If you get northerly winds and southerly winds blowing against each other along a boundary and one gets stretched by a storm or shower cloud it could be enough to form a tornado or funnel cloud
form when there's a lot of cold air at about 10,000 feet, with warm air underneath it, creating an especially unstable atmosphere.
Seismic readings could provide meteorologists with a ready means for distinguishing between funnel clouds
and tornadoes, says study leader Frank B.
Storm-watchers spotted at least three funnel clouds
around Minneapolis Wednesday afternoon.
A Met Office spokesman said funnel clouds
can be dangerous if they come into contact with roofs or trees.
The instability of these systems was evident over Point Mugu State Park in Ventura County where several funnel clouds
were spotted below thunderstorms, he said.
Storms in the southern United States turned vicious this month, spawning 150 tornadoes and killing 18 people during a time of year when funnel clouds
normally are a rare sight.
The second half of the storm produced unusual moderate to heavy snowfall accumulations below 4,000 feet in the northern and central Sierra Nevada Mountains, plus localized heavy rain and funnel clouds
near the coast and interior valleys.
were certainly on everybody's mind yesterday and for good reason.
Urban and small-stream advisories were in effect through the day, and funnel clouds
were reported in Newport Beach, said Stuart Seto, a weather specialist at the National Weather Service.
Other instances have included drivers reporting blowing snow, black ice, slippery bridges, dense fog, hail, downed power lines or trees, high water over roadways, potential funnel clouds
and motorists stuck in a snow bank.
Wurman's enduring mission is to get a radar's-eye view inside a tornado, solving the mystery of how these funnel clouds
We are trying to figure out how patterns of winds and rain develop in hurricanes, and determine why and where a storm will produce floods and funnel clouds
As they develop, we often see funnel-shaped clouds extending from the base of the cloud and it is only when these funnel clouds
touch the ground that we get a tornado.
I wouldn't be surprised if there are reports of funnel clouds
and a possible tornado as the storms move northwards.