In much of California and parts of the West, dangerous heat will remain in place through Saturday, with record-breaking temperatures expected. Heat Advisories and Extreme Heat Warnings have been issued. Smoke from Canadian wildfires will bring air quality issues to parts of the Upper Midwest and Great Lakes into the weekend. Air Quality Alerts have been issued. Read More >
Tornado: A violently rotating column of air extending from a thunderstorm cloud to the ground. The Enhanced Fujita Tornado Intensity Scale is used to categorize tornadoes
Funnel Cloud: A condensation funnel extending from the base of a towering cumulus or cumulonimbus, associated with a rotating column of air that is not in contact with the ground (and hence different from a tornado). A condensation funnel is a tornado, not a funnel cloud, if either a) it is in contact with the ground or b) a debris cloud or dust whirl is visible beneath it.
What kind of damage did the wind cause?
What size hail did you see?
What kind of flooding was observed?
39-54 mph: Twigs break off trees; wind generally impedes progress.
55-72 mph: Damage to chimneys and TV antennas; pushes over shallow rooted trees.
73-112 mph: Peels surfaces off roofs; windows broken; light mobile homes pushed or overturned; moving cars pushed off road.
We are mainly interested in visibility reports of a half mile or less.