Alert archive / Oklahoma / Tornado Warnings in 2015

Tornado Warning 71, NWS Tulsa, OK

July 9, 2015Cherokee County, Muskogee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Jul 9, 2015, 4:44 PM CDT for Cherokee County, Muskogee County, Oklahoma. It was in force for 12 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 9, 2015, 4:44 PM CDT (21:44 UTC)
Expired: Jul 9, 2015, 4:56 PM CDT
In force: 12 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Cherokee County, OK, Muskogee County, OK

The radar

The Tulsa radar (KINX), 60 km from the middle of the area, began a volume at 21:45 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 12:00Z, 9.7 hours before the alert went out and 171 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: 111 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 515 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

659 
WFUS54 KTSA 092144
TORTSA
OKC021-101-092215-
/O.NEW.KTSA.TO.W.0071.150709T2144Z-150709T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
444 PM CDT THU JUL 9 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...

* UNTIL 515 PM CDT
    
* AT 444 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES EAST OF FORT GIBSON...MOVING EAST 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. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  NORTHEASTERN MUSKOGEE AND SOUTHERN CHEROKEE COUNTIES.

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 3576 9525 3585 9521 3585 9490 3570 9495
TIME...MOT...LOC 2144Z 276DEG 23KT 3580 9516 

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

$$

1 follow-up statement

380 
WWUS54 KTSA 092156
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
456 PM CDT THU JUL 9 2015

OKC021-101-092205-
/O.CAN.KTSA.TO.W.0071.000000T0000Z-150709T2215Z/
MUSKOGEE OK-CHEROKEE OK-
456 PM CDT THU JUL 9 2015

...THE TORNADO WARNING FOR NORTHEASTERN MUSKOGEE AND SOUTHERN
CHEROKEE COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED...AND NO LONGER 
APPEARS CAPABLE OF PRODUCING A TORNADO. THEREFORE THE WARNING HAS 
BEEN CANCELLED.  HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL 
LIKELY WITH THIS THUNDERSTORM.

LAT...LON 3576 9525 3585 9521 3585 9490 3570 9495
TIME...MOT...LOC 2153Z 276DEG 23KT 3579 9507 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 12:26 AM CDT	Areal Flood Advisory	TSA	Adair, Sequoyah	3 hr
Jul 9, 3:43 AM CDT	Flash Flood Watch	TSA	Cherokee, Craig, Creek, Delaware, McIntosh, Mayes and 10 more	15 hr
Jul 9, 6:37 AM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	4 hr
Jul 9, 8:04 AM CDT	River Flood Warning	TSA	Adair	39 hr
Jul 9, 8:40 AM CDT	River Flood Advisory	TSA	Cherokee, Delaware	34 hr
Jul 9, 10:20 AM CDT	Areal Flood Advisory	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Wagoner	4 hr
Jul 9, 10:59 AM CDT	Special Weather Statement	TSA	Wagoner	46 min
Jul 9, 11:13 AM CDT	Areal Flood Advisory	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	4 hr
Jul 9, 11:32 AM CDT	Areal Flood Advisory	TSA	Adair, Cherokee, Craig, Delaware, Mayes, Muskogee and 3 more	4 hr
Jul 9, 11:46 AM CDT	Flash Flood Warning	TSA	Craig, Delaware, Mayes	4 hr
Jul 9, 12:19 PM CDT	Special Weather Statement	TSA	Delaware	41 min
Jul 9, 12:28 PM CDT	Flash Flood Warning	TSA	Craig, Delaware, Ottawa	3 hr
Jul 9, 12:43 PM CDT	Special Weather Statement	TSA	Wagoner	47 min
Jul 9, 1:26 PM CDT	Special Weather Statement	TSA	Craig, Nowata, Rogers	49 min
Jul 9, 1:42 PM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	4 hr
Jul 9, 2:32 PM CDT	Areal Flood Advisory	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Wagoner and 1 more	3 hr
Jul 9, 2:37 PM CDT	Areal Flood Advisory	TSA	Craig, Nowata, Ottawa, Rogers, Washington	3 hr
Jul 9, 2:47 PM CDT	Special Weather Statement	TSA	Creek	43 min
Jul 9, 3:26 PM CDT	Special Weather Statement	TSA	Okmulgee	49 min
Jul 9, 3:28 PM CDT	Areal Flood Warning	TSA	Craig, Delaware, Mayes, Ottawa, Rogers	12 hr
Jul 9, 3:48 PM CDT	Special Weather Statement	TSA	Wagoner	42 min
Jul 9, 3:56 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Wagoner	36 min
Jul 9, 4:12 PM CDT	Special Weather Statement	TSA	Tulsa	48 min
Jul 9, 4:15 PM CDT	Special Weather Statement	TSA	Muskogee	45 min
Jul 9, 4:26 PM CDT	Special Weather Statement	TSA	Cherokee, Delaware, Mayes	49 min
Jul 9, 4:40 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Wagoner	37 min
Jul 9, 5:06 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	39 min
Jul 9, 5:09 PM CDT	Special Weather Statement	TSA	McIntosh	51 min
Jul 9, 5:15 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware	30 min
Jul 9, 5:33 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	42 min
Jul 9, 6:23 PM CDT	Special Weather Statement	TSA	Adair	52 min

Nearby

Tornado Warnings in Oklahoma, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.