Significant Damaging Wind and Tornadoes - May 8th, 2009National Weather Service, Springfield, MO |
Severe thunderstorms in the form of a derecho (A widespread, long-lived thunderstorm induced wind storm) caused widespread wind damage across the Missouri Ozarks and southeast Kansas Friday Morning, May 8th. This derecho produced widespread winds of 60-90 mph across a large portion of southeast Kansas and southwest Missouri, and continued to produce these winds well to the east into Illinois and Kentucky. In addition to the powerful winds, numerous tornadoes were also spawned within the line of thunderstorms, several of which were strong tornadoes in the EF-2 and EF-3 range with winds of up to 165 mph. Finally, very heavy rainfall with these storms resulted in significant flash flooding across much of the region.
Not only were significant winds observed along the leading edge of this powerful line of thunderstorms, but behind it as well. The nature of the thunderstorms allowed the complex to create its own extremely strong area of low pressure. The pressure was so low behind the thunderstorms that air had to rush in from behind to equalize the pressure difference. This persistent rush of air, primarily from the northwest, was so strong that winds were estimated to reach as high as 90 mph, and winds of 60 mph or greater lasted as long as 20 to 30 minutes. The strong winds both at the leading edge of the line and well behind it caused significant damage, uprooting, snapping, or damaging thousands of trees, destroying or damaging barns and other outbuildings, moving mobile homes from their foundations, and even causing some structural damage to well built homes.
Storm Report Summary
18 Tornadoes | 73 Wind Reports | 6 Hail Reports
Charity, Willard, Ebeneezer, Fordland, Republic, Polk County Tornadoes
Charity Tornado
A NATIONAL WEATHER SERVICE STORM SURVEY REVEALED THAT AN EF-2 TORNADO TOUCHED DOWN TWO MILES WEST OF CHARITY AND CONTINUED NORTHEAST OVER AN INTERMITTENT PATH.
THE DAMAGE PATH WIDTH WAS APPROXIMATELY 400 YARDS AND THE LENGTH WAS 4 MILES. THREE FRAME HOUSES AND NUMEROUS OUTBUILDINGS WERE DESTROYED BY THIS TORNADO. THE TORNADO ALSO CAUSED ONE FATALITY AND ONE INJURY.
THE NATIONAL WEATHER SERVICE ESTIMATED THE WIND SPEEDS AT 130 MPH.
A NATIONAL WEATHER SERVICE STORM SURVEY REVEALED THAT AN EF-1 TORNADO TOUCHED DOWN IN A FIELD ABOUT ONE QUARTER OF A MILE NORTHEAST OF THE INTERSECTION OF WILLARD ROAD AND FARM ROAD 115.
THE DAMAGE PATH WIDTH WAS APPROXIMATELY 50 YARDS AND THE LENGTH WAS 1.1 MILES. A HOUSE LOCATED ALONG FARM ROAD 115 SUSTAINED HEAVY DAMAGE. A FEW OUTBUILDINGS AT THE SAME LOCATION WERE DESTROYED. THE TORNADO CROSSED HIGHWAY 160...AND LIFTED APPROXIMATELY TWO MILES
SOUTH OF FANTASTIC CAVERNS.
THE NATIONAL WEATHER SERVICE ESTIMATED THE WIND SPEEDS AT 95 MPH.
Ebeneezer Tornado
A NATIONAL WEATHER SERVICE STORM SURVEY REVEALED THAT AN EF-0 TORNADO TOUCHED DOWN NEAR THE INTERSECTION OF HIGHWAY 13 AND HIGHWAY WW NEAR EBENEZER...AND CONTINUED TO THE EAST NORTHEAST OVER AN INTERMITTENT PATH BEFORE LIFTING NEAR H HIGHWAY AND FARM ROAD 56.
THE DAMAGE PATH WIDTH WAS APPROXIMATELY 100 YARDS AND THE LENGTH WAS 2.3 MILES. THE TORNADO DAMAGED SEVERAL OUTBUILDINGS ALONG ITS PATH.
THE NATIONAL WEATHER SERVICE ESTIMATED THE WIND SPEEDS AT 80 MPH.
Laclede County Tornado, Hartville Tornado
Laclede County Tornado
A NATIONAL WEATHER SERVICE STORM SURVEY REVEALED THAT AN EF-2 TORNADO TOUCHED DOWN IN A FIELD 1/4 OF A MILE SOUTH OF THE INTERSECTION OF EVANSTON ROAD AND SPRUCE DRIVE. THE TORNADO TRACKED 2.2 MILES NORTH NORTHEAST...CROSSING FALCON ROAD AND LIFTING JUST PRIOR TO CROSSING HIGHWAY 32.
FOUR HOUSES AND SEVERAL OUTBUILDINGS WERE DAMAGED. ONE MOBILE HOME WAS COMPLETELY DESTROYED AS THE HOME WAS SEPARATED FROM ITS STEEL FRAME. AN RV VAN WAS PICKED UP AND THROWN APPROXIMATELY 20 YARDS AND FLIPPED OVER ON ITS TOP.
THE DAMAGE PATH WAS 200 YARDS WIDE...AND THE LENGTH WAS 2.2 MILES. THE NATIONAL WEATHER SERVICE ESTIMATED THE MAXIMUM WINDS AT 115 MPH...AT THE LOCATION WHERE THE MOBILE HOME WAS DESTROYED.
Pomona Tornado, Cabool Tornado, Howell-Texas-Shannon County Tornado
Pomona Tornado
AT APPROXIMATELY 1000 AM CST...THE NATIONAL WEATHER SERVICE SURVEY TEAM DETERMINED THAT AN EF-3 TORNADO WITH A WIDTH OF 400 TO 800 YARDS AND ESTIMATED WIND SPEEDS UP TO 165 MPH OCCURRED ALONG A 1.8 MILE TRACK FROM ONE MILE NORTHWEST OF POMONA TO 1.7 MILES NORTHEAST OF POMONA. DAMAGE INCLUDED A DESTROYED 39-YEAR OLD HOME WHERE TWO PEOPLE WERE TRAPPED IN A BASEMENT...SEVERAL CARS BLOWN 40 TO 50 YARDS...ONE MOBILE HOME AND ONE TRAVEL TRAILER DESTROYED...TWO OUTBUILDINGS AND AN AUTO SHOP DESTROYED...TWO SCHOOL BUSES BLOWN
OVER...TWO FLAG POLES BLOWN OVER AND NUMEROUS TREES UPROOTED.
Licking Tornado
NWS STORM SURVEY TEAM DETERMINED THAT AN EF1 TORNADO WITH 85 TO 95 MPH WINDS OCCURRED FOUR MILES EAST SOUTHEAST OF HAZELTON OR FIVE MILES WEST OF LICKING. THE TORNADO WAS ONE HALF MILE WIDE AND TRACKED THREE AND A HALF MILES NORTHEAST TO TWO AND HALF MILES NORTHWEST OF LICKING. THE TORNADO REMOVED A ROOF FROM A MOBILE HOME...DESTROYED A BARN...AND UPROOTED NUMEROUS TREES.
A NATIONAL WEATHER SERVICE STORM SURVEY REVEALED THAT A BROAD SWATH OF STRAIGHT LINE WINDS AFFECTED MUCH OF CHEROKEE AND JASPER COUNTIES. WINDS WERE ESTIMATED AT 75 TO 90 MPH THROUGHOUT THE ENTIRE AREA INCLUDING THE TOWNS OF COLUMBUS... CRESTLINE... FAULKNER... ASBURY...CARL JUNCTION...WEBB CITY... CARTHAGE... NORTH JOPLIN... AND AVILLA.
SEVERAL HOMES AND OUTBUILDINGS WERE DAMAGED. GENERAL DAMAGE INCLUDED REMOVAL OF ROOFS FROM HOMES...UPROOTING OF TREES...A 1000 FOOT TRANSMISSION TOWER BLOWN DOWN...DOWNED POWER LINES...AND WINDOWS BLOWN OUT OF HOMES AND AUTOMOBILES.
A MICROBURST ALSO OCCURRED THREE MILES EAST OF CRESTLINE AND PRODUCED A CONCENTRATED AREA OF 90 MPH WINDS WHICH CAUSED SIGNIFICANT DAMAGE TO A RESIDENCE.