Alert archive / Oklahoma / Tornado Warnings in 2017

Tornado Warning 28, NWS Tulsa, OK

May 18, 2017McIntosh County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 18, 2017, 10:00 PM CDT for McIntosh County, Oklahoma. It was in force for 30 min. 10 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: May 18, 2017, 10:00 PM CDT (03:00 UTC)
Expired: May 18, 2017, 10:30 PM CDT
In force: 30 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 97 km from the middle of the area, began a volume at 03:02 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, 10:00 PM CDT	TORNADO	4 N Hanna, OK	A TORNADO DESTROYED A LARGE OUTBUILDING...DAMAGED A HOME...BLEW DOWN A METAL HIGH-VOLTAGE TRUSS TOWER...SNAPPED OR UPROOTED NUMEROUS TREES...AND SNAPPED WOODEN POWER POLES. BASED ON THIS DAMAGE...THE TORNADO WAS RATED EF-2.
May 18, 10:09 PM CDT	TSTM WND DMG	Hanna, OK	POWER LINES DOWN.
May 18, 10:10 PM CDT	TSTM WND DMG	6 Nne Eufaula, OK	HIGH VOLTAGE TRANSMISSION LINES DOWN ON OLD HIGHWAY 69 SOUTH OF CHECOTAH, MAKING ROADWAY IMPASSABLE.
May 18, 10:10 PM CDT	TSTM WND DMG	Stidham, OK	MCINTOSH COUNTY EM REPORTING AT LEAST ONE HOME DESTROYED.
May 18, 10:12 PM CDT	TORNADO	1 S Stidham, OK	A TORNADO DESTROYED A MOBILE HOME...DAMAGED THE ROOFS OF SEVERAL OTHER HOMES...DESTROYED OUTBUILDINGS...SNAPPED OR UPROOTED NUMEROUS TREES...AND BLEW DOWN POWER POLES. BASED ON THIS DAMAGE...THE TORNADO WAS RATED EF-1.
May 18, 10:15 PM CDT	TSTM WND GST 66	4 Wnw Eufaula, OK
May 18, 10:15 PM CDT	TORNADO	2 Ene Stidham, OK	A TORNADO DESTROYED AN OUTBUILDING...DAMAGED A HOME...SNAPPED OR UPROOTED NUMEROUS TREES...AND BLEW DOWN POWER POLES. BASED ON THIS DAMAGE...THE TORNADO WAS RATED EF-1.
May 18, 10:20 PM CDT	TSTM WND DMG	Checotah, OK	POWER POLES DOWN.
May 18, 10:20 PM CDT	TSTM WND DMG	Checotah, OK	A STORAGE TANK AND BARN WERE DAMAGED IN THE CHECOTAH AREA, ALONG WITH DOWNED POWER LINES.
May 18, 10:25 PM CDT	TORNADO	2 E Checotah, OK	A TORNADO DESTROYED A LARGE OUTBUILDING...DAMAGED HOMES...SNAPPED OR UPROOTED NUMEROUS TREES...AND BLEW DOWN POWER POLES. BASED ON THIS DAMAGE...THE TORNADO WAS RATED EF-1.

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, 6:02 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.0 hours before the alert went out and 244 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: 2055 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1439 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

272 
WFUS54 KTSA 190300
TORTSA
OKC091-190330-
/O.NEW.KTSA.TO.W.0028.170519T0300Z-170519T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1000 PM CDT THU MAY 18 2017

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  McIntosh County in southeastern Oklahoma...

* Until 1030 PM CDT
    
* At 1000 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 4 miles north of Hanna, moving northeast at 60
  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...
  Eufaula...                        Checotah...
  Hanna...                          Rentiesville...
  Stidham...                        Lake Eufaula State Park...
  Raiford...                        Vivian...
  Pierce...                         Vernon...
  Onapa...                          

This includes Interstate 40 in Oklahoma between mile markers 254 and
273.
 
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 3538 9588 3555 9548 3555 9537 3532 9535
      3531 9537 3533 9540 3529 9546 3530 9550
      3527 9552 3519 9579 3519 9587 3517 9588
      3515 9594 3523 9598 3534 9598
TIME...MOT...LOC 0300Z 246DEG 52KT 3527 9589 

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

$$

69

2 follow-up statements

390 
WWUS54 KTSA 190305
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1005 PM CDT THU MAY 18 2017

OKC091-190330-
/O.CON.KTSA.TO.W.0028.000000T0000Z-170519T0330Z/
McIntosh OK-
1005 PM CDT THU MAY 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR MCINTOSH
COUNTY...
    
At 1005 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Raiford, moving northeast at 60 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...
Eufaula...                        Checotah...
Rentiesville...                   Stidham...
Lake Eufaula State Park...        Raiford...
Vivian...                         Pierce...
Onapa...                          

This includes Interstate 40 in Oklahoma between mile markers 254 and
273.
 
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 3555 9548 3555 9537 3532 9535 3531 9537
      3533 9540 3529 9546 3530 9550 3527 9552
      3519 9579 3528 9588 3536 9592 3538 9588
TIME...MOT...LOC 0305Z 246DEG 52KT 3530 9581 

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

$$

69

622 
WWUS54 KTSA 190319
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1019 PM CDT THU MAY 18 2017

OKC091-190330-
/O.CON.KTSA.TO.W.0028.000000T0000Z-170519T0330Z/
McIntosh OK-
1019 PM CDT THU MAY 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN MCINTOSH COUNTY...
    
At 1019 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lake Eufaula State Park, 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...
Checotah...                       Rentiesville...
Lake Eufaula State Park...        Onapa...

This includes Interstate 40 in Oklahoma between mile markers 256 and
273.
 
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 3555 9548 3555 9537 3535 9535 3530 9550
      3533 9564 3547 9567
TIME...MOT...LOC 0319Z 243DEG 54KT 3541 9557 

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

$$

69

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 7:17 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	43 min
May 18, 7:43 PM CDT	Special Weather Statement	TSA	Osage	32 min
May 18, 8:00 PM CDT	Special Weather Statement	TSA	Creek, Tulsa	45 min
May 18, 8:06 PM CDT	Special Weather Statement	TSA	Okfuskee	24 min
May 18, 8:10 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Rogers, Tulsa	35 min
May 18, 8:33 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	42 min
May 18, 8:42 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Rogers, Tulsa, Wagoner, Washington	48 min
May 18, 9:05 PM CDT	Areal Flood Advisory	TSA	Creek, Okfuskee, Okmulgee, Tulsa	115 min
May 18, 9:06 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Osage, Pawnee, Tulsa, Wagoner	24 min
May 18, 9:12 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	48 min
May 18, 9:26 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Osage, Rogers, Tulsa, Wagoner and 1 more	49 min
May 18, 9:35 PM CDT	Special Weather Statement	TSA	Craig, Nowata	25 min
May 18, 9:40 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	65 min
May 18, 9:48 PM CDT	Tornado Warning	TSA	Pittsburg	42 min
May 18, 9:54 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	36 min
May 18, 10:18 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Latimer, McIntosh, Muskogee, Pittsburg and 1 more	57 min
May 18, 10:22 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Okmulgee, Rogers, Tulsa and 1 more	38 min
May 18, 10:23 PM CDT	Tornado Warning	TSA	Muskogee, Wagoner	37 min
May 18, 10:28 PM CDT	Tornado Warning	TSA	Cherokee, McIntosh, Muskogee, Sequoyah	47 min
May 18, 10:37 PM CDT	Tornado Warning	TSA	Cherokee, Mayes, Muskogee, Wagoner	38 min
May 18, 10:42 PM CDT	Areal Flood Advisory	TSA	Rogers	3 hr
May 18, 10:57 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Haskell, LeFlore, Mayes and 3 more	48 min
May 18, 11:00 PM CDT	Tornado Warning	TSA	Adair, Cherokee	45 min
May 18, 11:01 PM CDT	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Wagoner	44 min
May 18, 11:12 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa, Rogers	48 min
May 18, 11:12 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	48 min
May 18, 11:31 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware, Sequoyah	59 min
May 18, 11:32 PM CDT	Tornado Warning	TSA	Delaware	43 min
May 18, 11:34 PM CDT	Tornado Warning	TSA	Adair, Delaware	41 min
May 18, 11:42 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	48 min
May 18, 11:48 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	42 min
May 18, 11:58 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pittsburg, Pushmataha	62 min
May 19, 2:16 AM CDT	Special Weather Statement	TSA	Pawnee	44 min
May 19, 3:26 AM CDT	Special Weather Statement	TSA	Tulsa	34 min
May 19, 3:58 AM CDT	Special Weather Statement	TSA	Tulsa	32 min
May 19, 8:46 AM CDT	River Flood Warning	TSA	Osage	23 hr
May 19, 8:46 AM CDT	River Flood Warning	TSA	Osage, Tulsa	62 hr
May 19, 8:46 AM CDT	River Flood Warning	TSA	Tulsa	71 hr
May 19, 8:46 AM CDT	River Flood Warning	TSA	Creek	38 hr
May 19, 8:56 AM CDT	River Flood Warning	TSA	Washington	71 hr
May 19, 8:56 AM CDT	River Flood Warning	TSA	Rogers, Tulsa	4 days
May 19, 8:56 AM CDT	River Flood Warning	TSA	Ottawa	5 days
May 19, 10:57 AM CDT	Special Weather Statement	TSA	Tulsa	33 min
May 19, 11:07 AM CDT	Special Weather Statement	TSA	Osage	23 min
May 19, 1:18 PM CDT	Special Weather Statement	TSA	Muskogee	27 min
May 19, 1:47 PM CDT	Special Weather Statement	TSA	Cherokee, Delaware, Mayes	43 min
May 19, 2:10 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes	26 min
May 19, 2:21 PM CDT	River Flood Advisory	TSA	Cherokee	3 days
May 19, 2:34 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	41 min
May 19, 3:46 PM CDT	Special Weather Statement	TSA	Adair	29 min
May 19, 4:03 PM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	27 min
May 19, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	42 min
May 19, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	48 min
May 19, 5:01 PM CDT	Special Weather Statement	TSA	Wagoner	29 min
May 19, 5:15 PM CDT	Special Weather Statement	TSA	Mayes, Okmulgee, Wagoner	30 min
May 19, 5:16 PM CDT	Areal Flood Advisory	TSA	Creek, Mayes, Muskogee, Okfuskee, Okmulgee, Rogers and 2 more	119 min
May 19, 5:20 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Mayes	2 min
May 19, 5:24 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Mayes	51 min
May 19, 6:04 PM CDT	Flash Flood Warning	TSA	Creek, Okfuskee, Okmulgee	8 hr
May 19, 6:15 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Ottawa, Wagoner	60 min
May 19, 6:19 PM CDT	Special Weather Statement	TSA	Okfuskee	26 min
May 19, 6:28 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	62 min

Nearby

Tornado Warnings in Oklahoma, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.