Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 20, NWS Norman, OK

May 3, 2021Atoka County, Oklahoma

NWS Norman, OK issued this tornado warning at May 3, 2021, 8:57 PM CDT for Atoka County, Oklahoma. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 3, 2021, 8:57 PM CDT (01:57 UTC)
Expired: May 3, 2021, 9:30 PM CDT
In force: 33 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Atoka County, OK

The radar

The Western Arkansas radar (KSRX), 157 km from the middle of the area, began a volume at 02:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 3, 3:48 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.0 hours before the alert went out and 232 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

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.

Mixed-layer CAPE: 3299 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1213 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 143 m²/s²
Significant tornado parameter: 2.6
Supercell composite: 13.9

Open this sounding in Storm Lab

The text

As transmitted.

423 
WFUS54 KOUN 040157
TOROUN
OKC005-040230-
/O.NEW.KOUN.TO.W.0020.210504T0157Z-210504T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
857 PM CDT Mon May 3 2021

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Northeastern Atoka County in southeastern Oklahoma...

* Until 930 PM CDT.
    
* At 857 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 6 miles southwest of Daisy, moving north at 20 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Daisy, Redden and northeastern McGee Creek Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3451 9567 3451 9578 3436 9578 3435 9581
      3445 9594 3459 9583 3459 9567
TIME...MOT...LOC 0157Z 202DEG 18KT 3446 9581 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Mahale

2 follow-up statements

796 
WWUS54 KOUN 040207
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
907 PM CDT Mon May 3 2021

OKC005-040230-
/O.CON.KOUN.TO.W.0020.000000T0000Z-210504T0230Z/
Atoka OK-
907 PM CDT Mon May 3 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR
NORTHEASTERN ATOKA COUNTY...
    
At 906 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southwest of Daisy, moving northeast at 15 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Daisy and Redden. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3451 9567 3451 9578 3441 9578 3446 9588
      3459 9581 3459 9567
TIME...MOT...LOC 0206Z 211DEG 14KT 3448 9578 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Mahale

604 
WWUS54 KOUN 040223
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
923 PM CDT Mon May 3 2021

OKC005-040233-
/O.EXP.KOUN.TO.W.0020.000000T0000Z-210504T0230Z/
Atoka OK-
923 PM CDT Mon May 3 2021

...THE TORNADO WARNING FOR NORTHEASTERN ATOKA COUNTY WILL EXPIRE AT
930 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However heavy rain is still possible with this
thunderstorm.

LAT...LON 3451 9567 3451 9578 3441 9578 3446 9588
      3459 9581 3459 9567
TIME...MOT...LOC 0223Z 202DEG 18KT 3455 9574 

$$

Mahale

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 7:02 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Hughes	43 min
May 3, 7:07 PM CDT	Tornado Warning	OUN	Coal	26 min
May 3, 7:13 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray, Pontotoc	47 min
May 3, 7:22 PM CDT	Areal Flood Advisory	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc, Seminole	3 hr
May 3, 7:23 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	37 min
May 3, 7:32 PM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Pontotoc	43 min
May 3, 7:41 PM CDT	Flash Flood Warning	OUN	Coal, Pontotoc	3 hr
May 3, 7:52 PM CDT	Special Weather Statement	OUN	Seminole	23 min
May 3, 7:55 PM CDT	Special Weather Statement	OUN	Pontotoc	35 min
May 3, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	46 min
May 3, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	39 min
May 3, 8:07 PM CDT	Tornado Warning	OUN	Atoka	8 min
May 3, 8:14 PM CDT	Special Weather Statement	OUN	Pottawatomie	46 min
May 3, 8:26 PM CDT	Special Weather Statement	OUN	Marshall	34 min
May 3, 8:33 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	42 min
May 3, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Bryan, Johnston, Marshall	39 min
May 3, 8:39 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	51 min
May 3, 8:46 PM CDT	Special Weather Statement	OUN	Atoka	29 min
May 3, 8:48 PM CDT	Special Weather Statement	OUN	Coal	27 min
May 3, 8:55 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	50 min
May 3, 8:56 PM CDT	Flash Flood Warning	OUN	Atoka, Coal	3 hr
May 3, 9:03 PM CDT	Areal Flood Advisory	OUN	Pottawatomie	3 hr
May 3, 9:09 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	51 min
May 3, 9:24 PM CDT	Special Weather Statement	OUN	Garvin	36 min
May 3, 9:30 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	45 min
May 3, 9:32 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc, Pottawatomie	43 min
May 3, 9:44 PM CDT	Special Weather Statement	OUN	Hughes	31 min
May 3, 10:04 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln	41 min
May 3, 10:32 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	43 min
May 3, 10:36 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	54 min
May 3, 11:09 PM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	31 min
May 3, 11:15 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	45 min
May 3, 11:34 PM CDT	Special Weather Statement	OUN	Cleveland	26 min
May 3, 11:53 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	52 min
May 3, 11:56 PM CDT	Special Weather Statement	OUN	Jefferson, Stephens	64 min
May 4, 12:12 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Stephens	48 min
May 4, 12:18 AM CDT	Special Weather Statement	OUN	Payne	42 min
May 4, 12:28 AM CDT	Severe Thunderstorm Warning	OUN	Cotton, Jefferson	47 min
May 4, 12:40 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	50 min
May 4, 12:43 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Jefferson, Love	29 min
May 4, 12:49 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	41 min
May 4, 1:05 AM CDT	Special Weather Statement	OUN	Love	40 min
May 4, 1:20 AM CDT	Special Weather Statement	OUN	Cleveland	25 min
May 4, 1:23 AM CDT	Severe Thunderstorm Warning	OUN	Johnston, Murray, Pontotoc	52 min
May 4, 1:55 AM CDT	Severe Thunderstorm Warning	OUN	Coal, Johnston, Pontotoc	50 min
May 4, 2:00 AM CDT	Special Weather Statement	OUN	Hughes	45 min
May 4, 2:31 AM CDT	Special Weather Statement	OUN	Coal	29 min
May 4, 1:47 PM CDT	River Flood Advisory	OUN	Atoka	19 hr

Nearby

Tornado Warnings in Oklahoma, 2021 Every tornado warning in 2021 Tornadoes in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.