Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 71, NWS Tulsa, OK

April 4, 2017Cherokee County, Delaware County, Mayes County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 4, 2017, 6:33 PM CDT for Cherokee County, Delaware County, Mayes County, Oklahoma. It was in force for 42 min. 2 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 4, 2017, 6:33 PM CDT (23:33 UTC)
Expired: Apr 4, 2017, 7:15 PM CDT
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cherokee County, OK, Delaware County, OK, Mayes County, OK

The radar

The Tulsa radar (KINX), 49 km from the middle of the area, began a volume at 23:33 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 4, 6:40 PM CDT	HAIL 1	Locust Grove, OK
Apr 4, 6:43 PM CDT	HAIL 1	Locust Grove, OK

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 7 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 4, 2:31 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 133 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 40 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

266 
WUUS54 KTSA 042333
SVRTSA
OKC021-041-097-050015-
/O.NEW.KTSA.SV.W.0071.170404T2333Z-170405T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
633 PM CDT TUE APR 4 2017

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Delaware County in northeastern Oklahoma...
  Southern Mayes County in northeastern Oklahoma...
  Northwestern Cherokee County in east central Oklahoma...

* Until 715 PM CDT

* At 633 PM CDT, a severe thunderstorm was located over Rose, moving
  northeast at 50 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations in or near the path include...
  Jay...                            Chouteau...
  Locust Grove...                   Salina...
  Langley...                        Spavinaw...
  Disney...                         Hoot Owl...
  Peggs...                          Rose...
  Spavinaw State Park...            Leach...
  Chloeta...                        Sportsmen Acres Community...
  Cherokee State Park...            Lake Eucha State Park...
  Snowdale State Park...            Zena...
  Murphy...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3647 9461 3637 9460 3600 9522 3604 9523
      3604 9521 3607 9521 3607 9529 3616 9537
      3659 9491
TIME...MOT...LOC 2333Z 220DEG 39KT 3621 9502 

HAIL...1.00IN
WIND...60MPH
 
$$

2 follow-up statements

574 
WWUS54 KTSA 042351
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
651 PM CDT TUE APR 4 2017

OKC021-042359-
/O.CAN.KTSA.SV.W.0071.000000T0000Z-170405T0015Z/
Cherokee OK-
651 PM CDT TUE APR 4 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHEROKEE COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 900 PM CDT for
northwestern Arkansas...and northeastern and east central Oklahoma.

LAT...LON 3647 9461 3637 9460 3616 9495 3616 9512
      3618 9517 3629 9519 3659 9491
TIME...MOT...LOC 2349Z 228DEG 32KT 3626 9502 

$$

OKC041-097-050015-
/O.CON.KTSA.SV.W.0071.000000T0000Z-170405T0015Z/
Delaware OK-Mayes OK-
651 PM CDT TUE APR 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR CENTRAL DELAWARE AND SOUTHEASTERN MAYES COUNTIES...

At 649 PM CDT, a severe thunderstorm was located near Rose, moving
northeast at 35 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. At 640 pm quarter size hail was reported 
         on the Cherokee turnpike at Locust Grove. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations in or near the path include...
Jay...                            Locust Grove...
Salina...                         Spavinaw...
Disney...                         Hoot Owl...
Spavinaw State Park...            Leach...
Chloeta...                        Rose...
Zena...                           Lake Eucha State Park...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3647 9461 3637 9460 3616 9495 3616 9512
      3618 9517 3629 9519 3659 9491
TIME...MOT...LOC 2349Z 228DEG 32KT 3626 9502 

HAIL...1.00IN
WIND...60MPH
 
$$

466 
WWUS54 KTSA 050005
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
705 PM CDT TUE APR 4 2017

OKC097-050015-
/O.CAN.KTSA.SV.W.0071.000000T0000Z-170405T0015Z/
Mayes OK-
705 PM CDT TUE APR 4 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MAYES COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore the warning has been cancelled.

A severe thunderstorm watch remains in effect until 900 PM CDT for
northwestern Arkansas...and northeastern and east central Oklahoma.

LAT...LON 3647 9461 3637 9460 3616 9495 3616 9501
      3649 9501 3659 9491
TIME...MOT...LOC 0005Z 222DEG 40KT 3639 9485 

$$

OKC041-050015-
/O.CON.KTSA.SV.W.0071.000000T0000Z-170405T0015Z/
Delaware OK-
705 PM CDT TUE APR 4 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR CENTRAL DELAWARE COUNTY...

At 705 PM CDT, a severe thunderstorm was located 3 miles southwest of
Jay, moving northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations in or near the path include...
Jay...                            Disney...
Leach...                          Chloeta...
Zena...                           Lake Eucha State Park...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3647 9461 3637 9460 3616 9495 3616 9501
      3649 9501 3659 9491
TIME...MOT...LOC 0005Z 222DEG 40KT 3639 9485 

HAIL...1.00IN
WIND...60MPH
 
$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 4, 6:21 PM CDT, 12 minutes earlier.

Area forecast discussion, Apr 4, 6:21 PM CDT, 12 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
621 PM CDT Tue Apr 4 2017

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Strong/severe storms have shifted just east of the KBVO...
KTUL...KRVS and KMLC TAF sites and will move into western AR
after 00-01Z. Brief IFR conditions...gusty winds and hail likely
with the stronger storms. Most of the activity will be shifting
east of the area after 05-06Z...with winds becoming gusty from
the west and northwest. Expect IFR cigs to move overspread most
of the area through the remainder of the night.

&&

.PREV DISCUSSION... /Issued 251 PM CDT Tue Apr 4 2017/

DISCUSSION...
Vigorous upper wave currently moving out of the Texas panhandle
will approach from the west this afternoon/evening with the threat
for severe weather. Surface low was located east of Fredrick with
a warm front extending into northeast Oklahoma. As surface low
tracks northeast, warm front is forecast to lift north to near
I-44 by mid/late afternoon. Strong to severe thunderstorms will
likely develop near the frontal boundary across northeast Oklahoma
by late afternoon as cap continues to erode with strong surface
heating. Moderate instability, coupled with strong shear, will
initially support a large hail threat with storms transitioning
to a hail/damaging wind threat as convective line moves into
northwest Arkansas this evening. There is a limited tornado
threat with any supercells that develop near the warm front
across NE OK, however the main inhibiting factor remains the lack
of deeper low level moisture.

Main severe threat will end shortly after midnight as storms move
east of northwest Arkansas. Behind departing system, cold/breezy
conditions are expected into the day Wednesday with scattered
showers across NE OK/NW AR. Surface high settles over the region
Thursday night and with clear skies a freeze appears likely over
portions of Eastern Oklahoma and northwest Arkansas early Friday
morning.

Upper ridge begins to build back into the Southern Plains Friday
into the early part of the weekend with warmer conditions. Strong
upper jet streak will move out of the desert southwest during the
day Sunday with showers/thunderstorm chances increasing along
approaching Pacific front Sunday night into Monday.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   48  63  42  66 /  80  30  10   0
FSM   54  63  42  67 /  80  40  10   0
MLC   52  66  41  69 /  70  20  10   0
BVO   45  63  36  68 /  80  30  10   0
FYV   48  56  36  61 /  80  50  10   0
BYV   50  56  41  60 /  80  50  10   0
MKO   50  62  40  67 /  80  30  10   0
MIO   48  60  39  62 /  80  50  10   0
F10   50  64  41  68 /  60  20  10   0
HHW   52  66  41  70 /  80  10  10   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...None.
AR...None.
&&

AVIATION...18

Hazardous weather outlook, Apr 4, 5:07 PM CDT, 1 hour 26 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
507 PM CDT Tue Apr 4 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-051030-
Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK-
Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK-
Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK-
Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK-
Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK-
Washington OK-Washington AR-
507 PM CDT Tue Apr 4 2017

...Severe Storms This Evening...Large Hail Primary Threat...Especially NE OK.

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Through Tonight.
TORNADO.
	RISK...Elevated.
	AREA...Northeast Oklahoma.
	ONSET...Late Afternoon or Early Evening.

SEVERE THUNDERSTORM.
	RISK...Critical.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

	AREA AT GREATEST RISK...Northeast Oklahoma.

FLASH FLOOD.
	RISK...Limited.
	AREA...Eastern Oklahoma.
	ONSET...This Evening.

HEAVY RAIN.
	RISK...Limited.
	AREA...Eastern Oklahoma.
	ONSET...Ongoing.

SIGNIFICANT WINDS.
	RISK...Limited.
	AREA...Northeast OKlahoma.
	ONSET...After Midnight.

DISCUSSION...
Scattered severe thunderstorms remain ongoing late this afternoon
across parts of northeast Oklahoma as an area of low pressure
continues to lift northeast along with attendant surface
boundaries. Golf ball size hail will be possible...however a few
storms may take on a supercell structure and will have potential
to produce baseball size hail...along with a tornado or two into
the evening hours...mainly across northeast Oklahoma. Severe
weather will continue into the evening and spread east as the
aforementioned features track that direction. Storms that spread
into western Arkansas this evening. will encounter a less
favorable environment as instability will be less across these
areas. However...the passing strong storm system will help
maintain the risk of severe weather through the evening hours. The
severe weather potential will end around midnight.

Locally heavy rainfall is possible north of Interstate 40 this
evening into tonight as widespread rains develop. A strong cold
front will follow the storms system with strong northerly winds
spreading into the region tonight behind the boundary.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Activation of the Regional Spotter Network Expected.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
WEDNESDAY...High Wind Potential.
THURSDAY and FRIDAY...No Hazards.
SATURDAY...High Wind Potential.
SUNDAY...Thunderstorm Potential...High Wind Potential.
MONDAY...Thunderstorm Potential...Heavy Rain Potential.

EXTENDED DISCUSSION...
Gusty winds and much cooler temperatures will prevail on
Wednesday. Temperatures will warm by the weekend with gusty
southerly winds returning on Saturday. Thunderstorm chances return
by early next week.

weather.gov/tulsa Contains additional information.

In the hours before

Local storm report, Apr 4, 6:18 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
618 PM CDT TUE APR 04 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0618 PM     HAIL             EUFAULA                 35.29N 95.58W
04/04/2017  E1.00 INCH       MCINTOSH           OK   EMERGENCY MNGR

            ALSO MEASURED 50MPH WINDS.

&&

AEJ

Local storm report, Apr 4, 6:25 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
625 PM CDT TUE APR 04 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 PM     HAIL             EUFAULA                 35.29N 95.58W
04/04/2017  E1.00 INCH       MCINTOSH           OK   EMERGENCY MNGR

&&

AEJ

Special weather statement, Apr 4, 6:25 PM CDT, 8 minutes before

Special Weather Statement
National Weather Service Tulsa OK
625 PM CDT TUE APR 4 2017

OKZ054-059-050000-
Osage OK-Pawnee OK-
625 PM CDT TUE APR 4 2017

...SIGNIFICANT WEATHER ADVISORY FOR OSAGE AND SOUTH CENTRAL PAWNEE
COUNTIES UNTIL 700 PM CDT...

At 625 PM CDT, strong thunderstorms were located along a line
extending from near Hardy to 3 miles northwest of Cleveland. Movement
was northeast at 55 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
these storms.

Locations in or near the path include...
Pawhuska...                       Hominy...
Cleveland...                      Barnsdall...
Shidler...                        Wynona...
Burbank...                        Blackburn...
Elgin...                          Grainola...
Foraker...                        Bigheart...
Pearsonia...                      Osage Hills State Park...
Okesa...                          Webb City...
Wah Sha She State Park...         Tallant...
Pershing...                       Nelagoney...

A severe thunderstorm watch remains in effect until 900 PM CDT for
northeastern Oklahoma.

LAT...LON 3700 9610 3654 9600 3623 9654 3678 9677
      3678 9675 3700 9675
TIME...MOT...LOC 2325Z 233DEG 49KT 3699 9680 3633 9652

Local storm report, Apr 4, 6:26 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
626 PM CDT TUE APR 04 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0618 PM     HAIL             BURBANK                 36.69N 96.73W
04/04/2017  E0.88 INCH       OSAGE              OK   PUBLIC

            ALSO HAD STRONG WINDS

&&

AEJ

Local storm report, Apr 4, 6:30 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
630 PM CDT TUE APR 04 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0618 PM     TSTM WND DMG     BURBANK                 36.69N 96.73W
04/04/2017                   OSAGE              OK   PUBLIC

            12 INCH TREE LIMBS DOWN

&&

AEJ

Special weather statement, Apr 4, 6:31 PM CDT, 2 minutes before

Special Weather Statement
National Weather Service Tulsa OK
631 PM CDT TUE APR 4 2017

OKZ049-073>075-050000-
Haskell OK-Pittsburg OK-Latimer OK-Pushmataha OK-
631 PM CDT TUE APR 4 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL HASKELL...
NORTHWESTERN PUSHMATAHA...LATIMER AND SOUTHEASTERN PITTSBURG COUNTIES
UNTIL 700 PM CDT...

At 631 PM CDT, strong thunderstorms were located along a line
extending from 4 miles west of Hartshorne to 5 miles northwest of
Kosoma. Movement was northeast at 60 mph.

Dime size hail and winds in excess of 40 mph will be possible with
these storms.

Locations in or near the path include...
Wilburton...                      Clayton...
Hartshorne...                     Alderson...
Kinta...                          Clayton Lake State Park...
Damon...                          Higgins...
Tuskahoma...                      Yanush...
Robbers Cave State Park...        Stanley...
Kiamichi...                       Dunbar...
Lequire...                        Haileyville...
Eubanks...                        Sardis...
Gowen...                          Panola...

A severe thunderstorm watch remains in effect until 900 PM CDT for
southeastern Oklahoma.

LAT...LON 3427 9577 3451 9574 3451 9567 3459 9567
      3460 9573 3492 9568 3522 9507 3464 9512
TIME...MOT...LOC 2331Z 231DEG 53KT 3484 9563 3441 9568

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 8:36 AM CDT	River Flood Warning	TSA	Ottawa	4 days
Apr 4, 3:46 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	44 min
Apr 4, 4:06 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Pawnee	39 min
Apr 4, 4:22 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa, Wagoner	38 min
Apr 4, 4:34 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	41 min
Apr 4, 4:47 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	43 min
Apr 4, 4:52 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	21 min
Apr 4, 5:16 PM CDT	Special Weather Statement	TSA	Tulsa	29 min
Apr 4, 5:18 PM CDT	Special Weather Statement	TSA	Okmulgee	27 min
Apr 4, 5:20 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Tulsa	40 min
Apr 4, 5:23 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa, Rogers	52 min
Apr 4, 5:29 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Tulsa, Wagoner	46 min
Apr 4, 5:32 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Tulsa, Wagoner	28 min
Apr 4, 5:34 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Okfuskee, Okmulgee	41 min
Apr 4, 5:41 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes	34 min
Apr 4, 6:00 PM CDT	Special Weather Statement	TSA	Mayes, Rogers, Wagoner	45 min
Apr 4, 6:03 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg	42 min
Apr 4, 6:04 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	26 min
Apr 4, 6:06 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	39 min
Apr 4, 6:08 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Wagoner	37 min
Apr 4, 6:25 PM CDT	Special Weather Statement	TSA	Osage	35 min
Apr 4, 6:27 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Muskogee, Sequoyah, Wagoner	48 min
Apr 4, 6:29 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	46 min
Apr 4, 6:31 PM CDT	Special Weather Statement	TSA	Latimer	29 min
Apr 4, 6:40 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, Muskogee, Pittsburg, Sequoyah	35 min
Apr 4, 6:43 PM CDT	Special Weather Statement	TSA	Cherokee	32 min
Apr 4, 6:58 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Every severe thunderstorm warning 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.