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The center of the lowering begin to form a laminar funnel at
the base. All of the lowered area was spinning rapidly. The distance to the
center of the circulation was about a quarter mile.
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A well formed funnel begins to descend to earth. At this time
it appeared a tornado would form nearby. We could not ask for a better
view.
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The tip of the funnel came very close to the ground, but we
didn't see debris. The funnel slowly sheared out and dissipated. We immediately
drove north to position ourselves for the next event.
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This image was taken looking east. The center of the lowering
was rotating at tornadic speed while cloud elements rushed into the circulation
from the north (left). A thin mist of condensation was forming from the cloud
to the ground. Over the years I've remembered this scene as one of my
favorites.
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After turning north we encountered very large hail, about 3 to
4 inches in diameter. It crashed onto the highway and all vehicles unfortunate
enough to be under the storm. We would find a much more dangerous aspect of the
storm in progress just over the hill.
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Proceeding east on I -40 we came upon a huge black wall of wind
and condensation crossing the highway. The tornado filled the windshield and
drivers side window. Two suction spot tornadoes were rotating around the back
of the funnel at this time. Imagine for a moment lying down in the center grass
median with this huge tornado passed over. Two motorcycle riders did just that,
and survived.
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We climbed atop the overpass to get a better view of the
tornado. When the tornado was crossing the dirt road in the foreground the
winds were too strong to photograph, or stand. We waited until the tornado move
a little further to the northeast before shooting. If you enlarge the image and
look down the road you will see a haze of condensation and mud roaring across
the road. The high winds from the tornado extended well beyond the funnel to
the outer edge of the wall cloud. A curtain of wind and cloud filaments circled
the edge of the wall cloud at very high speed.
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The tornado continued to move slowly to the north east, but
inflow winds remained at about 60 knots. I braced the camera against the bridge
rail to get a steady shot. The loud roar of the tornado could still be heard at
this time. While shooting I remembered the two motorcycle riders. I glanced
down to watch the young men get up from the depression in the median. They got
on their bikes and rode west; no doubt with quite a story to
tell.
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At this time the funnel became more visible and darker in
contrast. Perhaps it was moving across a plowed field. The wall cloud above the
tornado rotated just as violently as the funnel.
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I moved to the east side of the bridge to shoot and noticed the
nearby filling station was destroyed. It was located below me and to my right.
Note some of the power poles are still standing, yet power poles 200 yards down
the road were all snapped. The back of the tornado with its suction spots had
caused this random damage pattern.
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In the last shot the funnel had gotten much wider and here it's
pictured in more of a wedge shape again. The funnel rapidly changed shape as we
watched. The wall cloud around the top of the funnel was becoming smooth and
laminar on the sides.
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The contrast was getting poor as this image was taken. The rain
was beginning to wrap around the back of the funnel.
The wall cloud in this scene was violently rotating and had
become glass smooth on the sides. We could see debris flying as the funnel tore
through a stand of trees. After this image we headed east and north to position
ourselves for the next tornado the day. It cost us the rope out scene, but was
worth as we shot three more tornadoes. |
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