The National Weather Service said there were no injures or damage reported when the tornado touched down around 4:31 p.m.

The EFU rating is used when a tornado's wind speed is undetermined. The NWS also said the minimal damage to crops is not ...

The National Weather Service has confirmed that a microburst was to blame for damage over the weekend in Sanbornton.

The National Weather Service has confirmed a weak tornado touched down in Switzerland County, Indiana, on Sunday evening.

NWS meteorologists in Tampa are working closely with DeSoto County officials to assess the strength of a landspout tornado ...

The full tornado details and official EF classification will be released by the National Weather Service of Des Moines on ...

Dangerous storms targeted numerous states on Tuesday afternoon, prompting immediate warnings for people to seek shelter.

Video footage showed the waterspout spinning near Barnegat Inlet at about 10:38 a.m., and it may have been swirling for about ...

EFU stands for Enhanced Fujita Unknown, meaning that the damage is too minimal to determine a rating or there's no assessable damage.

The full tornado details and official EF classification will be released by the National Weather Service of Des Moines on Tuesday morning.

Last weekend's tornado near Gilbert has been rated an EF-U by the National Weather Service. The tornado, which prompted an early morning warning for much of Story County, formed around 5:45 a.m.

NORTHRIDGE, Ohio — Two tornadoes touched down in western Ohio during a string of storms last weekend, with one generating ...