Public Information Statement
Issued by NWS Denver/Boulder, CO

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
400 PM MDT FRI APR 21 2017

             ...WHEN THUNDER ROARSGO INDOORS...

Thunderstorms produce some of the most dangerous weather on Earth,
including tornadoes, flash floods, large hail, and destructive
straight-line winds.  However, the most dangerous aspect of
thunderstorms in Colorado is usually lightning.

In addition to producing human casualties, lightning also ignites
most forest and rangeland fires in the Centennial State.  Many of
these wildfires occur when lightning is generated from thunderstorms
which produce little or no rainfall.

When lightning threatens, get to a safe shelter as quickly as
possible. Safe shelters include substantial fully-enclosed buildings,
such as houses, churches, or businesses, as well as vehicles with
metal roofs.  Once inside a substantial building or metal-topped
vehicle, keep all windows and doors closed, since lightning can pass
through an open airway.

For more information on lightning safety, go to this web page...
http://weather.gov/boulder and in the news headlines section, click
on the Severe Weather Awareness link and choose Fridays statement.

RememberWhen Thunder Roars, Go Indoors!

Jim Pringle
Warning Coordination Meteorologist
National Weather Service
Grand Junction Colorado



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