National Weather Service United States Department of Commerce

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

A Discussion on Water Vapor (Moisture)

QUESTION 4:

If the temperature outside was 20 degrees with a wind speed of 20 mph, would this "feel" colder to you than if the temperature was 5 degrees with a 5 mph wind speed?

ANSWER 4:

It definitely would be cold either way, but it would "feel" like 10 degrees below zero for a wind of 20 mph at 20 degrees, and only feel like zero for a wind of 5 mph and actual air temperature of 5.

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