Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 55, NWS Tulsa, OK

April 30, 2019Latimer County, LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 30, 2019, 11:44 PM CDT for Latimer County, LeFlore County, Oklahoma. It was in force for 46 min. 3 reports 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: Apr 30, 2019, 11:44 PM CDT (04:44 UTC)
Expired: May 1, 2019, 12:30 AM CDT
In force: 46 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Latimer County, OK, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 75 km from the middle of the area, began a volume at 04:45 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
Apr 30, 11:50 PM CDT	TSTM WND DMG	Summerfield, OK	TREES AND POWERLINES DOWN. RELAYED VIA NWSCHAT BY EMERGENCY MANAGER. TIME ESTIMATED VIA RADAR.
Apr 30, 11:51 PM CDT	TORNADO	3 W Summerfield, OK	NWS STORM SURVEY FOUND AN EF1 TORNADO FROM ABOUT 3 MILES WEST OF SUMMERFIELD TO 2 MILES EAST-NORTHEAST OF SUMMERFIELD. THE TORNADO UPROOTED NUMEROUS TREES AND DAMAGED OUTBUILDINGS.
May 1, 12:10 AM CDT	TSTM WND DMG	Howe, OK	PRELIM REPORTS OF WIND DAMAGE NEAR HOWE RELAYED VIA NWSCHAT BY EMERGENCY MANAGER. TIME ESTIMATED VIA RADAR.

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
Apr 30, 12:02 PM CDT	Tornado Watch	SPC	13 hr
Apr 30, 10:58 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.7 hours before the alert went out and 239 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: 65 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

273 
WUUS54 KTSA 010444
SVRTSA
OKC077-079-010530-
/O.NEW.KTSA.SV.W.0055.190501T0444Z-190501T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1144 PM CDT Tue Apr 30 2019

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Northeastern Latimer County in southeastern Oklahoma...
  Le Flore County in southeastern Oklahoma...

* Until 1230 AM CDT.

* At 1144 PM CDT, severe thunderstorms were located along a line
  extending from 4 miles east of Red Oak to 3 miles north of
  Whitesboro to 13 miles southeast of Albion, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations in or near the path include...
  Poteau...                         Heavener...
  Wister...                         Howe...
  Red Oak...                        Fanshawe...
  Octavia...                        Talimena State Park...
  Heavener Runestone State Park...  Big Cedar...
  Lake Wister State Park...         Whitesboro...
  Muse...                           Summerfield...
  Hodgen...                         Honobia...

A Tornado Watch remains in effect until 100 AM CDT for west central
Arkansas...and southeastern Oklahoma. A Tornado Watch also remains in
effect until 500 AM CDT for west central Arkansas...and southeastern
Oklahoma.

LAT...LON 3468 9494 3468 9498 3473 9497 3501 9510
      3512 9444 3451 9446 3451 9494
TIME...MOT...LOC 0444Z 264DEG 38KT 3496 9500 3474 9490 3451 9495 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Lacy

3 follow-up statements

343 
WWUS54 KTSA 010502
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1202 AM CDT Wed May 1 2019

OKC077-010512-
/O.CAN.KTSA.SV.W.0055.000000T0000Z-190501T0530Z/
Latimer OK-
1202 AM CDT Wed May 1 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LATIMER COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore the warning has been cancelled.

A Tornado Watch remains in effect until 100 AM CDT for west central
Arkansas...and southeastern Oklahoma. A Tornado Watch also remains in
effect until 500 AM CDT for west central Arkansas...and southeastern
Oklahoma.

LAT...LON 3465 9474 3473 9472 3482 9478 3498 9485
      3512 9444 3451 9446 3451 9479
TIME...MOT...LOC 0502Z 264DEG 38KT 3498 9479 3476 9469 3453 9474 

$$

OKC079-010530-
/O.CON.KTSA.SV.W.0055.000000T0000Z-190501T0530Z/
Le Flore OK-
1202 AM CDT Wed May 1 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR SOUTHEASTERN LE FLORE COUNTY...

At 1202 AM CDT, severe thunderstorms were located along a line
extending from 3 miles west of Wister to 7 miles northeast of Muse to
near Octavia, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations in or near the path include...
Poteau...                         Heavener...
Wister...                         Howe...
Octavia...                        Heavener Runestone State Park...
Lake Wister State Park...         Big Cedar...
Hodgen...                         

A Tornado Watch remains in effect until 100 AM CDT for west central
Arkansas...and southeastern Oklahoma. A Tornado Watch also remains in
effect until 500 AM CDT for west central Arkansas...and southeastern
Oklahoma.

LAT...LON 3465 9474 3473 9472 3482 9478 3498 9485
      3512 9444 3451 9446 3451 9479
TIME...MOT...LOC 0502Z 264DEG 38KT 3498 9479 3476 9469 3453 9474 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Lacy

462 
WWUS54 KTSA 010516
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1216 AM CDT Wed May 1 2019

OKC079-010530-
/O.CON.KTSA.SV.W.0055.000000T0000Z-190501T0530Z/
Le Flore OK-
1216 AM CDT Wed May 1 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR SOUTHEASTERN LE FLORE COUNTY...

At 1216 AM CDT, severe thunderstorms were located along a line
extending from 4 miles northeast of Heavener Runestone State Park to
7 miles northwest of Queen Wilhelmina State Park to 8 miles east of
Octavia, moving east at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations in or near the path include...
Heavener...                       Heavener Runestone State Park...

A Tornado Watch remains in effect until 100 AM CDT for southeastern
Oklahoma. A Tornado Watch also remains in effect until 500 AM CDT for
southeastern Oklahoma.

LAT...LON 3464 9456 3473 9456 3483 9460 3493 9465
      3493 9445 3451 9446 3451 9466
TIME...MOT...LOC 0516Z 264DEG 44KT 3492 9451 3477 9446 3455 9455 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

Lacy

885 
WWUS54 KTSA 010526
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1226 AM CDT Wed May 1 2019

OKC079-010536-
/O.EXP.KTSA.SV.W.0055.000000T0000Z-190501T0530Z/
Le Flore OK-
1226 AM CDT Wed May 1 2019

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LE FLORE COUNTY
WILL EXPIRE AT 1230 AM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.

A Tornado Watch remains in effect until 100 AM CDT for southeastern
Oklahoma. A Tornado Watch also remains in effect until 500 AM CDT for
southeastern Oklahoma.

LAT...LON 3464 9456 3473 9456 3483 9460 3493 9465
      3493 9445 3451 9446 3451 9466
TIME...MOT...LOC 0526Z 264DEG 38KT 3493 9441 3478 9436 3456 9445 

$$

Lacy

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:07 PM CDT	Areal Flood Advisory	TSA	Creek, Tulsa	3 hr
Apr 30, 7:45 PM CDT	Flash Flood Warning	TSA	Craig, Creek, Mayes, Okmulgee, Osage, Rogers and 3 more	6 hr
Apr 30, 8:48 PM CDT	Flash Flood Warning	TSA	Cherokee, Delaware, Mayes, Ottawa	6 hr
Apr 30, 8:57 PM CDT	Special Weather Statement	TSA	McIntosh, Muskogee	48 min
Apr 30, 9:01 PM CDT	Special Weather Statement	TSA	Cherokee	29 min
Apr 30, 9:14 PM CDT	Special Weather Statement	TSA	Delaware	31 min
Apr 30, 9:17 PM CDT	Special Weather Statement	TSA	Adair, Cherokee, Muskogee	28 min
Apr 30, 9:43 PM CDT	Areal Flood Warning	TSA	Craig, Nowata, Osage, Rogers, Washington	21 hr
Apr 30, 9:49 PM CDT	Tornado Warning	TSA	Pittsburg	41 min
Apr 30, 9:54 PM CDT	Special Weather Statement	TSA	Adair	51 min
Apr 30, 10:22 PM CDT	Tornado Warning	TSA	Pittsburg	23 min
Apr 30, 10:36 PM CDT	Tornado Warning	TSA	Pittsburg	24 min
Apr 30, 10:42 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg, Pushmataha	48 min
Apr 30, 10:47 PM CDT	Tornado Warning Tornado observed	TSA	Haskell, Latimer, Pittsburg	43 min
Apr 30, 11:18 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Sequoyah	42 min
Apr 30, 11:21 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pushmataha	39 min
Apr 30, 11:47 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	43 min
Apr 30, 11:53 PM CDT	Tornado Warning	TSA	LeFlore	24 min
May 1, 12:14 AM CDT	Areal Flood Warning	TSA	Craig, Delaware, Mayes, Ottawa	18 hr
May 1, 12:41 AM CDT	River Flood Warning	TSA	Ottawa	61 hr
May 1, 1:15 AM CDT	Areal Flood Advisory	TSA	Pittsburg	3 hr
May 1, 1:16 AM CDT	Areal Flood Warning	TSA	Delaware, Mayes, Ottawa	18 hr
May 1, 1:33 AM CDT	Special Weather Statement	TSA	Hughes	42 min
May 1, 1:37 AM CDT	Areal Flood Advisory	TSA	Choctaw, Latimer, LeFlore, Pittsburg, Pushmataha	3 hr
May 1, 2:36 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	24 min
May 1, 2:49 AM CDT	Special Weather Statement	TSA	Okfuskee	41 min
May 1, 2:54 AM CDT	River Flood Warning	TSA	Creek	17 hr
May 1, 3:05 AM CDT	Areal Flood Advisory	TSA	Haskell, McIntosh, Okfuskee, Okmulgee, Pittsburg	3 hr
May 1, 3:17 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	43 min
May 1, 3:47 AM CDT	Flash Flood Warning	TSA	McIntosh, Okfuskee, Okmulgee	6 hr
May 1, 3:54 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg	6 hr
May 1, 4:04 AM CDT	Special Weather Statement	TSA	Pittsburg	26 min
May 1, 4:20 AM CDT	Special Weather Statement	TSA	Haskell	25 min
May 1, 4:33 AM CDT	Special Weather Statement	TSA	Latimer, Pushmataha	42 min
May 1, 4:38 AM CDT	Special Weather Statement	TSA	LeFlore	52 min
May 1, 5:15 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	3 hr
May 1, 7:35 AM CDT	Areal Flood Warning	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Okfuskee and 3 more	9 hr
May 1, 8:50 AM CDT	River Flood Warning	TSA	Adair, Cherokee, Delaware	30 hr
May 1, 2:51 PM CDT	River Flood Warning	TSA	LeFlore	11 hr
May 1, 3:18 PM CDT	Flash Flood Watch	TSA	Adair, Cherokee, McIntosh, Muskogee, Okfuskee, Okmulgee and 1 more	13 hr
May 1, 6:52 PM CDT	Special Weather Statement	TSA	Pittsburg	38 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning 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.