Tornadoes · United States · Oklahoma · 2024

EF0 tornado, Ardmore, Oklahoma, April 27, 2024

Name: EF0 tornado, Ardmore, Oklahoma, April 27, 2024
Start: 2024-04-28T03:45:00.000Z
End: 2024-04-28T03:46:00.000Z
Location: Ardmore, Oklahoma

This EF0 tornado ran 0.5 miles across Carter County on April 27, 2024, touching down at 10:45 PM CDT and reaching 30 yards wide. It killed nobody.

The rating scale

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

EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
EF2111 to 135 mph
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.
EF3136 to 165 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
EF5over 200 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.
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: EF0
Date: April 27, 2024
Touchdown: 10:45 PM CDT (03:45 UTC)
Lifted: 10:46 PM CDT (03:46 UTC)
On the ground: 1 minutes
Path length: 0.5 miles (0.8 km)
Path width: 30 yards (27 m)
Deaths: 0
Injuries: 0
County: Carter County
Touchdown point: 34.212, -97.100
Lift-off point: 34.219, -97.097
Record number: 2404272145-01

The damage survey

157 damage points were recorded along this path by NWS OUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EFU. The highest wind the damage implies is 132 mph.

East side. Point needs to be moved west 200nm
3 broken poles multiple others leaning
Note frame of manufactured/mobile home.
Also tree, shed, RV damage

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

A widespread, long-duration and historic severe weather and tornado outbreak occurred from the late morning through late evening on the 27th. In all, 32 tornadoes affected portions of the WFO Norman Forecast Area, the third most in a single day during the period of reliable record. This included six significant (EF-2+) tornadoes and one violent (EF-4) tornado that struck Marietta (Love County). ||Synoptically, a slow-moving and deep mid/upper-level wave progressed across the Four Corners region during the day. At the surface, an area of low-pressure strengthened/deepened across southwest Kansas, with a trailing dryline extending near and just west of the 100th meridian through much of the day. As ascent overspread this feature, numerous (organized) severe thunderstorms developed across the WFO Norman Forecast Area, even by as early as daybreak/early morning hours. The boundary layer was characterized by strong instability and wind shear, favorable for an organized/supercell storm mode. Initial supercells across western Oklahoma produced a few reports of large hail and the first (brief) tornadoes of the event just after 10 AM. Supercell storm development continued across portions of the area, focusing along an axis from western-north Texas into north-central Oklahoma through much of the afternoon. The first significant (EF-2) tornado of the event impacted the eastern edge of Knox City (Knox County, Texas) just after 3 PM. Through the evening, a quasi-linear convective system (QLCS) organized and swept across much of southern/central Oklahoma and adjacent north Texas. Numerous mesovortex-type tornadoes developed and impacted the aforementioned areas. Ahead of the main convective line, strong warm air advection, driven by an increasing (45-60 knot) low-level jet, promoted the development of pre-frontal/line supercell thunderstorms. Multiple of these storms became strongly tornadic, producing multiple strong and long-tracking tornadoes. This included an EF-2 tornado impacting the western portions of Ardmore, an EF-3 tornado making a direct impact on the historic downtown district and adjacent neighborhoods in Sulphur, an EF-3 tornado traversing western portions of Hughes County, just west of Holdenville, and an EF-4 tornado destroying a Dollar Tree distribution center and nearby large retail stores on the western side of Marietta. The latter three tornadoes resulted in fatalities (1 in Sulphur, 2 near Holdenville and 1 in Marietta) along with additional injuries. ||Beyond severe weather outcomes, a significant flash flooding event occurred from the late evening of the 27th through mid-morning of the 28th. The corridor of highest rainfall, with observed 24-hour totals of 5-to-8 inches, occurred across portions of south-central into southeast Oklahoma, on the heels of a cluster of significant tornado impacts earlier in the evening. Additional flooding occurred across far northern Oklahoma (Kay County) during the evening of the 27th.

A brief tornado produced some light tree damage about 4 miles northeast of Ardmore.

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

The warnings

4 minutes of warning. NWS OUN issued a tornado warning for this county at 03:41 UTC, 4 minutes before the tornado touched down, in force until 04:15 UTC.

The county was under a tornado watch, issued at 00:50 UTC and running to 08:00 UTC.

Issued (UTC)	Expired	Product	Office
12:00 UTC	18:00 UTC	Flood Watch	OUN
13:11 UTC	02:34 UTC	Flood Advisory	OUN
00:50 UTC	08:00 UTC	Tornado Watch	OUN
01:45 UTC	02:30 UTC	Severe Thunderstorm Warning	OUN
01:54 UTC	02:45 UTC	Severe Thunderstorm Warning	OUN
02:15 UTC	02:40 UTC	Tornado Warning	OUN
02:21 UTC	03:00 UTC	Severe Thunderstorm Warning	OUN
02:44 UTC	03:13 UTC	Tornado Warning	OUN
02:54 UTC	03:45 UTC	Severe Thunderstorm Warning	OUN
03:14 UTC	08:15 UTC	Flood Advisory	OUN
03:18 UTC	04:00 UTC	Severe Thunderstorm Warning	OUN
03:41 UTC	04:15 UTC	Tornado Warning	OUN
03:45 UTC	07:45 UTC	Flash Flood Warning	OUN
03:54 UTC	04:45 UTC	Tornado Warning	OUN
04:00 UTC	04:45 UTC	Tornado Warning	OUN
04:18 UTC	05:00 UTC	Tornado Warning	OUN
04:38 UTC	05:15 UTC	Tornado Warning	OUN
04:43 UTC	05:15 UTC	Tornado Warning	OUN
05:13 UTC	05:24 UTC	Tornado Warning	OUN
05:46 UTC	06:30 UTC	Severe Thunderstorm Warning	OUN
05:51 UTC	11:45 UTC	Flood Warning	OUN
06:35 UTC	07:15 UTC	Severe Thunderstorm Warning	OUN
07:02 UTC	10:15 UTC	Flash Flood Warning	OUN
10:17 UTC	12:15 UTC	Flood Advisory	OUN

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 Moderate Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 01:02 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.

What forecasters said that day

The local office's own words before the tornado touched down, 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 tornado touched down at Apr 27, 6:55 PM CDT, 3 hours 50 minutes earlier.

Area forecast discussion, Apr 27, 6:55 PM CDT, 3 hours 50 minutes before

Area Forecast Discussion
National Weather Service Norman OK
Issued by National Weather Service Lubbock TX
655 PM CDT Sat Apr 27 2024

...New AVIATION...

.SHORT TERM...
(This evening through Sunday)
Issued at 112 PM CDT Sat Apr 27 2024

Dangerous convective environment in place today and into tonight.
Storms have already fired out west with severe and tornado
warnings already issued this morning. A special balloon sounding
issued by the NSSL near Weatherford shows a concerning profile
with 2500 J/kg SBCAPE, 0-1km SRH near 25 kts, effective shear of
60 knots all indicative of a volatile air mass in place. A PDS
Tornado Watch has already been issued for western Oklahoma and
western north Texas with the expectation this will likely be
expanded eastward within the next several hours. Guidance has
trended a bit slower with the forward progression of supercell
thunderstorms, and the latest indication is central Oklahoma
should be impacted by dangerous supercell thunderstorms capable of
producing strong to violent tornadoes within the 3 PM to 9 PM time
frame.

Complicating this is the high potential for very heavy rainfall
which will quickly lead to flash flooding issues where these
storms set up. The WPC has issued a high risk of flash flooding
for parts of east-central Oklahoma, though it should be stressed
that there is uncertainty with the placement of this. Central and
southern Oklahoma are at risk of dangerous flash flooding issues.

Repeated rounds of thunderstorms are expected, and the public
should not let their guard down after a storm has passed.
Many public events are occurring today and with people out of the
office/school, there is a high concern in our office of people
being out on the roads or away from shelters. We urge those who
can to remain near a shelter today as the environment resembles
that of previous historic tornadic outbreaks. Please heed
warnings!

Thompson

&&

.LONG TERM...
(Sunday night through next Friday)
Issued at 112 PM CDT Sat Apr 27 2024

Thunderstorms should exit our forecast area tomorrow morning.
ADditional forecast details will be given with later packages.

&&

.AVIATION...
(00Z TAFS)
Issued at 655 PM CDT Sat Apr 27 2024

Severe TS remain an imminent threat for SPS, LAW and PNC before
expanding over the remaining terminals along and east of the I35
corridor through the night. Besides very large hail and some
tornadoes, intense rainfall from training cells are likely at times
before storms become increasingly linear and sweep east to DUA after
midnight. Some MVFR or even IFR ceilings are likely in the wake of
this activity, but should clear out to VFR by mid/late morning. DUA
is likely to see a second bout of TS by the afternoon ahead of the
dryline and cold front.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  60  79  55  79 / 100  20   0  10
Hobart OK         56  80  51  81 /  70   0   0  10
Wichita Falls TX  59  81  56  83 / 100  10   0   0
Gage OK           50  77  46  81 /  10  10  10  10
Ponca City OK     60  79  49  77 / 100  40  10  10
Durant OK         63  77  61  82 /  90  90  10  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Sunday evening for OKZ004>008-010>013-
     015>020-022>032-035-037>048-050>052.

TX...Flood Watch through Sunday evening for TXZ086-089-090.

&&

SHORT TERM...01
LONG TERM....01
AVIATION...01

Hazardous weather outlook, Apr 27, 4:05 PM CDT, 6 hours 40 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
405 PM CDT Sat Apr 27 2024

OKZ004>048-050>052-TXZ083>090-282115-
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-
405 PM CDT Sat Apr 27 2024

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Through Tonight...

.Thunderstorms... There is a Slight to Enhanced risk for severe
thunderstorms across far western Oklahoma and adjacent western
north Texas to a Moderate risk across much of the remainder of our
Oklahoma and north Texas area including all of central into
southeast Oklahoma. Hazards with severe storms will include up to
baseball size hail, 60-80 mph downburst wind gusts, and a few
tornados possible. Most of our area will be in a Medium risk for
a few tornados. The severe risk timing across western Oklahoma
and western north Texas would be through midnight while the risk
timing across central through southeast Oklahoma will be through
the overnight hours.

.Heavy rainfall...
Heavy rainfall by slow moving storms and any storm training could
result in flash flood with the highest risk area overnight across
all of central through southeast Oklahoma.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

Storm spotter groups and emergency management personnel across all
counties served by the Norman office should prepare for severe
weather operations through the overnight hours.

.DAYS TWO THROUGH SEVEN...Sunday through Friday...

.Thunderstorms... Ongoing severe thunderstorms will likely be
winding down after sunrise across southeast Oklahoma. The risk for
severe thunderstorms returns Sunday afternoon generally along and
east of I-35 with the highest risk (slight) across southeast
Oklahoma. Up to quarter size hail and 60 mph wind gusts will be
the main severe risks with an additional low risk for tornados
across southeast Oklahoma.

Thunderstorms will be possible on Tuesday night and every day
through Friday across our area.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

In the hours before

Local storm report, Apr 27, 9:58 PM CDT, 47 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
958 PM CDT Sat Apr 27 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0957 PM     Tornado          2 WNW Ardmore           34.19N 97.17W
04/27/2024                   Carter             OK   Public

            Twitter Photo as tornado moved through
            Ardmore.

&&

AZ

Local storm report, Apr 27, 9:59 PM CDT, 46 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
959 PM CDT Sat Apr 27 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0935 PM     Tstm Wnd Gst     2 NW Norman             35.24N 97.46W
04/27/2024  M59 MPH          Cleveland          OK   Mesonet

&&

JH

Local storm report, Apr 27, 10:15 PM CDT, 30 minutes before

Preliminary Local Storm Report
National Weather Service Norman OK
1015 PM CDT Sat Apr 27 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0928 PM     Tornado          2 WNW Norman            35.23N 97.48W
04/27/2024                   Cleveland          OK   Broadcast Media

            Notable damage at Homeland; strong radar
            signature matches at this time; additional
            damage around Norman.

&&

JH

Special weather statement, Apr 27, 10:17 PM CDT, 28 minutes before

Special Weather Statement
National Weather Service Norman OK
1017 PM CDT Sat Apr 27 2024

OKZ044-TXZ086-088>090-280345-
Cotton OK-Clay TX-Wichita TX-Archer TX-Baylor TX-
1017 PM CDT Sat Apr 27 2024

...Strong thunderstorms will impact portions of southeastern Cotton,
Clay, Archer, southeastern Wichita and southeastern Baylor Counties
through 1045 PM CDT...

At 1017 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles southwest of Waurika to near Megargel.
Movement was east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Wichita Falls, Henrietta, Archer City, Holliday, Petrolia, Scotland,
Byers, Dean, Windthorst, Bellevue, Megargel, Jolly, Westover,
Bluegrove, Lake Arrowhead, Sheppard AFB, Lake Kickapoo, Newport,
Lakeside City, and Pleasant Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3340 9923 3415 9837 3412 9809 3407 9812
      3405 9809 3404 9808 3404 9810 3400 9809
      3399 9801 3401 9798 3399 9795 3394 9797
      3393 9795 3390 9798 3347 9798 3347 9842
      3340 9842
TIME...MOT...LOC 0317Z 264DEG 12KT 3415 9806 3343 9894

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Bunker

Special weather statement, Apr 27, 10:43 PM CDT, 2 minutes before

Special Weather Statement
National Weather Service Norman OK
1043 PM CDT Sat Apr 27 2024

OKZ028-039>041-045-046-280445-
Stephens OK-Carter OK-Garvin OK-McClain OK-Murray OK-Jefferson OK-
1043 PM CDT Sat Apr 27 2024

...Strong thunderstorms will impact portions of Jefferson, Garvin,
eastern Stephens, western Carter, northwestern Murray and south
central McClain Counties through 1145 PM CDT...

At 1043 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles southwest of Byars to 6 miles southeast
of Byers. Movement was south at 10 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Pauls Valley, Waurika, Healdton, Wynnewood, Maysville, Ringling,
Ryan, Elmore City, Velma, Paoli, Terral, Katie, Foster, Tatums, Loco,
Ratliff City, Addington, Sugden, Graham, and Grady.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3388 9797 3390 9798 3393 9795 3394 9797
      3399 9795 3401 9797 3400 9807 3408 9812
      3413 9809 3415 9811 3415 9814 3418 9814
      3492 9739 3482 9698 3398 9763 3399 9768
      3392 9778 3386 9783 3385 9787
TIME...MOT...LOC 0343Z 002DEG 8KT 3479 9711 3402 9808

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Bunker

Special weather statement, Apr 27, 10:44 PM CDT, 1 minute before

Special Weather Statement
National Weather Service Norman OK
1044 PM CDT Sat Apr 27 2024

OKZ008-013-020-280445-
Payne OK-Kay OK-Noble OK-
1044 PM CDT Sat Apr 27 2024

...A strong thunderstorm will impact portions of southeastern Kay,
eastern Noble and northwestern Payne Counties through 1145 PM CDT...

At 1044 PM CDT, Doppler radar was tracking a strong thunderstorm 4
miles west of Morrison, moving north at 35 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Stillwater, Morrison, Glencoe, Lake Mcmurtry, Sooner Lake, Lake Carl
Blackwell, and Ingalls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor NOAA Weather
Radio, local radio stations or available television stations for
additional information and possible warnings from the National
Weather Service.

&&

LAT...LON 3660 9704 3659 9706 3658 9700 3660 9691
      3658 9689 3655 9690 3653 9699 3651 9701
      3651 9703 3633 9703 3633 9692 3625 9692
      3624 9682 3616 9682 3616 9679 3603 9683
      3615 9726 3669 9706
TIME...MOT...LOC 0344Z 200DEG 30KT 3630 9709

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

Bunker

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

3.8 hours before the tornado, 115 km from the path. April 28, 2024.

Skew-T log-p

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.

Hodograph

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: 2161 J/kg
Mixed-layer CIN: -47 J/kg
Surface CAPE: 2396 J/kg
Mixed-layer LCL: 788 m above ground
0-6 km bulk shear: 59 kt
0-1 km bulk shear: 43 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 456 m²/s²
Significant tornado parameter: 6.0
Supercell composite: 20.0
0-3 km lapse rate: 5.6 K/km

Open this sounding in Storm Lab

Norman, OK (KOUN), 12:00Z

8.2 hours after it, 115 km from the path. April 28, 2024.

Skew-T log-p

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.

Hodograph

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: 0 J/kg
Surface CAPE: 3 J/kg
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 74 kt
0-1 km bulk shear: 18 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0
0-3 km lapse rate: 4.5 K/km

Open this sounding in Storm Lab

The surface observations

Ardmore Downtown Exec Airport (1F0), 8 km from the path, in the two hours either side.

Time (UTC)	Temp (°F)	Dew point (°F)	Wind	Gust (kt)	Pressure (mb)	Weather
01:55 UTC	73.8	68.5	140° 12 kt		1005.4
02:15 UTC	73.4	68.7	130° 11 kt	16	1005.1
02:35 UTC	72.5	69	140° 14 kt		1004.7	+RA
02:55 UTC	72.5	69.3	200° 12 kt	25	1004.4	-RA
03:15 UTC	72.5	69.4	150° 20 kt	27	1003.4	-RA
03:35 UTC	72.7	69.6	150° 22 kt	29	1003.4	RA
03:55 UTC	73	69.8	200° 11 kt	19	1005.4	-RA BR
04:15 UTC	72.7	69.6	200° 6 kt		1005.4	-RA BR
04:35 UTC	71	69.4	230° 7 kt		1006.1	RA BR
04:55 UTC	70.7	69.4	250° 3 kt		1006.8	+RA BR
05:15 UTC	63.7	62.2	270° 5 kt		1007.1	RA BR

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Norman radar (KTLX), 125 km away, was scanning. The volume nearest the touchdown began at 03:46 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)	Report	Where	County	Remark
02:10 UTC	HAIL 3	Fox	Carter, OK	Corrects previous hail report from Fox for time to be radar estimate. NWSChat Report.
02:42 UTC	HAIL 3	Fox	Carter, OK	NWSChat Report.
02:57 UTC	TORNADO	2 Wnw Ardmore	Carter, OK	Twitter Photo as tornado moved through Ardmore.
03:24 UTC	TORNADO	Sulphur	Murray, OK	Noticeable TDS as tornado moved through town. Widespread damage reported across Sulphur.
04:10 UTC	TORNADO	Marietta	Love, OK	Extensive damage to buildings and trees reported in Marietta.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the track Every 2024 tornado in Oklahoma Every tornado in Oklahoma since 1950 Warnings in force in Oklahoma now The forecast where you are

The other tornadoes of April 27, 2024

62 more were confirmed in the United States that day.

Date	Time	Rating	Where	Path (mi)	Width (yd)	Deaths	Injuries	Damage
April 27	10:11 AM CDT	EF1	Roger Mills, OK	0.7	50			$5,000
April 27	10:18 AM CDT	EF0	Roger Mills, OK	0.1	10
April 27	1:21 PM CDT	EF1	Garfield, OK	0.8	100			$5,000
April 27	2:05 PM CDT	Unrated	Brown, KS	3.9	25
April 27	2:15 PM CDT	Unrated	Doniphan, KS	0.0	1
April 27	2:31 PM CDT	EF0	Nemaha, KS	1.0	20
April 27	2:39 PM CDT	EF1	Kay, OK	2.6	30			$20,000
April 27	2:45 PM CDT	EF0	Nemaha, KS	0.6	75
April 27	2:54 PM CDT	EF1	Kay, OK	1.0	75			$75,000
April 27	3:06 PM CDT	EF2	Knox, TX	12.3	1,000			$100,000
April 27	3:20 PM CDT	EF0	Payne, OK	5.2	30			$10,000
April 27	3:28 PM CDT	EF2	Cowley, KS	1.3	100
April 27	3:36 PM CDT	EF1	Cowley, KS	0.6	20
April 27	4:08 PM CDT	EF1	Baylor, TX	12.7	300			$100,000
April 27	4:10 PM CDT	EF0	Caddo, OK	0.8	20
April 27	4:12 PM CDT	EF1	Gentry, MO	11.6	250
April 27	4:29 PM CDT	EF1	Canadian, OK	6.8	150			$100,000
April 27	4:30 PM CDT	EF1	Elk, KS	0.0	50
April 27	3:35 PM MDT	EF0	Hamilton, KS	0.1	10
April 27	4:39 PM CDT	EF1	Elk, KS	0.5	40
April 27	4:42 PM CDT	Unrated	Elk, KS	0.0	15
April 27	4:54 PM CDT	Unrated	Elk, KS	0.0	30
April 27	4:58 PM CDT	EF0	Grundy, MO	4.0	75
April 27	5:15 PM CDT	Unrated	Baylor, TX	0.6	20
April 27	5:35 PM CDT	Unrated	Wilson, KS	0.0	10
April 27	5:56 PM CDT	Unrated	Wilson, KS	0.0	10
April 27	6:11 PM CDT	EF0	Chautauqua, KS	0.0	20
April 27	6:11 PM CDT	EF0	Chautauqua, KS	0.0	10
April 27	6:23 PM CDT	EF0	Wichita, TX	1.5	30
April 27	6:37 PM CDT	Unrated	Linn, MO	0.1	5
April 27	6:43 PM CDT	EF1	Wichita, TX to OK	6.5	100			$32,000
April 27	7:45 PM CDT	Unrated	Montgomery, KS	0.0	20
April 27	7:55 PM CDT	Unrated	Comanche, OK	0.3	20
April 27	8:16 PM CDT	Unrated	Osage, OK	0.1	75
April 27	8:23 PM CDT	EF1	Bates, MO	2.5	150
April 27	8:30 PM CDT	EF1	Bates, MO	10.1	250
April 27	8:45 PM CDT	EF0	Henry, MO	2.4	150
April 27	8:53 PM CDT	EF1	McClain, OK	4.4	225			$44,000
April 27	9:12 PM CDT	EF1	McClain, OK	0.5	40			$2,000
April 27	9:16 PM CDT	EF1	Johnston, OK	4.7	150			$50,000
April 27	9:17 PM CDT	EF0	McClain, OK	1.7	40			$2,000
April 27	9:20 PM CDT	EF2	McClain, OK	4.9	125			$200,000
April 27	9:29 PM CDT	EF1	Cleveland, OK	3.5	200			$100,000
April 27	9:42 PM CDT	EF2	Carter, OK	11.3	400		19	$20 million
April 27	9:45 PM CDT	EF1	Oklahoma, OK	8.5	150			$300,000
April 27	9:50 PM CDT	Unrated	Wilson, KS	0.0	10
April 27	10:15 PM CDT	EF1	Pontotoc, OK	1.5	30			$10,000
April 27	10:16 PM CDT	EF1	Lincoln, OK	10.3	250			$30,000
April 27	10:23 PM CDT	EF3	Sulphur tornado, OK	9.9	440	1	30	$10 million
April 27	10:29 PM CDT	EF0	Morgan, MO	3.5	50
April 27	10:36 PM CDT	EF3	Holdenville tornado, OK	27.9	1,760	2	4	$1.8 million
April 27	10:37 PM CDT	EF1	Pontotoc, OK	8.4	500			$250,000
April 27	10:59 PM CDT	EF1	Moniteau, MO	1.7	30			$200,000
April 27	11:07 PM CDT	EF1	Murray, OK	5.9	250			$200,000
April 27	11:08 PM CDT	EF4	Marietta–Dickson–Baum tornado, OK	26.8	900	1	6	$151 million
April 27	11:21 PM CDT	EF1	Murray, OK	3.5	100			$2,000
April 27	12:01 AM CDT	EF1	Okmulgee, OK	11.3	1,400			$2.0 million
April 27	12:14 AM CDT	EF1	Okmulgee, OK	8.9	1,100			$75,000
April 27	12:22 AM CDT	Unrated	Johnston, OK	1.1	200
April 27	12:28 AM CDT	EF1	Muskogee, OK	6.2	800

All 63 of them

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.