• Looking at damage caused by different kinds of storms

    By: Megan McClellan



    Quick Facts

    • Severe storms occurred overnight, leaving damage
    • Different types of storms cause different patterns of damage
    • Three main types of damage patterns - tornadoes, straight-line winds, microbursts
    • Tune in at 5 p.m.for details on microbursts from FOX23 Meteorologist Ben Walnick


    More severe storms pushed through Green Country Wednesday night and Thursday morning causing flooding, flipped boat docks, and trees down.

    There were no Tornado Warnings or sightings, but there were Severe Thunderstorm Warnings as storms pushed through Green Country.

    These storms packed a punch, as seen below, dropping 8" or more of rain in some localized areas. 

    FOX23 Meteorologist Michael Seger mentioned Thursday morning the Cookson Mesonet site received over 8" of rain, but 14 miles to the north, Tahlequah recorded less than 1" and 18 miles to the southwest, Webbers Falls received less than 0.5" of rain.

    Winds also caused damage, turning over RVs, breaking trees, and even flipping some boat docks.

    Meteorologists with the National Weather Service will tour the area around Lake Tenkiller to figure out what occurred in the area.

    Was it straight line winds or was it a microburst?

    When meteorologists do damage surveys they look for multiple things. The different types of damage patterns help meteorologists determine what occurred as the storm went through.

    When a tornado goes through an area, storm survey crews look for damage that is convergent in pattern, meaning the debris or damage is moving into a single location. It can also be seen in the damage a counterclockwise pattern - the way most tornadoes spin. Most of the time, the damage pattern is within a mile in width or less.

    The damage for a tornado can be seen in the video below. Trees are laying in different directions, showing the rotation of the winds rather than a single direction.

    For straight line winds - the damage path can be spread out across multiple miles and most of the damage will all be pointing or facing the same direction. Very strong winds can knock over trees, removed shingles from homes, etc. 

    The video shows the wind and rain in this storm all pushing in a single direction, not twisting around:

    As storm season settles in to Green Country, different types of damage will continue to show up with the different storms moving through.

    Green Country has already seen wind damage and tornado damage this year, but it is possible that we could now see some microburst damage.

    Tune it to FOX23 News at 5 for more details on what type of damage patterns occur in microbursts and what FOX23 Meteorologist Ben Walnick found when he toured the Lake Tenkiller area.

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