Johnson Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Special Statement
Issued: 3:13 PM EDT Sep. 28, 2016 – National Weather Service

... Cold air funnels possible this afternoon and early evening...

generally funnel clouds develop and occur in conjunction with
conditions that produce severe thunderstorms.

An entirely different conditions prevails across central Indiana
today. There is little potential for severe thunderstorms...
although a few storms will produce small hail and gusty winds.

Research studies of funnel cloud occurrences indicate that a
different type of funnel cloud forms when weather conditions are
similar to those of today. These are called cold air funnels and
are not as violent as those associated with warm and humid
conditions.

Cold air funnels are associated with thunderstorms or showers
that form in deep... cold core... large-scale low pressure systems.
These funnel clouds are smooth and narrow. The parent storm or
shower is not particularly tall or intense. These funnel clouds
normally protrude a few hundred feet downward from the parent
clouds... rotate or spin like a top... and last only a few minutes
before dissipating.

In rare cases when their circulations does reach the ground...
cold air funnels cause only minor damage. More reports of small
funnel clouds are possible over central Indiana through early this
evening. Warnings will be issued if any of them touch the ground.


Ryan

313 PM EDT Wed Sep 28 2016

... Cold air funnels possible this afternoon and early evening...

generally funnel clouds develop and occur in conjunction with
conditions that produce severe thunderstorms.

An entirely different conditions prevails across central Indiana
today. There is little potential for severe thunderstorms...
although a few storms will produce small hail and gusty winds.

Research studies of funnel cloud occurrences indicate that a
different type of funnel cloud forms when weather conditions are
similar to those of today. These are called cold air funnels and
are not as violent as those associated with warm and humid
conditions.

Cold air funnels are associated with thunderstorms or showers
that form in deep... cold core... large-scale low pressure systems.
These funnel clouds are smooth and narrow. The parent storm or
shower is not particularly tall or intense. These funnel clouds
normally protrude a few hundred feet downward from the parent
clouds... rotate or spin like a top... and last only a few minutes
before dissipating.

In rare cases when their circulations does reach the ground...
cold air funnels cause only minor damage. More reports of small
funnel clouds are possible over central Indiana through early this
evening. Warnings will be issued if any of them touch the ground.


Ryan


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