Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 99, NWS Tulsa, OK

March 12, 2006Ottawa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 12, 2006, 8:33 PM CST for Ottawa County, Oklahoma. It was in force for 57 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, 8:33 PM CST (02:33 UTC)
Expired: Mar 12, 2006, 9:30 PM CST
In force: 57 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Ottawa County, OK

The radar

The Tulsa radar (KINX), 103 km from the middle of the area, began a volume at 02:33 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 severe thunderstorm 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, 2.6 hours before the alert went out and 91 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 
WUUS54 KTSA 130233
SVRTSA
OKC115-130330-
/O.NEW.KTSA.SV.W.0099.060313T0233Z-060313T0330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
833 PM CST SUN MAR 12 2006

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OTTAWA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 930 PM CST

* AT 829 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
  DAMAGING WINDS TO 70 MPH.  THIS STORM WAS LOCATED 10 MILES WEST OF
  AFTON...MOVING NORTHEAST AT 65 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...AFTON...
  NARCISSA...MIAMI...COMMERCE...PICHER AND QUAPAW.

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

THIS STORM WILL BE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
WINDS. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE
LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

LAT...LON 3693 9462 3668 9494 3668 9500 3694 9500
      3699 9493 3699 9462

$$

1 follow-up statement

000 
WWUS54 KTSA 130257
SVSTSA

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

OKC115-130330-
/O.CON.KTSA.SV.W.0099.000000T0000Z-060313T0330Z/
OTTAWA OK-
856 PM CST SUN MAR 12 2006

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 930 PM CST FOR
OTTAWA COUNTY...

AT 854 PM CST...A SEVERE THUNDERSTORM WAS REPORTED QUARTER SIZE HAIL
AND DAMAGING WINDS TO 70 MPH.  THIS STORM WAS LOCATED 3 MILES WEST OF
FAIRLAND...MOVING NORTHEAST AT 60 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MIAMI...
COMMERCE...OTTAWA...CARDIN...WYANDOTTE...PICHER...QUAPAW AND PEORIA

THIS STORM WAS ALSO SHOWING STRONG ROTATION THAT MAY MOVE INTO
SOUTHERN OTTAWA COUNTY.  

THIS STORM WILL BE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING
WINDS. IF NO UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE
LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.

LAT...LON 3693 9462 3668 9463 3668 9500 3694 9500
      3699 9493 3699 9462

$$

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Mar 12, 8:17 PM CST, 16 minutes earlier.

Area forecast discussion, Mar 12, 8:17 PM CST, 16 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 28 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, 7:39 PM CST, 54 minutes before

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

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

0736 PM     HAIL             TULSA                   36.13N 95.92W
03/12/2006  E1.00 INCH       TULSA              OK   PUBLIC

            29TH AND PEORIA

&&

JDS

Local storm report, Mar 12, 8:00 PM CST, 33 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, 30 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, 24 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, 21 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, 16 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

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, 8:40 PM CST	Tornado Warning	TSA	Delaware	50 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

Severe Thunderstorm Warnings in Oklahoma, 2006 Every severe thunderstorm warning 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.