Alert archive / Oklahoma / Tornado Warnings in 2013

Tornado Warning 11, NWS Tulsa, OK

May 19, 2013Creek County, Oklahoma

NWS Tulsa, OK issued this tornado warning at May 19, 2013, 6:47 PM CDT for Creek County, Oklahoma. It was in force for 43 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: May 19, 2013, 6:47 PM CDT (23:47 UTC)
Expired: May 19, 2013, 7:30 PM CDT
In force: 43 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

County Creek County, OK

The radar

The Tulsa radar (KINX), 83 km from the middle of the area, began a volume at 23:47 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
May 19, 7:08 PM CDT	HAIL 0.88	Mannford, OK

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
May 19, 2:14 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 11.8 hours before the alert went out and 113 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: 697 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1033 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 213 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

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

779 
WFUS54 KTSA 192347
TORTSA
OKC037-200030-
/O.NEW.KTSA.TO.W.0011.130519T2347Z-130520T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
647 PM CDT SUN MAY 19 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN CREEK COUNTY IN NORTHEAST OKLAHOMA...

* UNTIL 730 PM CDT

* AT 642 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 3 MILES WEST OF SHAMROCK...MOVING NORTHEAST    
  AT 35 MPH. THIS STORM IS EITHER PRODUCING A TORNADO OR ONE IS      
  IMMINENT.

* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  DRUMRIGHT AND MANNFORD.

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 3617 9635 3596 9623 3589 9662 3590 9662
      3601 9663
TIME...MOT...LOC 2347Z 238DEG 30KT 3594 9659

$$

2 follow-up statements

646 
WWUS54 KTSA 192359
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
659 PM CDT SUN MAY 19 2013

OKC037-200030-
/O.CON.KTSA.TO.W.0011.000000T0000Z-130520T0030Z/
CREEK OK-
659 PM CDT SUN MAY 19 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHERN
CREEK COUNTY...

AT 656 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 14 MILES SOUTHWEST OF MANNFORD...MOVING NORTHEAST AT 35
MPH.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MANNFORD.

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 3617 9635 3616 9635 3599 9625 3594 9653
      3596 9659 3603 9658
TIME...MOT...LOC 2359Z 236DEG 28KT 3601 9651

$$

279 
WWUS54 KTSA 200007
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
707 PM CDT SUN MAY 19 2013

OKC037-200030-
/O.CON.KTSA.TO.W.0011.000000T0000Z-130520T0030Z/
CREEK OK-
707 PM CDT SUN MAY 19 2013

...TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHERN
CREEK COUNTY...

AT 705 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES SOUTHWEST OF MANNFORD...MOVING NORTHEAST AT 30 
MPH.  THIS STORM HAS WEAKENED...HOWEVER IT REMAINS CAPABLE OF 
PRODUCING A TORNADO.

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MANNFORD.

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 3609 9648 3617 9635 3605 9628 3601 9638
      3602 9646
TIME...MOT...LOC 0007Z 236DEG 28KT 3606 9641

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 10:44 PM CDT	Special Weather Statement	TSA	Creek, Osage, Pawnee	61 min
May 18, 11:34 PM CDT	Special Weather Statement	TSA	Creek, Okfuskee	56 min
May 19, 12:12 AM CDT	Special Weather Statement	TSA	Tulsa	48 min
May 19, 12:37 AM CDT	Special Weather Statement	TSA	Craig, Mayes, Nowata, Rogers, Wagoner	38 min
May 19, 3:45 AM CDT	Special Weather Statement	TSA	Osage	30 min
May 19, 4:14 AM CDT	Severe Thunderstorm Warning	TSA	Osage	31 min
May 19, 4:33 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	27 min
May 19, 5:32 AM CDT	Special Weather Statement	TSA	Craig, Nowata	28 min
May 19, 7:23 AM CDT	Special Weather Statement	TSA	Ottawa	37 min
May 19, 5:10 PM CDT	Special Weather Statement	TSA	Creek, Tulsa	80 min
May 19, 5:36 PM CDT	Tornado Warning	TSA	Creek, Pawnee	54 min
May 19, 6:22 PM CDT	Severe Thunderstorm Warning	TSA	Creek	38 min

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.