Alert archive / Oklahoma / Tornado Warnings in 2017

Tornado Warning 35, NWS Tulsa, OK

May 18, 2017Adair County, Delaware County, Oklahoma; Benton County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 18, 2017, 11:34 PM CDT for Adair County, Delaware County, Oklahoma; Benton County, Arkansas. It was in force for 41 min. 8 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, 11:34 PM CDT (04:34 UTC)
Expired: May 19, 2017, 12:15 AM CDT
In force: 41 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Benton County, AR, Adair County, OK, Delaware County, OK

The radar

The Tulsa radar (KINX), 102 km from the middle of the area, began a volume at 04:38 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, 11:44 PM CDT	TSTM WND GST 60	5 W Siloam Springs, OK	50 TO 60 MPH ESTIMATE.
May 18, 11:45 PM CDT	TSTM WND DMG	Siloam Springs, AR	TREE LIMBS DOWN ON WEST SIDE OF SILOAM SPRINGS.
May 19, 12:07 AM CDT	TORNADO	4 Sw Bentonville, AR	A TORNADO DAMAGED THE ROOFS OF A NUMBER OF HOMES...UPROOTED TREES...AND SNAPPED NUMEROUS LARGE TREE LIMBS. BASED ON THIS DAMAGE...THE TORNADO WAS RATED EF-0.
May 19, 12:10 AM CDT	NON-TSTM WND DMG	Bentonville, AR	TREE TRUNK SNAPPED 1 NORTH OF FULBRIGHT JUNIOR HIGH SCHOOL IN BENTONVILLE.
May 19, 12:14 AM CDT	TSTM WND DMG	Bentonville, AR	TREE DAMAGED AT THE BENTONVILLE MUNICIPAL AIRPORT
May 19, 12:15 AM CDT	TSTM WND DMG	Bentonville, AR	NUMEROUS LARGE TREES AT A BUSINESS COMPLEX UPROOTED. JUST NORTHEAST OF INTERSTATE 49 AT EXIT 88.
May 19, 12:15 AM CDT	TSTM WND DMG	Bentonville, AR	TREES DOWN, GARAGE DOORS BENT IN, CAR SIDE MIRRORS/MAILBOXES BENT. ITEMS PICKED UP AND MOVED 200 YDS IN DIFFERENT DIRECTIONS. NEIGHBORHOOD WAS LOCATED 2 MILES SW OF THE BENTONVILLE AIRPORT.
May 19, 12:15 AM CDT	TSTM WND GST 61	Bentonville, AR

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
May 18, 10:58 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.6 hours before the alert went out and 93 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.

750 
WFUS54 KTSA 190434
TORTSA
ARC007-OKC001-041-190515-
/O.NEW.KTSA.TO.W.0035.170519T0434Z-170519T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1134 PM CDT THU MAY 18 2017

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Western Benton County in northwestern Arkansas...
  Southeastern Delaware County in northeastern Oklahoma...
  North central Adair County in northeastern Oklahoma...

* Until 1215 AM CDT
    
* At 1133 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 5 miles west of Watts, moving northeast at 50
  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...
  Bentonville...                    Siloam Springs...
  Bella Vista...                    Gentry...
  Decatur...                        West Siloam Springs...
  Highfill...                       Watts...
  Springtown...                     Hiwasse...
  Miller...                         Centerton...
  Lake Francis...                   Fairmount...
  Vaughn...                         Ballard...
  Gallitin...                       Natural Falls State Park...

This includes Interstate 49 between mile markers 89 and 93.
 
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 3635 9418 3610 9454 3610 9455 3609 9455
      3601 9467 3615 9479 3650 9427 3650 9417
TIME...MOT...LOC 0433Z 218DEG 45KT 3612 9466 

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

$$

69

1 follow-up statement

345 
WWUS54 KTSA 190448
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1148 PM CDT THU MAY 18 2017

OKC001-041-190458-
/O.CAN.KTSA.TO.W.0035.000000T0000Z-170519T0515Z/
Delaware OK-Adair OK-
1148 PM CDT THU MAY 18 2017

...THE TORNADO WARNING FOR SOUTHEASTERN DELAWARE AND NORTH CENTRAL
ADAIR COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area therefore the warning has been cancelled.

A tornado watch remains in effect until midnight CDT for northeastern
Oklahoma. A tornado watch also remains in effect until 300 AM CDT for
northwestern Arkansas.

LAT...LON 3635 9418 3612 9451 3618 9457 3629 9459
      3650 9427 3650 9417
TIME...MOT...LOC 0448Z 227DEG 41KT 3624 9450 

$$

ARC007-190515-
/O.CON.KTSA.TO.W.0035.000000T0000Z-170519T0515Z/
Benton AR-
1148 PM CDT THU MAY 18 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR WESTERN
BENTON COUNTY...
    
At 1148 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Gentry, moving northeast at 50 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...
Bentonville...                    Siloam Springs...
Bella Vista...                    Gentry...
Decatur...                        West Siloam Springs...
Highfill...                       Springtown...
Hiwasse...                        Miller...
Centerton...                      Fairmount...
Vaughn...                         Gallitin...
Cherokee City...                  

This includes Interstate 49 between mile markers 89 and 93.
 
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 3635 9418 3612 9451 3618 9457 3629 9459
      3650 9427 3650 9417
TIME...MOT...LOC 0448Z 227DEG 41KT 3624 9450 

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

$$

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, 10:00 PM CDT	Tornado Warning	TSA	McIntosh	30 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, 11:42 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
May 19, 12:08 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more	67 min
May 19, 12:13 AM CDT	Tornado Warning	TSA	Benton, Carroll	47 min
May 19, 3:47 PM CDT	Special Weather Statement	TSA	Carroll	28 min

Nearby

Tornado Warnings in Oklahoma, 2017 Tornado Warnings in Arkansas, 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.