Alert archive / Oklahoma / Tornado Warnings in 2006

Tornado Warning 15, NWS Tulsa, OK

March 12, 2006Delaware County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Mar 12, 2006, 8:40 PM CST for Delaware County, Oklahoma. It was in force for 50 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: Mar 12, 2006, 8:40 PM CST (02:40 UTC)
Expired: Mar 12, 2006, 9:30 PM CST
In force: 50 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Delaware County, OK

The radar

The Tulsa radar (KINX), 78 km from the middle of the area, began a volume at 02:42 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 12, 12:46 PM CST	Tornado Watch	SPC	9 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 101 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: 1549 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 13.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KTSA 130239
TORTSA
OKC041-130330-
/O.NEW.KTSA.TO.W.0015.060313T0240Z-060313T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
840 PM CST SUN MAR 12 2006

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  DELAWARE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 930 PM CST

* AT 838 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS STORM WAS LOCATED 6
  MILES NORTHWEST OF DISNEY...MOVING EAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...DISNEY...
  CLEORA...BERNICE AND GROVE.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKE COVER NOW IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE

LAT...LON 3667 9502 3642 9502 3645 9460 3668 9462

$$

3 follow-up statements

000 
WWUS54 KTSA 130244
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
844 PM CST SUN MAR 12 2006

OKC041-130330-
/O.CON.KTSA.TO.W.0015.000000T0000Z-060313T0330Z/
DELAWARE OK-
844 PM CST SUN MAR 12 2006

...A TORNADO WARNING CONTINUES UNTIL 930 PM CST FOR DELAWARE
COUNTY...

AT 842 PM CST...RADAR CONTINUED TO DETECT A DANGEROUS THUNDERSTORM
WITH VERY STRONG LOW LEVEL ROTATION...INDICATING A TORNADO IS
OCCURRING OR COULD FORM AT ANY TIME.  THIS STORM WAS LOCATED 3 MILES
SOUTHWEST OF CLEORA...MOVING EAST AT 40 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CLEORA...
BERNICE...ZENA AND GROVE.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKE COVER NOW IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE

LAT...LON 3667 9502 3642 9502 3645 9460 3668 9462

$$

000 
WWUS54 KTSA 130258
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
858 PM CST SUN MAR 12 2006

OKC041-130330-
/O.CON.KTSA.TO.W.0015.000000T0000Z-060313T0330Z/
DELAWARE OK-
858 PM CST SUN MAR 12 2006

...A TORNADO WARNING CONTINUES UNTIL 930 PM CST FOR DELAWARE
COUNTY...

AT 854 PM CST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION.  THIS STORM WAS LOCATED 4
MILES EAST OF BERNICE...MOVING EAST AT 50 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MAYSVILLE.

ANOTHER POTENTIALLY TORNADIC STORM MAY APPROACH SOUTHERN DELAWARE
COUNTY BY 930 PM.

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKE COVER NOW IF YOU
WAIT UNTIL YOU SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A
SAFE PLACE

LAT...LON 3667 9502 3619 9501 3618 9456 3668 9462

$$

000 
WWUS54 KTSA 130319
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
918 PM CST SUN MAR 12 2006

OKC041-130330-
/O.CON.KTSA.TO.W.0015.000000T0000Z-060313T0330Z/
DELAWARE OK-
918 PM CST SUN MAR 12 2006

...A TORNADO WARNING CONTINUES UNTIL 930 PM CST FOR DELAWARE
COUNTY...

AT 916 PM CST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO TRACK A
DANGEROUS THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES.  THIS
STORM WAS LOCATED 3 MILES SOUTH OF LEACH...MOVING EAST AT 40 MPH.

THIS TORNADO WILL BE CROSSING CHEROKEE TURNPIKE / HIGHWAY 412 NEAR 
LEACH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...TWIN OAKS...
KANSAS...JAY...MAYSVILLE AND COLCORD.

THIS IS A DANGEROUS STORM WITH A HISTORY OF PRODUCING TORNADOES 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 3641 9500 3618 9502 3618 9456 3658 9462

$$

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Mar 12, 8:17 PM CST, 23 minutes earlier.

Area forecast discussion, Mar 12, 8:17 PM CST, 23 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
817 PM CST SUN MAR 12 2006

.MESOSCALE UPDATE...
TWO SUPERCELLS CONTINUE TO TRACK ACROSS NORTHEAST OKLAHOMA...ONE EXITING
ROGERS COUNTY...THE OTHER IN WESTERN WAGONER COUNTY.  BOTH STORMS
HAVE BEEN LOW-PRECIP TYPE STORMS AND HAVE BEEN UNDERGOING SPLITS AND THE
NORTHERN SUPERCELL HAS BEEN IMPACTED BY PREVIOUS LEFT SPLIT CELLS.
THE STORMS ARE MOVING INTO THE 850 MB MOISTURE AXIS AND SEEM TO BE
TRYING TO TREND TO A MORE CLASSIC LOOK.  WIND PROFILES REMAIN VERY
FAVORABLE FOR TORNADIC SUPERCELLS AHEAD OF THE STORMS.

&&

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

Hazardous weather outlook, Mar 12, 12:05 PM CST, 8 hours 35 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
1205 PM CST SUN MAR 12 2006

ARZ001-002-010-011-019-020-029-OKZ049-053>076-131100-
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-
1205 PM CST SUN MAR 12 2006

...A SEVERE WEATHER OUTBREAK IS EXPECTED 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.
TORNADO.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...NORTHWEST AND WEST CENTRAL ARKANSAS.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...THIS AFTERNOON.

	AREA AT GREATEST RISK...NORTHWEST AND WEST CENTRAL ARKANSAS.

FIRE WEATHER DANGER.
	RISK...SIGNIFICANT...SPREADINDEX=64.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...LATE THIS MORNING.

	AREA AT GREATEST RISK...NORTHEAST OKLAHOMA.

DISCUSSION...
A DRY LINE WAS LOCATED FROM EASTERN KANSAS INTO CENTRAL OKLAHOMA.
STRONG THUNDERSTORMS WERE ALREADY DEVELOPING ALONG THE BOUNDARY
EARLY THIS AFTERNOON. WITH CAPES ON THE ORDER OF 2500 J/KG AND
HELICITIES IN THE RANGE OF 200 M2/S2...SUPERCELLS WITH THE POTENTIAL
TO PRODUCE LARGE HAIL AND TORNADOES ARE EXPECTED TO MOVE ACROSS MUCH
OF THE AREA THIS AFTERNOON AND THIS EVENING.  ONCE STORMS
DEVELOP...THEY WILL RACE TO THE NORTHEAST AT 40 TO 50 MILES AN HOUR.

GIVEN THE WARM TEMPERATURES...STRONG SOUTH WINDS AND DRY
VEGETATION FIRE WEATHER WILL ALSO BE A CONCERN TODAY. THE MOST
DANGEROUS AREA FOR FIRES WILL BE NORTHEAST OKLAHOMA.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
MONDAY...VERY HIGH FIRE WEATHER POTENTIAL.
TUESDAY...NO HAZARDS.
WEDNESDAY...THUNDERSTORM POTENTIAL.
THURSDAY...NO HAZARDS.
FRIDAY...NO HAZARDS.
SATURDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
A COLD FRONT WILL HAVE PASSED THROUGH THE AREA BY MONDAY MORNING.
HIGH PRESSURE WILL PUSH INTO THE AREA AND REMAIN AT LEAST THROUGH
THE MIDDLE OF THE UPCOMING WEEK. FIRE WEATHER WILL REMAIN A
CONCERN WITH THE MOST LIKELY BAD DAY BEING MONDAY WITH THE NORTH
WINDS AND LOWER HUMIDITIES FOUND BEHIND THE FRONT.

THUNDERSTORMS RETURN TO THE FORECAST DUE TO RETURN FLOW OF WARM
AND MOIST AIR. THE THUNDERSTORMS ENTER THE FORECAST AGAIN NEXT
WEEKEND.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL TABULAR AND GRAPHICAL
INFORMATION.

In the hours before

Local storm report, Mar 12, 8:00 PM CST, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
800 PM CST SUN MAR 12 2006

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

0747 PM     HAIL             3 E OWASSO              36.27N 95.80W
03/12/2006  E1.00 INCH       ROGERS             OK   PUBLIC

&&

JDS

Local storm report, Mar 12, 8:03 PM CST, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
803 PM CST SUN MAR 12 2006

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

0758 PM     HAIL             5 W CLAREMORE           36.31N 95.71W
03/12/2006  E0.75 INCH       ROGERS             OK   PUBLIC

&&

SFP

Local storm report, Mar 12, 8:09 PM CST, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
809 PM CST SUN MAR 12 2006

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

0807 PM     HAIL             CHELSEA                 36.54N 95.43W
03/12/2006  E0.75 INCH       ROGERS             OK   AMATEUR RADIO

&&

SFP

Local storm report, Mar 12, 8:12 PM CST, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
812 PM CST SUN MAR 12 2006

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

0711 PM     HAIL             CHELSEA                 36.54N 95.43W
03/12/2006  M1.00 INCH       ROGERS             OK   AMATEUR RADIO

&&

JDS

Local storm report, Mar 12, 8:17 PM CST, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
817 PM CST SUN MAR 12 2006

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

0715 PM     TSTM WND GST     5 W PRYOR               36.31N 95.41W
03/12/2006  E60 MPH          MAYES              OK   EMERGENCY MNGR

&&

JDS

Local storm report, Mar 12, 8:36 PM CST, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
836 PM CST SUN MAR 12 2006

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

0830 PM     HAIL             VINITA                  36.64N 95.15W
03/12/2006  M1.00 INCH       CRAIG              OK   NWS EMPLOYEE

&&

JDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 6:24 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	36 min
Mar 12, 6:39 PM CST	Severe Thunderstorm Warning	TSA	Okfuskee	51 min
Mar 12, 6:47 PM CST	Severe Thunderstorm Warning	TSA	Creek, Tulsa	58 min
Mar 12, 6:55 PM CST	Severe Thunderstorm Warning	TSA	Nowata, Washington	50 min
Mar 12, 6:56 PM CST	Severe Thunderstorm Warning	TSA	Osage	49 min
Mar 12, 7:06 PM CST	Tornado Warning	TSA	Nowata	24 min
Mar 12, 7:15 PM CST	Severe Thunderstorm Warning	TSA	Rogers	60 min
Mar 12, 7:16 PM CST	Severe Thunderstorm Warning	TSA	Okmulgee	59 min
Mar 12, 7:24 PM CST	Tornado Warning	TSA	Nowata	36 min
Mar 12, 7:35 PM CST	Severe Thunderstorm Warning	TSA	Wagoner	70 min
Mar 12, 7:39 PM CST	Severe Thunderstorm Warning	TSA	Tulsa	35 min
Mar 12, 7:41 PM CST	Severe Thunderstorm Warning	TSA	Creek	12 min
Mar 12, 7:46 PM CST	Severe Thunderstorm Warning	TSA	Craig	59 min
Mar 12, 7:57 PM CST	Severe Thunderstorm Warning	TSA	Mayes	63 min
Mar 12, 8:07 PM CST	Severe Thunderstorm Warning	TSA	Rogers	53 min
Mar 12, 8:21 PM CST	Tornado Warning	TSA	Wagoner	44 min
Mar 12, 8:21 PM CST	Tornado Warning	TSA	Craig, Mayes	24 min
Mar 12, 8:27 PM CST	Tornado Warning	TSA	Rogers	22 min
Mar 12, 8:33 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	57 min
Mar 12, 8:41 PM CST	Tornado Warning	TSA	Craig	14 min
Mar 12, 8:41 PM CST	Tornado Warning	TSA	Mayes	49 min
Mar 12, 8:46 PM CST	Tornado Warning	TSA	Cherokee	59 min
Mar 12, 8:59 PM CST	Tornado Warning	TSA	Ottawa	22 min
Mar 12, 9:15 PM CST	Tornado Warning	TSA	Adair	29 min
Mar 12, 9:22 PM CST	Tornado Warning	TSA	Delaware	33 min
Mar 12, 10:32 PM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata	44 min
Mar 12, 10:50 PM CST	Severe Thunderstorm Warning	TSA	Ottawa	39 min
Mar 12, 11:04 PM CST	Severe Thunderstorm Warning	TSA	Mayes, Rogers	56 min
Mar 12, 11:26 PM CST	Severe Thunderstorm Warning	TSA	Craig	34 min
Mar 12, 11:31 PM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	59 min
Mar 12, 11:57 PM CST	Severe Thunderstorm Warning	TSA	Adair	63 min
Mar 13, 12:21 AM CST	Severe Thunderstorm Warning	TSA	Haskell	54 min
Mar 13, 12:23 AM CST	Severe Thunderstorm Warning	TSA	Muskogee	16 min
Mar 13, 12:34 AM CST	Severe Thunderstorm Warning	TSA	Sequoyah	71 min
Mar 13, 12:51 AM CST	Severe Thunderstorm Warning	TSA	Adair	27 min
Mar 13, 12:54 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	81 min
Mar 13, 12:58 AM CST	Severe Thunderstorm Warning	TSA	Pushmataha	77 min
Mar 13, 2:13 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	31 min

Nearby

Tornado Warnings in Oklahoma, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.