Alert archive / Oklahoma / Tornado Warnings in 2013

Tornado Warning 4, NWS Tulsa, OK

April 17, 20135 counties in Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 17, 2013, 11:44 PM CDT for 5 counties in Oklahoma. It was in force for 31 min. 6 reports 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: Apr 17, 2013, 11:44 PM CDT (04:44 UTC)
Expired: Apr 18, 2013, 12:15 AM CDT
In force: 31 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Creek County, OK, Okmulgee County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 32 km from the middle of the area, began a volume at 04:45 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.

What was reported inside it

Time	Report	Where	Remark
Apr 17, 11:50 PM CDT	TORNADO	2 Nw Liberty, OK	RATED EF0 WITH WINDS BETWEEN 65-75 MPH. PATH LENGTH 0.5 MILES. PATH WIDTH 50 YARDS. KOTV METEOROLOGIST OBSERVED THIS TORNADO CROSSING HIGHWAY 75 JUST NORTH OF 201ST STREET. THE TORNADO BLEW A VEHICLE OFF THE ROAD AND DID MINOR DAMAGE TO SOME TREES.
Apr 17, 11:55 PM CDT	HAIL 1	10 S Tulsa, OK	151 ST AND LEWIS AREA IN TULSA
Apr 18, 12:05 AM CDT	TSTM WND DMG	6 Sw Broken Arrow, OK	ROOF DAMAGE TO A HOME...TREE DAMAGE AND A BARN DAMAGED. THIS DAMAGE WAS NEAR A RADAR SIGNATURE SUGGESTING A TORNADO. AN NWS TEAM WILL INVESTIGATE THE AREA TOMORROW.
Apr 18, 12:05 AM CDT	TSTM WND DMG	Broken Arrow, OK	4 INCH DIAMETER LIMBS ON SOUTH 145TH.
Apr 18, 12:05 AM CDT	TSTM WND DMG	Stonebluff, OK	SIDING BLOWN OFF A HOUSE. LARGE TREE BLOWN DOWN. SOCIAL MEDIA
Apr 18, 12:05 AM CDT	TORNADO	Broken Arrow, OK	EF1 DAMAGE AT 131ST AND GARNETT. MULTIPLE TREES DOWNED... CONSIDERABLE DAMAGE TO SECOND STORY OF HOME.

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
Apr 17, 10:47 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 4.7 hours before the alert went out and 167 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 457 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 327 m²/s²
0-3 km storm-relative helicity: 520 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

630 
WFUS54 KTSA 180444
TORTSA
OKC037-111-131-143-145-180515-
/O.NEW.KTSA.TO.W.0004.130418T0444Z-130418T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1144 PM CDT WED APR 17 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CREEK COUNTY IN NORTHEAST OKLAHOMA...
  NORTHWESTERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA...
  SOUTHWESTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA...
  SOUTHEASTERN TULSA COUNTY IN NORTHEAST OKLAHOMA...
  NORTHWESTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 1215 AM CDT

* AT 1141 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 2 MILES SOUTH OF MOUNDS...MOVING NORTHEAST AT
  45 MPH.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  KIEFER...GLENPOOL...BIXBY...JENKS...STONEBLUFF...TULSA...BROKEN
  ARROW...COWETA...ONETA AND CATOOSA.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 225 AND 238.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3623 9577 3607 9558 3592 9558 3586 9574
      3586 9576 3585 9576 3573 9606 3586 9621
TIME...MOT...LOC 0445Z 226DEG 38KT 3587 9603

$$

2 follow-up statements

589 
WWUS54 KTSA 180454
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1154 PM CDT WED APR 17 2013

OKC037-111-180505-
/O.CAN.KTSA.TO.W.0004.000000T0000Z-130418T0515Z/
CREEK OK-OKMULGEE OK-
1154 PM CDT WED APR 17 2013

...THE TORNADO WARNING FOR NORTHWESTERN OKMULGEE AND EASTERN CREEK
COUNTIES IS CANCELLED...

LAT...LON 3623 9577 3607 9558 3592 9558 3586 9574
      3585 9602 3600 9603
TIME...MOT...LOC 0455Z 230DEG 37KT 3593 9593

$$

OKC131-143-145-180515-
/O.CON.KTSA.TO.W.0004.000000T0000Z-130418T0515Z/
ROGERS OK-TULSA OK-WAGONER OK-
1154 PM CDT WED APR 17 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
NORTHWESTERN WAGONER...SOUTHEASTERN TULSA AND SOUTHWESTERN ROGERS
COUNTIES...

AT 1154 PM CDT...A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
WAS LOCATED NEAR BIXBY...MOVING NORTHEAST AT 45 MPH. A TORNADO IS
OCCURRING OR IMMINENT.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...JENKS...
BIXBY...TULSA...LEONARD...STONEBLUFF...BROKEN ARROW...COWETA...ONETA
AND CATOOSA.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 227 AND 238.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3623 9577 3607 9558 3592 9558 3586 9574
      3585 9602 3600 9603
TIME...MOT...LOC 0455Z 230DEG 37KT 3593 9593

$$

818 
WWUS54 KTSA 180507
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1207 AM CDT THU APR 18 2013

OKC131-143-145-180515-
/O.CON.KTSA.TO.W.0004.000000T0000Z-130418T0515Z/
ROGERS OK-TULSA OK-WAGONER OK-
1207 AM CDT THU APR 18 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT FOR
NORTHWESTERN WAGONER...SOUTHEASTERN TULSA AND SOUTHWESTERN ROGERS
COUNTIES...

AT 1204 AM CDT...A DAMAGING TORNADO WAS LOCATED NEAR BIXBY...MOVING
NORTH AT 45 MPH. THIS IS A LIFE THREATENING SITUATION...RADAR
CONFIRMS TORNADO DEBRIS IN THE AIR!

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...ONETA...
BROKEN ARROW...TULSA AND CATOOSA.

THIS INCLUDES INTERSTATE 44 BETWEEN MILE MARKERS 227 AND 238.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3586 9574 3590 9590 3600 9603 3623 9577
      3607 9558 3592 9558
TIME...MOT...LOC 0507Z 200DEG 38KT 3602 9583

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:22 PM CDT	Special Weather Statement	TSA	Delaware	53 min
Apr 17, 8:42 PM CDT	Special Weather Statement	TSA	Delaware	33 min
Apr 17, 9:02 PM CDT	Special Weather Statement	TSA	Pawnee	43 min
Apr 17, 9:38 PM CDT	Special Weather Statement	TSA	Creek, Osage, Washington	52 min
Apr 17, 10:09 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa	51 min
Apr 17, 10:35 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	55 min
Apr 17, 10:46 PM CDT	Special Weather Statement	TSA	Craig, Nowata	44 min
Apr 17, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa	60 min
Apr 17, 11:12 PM CDT	Tornado Warning	TSA	Creek, Okmulgee	33 min
Apr 17, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner	52 min
Apr 18, 12:17 AM CDT	Flash Flood Warning	TSA	Creek, Muskogee, Okfuskee, Okmulgee, Rogers, Tulsa and 1 more	4 hr
Apr 18, 12:17 AM CDT	Tornado Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	28 min
Apr 18, 12:38 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Okmulgee and 2 more	67 min
Apr 18, 12:46 AM CDT	Tornado Warning	TSA	Delaware, Mayes	29 min
Apr 18, 1:00 AM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, Mayes, Muskogee, Ottawa and 2 more	4 hr
Apr 18, 1:16 AM CDT	Tornado Warning	TSA	Delaware, Mayes, Ottawa	44 min
Apr 18, 1:53 AM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware	37 min
Apr 18, 2:19 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	56 min
Apr 18, 2:39 AM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware	51 min
Apr 18, 2:46 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okmulgee, Wagoner	44 min
Apr 18, 3:11 AM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Muskogee, Okmulgee, Wagoner	64 min
Apr 18, 3:16 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Ottawa	4 hr
Apr 18, 4:28 AM CDT	Areal Flood Warning	TSA	Creek, Muskogee, Okfuskee, Okmulgee, Tulsa, Wagoner	14 hr
Apr 18, 4:55 AM CDT	Areal Flood Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Rogers, Wagoner	14 hr
Apr 18, 7:15 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Delaware	12 hr
Apr 18, 8:23 AM CDT	River Flood Warning	TSA	Cherokee, Delaware	8 hr
Apr 18, 8:37 AM CDT	River Flood Warning	TSA	Okmulgee	4 days
Apr 18, 9:08 AM CDT	River Flood Warning	TSA	Cherokee	48 hr
Apr 18, 11:58 AM CDT	River Flood Warning	TSA	Adair	30 hr
Apr 18, 3:30 PM CDT	Freeze Warning	TSA	Craig, Creek, Nowata, Pawnee, Rogers, Tulsa and 1 more	17 hr

Nearby

Tornado Warnings in Oklahoma, 2013 Every tornado warning in 2013 Tornadoes in 2013

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.