

AUGUST 18, 2005 SOUTHERN WI
M
Scott Kampas and I started the day in Peoria, IL and
decided to head north into Northern IL because of an outflow boundary that
was across the area. We left Peoria around 3:40 and went North on I-39. When we
caught up to the outflow boundary along the I-88 corridor, the cumulus
associated with the outflow boundary looked like crap and was decreasing in area
coverage so we decided to head north into southern WI where a tornado watch was
in effect and would put us closer to the surface low that was moving across the
area. We were well aware of the tornadic supercell that was occurring to the NW
of the Madison, WI area and decided to head for it. While on route to intercept
this cell NW of Madison, another cell quickly developed off to the SW of
Madison. This cell would eventually become the supercell that produced the
Stoughton, WI tornado. As soon as I started to see rotation on radar to the cell
off to the SW of Madison, we quickly decided that we would try to intercept it
to the SE of Madison near the I-39 corridor in SE Dane county. We got off
at exit 156 and could make out the rain free base and a wall cloud to our WNW.
We decided to head WNW in order to get a better view. We ended up going as far
North as a small town called Utica, however numerous trees were in the view of
the approaching wall cloud, so se decided to head south out of town. It
was about this time that Darin Kaiser, who decided to follow us when he
got off work from Galesburg, IL called us and said that a tornado was on the
ground to his NW and that he was at exit 156 on I-39. We could not see the
tornado as once again numerous trees were in the way to our West. We finally got
an area of clearing and could easily see the approaching
tornado from the West
behind a row of trees. We estimated the tornado to be 2 miles from us. We sat
there for a little while before continuing south until we found a better viewing
area of the tornado. We finally found a bean field and decided to stop and film.
We let the tornado get roughly 1/2 mile from us before we moved again off
to the ESE and ended up on route 73. In order to do this, we had to go back
north a little and then drop back down South. While on route 73, the
tornado
suddenly appeared behind some hills and tress and it got within 1/4 to 1/3
mile of us. The outer edges of some debris almost hit the car. We
continued South until we decided to go East on Craig Road. We let the tornado
pass to our north by roughly 3/4 mile. the tornado at this stage was beginning
to dissipate rapidly. There was no condensation funnel associated with it any
more, but at times a few small vortices at ground level. We continued going East
while a new wall cloud quickly developed off to the ESE of the now dissipated
tornado. While we were moving East into Western Jefferson county, I noticed
another tornado to our NW not associated with the old wall cloud. This
tornado was roughly 3 miles away and rain wrapped but still visible. This
tornado was actually associated with another cell that merged with our storm. We
watched this tornado for several minutes before it become so rain wrapped that
we could not see it. We then decided to go East on Route 106 to get in position
for our new developing wall cloud that was really beginning to wrap up nicely.
Just to the North of Lake Koshkonong, we finally got a decent view of the
now rapidly rotating wall cloud . It was not too much longer before
a tornado developed under it. We watched it for several minutes until it lifted
before heading East on 106 again towards Fort Atkinson while getting slammed
with nearly 55 mph rfd winds. About two miles West of town, I noticed
another tornado through the trees 2 miles to our south, so we tried to get
a better view of it, but it was impossible through the tress. We ended up
going back home once we were in Fort Atkinson, because it was getting dark and
because of the storm now being hpish in nature, we would have a hard time
seeing any more tornadoes unless we were out in front of the storm. Me and
Scott Kampas saw 4 tornadoes on this date. This ended up being the most
tornadoes ever being recorded in a day in WI (27). Sadly, we did not learn
until we got back home that the large tornado that we captured killed 1
person and injured dozens near Stoughton.

Copyright © 2006
Mark Sefried