Weather Service Changes Criteria for Storm Warning

Posted Saturday, February 14, 2009 --- 4:05 p.m.

MILWAUKEE (AP) — It's a subtle change, but the National Weather Service hopes it'll make Wisconsin residents pay more attention to storm warnings.

The agency typically issues a severe-thunderstorm warning when hailstones are expected to be at least 3/4 inch in diameter. That's about the size of a penny.

But starting next month, hailstones will have to be at least a full inch in diameter to prompt a warning. That's about quarter-sized.

Meteorologist Penny Zabel says the change reflects the fact that hailstones generally don't cause damage unless they're at least an inch in diameter.

She says there aren't statistics on how many warnings were issued last year and how many would have been avoided under the new rule. She says that data will be collected this year.

Copyright 2009 The Associated Press

Comments are posted from viewers like you and do not always reflect the views of this station.
powered by Disqus
NBC15 615 Forward Drive Madison, Wisconsin 53711 Business: 608-274-1515 Newsroom: 608-274-1500
Copyright © 2002-2014 - Designed by Gray Digital Media - Powered by Clickability 39617592 -
Gray Television, Inc.