Alert archive / Oklahoma / Special Weather Statements in 2018

Special Weather Statement, NWS Tulsa, OK

May 20, 2018Tulsa County, Oklahoma

NWS Tulsa, OK issued this special weather statement at May 20, 2018, 3:19 AM CDT for Tulsa County, Oklahoma. It was in force for 26 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: May 20, 2018, 3:19 AM CDT (08:19 UTC)
Expired: May 20, 2018, 3:45 AM CDT
In force: 26 min
Issued by: NWS Tulsa, OK

County Tulsa County, OK

The radar

The Tulsa radar (KINX), 33 km from the middle of the area, began a volume at 08:20 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 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 May 20, 12:00 AM CDT, 3 hours 19 minutes earlier.

Area forecast discussion, May 20, 12:00 AM CDT, 3 hours 19 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
1200 AM CDT Sun May 20 2018

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM/KROG.
Additional storm chances will increase at all sites later tonight
as an ongoing thunderstorm complex moves east northeast. Will
carry tempo groups at all sites into mid morning. Cigs to largely
remain VFR, but vsbys will fall into MVFR categories in
thunderstorms. Expect VFR conditions at all sites after 16z-18z.

&&

.PREV DISCUSSION... /Issued 928 PM CDT Sat May 19 2018/

..UPDATE...

DISCUSSION...
Convective lull ongoing across the forecast area at this time with
focus turning to widespread convection being maintained over SW OK
/ NW TX region. Low level flow is shown to remain steady with
while mid level flow remains rather meager with resultant
propagation vectors allowing any sustained convective complex to
push into eastern OK later tonight. The remnant outflow boundary
across NE OK has become more diffuse however it may also serve as
somewhat of a focus later tonight.

Updated forecast will increase precip chances across SE OK while
also maintaining rather high chances across NE OK. Severe weather
potential is expected to remain rather isolated with the outside
potential for a more organized complex to emerge into SE OK later
tonight. This potential seems rather low at this point but will
reflect the possibility in related graphics.

&&

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

AVIATION.....23

Hazardous weather outlook, May 19, 5:07 PM CDT, 10 hours 12 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
507 PM CDT Sat May 19 2018

ARZ001-002-010-011-019-020-029-OKZ049-053>076-201015-
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 Sat May 19 2018

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

.DAY ONE...Today and Tonight.
TORNADO.
	RISK...Limited.
	AREA...Along Interstate 44 in northeast Oklahoma.
	ONSET...Through mid evening.

SEVERE THUNDERSTORM.
	RISK...Elevated.
	AREA...Primarily Eastern Oklahoma.
	ONSET...Ongoing...continuing into overnight hours.

DISCUSSION...
Severe storms across far northeast Oklahoma have recently
weakened and moved north into Kansas.  Additional storms
are developing across north central Oklahoma north of
a strong outflow boundary.  These storms will pose mainly
periodic chances of large hail as they spread eastward
across northeast Oklahoma.  Should any storm develop along
or south of the outflow boundary it would pose a more
substantial severe weather risk.

Through the late evening and overnight hours the focus
will be toward storms moving eastward across Oklahoma.
These storms may spread into eastern Oklahoma after 10 PM
and maintain some risk of severe weather, primarily with
locally damaging winds.

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

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
SUNDAY through FRIDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Thunderstorm chances will persist daily through next
week, however any severe weather risk looks to remain
isolated as winds aloft remain light.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, May 20, 2:04 AM CDT, 1 hour 15 minutes before

Special Weather Statement
National Weather Service Tulsa OK
204 AM CDT SUN MAY 20 2018

OKZ054-200730-
Osage OK-
204 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE COUNTY UNTIL
230 AM CDT...

At 204 AM CDT, a strong thunderstorm was located 5 miles west of
Sunset Lake, moving northeast at 25 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Pawhuska...                       Bigheart...
Osage Hills State Park...         Sunset Lake...
Wah Sha She State Park...

LAT...LON 3687 9600 3685 9600 3665 9631 3677 9647
      3700 9626 3700 9616
TIME...MOT...LOC 0704Z 223DEG 20KT 3677 9634

Lacy

Special weather statement, May 20, 2:14 AM CDT, 1 hour 5 minutes before

Special Weather Statement
National Weather Service Tulsa OK
214 AM CDT SUN MAY 20 2018

OKZ054-200745-
Osage OK-
214 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE COUNTY UNTIL
245 AM CDT...

At 213 AM CDT, a strong thunderstorm was located 3 miles south of
Elgin, moving northeast at 15 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...
Elgin...

LAT...LON 3700 9600 3696 9600 3686 9633 3696 9643
      3700 9640
TIME...MOT...LOC 0713Z 218DEG 12KT 3695 9627

Lacy

Special weather statement, May 20, 2:17 AM CDT, 1 hour 2 minutes before

Special Weather Statement
National Weather Service Tulsa OK
217 AM CDT SUN MAY 20 2018

OKZ065-200745-
Okfuskee OK-
217 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR OKFUSKEE COUNTY UNTIL 245 AM
CDT...

At 217 AM CDT, strong thunderstorms were located along a line
extending from near Little to 5 miles south of Cromwell to 3 miles
east of Holdenville. Movement was northeast at 35 mph.

Wind gusts of 50 to 55 mph will be possible with these storms.

Locations in or near the path include...
Okemah...                         Boley...
Weleetka...                       Paden...
Bearden...                        Castle...
Clearview...                      Welty...
Pharoah...                        Mason...

This includes Interstate 40 in Oklahoma between mile markers 212 and
231.

LAT...LON 3564 9648 3564 9640 3557 9619 3555 9619
      3555 9614 3554 9609 3538 9609 3538 9598
      3529 9598 3529 9644 3546 9644 3546 9647
      3543 9650 3545 9655 3544 9657 3540 9653
      3539 9655 3541 9658 3540 9662 3550 9663
TIME...MOT...LOC 0717Z 227DEG 32KT 3533 9668 3526 9645 3508 9633

Lacy

Special weather statement, May 20, 2:49 AM CDT, 30 minutes before

Special Weather Statement
National Weather Service Tulsa OK
249 AM CDT SUN MAY 20 2018

OKZ073-075-200815-
Pittsburg OK-Latimer OK-
249 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN LATIMER AND SOUTHEASTERN
PITTSBURG COUNTIES UNTIL 315 AM CDT...

At 248 AM CDT, a strong thunderstorm was located 4 miles southwest of
Higgins, moving north at 40 mph.

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

Locations in or near the path include...
Wilburton...                      Hartshorne...
Higgins...                        Robbers Cave State Park...
Haileyville...                    Gowen...
Dow...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3471 9562 3506 9561 3506 9528 3468 9541
TIME...MOT...LOC 0748Z 188DEG 34KT 3477 9551

Lacy

Special weather statement, May 20, 2:58 AM CDT, 21 minutes before

Special Weather Statement
National Weather Service Tulsa OK
258 AM CDT SUN MAY 20 2018

OKZ064-066-200830-
Okmulgee OK-Creek OK-
258 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL CREEK AND NORTHERN
OKMULGEE COUNTIES UNTIL 330 AM CDT...

At 258 AM CDT, strong thunderstorms were located along a line
extending from 3 miles east of Welty to 2 miles southeast of Okmulgee
State Park. Movement was north at 25 mph.

Wind gusts 40 to 50 mph will be possible with these storms.

Locations in or near the path include...
Okmulgee...                       Bristow...
Beggs...                          Slick...
Preston...                        Okmulgee State Park...
Bald Hill...                      Liberty...
Hectorville...

This includes Interstate 44 between mile markers 190 and 193.

LAT...LON 3586 9642 3585 9577 3584 9577 3554 9593
      3555 9609 3555 9619 3564 9619 3564 9640
TIME...MOT...LOC 0758Z 194DEG 21KT 3561 9634 3559 9603

Lacy

Special weather statement, May 20, 3:19 AM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tulsa OK
319 AM CDT SUN MAY 20 2018

OKZ060-064-066-067-200845-
Tulsa OK-Okmulgee OK-Wagoner OK-Creek OK-
319 AM CDT SUN MAY 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL CREEK...NORTHWESTERN
WAGONER...NORTHEASTERN OKMULGEE AND SOUTHEASTERN TULSA COUNTIES UNTIL
345 AM CDT...

At 317 AM CDT, a gust front was surging north into southern Tulsa
county, and may also affect portions of western Wagoner and far
eastern Creek counties.

Wind gusts up to 50 mph will be possible with this gust front.

Locations in or near the path include...
Tulsa...                          Broken Arrow...
Sand Springs...                   Bixby...
Sapulpa...                        Jenks...
Glenpool...                       Coweta...
Catoosa...                        Kiefer...
Mounds...                         Jenks Riverside Airport...
Oneta...                          Liberty...
Gray...                           Hectorville...
Leonard...

This includes Interstate 44 between mile markers 211 and 235.

LAT...LON 3616 9600 3617 9600 3616 9562 3615 9562
      3576 9581 3579 9608 3616 9615
TIME...MOT...LOC 0817Z 187DEG 34KT 3586 9593

Lacy

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 10:25 PM CDT	Severe Thunderstorm Warning	TSA	Osage	31 min
May 20, 12:58 AM CDT	Special Weather Statement	TSA	Kay	32 min
May 20, 1:12 AM CDT	Severe Thunderstorm Warning	TSA	Osage	48 min
May 20, 1:36 AM CDT	Special Weather Statement	TSA	Osage	24 min
May 20, 1:47 AM CDT	Special Weather Statement	TSA	Okfuskee	28 min
May 20, 1:50 AM CDT	Special Weather Statement	TSA	Osage	25 min
May 20, 2:02 AM CDT	Special Weather Statement	TSA	Pittsburg	28 min
May 20, 2:04 AM CDT	Special Weather Statement	TSA	Osage	26 min
May 20, 2:17 AM CDT	Special Weather Statement	TSA	Okfuskee	28 min
May 20, 2:36 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	39 min
May 20, 2:49 AM CDT	Special Weather Statement	TSA	Latimer	26 min
May 20, 2:58 AM CDT	Special Weather Statement	TSA	Okmulgee	32 min
May 20, 3:23 AM CDT	Special Weather Statement	TSA	Washington	37 min
May 20, 3:28 AM CDT	Areal Flood Advisory	TSA	Washington	3 hr
May 20, 3:41 AM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Wagoner	38 min
May 20, 3:48 AM CDT	Special Weather Statement	TSA	Muskogee	27 min
May 20, 4:00 AM CDT	Areal Flood Advisory	TSA	Osage	3 hr
May 20, 4:14 AM CDT	Special Weather Statement	TSA	Cherokee, Mayes	31 min
May 20, 4:18 AM CDT	Special Weather Statement	TSA	Craig, Nowata	27 min
May 20, 4:40 AM CDT	Special Weather Statement	TSA	Craig, Delaware, Nowata, Ottawa	35 min
May 20, 4:54 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	51 min
May 20, 5:21 AM CDT	Special Weather Statement	TSA	Delaware	24 min
May 20, 8:17 AM CDT	River Flood Warning	TSA	Ottawa	30 hr
May 20, 2:48 PM CDT	Special Weather Statement	TSA	Pushmataha	42 min
May 20, 3:07 PM CDT	Special Weather Statement	TSA	Ottawa	23 min
May 20, 3:38 PM CDT	Special Weather Statement	TSA	Ottawa	37 min
May 20, 4:06 PM CDT	Special Weather Statement	TSA	Adair	24 min
May 20, 4:20 PM CDT	Special Weather Statement	TSA	Delaware	25 min
May 20, 6:02 PM CDT	Special Weather Statement	TSA	Adair	43 min

Nearby

Special Weather Statements in Oklahoma, 2018 Every special weather statement in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.