Special Weather Statement

WWUS83 KIND 222056 SPSIND INZ021-028>031-035>049-051>057-060>065-067>072-230100- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery- Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke- Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan- Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew- Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Special Weather Statement National Weather Service Indianapolis IN 456 PM EDT Fri Jun 22 2018
…COLD AIR FUNNELS POSSIBLE TODAY…
Generally funnel clouds and tornadoes develop and occur in conjunction with conditions that produce severe thunderstorms.
There are weak showers and thunderstorms in the area, but little potential for actual tornadoes with only weak wind shear.
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 severe thunderstorms.
Cold air funnels are associated with thunderstorms or showers that form in deep…cold core…large-scale low pressure systems such as the one overhead today. 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 today. Warnings may be issued if any of them touch the ground for an extended period of time.
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