Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 93, NWS Tulsa, OK

March 12, 2006Wagoner County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 12, 2006, 7:35 PM CST for Wagoner County, Oklahoma. It was in force for 70 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: Mar 12, 2006, 7:35 PM CST (01:35 UTC)
Expired: Mar 12, 2006, 8:45 PM CST
In force: 70 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Wagoner County, OK

The radar

The Tulsa radar (KINX), 17 km from the middle of the area, began a volume at 01:38 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
Mar 12, 8:12 PM CST	HAIL 0.75	Coweta, OK

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 30 minutes after it went out.

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

Lamont, OK (KLMN), launched 00:00Z, 1.6 hours before the alert went out and 170 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: 4682 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 229 m²/s²
0-3 km storm-relative helicity: 299 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 130135
SVRTSA
OKC145-130245-
/O.NEW.KTSA.SV.W.0093.060313T0135Z-060313T0245Z/

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

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

* UNTIL 845 PM CST

* AT 730 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WINDS
  TO 60 MPH.  THIS STORM WAS LOCATED 13 MILES WEST OF ONETA...MOVING
  NORTHEAST AT 50 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...COWETA AND
  ONETA.

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

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 3616 9580 3587 9578 3598 9556 3617 9559

$$

1 follow-up statement

000 
WWUS54 KTSA 130204
SVSTSA

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

OKC145-130245-
/O.CON.KTSA.SV.W.0093.000000T0000Z-060313T0245Z/
WAGONER OK-
804 PM CST SUN MAR 12 2006

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 845 PM CST FOR
WAGONER COUNTY...

AT 759 PM CST...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL AND WINDS
TO 60 MPH.  THIS STORM WAS LOCATED 3 MILES SOUTHWEST OF STONEBLUFF...
MOVING EAST AT 45 MPH.

SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ONETA...
COWETA...REDBIRD...PORTER...WAGONER AND OKAY.

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

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 3607 9576 3586 9581 3584 9526 3608 9523

$$

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, 7:19 PM CST, 16 minutes earlier.

Area forecast discussion, Mar 12, 7:19 PM CST, 16 minutes before

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

.MESOSCALE UPDATE...
THE SUPERCELL OVER OKFUSKEE COUNTY IS NOW SPLITTING.  THE LEFT SPLIT
WILL CONTINUE ON A MORE NORTHERLY PATH AND DEVELOP AN ANTICYCLONIC
CIRCULATION AND BE A VERY LARGE HAIL THREAT INTO CREEK COUNTY OVER
THE NEXT 45 MINUTES.  THE RIGHT SPLIT WILL FAVOR A CYCLONIC
CIRCULATION AND A TORNADO THREAT AS IT MOVES TOWARD THE TULSA METRO
AREA.

THE COMPLEX SUPERCELL IN THE SAND SPRINGS AREA SHOULD ALSO GO THROUGH
THIS SPLIT PROCESS WITH A TORNADO THREAT FROM THE RIGHT SPLIT STORM
ACROSS TULSA AND ROGERS COUNTIES.

ALL INTERESTS IN TULSA...CREEK...ROGERS...OKFUSKEE...OKMULGEE AND
WAGONER COUNTIES SHOULD MOVE TO A HIGH STATE OF READINESS.

THESE STORMS ARE EXHIBITING LOW-PRECIPITATION CHARACTERISTICS...MEANING
THE CIRCULATINS WILL BE DISPLACED FROM THE HIGH REFLECTIVITY AT TIMES
AND IT CAN BE A PROLIFIC HAIL PRODUCER.  AN INITIAL NEGATIVE TO
TORNADO PRODUCTION WILL CONTINUE TO BE RATHER LARGE SURFACE TEMPERATURE
AND DEW POINT SPREADS...BUT THIS PARAMETER MAY WORSEN WITH TIME AS THE CELL
MOVES TOWARD HIGHER DEW POINTS AND TEMPERATURES COOL A FEW DEGREES.

&&

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

Hazardous weather outlook, Mar 12, 12:05 PM CST, 7 hours 30 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, 6:50 PM CST, 45 minutes before

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

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

0626 PM     HAIL             COPAN                   36.90N 95.93W
03/12/2006  E1.75 INCH       WASHINGTON         OK   PUBLIC

&&

JDS

Local storm report, Mar 12, 7:00 PM CST, 35 minutes before

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

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

0659 PM     HAIL             2 E BARTLESVILLE        36.75N 95.94W
03/12/2006  E1.75 INCH       WASHINGTON         OK   EMERGENCY MNGR

&&

SFP

Local storm report, Mar 12, 7:01 PM CST, 34 minutes before

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

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

0657 PM     HAIL             SAND SPRINGS            36.14N 96.11W
03/12/2006  E0.75 INCH       TULSA              OK   AMATEUR RADIO

&&

SFP

Local storm report, Mar 12, 7:25 PM CST, 10 minutes before

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

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

0723 PM     HAIL             SPERRY                  36.30N 95.99W
03/12/2006  E0.75 INCH       TULSA              OK   AMATEUR RADIO

0724 PM     HAIL             KIEFER                  35.94N 96.07W
03/12/2006  E0.75 INCH       CREEK              OK   PUBLIC

&&

SFP

Local storm report, Mar 12, 7:30 PM CST, 5 minutes before

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

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

0728 PM     HAIL             SAPULPA                 36.00N 96.11W
03/12/2006  M1.50 INCH       CREEK              OK   EMERGENCY MNGR

&&

JDS

Local storm report, Mar 12, 7:33 PM CST, 2 minutes before

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

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

0733 PM     HAIL             TULSA                   36.13N 95.92W
03/12/2006  M0.75 INCH       TULSA              OK   NWS EMPLOYEE

            68TH AND RIVERSIDE DRIVE

&&

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, 7:39 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, 8:40 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.