Alert archive / Oklahoma / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

July 8, 2017Delaware County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 8, 2017, 3:50 AM CDT for Delaware County, Oklahoma. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 8, 2017, 3:50 AM CDT (08:50 UTC)
Expired: Jul 8, 2017, 4:30 AM CDT
In force: 40 min
Issued by: NWS Tulsa, OK

County Delaware County, OK

The radar

The Tulsa radar (KINX), 88 km from the middle of the area, began a volume at 08:53 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.8 hours before the alert went out and 99 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: 1004 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1929 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 8, 3:29 AM CDT, 21 minutes earlier.

Area forecast discussion, Jul 8, 3:29 AM CDT, 21 minutes before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Jul 7, 5:10 PM CDT, 10 hours 40 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
510 PM CDT Fri Jul 7 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-081000-
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-
510 PM CDT Fri Jul 7 2017

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

.DAY ONE...Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Northeast Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

HEAVY RAIN.
	RISK...Limited.
	AREA...Northeast Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

DANGEROUS HEAT.
	RISK...Elevated.
	AREA...Much of Eastern Oklahoam and Western Arkansas.
	ONSET...Ongoing.

DISCUSSION...
Scattered thunderstorms have developed across parts of far
northeast Oklahoma late this afternoon ahead of a cold front
moving south across southern Kansas. Scattered storm development
may continue through the night as the cold front moves south into
the area. A few of these storms may become severe, especially
early this evening, with gusty winds and hail up to quarter size
the main concern. The slow movement of storms will also result in
locally heavy rainfall.

Heat index values near or above 100 degrees will continue to be
possible across much of the area until sunset.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Local Spotter Activation May Be Needed.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
SATURDAY and SUNDAY...Thunderstorm Potential.
MONDAY through WEDNESDAY...No Hazards.
THURSDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Showers and thunderstorms will continue to be possible on Saturday
as the cold front moves through the region. Thunderstorms will
also be possible Saturday night into Sunday as a thunderstorm
complex is forecast to move out of Kansas and across the area.
Thunderstorm chances diminish early next week as high pressure
prevails. This will result in hotter temperatures across the
region.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Jul 7, 10:43 PM CDT, 5 hours 7 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1043 PM CDT FRI JUL 7 2017

ARZ001-080415-
Benton AR-
1043 PM CDT FRI JUL 7 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BENTON COUNTY UNTIL
1115 PM CDT...

At 1043 PM CDT, a strong thunderstorm was located 4 miles west of
Decatur, moving southeast at 35 mph.

Dime size hail will be possible with this storm.

Locations in or near the path include...
Rogers...                         Bentonville...
Siloam Springs...                 Lowell...
Gentry...                         Gravette...
Cave Springs...                   Decatur...
Highfill...                       Springtown...
Centerton...                      Fairmount...
Vaughn...                         Healing Springs...
Gallitin...                       Rocky Comfort...
Cherokee City...

This includes Interstate 49 between mile markers 78 and 82.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3628 9409 3621 9422 3622 9433 3615 9434
      3614 9439 3611 9439 3611 9440 3622 9457
      3640 9460 3645 9457
TIME...MOT...LOC 0343Z 299DEG 30KT 3634 9454

Lacy

Special weather statement, Jul 8, 12:25 AM CDT, 3 hours 25 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1225 AM CDT SAT JUL 8 2017

OKZ057-058-080600-
Craig OK-Ottawa OK-
1225 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CRAIG AND WESTERN
OTTAWA COUNTIES UNTIL 100 AM CDT...

At 1225 AM CDT, a strong thunderstorm was located near Welch, moving
south at 25 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations in or near the path include...
Miami...                          Fairland...
Afton...                          Welch...
Bluejacket...                     Narcissa...
Pyramid Corners...

This includes Interstate 44 between mile markers 290 and 305.

LAT...LON 3695 9517 3697 9493 3669 9480 3667 9517
TIME...MOT...LOC 0525Z 348DEG 20KT 3687 9504

Special weather statement, Jul 8, 12:47 AM CDT, 3 hours 3 minutes before

Special Weather Statement
National Weather Service Tulsa OK
1247 AM CDT SAT JUL 8 2017

ARZ001-002-080630-
Carroll AR-Benton AR-
1247 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BENTON AND
NORTHWESTERN CARROLL COUNTIES UNTIL 130 AM CDT...

At 1247 AM CDT, a strong thunderstorm was located 3 miles west of
Seligman, moving southeast at 20 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations in or near the path include...
Pea Ridge...                      Garfield...
Gateway...                        Beaver...
Avoca...                          Larue...
Hill Top...                       Beaver Lake...
Bland...                          Walnut Hill...
Busch...

LAT...LON 3631 9393 3648 9424 3650 9421 3650 9371
TIME...MOT...LOC 0547Z 315DEG 17KT 3652 9401

Special weather statement, Jul 8, 2:21 AM CDT, 1 hour 29 minutes before

Special Weather Statement
National Weather Service Tulsa OK
221 AM CDT SAT JUL 8 2017

OKZ063-080745-
Delaware OK-
221 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN DELAWARE COUNTY
UNTIL 245 AM CDT...

At 221 AM CDT, a strong thunderstorm was located 4 miles south of
Bernice, moving southeast at 20 mph.

Dime size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations in or near the path include...
Jay...                            Grove...
Bernice...                        Cleora...
Honey Creek State Park...         Bernice State Park...
Zena...

LAT...LON 3667 9485 3647 9468 3638 9490 3653 9501
      3658 9500
TIME...MOT...LOC 0721Z 327DEG 17KT 3656 9490

Special weather statement, Jul 8, 2:56 AM CDT, 54 minutes before

Special Weather Statement
National Weather Service Tulsa OK
256 AM CDT SAT JUL 8 2017

ARZ019-020-029-080830-
Sebastian AR-Franklin AR-Crawford AR-
256 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN FRANKLIN...SOUTHERN
CRAWFORD AND NORTHERN SEBASTIAN COUNTIES UNTIL 330 AM CDT...

At 256 AM CDT, strong thunderstorms were located along a line
extending from 5 miles southwest of Ozark to 3 miles northwest of Van
Buren. Movement was southeast at 15 mph.

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

Locations in or near the path include...
Fort Smith...                     Van Buren...
Ozark...                          Charleston...
Alma...                           Barling...
Lavaca...                         Mulberry...
Dyer...                           Branch...
Denning...                        Rudy...
Bloomer...                        Figure Five...
Kibler...                         Central City...
Concord...                        Caulksville...
Shibley...                        Vesta...

This includes the following highways,
 Interstate 40 in Arkansas between mile markers 1 and 36.
 Interstate 540 between mile markers 1 and 14.
 Interstate 49 between mile markers 22 and 24.

LAT...LON 3537 9375 3538 9376 3540 9379 3542 9380
      3531 9381 3532 9392 3525 9392 3527 9442
      3554 9443 3555 9384 3537 9373
TIME...MOT...LOC 0756Z 325DEG 12KT 3542 9388 3547 9440

Special weather statement, Jul 8, 3:50 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tulsa OK
350 AM CDT SAT JUL 8 2017

ARZ001-OKZ063-080930-
Benton AR-Delaware OK-
350 AM CDT SAT JUL 8 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL BENTON AND
SOUTHEASTERN DELAWARE COUNTIES UNTIL 430 AM CDT...

At 350 AM CDT, a strong thunderstorm was located 5 miles southeast of
Jay, moving southeast at 20 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

Locations in or near the path include...
Siloam Springs...                 Jay...
Gentry...                         Decatur...
West Siloam Springs...            Colcord...
Springtown...                     Maysville...
Lake Eucha State Park...          Cherokee City...

LAT...LON 3627 9439 3616 9462 3616 9465 3638 9486
      3649 9468
TIME...MOT...LOC 0850Z 321DEG 18KT 3639 9472

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:58 PM CDT	Special Weather Statement	TSA	Mayes	47 min
Jul 7, 10:10 PM CDT	Special Weather Statement	TSA	Mayes	50 min
Jul 8, 12:25 AM CDT	Special Weather Statement	TSA	Ottawa	35 min
Jul 8, 12:57 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	48 min
Jul 8, 1:27 AM CDT	Severe Thunderstorm Warning	TSA	Delaware	33 min
Jul 8, 1:43 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware	29 min
Jul 8, 2:21 AM CDT	Special Weather Statement	TSA	Delaware	24 min
Jul 8, 3:38 AM CDT	Areal Flood Advisory	TSA	Delaware	3 hr
Jul 8, 4:30 AM CDT	Areal Flood Advisory	TSA	Sequoyah	3 hr
Jul 8, 7:28 AM CDT	Special Weather Statement	TSA	Washington	47 min
Jul 8, 7:54 AM CDT	Special Weather Statement	TSA	Mayes, Rogers, Tulsa, Wagoner	51 min
Jul 8, 10:01 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, Pittsburg, Pushmataha	3 hr
Jul 7, 10:43 PM CDT	Special Weather Statement	TSA	Benton	32 min
Jul 8, 12:08 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	37 min
Jul 8, 12:36 AM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	54 min
Jul 8, 12:47 AM CDT	Special Weather Statement	TSA	Benton	43 min
Jul 8, 1:00 AM CDT	Areal Flood Advisory	TSA	Benton, Carroll, Madison	4 hr
Jul 8, 1:02 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	28 min
Jul 8, 2:00 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	45 min
Jul 8, 2:27 AM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	33 min
Jul 8, 2:56 AM CDT	Special Weather Statement	TSA	Franklin	34 min
Jul 8, 4:04 AM CDT	Special Weather Statement	TSA	Sebastian	41 min
Jul 8, 5:09 AM CDT	Special Weather Statement	TSA	Sebastian	21 min
Jul 8, 6:14 AM CDT	Special Weather Statement	TSA	Sebastian	46 min
Jul 8, 6:34 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	41 min
Jul 8, 7:14 AM CDT	Special Weather Statement	TSA	Sebastian	31 min
Jul 8, 7:16 AM CDT	Special Weather Statement	TSA	Crawford	59 min

Nearby

Special Weather Statements in Oklahoma, 2017 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.