Buchanan & Jones County Survey Results

Buchanan & Jones County Post Storm Damage Assessment Survey: Aug 20, 2009

LATE IN THE AFTERNOON ON AUGUST 19...A LINE OF THUNDERSTORMS MOVED
INTO EASTERN IOWA. THIS LINE CONTAINED EMBEDDED CIRCULATIONS...TWO
OF WHICH PRODUCED TORNADOES. IN ADDITION...SOME AREAS NORTHEAST OF
MARTELLE IOWA EXPERIENCED ISOLATED DOWNBURST WINDS. THESE WINDS
WERE STRONG ENOUGH TO CAUSE TREE DAMAGE AND DESTROY A CORN CRIB
AT A FARMSTEAD.

...BUCHANAN COUNTY TORNADO RATED EF-1...

BUCHANAN COUNTY TORNADO INFORMATION...

*    LOCATION... 2 SOUTH OF STANLEY...TO 2 SOUTHEAST OF STANLEY.
*    TIME...APPROXIMATELY 430 PM TO 445 PM 8/19/09.
*    INJURIES/FATALITIES...NONE.
*    EF-SCALE RATING...EF1.
*    ESTIMATED WIND SPEED...95 MPH.
*    MAX WIDTH...100 YARDS.
*    PATH LENGTH...APPROXIMATELY 2 MILES.
*    DAMAGE INFORMATION...TWO FARMSTEADS DAMAGED...TWO HOG
     CONFINEMENTS DAMAGED...HOME LOST MOST OF ROOF...SILO
     DAMAGED...BACK WALL OF POLE BUILDING BLOWN OUT...AND TREES DOWN.


...JONES COUNTY TORNADO RATED EF-0...

JONES COUNTY TORNADO INFORMATION...

*    LOCATION...NORTH EDGE OF MARTELLE.
*    TIME...APPROXIMATELY 520 PM 8/19/09.
*    INJURIES/FATALITIES...NONE.
*    EF-SCALE RATING...EF0.
*    ESTIMATED WIND SPEED...80 MPH.
*    MAX WIDTH...50 YARDS.
*    PATH LENGTH...APPROXIMATELY 1/10 OF A MILE.
*    DAMAGE INFORMATION...MINOR TREE DAMAGE...TRUNKS SNAPPED...AND
     A COUPLE UPROOTED.

ENHANCED FUJITA /EF/ SCALE INFORMATION...

PLEASE NOTE THE NUMBERS BELOW ARE APPROXIMATE WIND SPEEDS FOR DAMAGE
CATEGORIES.

EF0...  65 -  85 MPH
EF1...  86 - 110 MPH
EF2... 111 - 135 MPH
EF3... 136 - 165 MPH
EF4... 166 - 200 MPH
EF5... 201 MPH OR GREATER

$$

LEGRO

 

Buchanan County EF-1 Tornado Damage Track

Click on the map to zoom.  Click on a marker for details at that point.

 

    Disclaimer

Map location 1 damage included a collapsed garage door and numerous branch and tree damage.  Large branches found broken off at location 2.  Locations 3 through 7 mark farm house and outbuilding damage. Location 8 was the end of the Buchanan County damage track.

 

Farm Damage SE of Stanley Iowa

Farm Damage SE of Stanley Iowa

Farm Damage SE of Stanley Iowa

Farm Damage

Jones County EF-0 Tornado & Downburst Damage Track

Jones County Damage Track Map

    Disclaimer

Points 1 thru 3 EF0 tornado damage.

1.  Trees uprooted.  Wind direction NW, speed 100mph.

2.    Large hardwwod tree snapped to the north.  Damage to west side of storage building. Wind direction N speed 100 mph.

3.  Crops flattened. Corn leaning to the northwest on back side of storage building. Glass and dirt splatter on east side of building. Wind direction NW, speed 60 mph.

Points 4 thru 6 downburst wind damage.

4. 1-2 foot diameter limbs on old, rotten tree broken. Wind direction E speed 90 mph.

5.  Farm outbuilding destroyed. Corn crib open.  Wind direction N speed 125 mph.

6. Portions of the corn crib roof were scattered to the east. Wind direction E speed 100 mph.



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