Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 137, NWS Tulsa, OK

July 17, 2021Tulsa County, Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 17, 2021, 3:35 PM CDT for Tulsa County, Wagoner County, Oklahoma. It was in force for 25 min. 1 report 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 17, 2021, 3:35 PM CDT (20:35 UTC)
Expired: Jul 17, 2021, 4:00 PM CDT
In force: 25 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Tulsa County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 13 km from the middle of the area, began a volume at 20:36 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 17, 3:48 PM CDT	TSTM WND DMG	Oneta, OK	STRONG THUNDERSTORM WIND BLEW DOWN SEVERAL POWER POLES ON HIGHWAY 51 AND 239TH W AVE.

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

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 8.6 hours before the alert went out and 188 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: 1277 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 784 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: -1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

203 
WUUS54 KTSA 172035
SVRTSA
OKC143-145-172100-
/O.NEW.KTSA.SV.W.0137.210717T2035Z-210717T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
335 PM CDT Sat Jul 17 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Northwestern Wagoner County in northeastern Oklahoma...
  East central Tulsa County in northeastern Oklahoma...

* Until 400 PM CDT.

* At 335 PM CDT, a severe thunderstorm was located over Oneta, moving
  east at 5 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations in or near the path include...
  Tulsa...                          Broken Arrow...
  Coweta...                         Oneta...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3612 9557 3609 9555 3608 9556 3608 9558
      3607 9555 3589 9561 3596 9586 3616 9575
      3616 9573
TIME...MOT...LOC 2035Z 273DEG 6KT 3604 9571 

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

69

1 follow-up statement

868 
WWUS54 KTSA 172101
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
401 PM CDT Sat Jul 17 2021

OKC143-145-172110-
/O.EXP.KTSA.SV.W.0137.000000T0000Z-210717T2100Z/
Wagoner OK-Tulsa OK-
401 PM CDT Sat Jul 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WAGONER AND EAST
CENTRAL TULSA COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However gusty
winds to 50 mph are still possible with this thunderstorm.

LAT...LON 3612 9557 3609 9555 3608 9556 3608 9558
      3607 9555 3589 9561 3596 9586 3616 9575
      3616 9573
TIME...MOT...LOC 2100Z 273DEG 6KT 3604 9566 

$$

69

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 9:44 PM CDT	Special Weather Statement	TSA	Osage	46 min
Jul 17, 12:29 AM CDT	Areal Flood Advisory	TSA	Craig, Delaware, Mayes	4 hr
Jul 17, 1:02 AM CDT	Flash Flood Warning	TSA	Delaware	3 hr
Jul 17, 1:10 AM CDT	Areal Flood Advisory	TSA	Osage	3 hr
Jul 17, 1:25 AM CDT	Special Weather Statement	TSA	Osage	35 min
Jul 17, 1:49 AM CDT	Special Weather Statement	TSA	Mayes	26 min
Jul 17, 2:09 AM CDT	Areal Flood Advisory	TSA	Delaware, Mayes	3 hr
Jul 17, 2:20 AM CDT	Flash Flood Warning	TSA	Delaware, Mayes	3 hr
Jul 17, 2:22 AM CDT	Special Weather Statement	TSA	Mayes	23 min
Jul 17, 2:49 AM CDT	Special Weather Statement	TSA	Mayes	26 min
Jul 17, 3:16 AM CDT	Special Weather Statement	TSA	Mayes	29 min
Jul 17, 3:18 AM CDT	Flash Flood Watch	TSA	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 10 more	39 hr
Jul 17, 3:33 AM CDT	Areal Flood Advisory	TSA	Mayes	117 min
Jul 17, 3:42 AM CDT	Special Weather Statement	TSA	Mayes	18 min
Jul 17, 4:10 AM CDT	Areal Flood Advisory	TSA	Craig, Mayes, Nowata, Rogers	3 hr
Jul 17, 4:28 AM CDT	Special Weather Statement	TSA	Craig	32 min
Jul 17, 4:40 AM CDT	Flash Flood Warning	TSA	Craig	2 hr
Jul 17, 5:32 AM CDT	Areal Flood Warning	TSA	Delaware, Mayes	3 hr
Jul 17, 5:41 AM CDT	Areal Flood Advisory	TSA	Nowata, Rogers	3 hr
Jul 17, 6:12 AM CDT	Flash Flood Warning	TSA	Rogers	3 hr
Jul 17, 6:17 AM CDT	Areal Flood Advisory	TSA	Tulsa, Washington	118 min
Jul 17, 6:49 AM CDT	Areal Flood Warning	TSA	Craig	3 hr
Jul 17, 7:17 AM CDT	Areal Flood Advisory	TSA	Washington	118 min
Jul 17, 7:41 AM CDT	Flash Flood Warning	TSA	Washington	3 hr
Jul 17, 9:09 AM CDT	Areal Flood Warning	TSA	Rogers	3 hr
Jul 17, 10:44 AM CDT	Areal Flood Warning	TSA	Washington	2 hr
Jul 17, 3:10 PM CDT	Special Weather Statement	TSA	Tulsa	35 min
Jul 17, 3:15 PM CDT	Areal Flood Advisory	TSA	Tulsa, Wagoner	2 hr
Jul 17, 4:03 PM CDT	Special Weather Statement	TSA	Wagoner	42 min
Jul 17, 4:49 PM CDT	Special Weather Statement	TSA	Muskogee	41 min
Jul 17, 4:51 PM CDT	Special Weather Statement	TSA	Creek	39 min
Jul 17, 4:51 PM CDT	Special Weather Statement	TSA	Creek	39 min
Jul 17, 5:04 PM CDT	Special Weather Statement	TSA	LeFlore	41 min
Jul 17, 5:20 PM CDT	Areal Flood Advisory	TSA	Latimer, Pittsburg	115 min
Jul 17, 5:55 PM CDT	Special Weather Statement	TSA	Cherokee	50 min
Jul 17, 6:15 PM CDT	Areal Flood Advisory	TSA	Adair, Delaware	2 hr
Jul 17, 6:48 PM CDT	Special Weather Statement	TSA	Adair	42 min
Jul 17, 6:58 PM CDT	Special Weather Statement	TSA	Osage	62 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021 Every severe thunderstorm warning in 2021

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.