Alert archive / Oklahoma / Tornado Warnings in 2017

Tornado Warning 44, NWS Tulsa, OK

August 6, 2017Nowata County, Rogers County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Aug 6, 2017, 1:37 AM CDT for Nowata County, Rogers County, Oklahoma. It was in force for 23 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: Aug 6, 2017, 1:37 AM CDT (06:37 UTC)
Expired: Aug 6, 2017, 2:00 AM CDT
In force: 23 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Nowata County, OK, Rogers County, OK

The radar

The Tulsa radar (KINX), 39 km from the middle of the area, began a volume at 06:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 5, 7:04 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.6 hours before the alert went out and 172 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: 992 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 495 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

987 
WFUS54 KTSA 060637
TORTSA
OKC105-131-060700-
/O.NEW.KTSA.TO.W.0044.170806T0637Z-170806T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
137 AM CDT SUN AUG 6 2017

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northwestern Rogers County in northeastern Oklahoma...
  South central Nowata County in northeastern Oklahoma...

* Until 200 AM CDT
    
* At 137 AM CDT, a severe thunderstorm capable of producing a tornado
  was located near Talala, moving north at 25 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* Locations in or near the path include...
  Oologah...                        Talala...
  Watova...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3640 9563 3644 9580 3667 9571 3666 9556
TIME...MOT...LOC 0637Z 194DEG 24KT 3650 9568 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 5, 7:32 PM CDT	Severe Thunderstorm Warning	TSA	Osage	58 min
Aug 5, 8:24 PM CDT	Special Weather Statement	TSA	Osage	36 min
Aug 5, 8:52 PM CDT	Special Weather Statement	TSA	Osage	38 min
Aug 5, 9:07 PM CDT	Special Weather Statement	TSA	Kay	68 min
Aug 5, 9:20 PM CDT	Areal Flood Advisory	TSA	Osage	5 hr
Aug 5, 10:10 PM CDT	Severe Thunderstorm Warning	TSA	Osage	35 min
Aug 5, 10:42 PM CDT	Severe Thunderstorm Warning	TSA	Osage	33 min
Aug 5, 11:00 PM CDT	Special Weather Statement	TSA	Washington	30 min
Aug 5, 11:13 PM CDT	Special Weather Statement	TSA	Osage	32 min
Aug 5, 11:48 PM CDT	Flash Flood Warning	TSA	Osage	3 hr
Aug 5, 11:52 PM CDT	Special Weather Statement	TSA	Osage	38 min
Aug 5, 11:59 PM CDT	Special Weather Statement	TSA	Osage	31 min
Aug 6, 12:18 AM CDT	Special Weather Statement	TSA	Osage, Pawnee, Rogers	27 min
Aug 6, 12:40 AM CDT	Areal Flood Advisory	TSA	Osage, Washington	4 hr
Aug 6, 12:44 AM CDT	Special Weather Statement	TSA	Creek, Tulsa	61 min
Aug 6, 12:57 AM CDT	Areal Flood Advisory	TSA	Osage, Tulsa, Washington	4 hr
Aug 6, 1:08 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Nowata, Osage, Rogers, Tulsa, Wagoner and 1 more	67 min
Aug 6, 1:25 AM CDT	Tornado Warning	TSA	Rogers, Tulsa, Wagoner	35 min
Aug 6, 1:29 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Rogers, Tulsa, Wagoner	46 min
Aug 6, 1:42 AM CDT	Tornado Warning	TSA	Mayes, Rogers	21 min
Aug 6, 1:43 AM CDT	Tornado Warning	TSA	Mayes, Rogers, Wagoner	32 min
Aug 6, 1:56 AM CDT	Tornado Warning	TSA	Cherokee, Delaware, Mayes, Wagoner	17 min
Aug 6, 2:05 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Sequoyah and 1 more	40 min
Aug 6, 2:21 AM CDT	Flash Flood Warning	TSA	Creek, Tulsa	6 hr
Aug 6, 2:45 AM CDT	Special Weather Statement	TSA	Adair, Cherokee	45 min
Aug 6, 2:53 AM CDT	Areal Flood Advisory	TSA	Muskogee, Okmulgee, Wagoner	4 hr
Aug 6, 3:21 AM CDT	Areal Flood Warning	TSA	Nowata, Osage, Washington	6 hr
Aug 6, 3:24 AM CDT	Special Weather Statement	TSA	Sequoyah	66 min
Aug 6, 3:45 AM CDT	Special Weather Statement	TSA	Haskell, McIntosh	60 min
Aug 6, 4:50 AM CDT	Special Weather Statement	TSA	Haskell, Latimer, LeFlore	40 min
Aug 6, 5:03 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, McIntosh, Muskogee, Okmulgee and 2 more	3 hr
Aug 6, 5:27 AM CDT	Special Weather Statement	TSA	LeFlore	48 min
Aug 6, 8:14 AM CDT	Areal Flood Warning	TSA	Creek, Tulsa	24 hr
Aug 6, 8:25 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore	3 hr
Aug 6, 8:32 AM CDT	Flash Flood Warning	TSA	Haskell, Latimer, LeFlore	4 hr
Aug 6, 8:46 AM CDT	Areal Flood Advisory	TSA	Choctaw, Latimer, LeFlore, Pittsburg, Pushmataha	4 hr

Nearby

Tornado Warnings in Oklahoma, 2017 Every tornado warning in 2017 Tornadoes 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.