Alert archive / Oklahoma / Tornado Warnings in 2019

Tornado Warning 41, NWS Tulsa, OK

May 18, 2019LeFlore County, Oklahoma; Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 18, 2019, 1:38 PM CDT for LeFlore County, Oklahoma; Sebastian County, Arkansas. It was in force for 30 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: May 18, 2019, 1:38 PM CDT (18:38 UTC)
Expired: May 18, 2019, 2:08 PM CDT
In force: 30 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 21 km from the middle of the area, began a volume at 18:41 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
May 18, 2:00 PM CDT	TSTM WND GST 78	Pocola, OK	EMERGENCY MANAGEMENT REPORTED 78 MPH WINDS WHICH WERE RECORDED AT POCOLA RACE TRACK.

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
May 18, 9:10 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 6.6 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: 717 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 969 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 345 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

972 
WFUS54 KTSA 181838
TORTSA
ARC131-OKC079-181930-
/O.NEW.KTSA.TO.W.0041.190518T1838Z-190518T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
138 PM CDT Sat May 18 2019

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  West central Sebastian County in west central Arkansas...
  Northeastern Le Flore County in southeastern Oklahoma...

* Until 230 PM CDT.
    
* At 138 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Cameron, moving northeast at 45 mph.

  HAZARD...Tornado.

  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...
  Pocola...                         Hackett...
  Bonanza...                        Cameron...
  Rock Island...                    Jenson...

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.

&&

LAT...LON 3508 9460 3513 9464 3531 9444 3517 9432
TIME...MOT...LOC 1838Z 234DEG 39KT 3513 9458 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

2 follow-up statements

116 
WWUS54 KTSA 181845
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
145 PM CDT Sat May 18 2019

ARC131-OKC079-181930-
/O.CON.KTSA.TO.W.0041.000000T0000Z-190518T1930Z/
Sebastian AR-Le Flore OK-
145 PM CDT Sat May 18 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR WEST
CENTRAL SEBASTIAN AND EASTERN LE FLORE COUNTIES...
    
At 145 PM CDT, a severe thunderstorm capable of producing a tornado
was located 3 miles northeast of Cameron, moving northeast at 45 mph.

HAZARD...Tornado.

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...
Pocola...                         Hackett...
Bonanza...                        Rock Island...
Jenson...                         

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.

&&

LAT...LON 3511 9451 3519 9457 3531 9444 3517 9432
TIME...MOT...LOC 1845Z 234DEG 39KT 3518 9450 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

836 
WWUS54 KTSA 181908
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
208 PM CDT Sat May 18 2019

ARC131-OKC079-181917-
/O.CAN.KTSA.TO.W.0041.000000T0000Z-190518T1930Z/
Sebastian AR-Le Flore OK-
208 PM CDT Sat May 18 2019

...THE TORNADO WARNING FOR WEST CENTRAL SEBASTIAN AND EASTERN LE
FLORE COUNTIES IS CANCELLED...
    
LAT...LON 3511 9451 3519 9457 3531 9444 3517 9432
TIME...MOT...LOC 1905Z 234DEG 39KT 3533 9426 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 8:41 AM CDT	Special Weather Statement	TSA	Tulsa	34 min
May 18, 8:58 AM CDT	Special Weather Statement	TSA	Tulsa	32 min
May 18, 9:26 AM CDT	Special Weather Statement	TSA	Creek, Pawnee	64 min
May 18, 10:02 AM CDT	Special Weather Statement	TSA	Okfuskee	58 min
May 18, 10:14 AM CDT	Special Weather Statement	TSA	Osage	61 min
May 18, 10:18 AM CDT	Severe Thunderstorm Warning	TSA	Osage	42 min
May 18, 10:22 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	53 min
May 18, 10:26 AM CDT	Special Weather Statement	TSA	Craig	34 min
May 18, 10:47 AM CDT	Special Weather Statement	TSA	McIntosh, Okmulgee, Rogers, Tulsa, Wagoner	58 min
May 18, 11:00 AM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Wagoner	60 min
May 18, 11:06 AM CDT	Tornado Warning	TSA	Rogers, Tulsa, Wagoner	39 min
May 18, 11:14 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee, Tulsa, Wagoner	61 min
May 18, 11:22 AM CDT	Special Weather Statement	TSA	Nowata, Washington	38 min
May 18, 11:27 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, McIntosh, Pittsburg, Pushmataha	48 min
May 18, 11:33 AM CDT	Tornado Warning	TSA	Rogers	27 min
May 18, 11:43 AM CDT	Tornado Warning	TSA	Mayes, Rogers, Wagoner	47 min
May 18, 11:46 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Craig, Mayes, Nowata, Rogers, Wagoner	59 min
May 18, 11:56 AM CDT	Tornado Warning	TSA	Cherokee, Wagoner	49 min
May 18, 11:58 AM CDT	Tornado Warning	TSA	Craig, Mayes, Rogers	47 min
May 18, 11:58 AM CDT	Tornado Warning	TSA	Latimer, Pittsburg	17 min
May 18, 12:05 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, McIntosh, Muskogee, Sequoyah	55 min
May 18, 12:10 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg, Pushmataha	50 min
May 18, 12:30 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Craig, Delaware, Mayes, Ottawa	45 min
May 18, 12:35 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw	25 min
May 18, 12:40 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	50 min
May 18, 12:45 PM CDT	Tornado Warning	TSA	Haskell	15 min
May 18, 12:55 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, McIntosh, Muskogee, Sequoyah	50 min
May 18, 12:57 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 3 more	48 min
May 18, 1:07 PM CDT	Tornado Warning	TSA	Haskell	17 min
May 18, 1:08 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Ottawa	67 min
May 18, 1:11 PM CDT	Tornado Warning	TSA	LeFlore	34 min
May 18, 1:21 PM CDT	Tornado Warning	TSA	Haskell, LeFlore	24 min
May 18, 1:34 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, Latimer, LeFlore, Pushmataha and 1 more	41 min
May 18, 4:54 PM CDT	Special Weather Statement	TSA	Choctaw, Pushmataha	36 min
May 18, 6:04 PM CDT	Special Weather Statement	TSA	Choctaw	26 min
May 18, 1:54 PM CDT	Tornado Warning	TSA	Crawford, Sebastian	36 min
May 18, 2:02 PM CDT	Tornado Warning	TSA	Sebastian	28 min
May 18, 2:04 PM CDT	Tornado Warning	TSA	Sebastian	19 min
May 18, 2:08 PM CDT	Tornado Warning	TSA	Crawford, Franklin, Madison, Washington	37 min
May 18, 2:11 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Sebastian, Washington	64 min
May 18, 2:13 PM CDT	Tornado Warning	TSA	Franklin, Sebastian	32 min
May 18, 2:15 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison, Washington	60 min
May 18, 2:23 PM CDT	Tornado Warning	TSA	Crawford, Franklin	23 min
May 18, 2:40 PM CDT	Tornado Warning	TSA	Franklin, Madison	35 min
May 18, 2:49 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	42 min

Nearby

Tornado Warnings in Oklahoma, 2019 Tornado Warnings in Arkansas, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.