Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 392, NWS Tulsa, OK

July 2, 20175 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 2, 2017, 6:15 PM CDT for 5 counties in Oklahoma. It was in force for 30 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: Jul 2, 2017, 6:15 PM CDT (23:15 UTC)
Expired: Jul 2, 2017, 6:45 PM CDT
In force: 30 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cherokee County, OK, Delaware County, OK, Mayes County, OK, Rogers County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 32 km from the middle of the area, began a volume at 23:19 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
Jul 2, 6:18 PM CDT	TSTM WND DMG	5 N Wagoner, OK	TREES DOWN NORTH OF WAGONER. TIME ESTIMATED BY RADAR.
Jul 2, 6:18 PM CDT	TSTM WND GST 65	5 N Wagoner, OK	NORTH OF WAGONER. TIME ESTIMATED BY RADAR.

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 3 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.3 hours before the alert went out and 147 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: 1797 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

367 
WUUS54 KTSA 022315
SVRTSA
OKC021-041-097-131-145-022345-
/O.NEW.KTSA.SV.W.0392.170702T2315Z-170702T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
615 PM CDT SUN JUL 2 2017

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Eastern Rogers County in northeastern Oklahoma...
  Southwestern Delaware County in northeastern Oklahoma...
  Mayes County in northeastern Oklahoma...
  Northeastern Wagoner County in northeastern Oklahoma...
  Northwestern Cherokee County in east central Oklahoma...

* Until 645 PM CDT

* At 614 PM CDT, severe thunderstorms were located along a line
  extending from 5 miles west of Adair to 2 miles east of Pryor to 7
  miles northeast of Wagoner to 3 miles north of Tullahassee, moving
  east at 35 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations in or near the path include...
  Wagoner...                        Pryor...
  Pryor Creek...                    Chouteau...
  Inola...                          Locust Grove...
  Salina...                         Langley...
  Adair...                          Hulbert...
  Spavinaw...                       Disney...
  Pensacola...                      Hoot Owl...
  Peggs...                          Cherokee State Park...
  Rose...                           Leach...
  Spavinaw State Park...            Sportsmen Acres Community...

This includes Interstate 44 between mile markers 255 and 271.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3651 9503 3635 9493 3609 9491 3589 9508
      3587 9549 3603 9548 3627 9553 3649 9548
TIME...MOT...LOC 2314Z 256DEG 31KT 3644 9536 3631 9527 3602 9525 3589
9546

HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

857 
WWUS54 KTSA 022342
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
642 PM CDT SUN JUL 2 2017

OKC021-041-097-131-145-022352-
/O.EXP.KTSA.SV.W.0392.000000T0000Z-170702T2345Z/
Rogers OK-Delaware OK-Mayes OK-Wagoner OK-Cherokee OK-
642 PM CDT SUN JUL 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ROGERS...SOUTHWESTERN
DELAWARE...MAYES...NORTHEASTERN WAGONER AND NORTHWESTERN CHEROKEE
COUNTIES WILL EXPIRE AT 645 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However small hail,
gusty winds and heavy rain are still possible with these
thunderstorms.

LAT...LON 3651 9503 3635 9493 3609 9491 3589 9508
      3587 9549 3603 9548 3627 9553 3649 9548
TIME...MOT...LOC 2342Z 256DEG 31KT 3650 9507 3637 9498 3608 9496 3595
9517

$$

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 Jul 2, 3:09 PM CDT, 3 hours 6 minutes earlier.

Area forecast discussion, Jul 2, 3:09 PM CDT, 3 hours 6 minutes before

Area Forecast Discussion
National Weather Service Tulsa OK
309 PM CDT Sun Jul 2 2017

.DISCUSSION...
Thunderstorm chances will ramp up later this afternoon and into
Tonight as an MCV currently across central Oklahoma moves into the
eastern portions of Oklahoma. With little to no cap in place across
the region, thunderstorms are expected to develop relatively easily
as the MCV moves into the region. Some the storms will likely become
severe with more than sufficient instability in place. strong gusty
winds will be the main concern with some large hail possible as well.
Locally heavy rain will also be problematic with more than an inch of rain
possible in a short period of time. These storms could last into the
early morning hours as they shift to the east and south across the
area. Additional thunderstorms will be possible late tonight and into
early Monday morning as a thunderstorm complex approaches from the west.
It is possible that some locations across southeast Oklahoma could see
upwards of 3 inches of rain tonight which could lead to flooding of low
lying areas.

Scattered showers and thunderstorms will be possible again on Monday
with possibly another MCV moving across the region and in the vicinity
of any residual outflow boundaries lingering across the area. It is also
looking more likely that another MCS will roll out of Kansas and across
eastern Oklahoma and western Arkansas late Monday night into Tuesday morning.
Additional showers and thunderstorms will be possible Tuesday afternoon into
Tuesday night as a mid-level shortwave moves slowly across the Central and
Southern Plains. In fact, the chances of showers and thunderstorms will
remain in the forecast through Thursday as the mid-level shortwave eventually
shifts into the Ohio Valley.

A high pressure ridge aloft will build into eastern Oklahoma and western
Arkansas Friday and Saturday resulting in somewhat hotter temperatures on
Friday and possibly Saturday.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   72  88  73  89 /  60  40  40  50
FSM   73  87  73  90 /  60  40  30  40
MLC   73  88  74  90 /  60  40  30  40
BVO   70  87  71  88 /  60  40  60  50
FYV   69  82  70  85 /  60  40  30  50
BYV   69  84  69  85 /  60  40  30  50
MKO   71  86  73  88 /  60  40  40  40
MIO   70  86  70  87 /  60  40  60  50
F10   72  88  73  89 /  60  40  30  50
HHW   74  90  74  91 /  60  40  20  20

&&

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

LONG TERM....10

Hazardous weather outlook, Jul 2, 4:43 PM CDT, 1 hour 32 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
443 PM CDT Sun Jul 2 2017

ARZ001-002-010-011-019-020-029-OKZ049-053>076-031030-
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-
443 PM CDT Sun Jul 2 2017

...CHANCE OF SEVERE STORMS THIS AFTERNOON AND EVENING...

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

.DAY ONE...Today and Tonight.

SEVERE THUNDERSTORM.
	RISK...Elevated.
	AREA...West of highway 69 in eastern Oklahoma.
	ONSET...Ongoing.

FLASH FLOOD.
	RISK...Limited.
	AREA...much of southeast Oklahoma and west central Arkansas.
	ONSET...This evening.

HEAVY RAIN.
	RISK...Significant.
	AREA...Eastern Oklahoma and west central Arkansas.
 	ONSET...This evening.

 	AREA AT GREATEST RISK...south of I-40 in Oklahoma.

DANGEROUS HEAT.
	RISK...Limited.
	AREA...Far east central Oklahoma into west central Arkansas.
	ONSET...Ongoing...ending by sunset.

DISCUSSION...

A band of thunderstorms will sweep across northeast and east
central Oklahoma this afternoon and into southeast Oklahoma and
western Arkansas by this evening. Conditions will support a risk
of severe weather through late evening with locally damaging winds
and pockets of severe hail being the primary hazards. Locally
heavy rainfall is possible across the entire region. However,
there are indications that storms could train across portions of
southeast Oklahoma later this evening and tonight, where an
elevated risk of heavy rainfall and localized flash flooding is
possible. As with all thunderstorms there is a risk of lightning,
and any outdoor activities should be mindful of lightning safety.

Heat indices are in the 100 to 106 degree range across far east
central Oklahoma and west central Arkansas, basically in the
Arkansas river valley. Conditions will improve by sunset.

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

.DAYS TWO THROUGH SEVEN...Monday through Saturday.
MONDAY thru WEDNESDAY...Thunderstorm Potential...Heavy Rain Potential.
THURSDAY...Thunderstorm Potential.
FRIDAY and SATURDAY...No Hazards.

EXTENDED DISCUSSION...

Thunderstorms may be ongoing early Monday morning with additional
development possible during the afternoon and evening hours.  The
unsettled weather pattern will continue through mid week with daily
thunderstorm chances.  A few strong to severe storms are possible
during this same period with locally damaging winds the most likely
hazard. Pockets of locally heavy rainfall will also be possible
with expected slow-moving storm clusters. Late next week the
pattern transitions to lower rain chances and hot and humid
weather prevailing over the region.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Jul 2, 5:06 PM CDT, 1 hour 9 minutes before

Special Weather Statement
National Weather Service Tulsa OK
506 PM CDT SUN JUL 2 2017

OKZ054-055-060-022245-
Tulsa OK-Osage OK-Washington OK-
506 PM CDT SUN JUL 2 2017

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OSAGE...SOUTHWESTERN
WASHINGTON AND NORTH CENTRAL TULSA COUNTIES UNTIL 545 PM CDT...

At 506 PM CDT, strong thunderstorms were located along a line
extending from 7 miles northeast of Kaw Lake to Pawhuska to 7 miles
west of Sperry. Movement was northeast at 30 mph.

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

Locations in or near the path include...
Bartlesville...                   Pawhuska...
Skiatook...                       Barnsdall...
Ramona...                         Shidler...
Wynona...                         Ochelata...
Avant...                          Vera...
Grainola...                       Foraker...
Bigheart...                       Pearsonia...
Osage Hills State Park...         Okesa...
Webb City...                      Tallant...
Pershing...                       Nelagoney...

LAT...LON 3679 9600 3640 9580 3623 9617 3659 9643
      3678 9678 3678 9675 3694 9675 3700 9663
      3700 9642
TIME...MOT...LOC 2206Z 242DEG 25KT 3686 9678 3666 9634 3627 9612

Special weather statement, Jul 2, 5:14 PM CDT, 1 hour 1 minute before

Special Weather Statement
National Weather Service Tulsa OK
514 PM CDT SUN JUL 2 2017

OKZ065-066-070-071-073-022300-
Pittsburg OK-Muskogee OK-Okmulgee OK-Okfuskee OK-McIntosh OK-
514 PM CDT SUN JUL 2 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN MCINTOSH...NORTHWESTERN
PITTSBURG...NORTHWESTERN MUSKOGEE...OKMULGEE AND SOUTHEASTERN
OKFUSKEE COUNTIES UNTIL 600 PM CDT...

At 514 PM CDT, strong thunderstorms were located along a line
extending from 4 miles northwest of Okmulgee State Park to 3 miles
southeast of Gerty. Movement was east at 35 mph.

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

Locations in or near the path include...
Mcalester...                      Okmulgee...
Henryetta...                      Morris...
Weleetka...                       Dewar...
Savanna...                        Schulter...
Boynton...                        Indianola...
Grayson...                        Council Hill...
Hanna...                          Hoffman...
Clearview...                      Stidham...
Preston...                        Raiford...
Haywood...                        Vivian...

This includes Interstate 40 in Oklahoma between mile markers 225 and
256.

LAT...LON 3570 9617 3579 9563 3578 9561 3478 9576
      3477 9609 3505 9609 3512 9603 3512 9601
      3515 9601 3515 9598 3529 9598 3529 9623
TIME...MOT...LOC 2214Z 250DEG 29KT 3567 9610 3479 9626

Local storm report, Jul 2, 5:23 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
523 PM CDT SUN JUL 02 2017

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

0520 PM     TSTM WND GST     5 ESE TULSA             36.11N 95.84W
07/02/2017  M61 MPH          TULSA              OK   TRAINED SPOTTER

&&

AEJ

Local storm report, Jul 2, 5:46 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
546 PM CDT SUN JUL 02 2017

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

0530 PM     TSTM WND DMG     9 NNE BROKEN ARROW      36.17N 95.73W
07/02/2017                   ROGERS             OK   PUBLIC

            ONE INCH TREE LIMBS BROKEN, SHINGLES BLOWN OFF ROOF.

&&

AEJ

Local storm report, Jul 2, 6:02 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
602 PM CDT SUN JUL 02 2017

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

0540 PM     TSTM WND GST     OKESA                   36.71N 96.13W
07/02/2017  M80 MPH          OSAGE              OK   TRAINED SPOTTER

            NEAR HWY 123 AND COUNTY ROAD 2495 WEST OF BARTLESVILLE.

&&

AEJ

Local storm report, Jul 2, 6:15 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
615 PM CDT SUN JUL 02 2017

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

0515 PM     TSTM WND DMG     TULSA                   36.13N 95.92W
07/02/2017                   TULSA              OK   BROADCAST MEDIA

            LARGE TREE DOWN IN MIDTOWN. TIME ESTIMATED BY RADAR.

&&

AEJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 3:26 PM CDT	Special Weather Statement	TSA	Creek, Okfuskee	64 min
Jul 2, 3:47 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	43 min
Jul 2, 4:02 PM CDT	Special Weather Statement	TSA	Osage, Pawnee	43 min
Jul 2, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	42 min
Jul 2, 4:31 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Osage, Tulsa	44 min
Jul 2, 4:39 PM CDT	Severe Thunderstorm Warning	TSA	Osage	22 min
Jul 2, 5:06 PM CDT	Special Weather Statement	TSA	Osage	39 min
Jul 2, 5:09 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Muskogee, Okmulgee, Osage, Rogers, Tulsa and 1 more	36 min
Jul 2, 5:12 PM CDT	Areal Flood Advisory	TSA	Tulsa	3 hr
Jul 2, 5:14 PM CDT	Special Weather Statement	TSA	McIntosh, Okmulgee, Pittsburg	46 min
Jul 2, 5:15 PM CDT	Severe Thunderstorm Warning	TSA	Osage	30 min
Jul 2, 5:24 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	51 min
Jul 2, 5:39 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Wagoner	36 min
Jul 2, 5:47 PM CDT	Areal Flood Advisory	TSA	Mayes, Rogers, Wagoner	4 hr
Jul 2, 5:59 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	31 min
Jul 2, 6:07 PM CDT	Areal Flood Advisory	TSA	Osage	3 hr
Jul 2, 6:22 PM CDT	Special Weather Statement	TSA	Nowata	23 min
Jul 2, 6:27 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Pittsburg	31 min
Jul 2, 6:30 PM CDT	Areal Flood Advisory	TSA	Washington	3 hr
Jul 2, 6:44 PM CDT	Special Weather Statement	TSA	Cherokee, Craig, Delaware, Mayes	46 min
Jul 2, 6:57 PM CDT	Special Weather Statement	TSA	Haskell, Muskogee, Sequoyah	48 min
Jul 2, 6:59 PM CDT	Areal Flood Advisory	TSA	Muskogee, Okmulgee, Wagoner	3 hr

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.