Alert archive / Oklahoma / Tornado Warnings in 2020

Tornado Warning 12, NWS Tulsa, OK

January 10, 2020Haskell County, LeFlore County, Sequoyah County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Jan 10, 2020, 3:40 PM CST for Haskell County, LeFlore County, Sequoyah County, Oklahoma. It was in force for 34 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jan 10, 2020, 3:40 PM CST (21:40 UTC)
Expired: Jan 10, 2020, 4:14 PM CST
In force: 34 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Haskell County, OK, LeFlore County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 52 km from the middle of the area, began a volume at 21:44 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.

What was reported inside it

Time	Report	Where	Remark
Jan 10, 4:09 PM CST	TSTM WND GST 70	Sallisaw, OK	SPOTTER REPORT OF THUNDERSTORM WINDS GUSTING TO NEAR 70 MPH. ALSO REPORTED POWER POLES AND TREES DOWN IN TOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jan 10, 10:42 AM CST	Tornado Watch	SPC	10 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 205 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: 619 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted.

527 
WFUS54 KTSA 102140
TORTSA
OKC061-079-135-102230-
/O.NEW.KTSA.TO.W.0012.200110T2140Z-200110T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
340 PM CST Fri Jan 10 2020

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northeastern Haskell County in southeastern Oklahoma...
  South central Sequoyah County in east central Oklahoma...
  North central Le Flore County in southeastern Oklahoma...

* Until 430 PM CST.
    
* At 340 PM CST, a severe thunderstorm capable of producing a tornado
  was located over Stigler, moving northeast at 40 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 in or near the path include...
  Sallisaw...                       Stigler...
  Keota...                          Gans...
  Tamaha...                         Cowlington...
  Kanima...                         

This includes Interstate 40 in Oklahoma between mile markers 302 and
316.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3519 9511 3529 9516 3555 9473 3529 9458
TIME...MOT...LOC 2140Z 245DEG 37KT 3526 9509 

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

$$

3 follow-up statements

104 
WWUS54 KTSA 102151
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
351 PM CST Fri Jan 10 2020

OKC061-079-135-102230-
/O.CON.KTSA.TO.W.0012.000000T0000Z-200110T2230Z/
Haskell OK-Sequoyah OK-Le Flore OK-
351 PM CST Fri Jan 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CST FOR
NORTHEASTERN HASKELL...SOUTH CENTRAL SEQUOYAH AND NORTH CENTRAL LE
FLORE COUNTIES...
    
At 351 PM CST, a severe thunderstorm capable of producing a tornado
was located 4 miles northwest of Keota, moving northeast at 45 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 in or near the path include...
Sallisaw...                       Keota...
Gans...                           Cowlington...

This includes Interstate 40 in Oklahoma between mile markers 303 and
316.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3522 9496 3534 9503 3555 9473 3529 9458
TIME...MOT...LOC 2151Z 245DEG 37KT 3531 9496 

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

$$

118 
WWUS54 KTSA 102204
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
404 PM CST Fri Jan 10 2020

OKC061-079-102214-
/O.CAN.KTSA.TO.W.0012.000000T0000Z-200110T2230Z/
Haskell OK-Le Flore OK-
404 PM CST Fri Jan 10 2020

...THE TORNADO WARNING FOR NORTHEASTERN HASKELL AND NORTH CENTRAL LE
FLORE COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area, and therefore the warning has been cancelled.

A Tornado Watch remains in effect until 600 PM CST for east central
Oklahoma.

LAT...LON 3541 9484 3545 9487 3555 9473 3543 9466
TIME...MOT...LOC 2204Z 230DEG 51KT 3547 9478 

$$

OKC135-102230-
/O.CON.KTSA.TO.W.0012.000000T0000Z-200110T2230Z/
Sequoyah OK-
404 PM CST Fri Jan 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CST FOR CENTRAL
SEQUOYAH COUNTY...
    
At 404 PM CST, a severe thunderstorm capable of producing a tornado
was located over Sallisaw, moving northeast at 60 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 in or near the path include...
Sallisaw...                       

This includes Interstate 40 in Oklahoma between mile markers 303 and
311.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement 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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3541 9484 3545 9487 3555 9473 3543 9466
TIME...MOT...LOC 2204Z 230DEG 51KT 3547 9478 

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

$$

215 
WWUS54 KTSA 102214
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
414 PM CST Fri Jan 10 2020

OKC135-102224-
/O.CAN.KTSA.TO.W.0012.000000T0000Z-200110T2230Z/
Sequoyah OK-
414 PM CST Fri Jan 10 2020

...THE TORNADO WARNING FOR CENTRAL SEQUOYAH COUNTY IS CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled. However, gusty winds and 
heavy rain are still possible with this thunderstorm.

A Tornado Watch remains in effect until 600 PM CST for east central
Oklahoma.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tulsa.

LAT...LON 3541 9484 3545 9487 3555 9473 3543 9466
TIME...MOT...LOC 2213Z 245DEG 37KT 3551 9466 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 10:42 AM CST	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	25 min
Jan 10, 10:58 AM CST	Special Weather Statement	TSA	Osage, Pawnee	47 min
Jan 10, 11:15 AM CST	Special Weather Statement	TSA	Osage	30 min
Jan 10, 11:27 AM CST	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Wagoner	48 min
Jan 10, 11:32 AM CST	Special Weather Statement	TSA	Tulsa	28 min
Jan 10, 11:34 AM CST	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Wagoner	41 min
Jan 10, 11:35 AM CST	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Washington	25 min
Jan 10, 11:39 AM CST	Special Weather Statement	TSA	Ottawa	36 min
Jan 10, 11:46 AM CST	Special Weather Statement	TSA	Okmulgee	44 min
Jan 10, 11:54 AM CST	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa	51 min
Jan 10, 12:09 PM CST	Special Weather Statement	TSA	Nowata, Washington	51 min
Jan 10, 12:38 PM CST	Special Weather Statement	TSA	Muskogee, Wagoner	37 min
Jan 10, 12:43 PM CST	Special Weather Statement	TSA	McIntosh, Pittsburg	47 min
Jan 10, 12:54 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Wagoner	51 min
Jan 10, 1:03 PM CST	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	42 min
Jan 10, 1:04 PM CST	Tornado Warning	TSA	Cherokee, Muskogee, Wagoner	41 min
Jan 10, 1:11 PM CST	Tornado Warning	TSA	McIntosh, Pittsburg	36 min
Jan 10, 1:14 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	27 min
Jan 10, 1:22 PM CST	Tornado Warning	TSA	Craig, Nowata	16 min
Jan 10, 1:31 PM CST	Tornado Warning	TSA	Cherokee, Delaware, Mayes	44 min
Jan 10, 1:37 PM CST	Tornado Warning	TSA	McIntosh, Muskogee, Pittsburg	38 min
Jan 10, 1:59 PM CST	Special Weather Statement	TSA	Pittsburg	46 min
Jan 10, 2:06 PM CST	Tornado Warning	TSA	McIntosh, Muskogee	39 min
Jan 10, 2:09 PM CST	Tornado Warning	TSA	Delaware	9 min
Jan 10, 2:29 PM CST	Severe Thunderstorm Warning	TSA	Latimer, McIntosh, Pittsburg	46 min
Jan 10, 2:34 PM CST	Severe Thunderstorm Warning	TSA	Pittsburg	41 min
Jan 10, 2:36 PM CST	Tornado Warning	TSA	Adair, Cherokee, Muskogee	39 min
Jan 10, 2:51 PM CST	Tornado Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	39 min
Jan 10, 3:05 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Pittsburg	40 min
Jan 10, 3:12 PM CST	Tornado Warning	TSA	Adair, Cherokee, Delaware	28 min
Jan 10, 3:13 PM CST	Areal Flood Advisory	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	3 hr
Jan 10, 3:21 PM CST	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Pittsburg and 1 more	39 min
Jan 10, 3:49 PM CST	Severe Thunderstorm Warning	TSA	Adair	41 min
Jan 10, 3:50 PM CST	Areal Flood Advisory	TSA	Adair, Cherokee, Delaware, Sequoyah	3 hr
Jan 10, 3:55 PM CST	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, LeFlore, Sequoyah	50 min
Jan 10, 3:58 PM CST	Areal Flood Advisory	TSA	McIntosh, Pittsburg	3 hr
Jan 10, 4:02 PM CST	Winter Weather Advisory	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more	23 hr
Jan 10, 4:24 PM CST	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	51 min
Jan 10, 4:34 PM CST	Winter Storm Watch	TSA	Pawnee, Washington	4 hr
Jan 10, 4:53 PM CST	Flash Flood Warning	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	6 hr
Jan 10, 5:16 PM CST	Special Weather Statement	TSA	Pittsburg	44 min
Jan 10, 5:47 PM CST	Special Weather Statement	TSA	Haskell, Latimer	43 min

Nearby

Tornado Warnings in Oklahoma, 2020 Every tornado warning in 2020 Tornadoes in 2020

Sources

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