Tornado B4 - The Stillwater Tornado of May 24, 2011

A1

A2

B1

B2

Tornado Data

Tornado Number	Date	Time (CST)	Length of Path (miles)	Width of Path (yards)	F-Scale	Killed	Injured	County	Location
B4	05/24/2011	1650-1705	10	880	EF2	0	0	Payne	8 SW - 3 ESE Stillwater

This tornado developed with mainly tree and power pole/line damage. The tree damage was significant, with several homes impacted as the tornado traveled northeast. Significant roof and siding damage occurred to the homes, with several barns and outbuildings sustaining significant damage or were destroyed altogether. EF-2 damage continued as the tornado moved south of Stillwater, with additional structures sustaining roof damage. A couple of the homes also had collapsed chimneys. The damage lessened in severity over the latter half of the tornado path, with mostly tree damage and minor structural damage.

Tornado Track

Radar Imagery

Twin Lakes, OK (KTLX) Radar Relectivity and Storm Relative Velocity
5:48 PM CDT	5:52 PM CDT
5:56 PM CDT	6:00 PM CDT
6:05 PM CDT	6:10 PM CDT

Tornado Warnings and Warning Updates

5:33 PM CDT - 5:49 PM CDT - 6:07 PM CDT - 6:27 PM CDT

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
533 PM CDT TUE MAY 24 2011

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LOGAN COUNTY IN CENTRAL OKLAHOMA...
  PAYNE COUNTY IN CENTRAL OKLAHOMA...
  SOUTHEASTERN NOBLE COUNTY IN NORTHERN OKLAHOMA...

* UNTIL 630 PM CDT

* AT 533 PM CDT...A LARGE... VIOLENT TORNADO WAS LOCATED NEAR
  GUTHRIE...MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE COYLE...GLENCOE...GUTHRIE...
  INGALLS...LAKE CARL BLACKWELL...LAKE MCMURTRY...LANGSTON...
  MORRISON...PERKINS...QUAY...RIPLEY...SOONER LAKE...STILLWATER AND
  YALE.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 157 AND 175.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU
ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER
IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE
COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND
WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS.

&&

LAT...LON 3635 9702 3635 9695 3633 9691 3626 9691
      3626 9683 3624 9681 3617 9681 3618 9663
      3617 9661 3610 9662 3585 9740 3594 9751
      3646 9703
TIME...MOT...LOC 2233Z 235DEG 30KT 3591 9741

$$

WWUS54 KOUN 242249
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
549 PM CDT TUE MAY 24 2011

OKC083-103-119-242330-
/O.CON.KOUN.TO.W.0052.000000T0000Z-110524T2330Z/
LOGAN OK-NOBLE OK-PAYNE OK-
549 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR PAYNE...
SOUTHEASTERN NOBLE AND CENTRAL LOGAN COUNTIES...

AT 549 PM CDT...A THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES
WAS LOCATED 3 MILES NORTH OF COYLE...MOVING NORTHEAST AT 40 MPH.
THIS IS A VERY DANGEROUS STORM AND IS HEADING TOWARD STILLWATER.
TAKE COVER NOW!

* LOCATIONS IN THE WARNING INCLUDE COYLE...GLENCOE...INGALLS...LAKE
CARL BLACKWELL...LAKE MCMURTRY...LANGSTON...MORRISON...QUAY...
RIPLEY...SOONER LAKE...STILLWATER AND YALE.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 163 AND 173.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU
ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER
IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE
COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND
WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS.

&&

LAT...LON 3588 9734 3601 9742 3646 9703 3635 9702
3635 9695 3633 9691 3626 9691 3626 9683
3624 9681 3617 9681 3618 9663 3617 9661
3610 9662
TIME...MOT...LOC 2249Z 237DEG 37KT 3601 9722

$$

WWUS54 KOUN 242307
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
607 PM CDT TUE MAY 24 2011

OKC083-242316-
/O.CAN.KOUN.TO.W.0052.000000T0000Z-110524T2330Z/
LOGAN OK-
607 PM CDT TUE MAY 24 2011

...THE TORNADO WARNING HAS BEEN CANCELLED FOR CENTRAL LOGAN COUNTY...

THE STORM HAS MOVED EAST OF THE COUNTY.

LAT...LON 3596 9710 3612 9726 3646 9703 3635 9702
3635 9695 3633 9691 3626 9691 3626 9683
3624 9681 3617 9681 3618 9663 3617 9661
3610 9662
TIME...MOT...LOC 2306Z 239DEG 38KT 3610 9702

$$

OKC103-119-242330-
/O.CON.KOUN.TO.W.0052.000000T0000Z-110524T2330Z/
NOBLE OK-PAYNE OK-
607 PM CDT TUE MAY 24 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR PAYNE AND
SOUTHEASTERN NOBLE COUNTIES...

AT 606 PM CDT...A THUNDERSTORM WITH A HISTORY OF PRODUCING TORNADOES
WAS LOCATED NEAR STILLWATER...MOVING NORTHEAST AT 45 MPH. THE MOST
DANGEROUS PART OF THE STORM WAS LOCATED ACROSS THE SOUTH SIDES OF
STILLWATER.

* LOCATIONS IN THE WARNING INCLUDE GLENCOE...INGALLS...LAKE CARL
BLACKWELL...LAKE MCMURTRY...MORRISON...QUAY...SOONER LAKE...
STILLWATER AND YALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU
ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER
IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE
COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND
WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS.

&&

LAT...LON 3596 9710 3612 9726 3646 9703 3635 9702
3635 9695 3633 9691 3626 9691 3626 9683
3624 9681 3617 9681 3618 9663 3617 9661
3610 9662
TIME...MOT...LOC 2306Z 239DEG 38KT 3610 9702

$$

WWUS54 KOUN 242327
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
627 PM CDT TUE MAY 24 2011

OKC103-119-242335-
/O.EXP.KOUN.TO.W.0052.000000T0000Z-110524T2330Z/
NOBLE OK-PAYNE OK-
627 PM CDT TUE MAY 24 2011

...THE TORNADO WARNING FOR PAYNE AND SOUTHEASTERN NOBLE COUNTIES WILL
EXPIRE AT 630 PM CDT...

THE TORNADIC PORTION OF THE STORM HAS MOVED OUT OF NOBLE AND PAYNE
COUNTIES.

LAT...LON 3596 9710 3612 9726 3646 9703 3635 9702
3635 9695 3633 9691 3626 9691 3626 9683
3624 9681 3617 9681 3618 9663 3617 9661
3610 9662
TIME...MOT...LOC 2325Z 239DEG 38KT 3620 9681

$$