Alert archive / Oklahoma / Tornado Warnings in 2007

Tornado Warning 19, NWS Tulsa, OK

October 17, 2007Cherokee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Oct 17, 2007, 9:16 PM CDT for Cherokee County, Oklahoma. It was in force for 29 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: Oct 17, 2007, 9:16 PM CDT (02:16 UTC)
Expired: Oct 17, 2007, 9:45 PM CDT
In force: 29 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Cherokee County, OK

The radar

The Tulsa radar (KINX), 69 km from the middle of the area, began a volume at 02:17 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
Oct 17, 9:17 PM CDT	TSTM WND DMG	4 Ssw Cookson, OK	TREES AND LARGE TREE LIMBS DOWN NEAR SNAKE CREEK WILDERNESS LODGE

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Oct 17, 4:31 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.3 hours before the alert went out and 161 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: 1262 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 618 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 266 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 8.3

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 180216
TORTSA
OKC021-180245-
/O.NEW.KTSA.TO.W.0019.071018T0216Z-071018T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
916 PM CDT WED OCT 17 2007

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 945 PM CDT

* AT 913 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES
  NORTHWEST OF COOKSON...MOVING NORTHEAST AT 70 MPH.

* THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY...

IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS

LAT...LON 3587 9503 3589 9481 3571 9481 3565 9496
      3578 9511
TIME...MOT...LOC 0216Z 232DEG 61KT 3579 9493

$$

1 follow-up statement

000 
WWUS54 KTSA 180243 RRA
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
943 PM CDT WED OCT 17 2007

OKC021-180253-
/O.EXP.KTSA.TO.W.0019.000000T0000Z-071018T0245Z/
CHEROKEE OK-
943 PM CDT WED OCT 17 2007

...THE TORNADO WARNING FOR SOUTHEASTERN CHEROKEE COUNTY EXPIRES AT
945 PM CDT...

THE THUNDERSTORM HAS MOVED OUT OF THE WARNED AREA AND WEAKENED BELOW
SEVERE LIMITS...THEREFORE THE TORNADO WARNING WILL BE ALLOWED TO
EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT.

LAT...LON 3587 9503 3589 9481 3571 9481 3565 9496
      3578 9511
TIME...MOT...LOC 0243Z 232DEG 61KT 3607 9448

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 17, 7:02 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	73 min
Oct 17, 7:23 PM CDT	Severe Thunderstorm Warning	TSA	Rogers	67 min
Oct 17, 7:25 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Wagoner	65 min
Oct 17, 7:29 PM CDT	Tornado Warning	TSA	Nowata, Washington	61 min
Oct 17, 7:47 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes	58 min
Oct 17, 8:06 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Rogers	39 min
Oct 17, 8:10 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	80 min
Oct 17, 8:19 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	56 min
Oct 17, 8:29 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Pittsburg	41 min
Oct 17, 8:31 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Muskogee, Wagoner	59 min
Oct 17, 8:46 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	59 min
Oct 17, 9:10 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	55 min
Oct 17, 10:01 PM CDT	Special Weather Statement	TSA	Sequoyah	44 min
Oct 17, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	47 min
Oct 17, 10:31 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	44 min

Nearby

Tornado Warnings in Oklahoma, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.