entire journey across southeast Oklahoma. From a human perspective, this storm was impressive in that it produced ten tornadoes in southeast Oklahoma, hail as large as golfballs, damaging thunderstorm winds, and torrential flooding rains.A third cluster of severe thunderstorms developed over Creek County and moved east across Okmulgee, Muskogee, Cherokee, and Adair Counties before weakening as it entered Arkansas. These storms slowed their movement across Muskogee County and regeneration along the southwest flank of the storms caused torrential rainfalls that dumped nearly three inches of rain in northern Muskogee, southern Cherokee, southern Adair, and northern Sequoyah Counties. In addition to flooding rains, these storms produced hail as large as nickels and damaging thunderstorm winds.

An F2 tornado destroyed one single family dwelling, while another single family dwelling received major damage.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

65 minutes of warning. NWS TSA issued a tornado warning for this county at 01:50 UTC, 65 minutes before the tornado touched down, in force until 03:00 UTC.

Issued (UTC)ExpiredProductOffice
01:50 UTC03:00 UTCTornado WarningTSA
02:29 UTC05:00 UTCFlash Flood WarningTSA
02:55 UTC04:00 UTCTornado WarningTSA

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 10:33 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Norman, OK (KOUN), 00:00Z

2.9 hours before the tornado, 198 km from the path. June 9, 1998.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 1998-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2377 joules per kilogram, CIN -72, lifted condensation level 1123 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Norman, OK at 00:00Z on 1998-06-09The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 270 square meters per square second, 0 to 6 km bulk shear 53 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
2377 J/kg
Mixed-layer CIN
-72 J/kg
Surface CAPE
1062 J/kg
Mixed-layer LCL
1123 m above ground
0-6 km bulk shear
53 kt
0-1 km bulk shear
28 kt
0-1 km storm-relative helicity
270 m²/s²
0-3 km storm-relative helicity
254 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.8
0-3 km lapse rate
4.4 K/km

Open this sounding in Storm Lab

Norman, OK (KOUN), 12:00Z

9.1 hours after it, 198 km from the path. June 9, 1998.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 1998-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 3414 joules per kilogram, CIN -111, lifted condensation level 702 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Norman, OK at 12:00Z on 1998-06-09The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 311 square meters per square second, 0 to 6 km bulk shear 44 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
3414 J/kg
Mixed-layer CIN
-111 J/kg
Surface CAPE
2068 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
44 kt
0-1 km bulk shear
36 kt
0-1 km storm-relative helicity
311 m²/s²
0-3 km storm-relative helicity
275 m²/s²
Significant tornado parameter
0.0
Supercell composite
23.9
0-3 km lapse rate
4.6 K/km

Open this sounding in Storm Lab

The radar

The Western Arkansas radar (KSRX), 82 km away, was scanning. The volume nearest the touchdown began at 02:55 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

This ground now

The live radar over the trackEvery 1998 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

The other tornadoes of June 8, 1998

24 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 811:00 AM PDTF0Elko, NV1.030
June 84:37 PM CDTF0Reno, KS0.260
June 84:42 PM CDTF0Sumner, KS1.0110
June 84:44 PM CDTF0Harvey, KS2.0110$150,000
June 84:47 PM CDTF0Ottawa, KS2.030
June 85:17 PM CDTF0Harvey, KS0.260
June 85:23 PM CDTF0Ottawa, KS0.530
June 85:26 PM CDTF0Cowley, KS0.260$500,000
June 85:30 PM CDTF0Phillips, KS0.530
June 84:45 PM MDTF0Cassia, ID0.230$4,000
June 86:35 PM CDTF0Chase, KS0.260$10,000
June 87:11 PM CDTF1Pottawatomie, OK3.550
June 87:35 PM CDTF2Seminole, OK8.0440
June 87:50 PM CDTF2Hughes, OK8.0590
June 88:28 PM CDTF0Pittsburg, OK9.0200
June 88:43 PM CDTF0Pittsburg, OK8.0200
June 88:55 PM CDTF0Pittsburg, OK2.0100
June 89:10 PM CDTF0Pittsburg, OK12.0200
June 89:31 PM CDTF0Pittsburg, OK0.530
June 89:40 PM CDTF1Pittsburg, OK1.050$30,000
June 89:41 PM CDTF0Haskell, OK4.0100
June 89:51 PM CDTF0Pittsburg, OK0.530
June 810:56 PM CDTF0LeFlore, OK0.530
June 812:01 AM CDTF0Sebastian, AR1.050

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.