Damage Survey from 2008-05-24

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE NORMAN OK

300 PM CDT WED MAY 28 2008

…TORNADO DAMAGE SURVEY INFORMATION FROM SATURDAY MAY 24…

METEOROLOGISTS CONTINUE TO ANALYZE INFORMATION FROM THE SATURDAY MAY

24TH TORNADOES. GROUND SURVEYS WERE CONDUCTED OVER THE PAST COUPLE

OF DAYS…ALONG WITH AN ATTEMPT TO COUNT AND IDENTIFY INDIVIDUAL

TORNADOES BASED ON VIDEO AND IMAGES…AS WELL AS SPOTTER…CHASER

AND MEDIA ACCOUNTS.

THE FINAL NUMBER OF TORNADOES IS STILL NOT KNOWN…BUT WE ESTIMATE

THAT APPROXIMATELY TEN TORNADOES OCCURRED. WE HAVE GROUND DAMAGE

SURVEY INFORMATION ON FIVE OF THOSE TORNADOES.

THIS INFORMATION IS STILL PRELIMINARY…AND WILL LIKELY CHANGE

BEFORE THE OFFICIAL REPORT IS PUBLISHED IN STORM DATA LATER THIS

YEAR.

TORNADO NUMBER 1

PATH: 1 NW LACEY TO 1 NE LACEY

WIDTH: 150 YARDS

LENGTH: 2.1 MILES

INTENSITY: EF1

THE FIRST IN A SERIES OF TORNADOES TOUCHED DOWN IN AN OPEN FIELD

JUST WEST OF THE SEABOARD FOODS PIG FARM NORTH OF LACEY. THE TORNADO

HIT BUILDINGS AT THE FARM, HOWEVER POWER POLES JUST WEST OF THE

BARNS WERE NOT DAMAGED. DAMAGE AT THIS LOCATION WAS RATED AS EF1 ON

THE ENHANCED FUJITA SCALE. THE TORNADO CONTINUED JUST SOUTH OF EAST

AND IMPACTED SOME TREES AND A TRAILER ABOUT ONE HALF MILE NORTH OF

LACEY.

TORNADO NUMBER 2

PATH: 8 WNW HENNESSEY TO 6 NW HENESSEY

WIDTH: 220 YARDS

LENGTH: 2.5 MILES

INTENSITY: EF2 (LOWER END)

THE TORNADO CROSSED HIGHWAY 132…DOING MINOR DAMAGE TO GRAIN SILOS.

THE TORNADO THEN MOVED NORTHEAST TOWARDS AN ABANDONED FARM. AT THIS

LOCATION THE ROOF OF A HOUSE WAS REMOVED AND WINDOWS WERE BROKEN. A

LARGE TREE WAS UPROOTED AND MOST OF THE TREES HAD SNAPPED TRUNKS.

AFTER HITTING THE FARM…THE TORNADO CROSSED CR 600 AND SNAPPED

POWER POLES. THE TORNADO CONTINUED MOVING NORTHEAST…DAMAGING TREES

LIMBS AND FLATTENING WHEAT NEAR CR 2810.

TORNADO NUMBER 3

PATH: 6 NW HENNESSEY TO 6 NNW HENNESSEY

WIDTH: UNKNOWN

LENGTH: 1.9 MILES

INTENSITY: EF0

THE ONLY KNOWN DAMAGE FROM THIS TORNADO WAS TO TREES. THE PATH IS

ESTIMATED FROM LOCAL MEDIA VIDEO.

TORNADO NUMBER 4

PATH: 9 WNW MARSHALL TO 4 WNW MARSHALL

WIDTH: 20-80 YARDS

LENGTH: 4.7 MILES

INTENSITY: EF0

THIS TORNADO CAUSED MINOR TREE DAMAGE FOR THE FIRST HALF OF ITS

PATH. LARGE METAL TRANSMISSION TOWERS WERE BLOWN OVER…WITH SOFT

SOIL IN WHICH THE TOWERS WERE ANCHORED LIKELY A FACTOR. TOWARD THE

END OF THE PATH…A GREEN HOUSE SUSTAINED SOME DAMAGE TO ITS VINYL

COVERING.

TORNADO NUMBER 5

PATH: 7 SW COVINGTON TO 10 SE COVINGTON

WIDTH: 0.9 MILES

LENGTH: 11.2 MILES

INTENSITY: EF2 (UPPER END)

ACCORDING TO SPOTTER/CHASER REPORTS AND DAMAGE SURVEY

INFORMATION…THIS WAS A LARGE AND…AT TIMES…MULTIPLE VORTEX

TORNADO…ESPECIALLY ALONG THE FIRST PART OF THE PATH. AT TWO POINTS

ALONG THE PATH…THERE WERE SEVERAL SNAPPED/DOWNED POWER POLES…

WITH A DAMAGE PATH WIDTH OF AROUND ONE HALF MILE. SIGNIFICANT DAMAGE

OCCURRED STARTING AT HIGHWAY 74 GOING EAST. AT HIGHWAY 74 AND BISON

ROAD…AN ANCHORED SINGLE WIDE MOBILE HOME USED AS AN OFFICE WAS

THROWN ONTO THE HIGHWAY. HOWEVER THERE WAS ONLY MINIMAL DAMAGE TO

SURROUNDING BUILDINGS AND POWER LINES. THE TORNADO TRACKED EAST

ALONG BISON ROAD DESTROYING OUTBUILDINGS AND A ROOF AT ONE PROPERTY.

A HORSE TRAILER WAS THROWN EAST ABOUT 300 YARDS. SIGNIFICANT TREE

DAMAGE AND SNAPPED POWER POLES WERE OBSERVED ALONG BISON ROAD.

TOWARD THE END OF THE PATH…A 100 YEAR OLD CHURCH – SITTING ON A

ROCK/CINDER BLOCK FOUNDATION – WAS COMPLETELY DESTROYED. THIRTY HEAD

OF CATTLE WERE ALSO KILLED.

FOR REFERENCE…HERE IS THE ENHANCED FUJITA SCALE AND THE ASSOCIATED

WIND SPEED ESTIMATES:

EF0 — 65 TO 85 MPH

EF1 — 86 TO 110 MPH

EF2 — 111 TO 135 MPH

EF3 — 136 TO 165 MPH

EF4 — 166 TO 200 MPH

EF5 — GREATER THAN 200 MPH

THANKS TO KIEL ORTEGA…JOE YOUNG AND NICK BIERMANN FOR THE SURVEY

INFORMATION AND ANALYSIS.

$$

SMITH

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About Putnam Reiter

Putnam has been storm chasing since 1990 and is a co-founder of Hook-Echo.com. For his day job, Putnam works in emergency management for information technology.
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