PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
400 PM CST THU NOV 10 2011

...TIPTON TORNADO RATING UPGRADED TO EF4...

BASED ON ANALYSIS OF DATA COLLECTED DURING A GROUND DAMAGE SURVEY...
THE RATING FOR THE NOVEMBER 7TH TIPTON TORNADO HAS BEEN UPGRADED TO
EF4 ON THE ENHANCED FUJITA SCALE. THE RATING IS BASED PRIMARILY ON
DAMAGE OBSERVED AT THE OSU AGRONOMY RESEARCH STATION ON HIGHWAY 5.

THIS IS THE FIRST NOVEMBER EF4 TORNADO IN OKLAHOMA SINCE RECORDS
BEGAN IN 1950.

ESTIMATED WIND SPEEDS IN AN EF4 TORNADO RANGE FROM 166 TO 200 MPH.

$$
SMITH

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NORMAN OK
331 PM CST TUE NOV 08 2011

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

0254 PM     TORNADO          3 S TIPTON              34.46N 99.14W
11/07/2011  EF4              TILLMAN            OK   AMATEUR RADIO

            THIS LONG-LIVED TORNADO WAS OBSERVED PASSING TO THE SOUTH
            AND EAST OF TIPTON. IT LIKELY DEVELOPED IN EXTREME
            NORTHERN WILBARGER COUNTY TEXAS ABOUT 4 MILES
            EAST-NORTHEAST OF FARGO TEXAS AT AROUND 238 PM CST, AND
            DISSIPATED ABOUT 3 MILES NORTHEAST OF TIPTON AT AROUND
            315 PM CST. THIS TORNADO HAS BEEN PRELIMINARILY RATED
            EF2.

0315 PM     TORNADO          2 NW MANITOU            34.53N 99.01W
11/07/2011                   TILLMAN            OK   TRAINED SPOTTER

            A TORNADO DEVELOPED TO THE WEST OR NORTHWEST OF MANITOU
            AT APPROXIMATELY 315 PM CST.. MOVED NORTHEAST AND
            DISSIPATED NEAR US HIGHWAY 183 LIKELY JUST NORTH OF THE
            KIOWA/TILLMAN COUNTY LINE SOUTH OF SNYDER.

0338 PM     TORNADO          3 E SNYDER              34.66N 98.90W
11/07/2011                   KIOWA              OK   TRAINED SPOTTER

0350 PM     TORNADO          6 ENE MOUNTAIN PARK     34.72N 98.84W
11/07/2011                   KIOWA              OK   TRAINED SPOTTER

            A TORNADO DEVELOPED SOUTHEAST OF THE INTERSECTION OF
            STATE HIGHWAYS 49 AND 54 IN SOUTHEASTERN KIOWA COUNTY.
            THIS TORNADO MOVED NORTHEAST THROUGH THE WICHITA
            MOUNTAINS WILDLIFE REFUGE IN NORTHWESTERN COMANCHE
            COUNTY.. THEN MOVED BACK INTO KIOWA COUNTY AND DISSIPATED
            AT APPROXIMATELY 425 PM CST EAST-NORTHEAST OF SADDLE
            MOUNTAIN.

0445 PM     TORNADO          7 SSE CARNEGIE          35.01N 98.55W
11/07/2011                   CADDO              OK   TRAINED SPOTTER

            THIS TORNADO WAS OBSERVED TO THE SOUTH-SOUTHEAST OF
            CARNEGIE AND TO THE SOUTHWEST OF FORT COBB AND LASTED FOR
            A FEW MINUTES.

0500 PM     TORNADO          3 NW FORT COBB          35.13N 98.47W
11/07/2011                   CADDO              OK   TRAINED SPOTTER

            THIS MULTIPLE-VORTEX TORNADO DEVELOPED AT APPROXIMATELY
            500 PM CST TO THE NORTHWEST OF FORT COBB... AND MOVED
            NORTH AFFECTING AREAS AROUND FORT COBB LAKE. THIS TORNADO
            LASTED 10 TO 15 MINUTES.