Steve Norris

Steve Norris

A really wet and unsettled weather pattern is shaping up for the entire week with at least a 70 percent chance of rain each day through Friday and 50 percent for the weekend.

Some of this rain will come from thunderstorms that will dump several inches of rain in some areas.   We will get a break from the heat this week with high temperatures mostly in the mid-80s, not bad for late July!

For fans of the night sky, we have a full moon coming up on Aug. 3 and the exciting Perseid meteor shower on Aug. 11 and Aug. 12. Jupiter will be that bright planet you can see after dark rising in the southeast and then to the south and southwest after midnight.

Did you know that heat lightning is actually lightning from a very distant thunderstorm? Before radar was invented, folks would be sitting out in the evening on a hot night and they would see lightning flashing in the sky and they would think “well there’s no clouds so I guess it is lightning caused by the heat.”

When you see it, there is a thunderstorm somewhere. Lightning can be seen from a storm 60 to 100 miles away on a clear night. The old wives’ tale that a hot, humid night can generate lightning without a thunderstorm, called “heat lighting,” is exactly that — a meteorological myth.

Heat lightning is just normal lightning from a thunderstorm too far away for you to hear thunder.

Steve Norris provides information to Emergency Management Agencies in many counties in Tennessee. Contact him at weather1@charter.net with questions, to provide a weather update for your area or to suggest topics for his column.

Recommended for you