The National Weather Service will change the criteria it uses to issue Severe Thunderstorm Warnings for the Brazos Valley. This change will happen next year.Click here
to read my previous blog on this topic.
There are two things we look far to determine whether or not a storm is severe:- Wind gusts of at least 58 mph.
- Penny-size hail (3/4 of an inch in diameter)
Starting in 2010, severe thunderstorm warnings will not be issued unless hail of at least half-dollar size (one inch in diameter) is detected. The wind criteria will remain the same.
Even though the hail criteria will increase, remember all it takes is one of the two for a warning to be issued (gusty winds or large hail).
Severe Thunderstorm Warnings are issued only if forecasters believe a storm will put life or property at risk. According to the National Weather Service, widespread damage isn't likely to happen until the hail reaches half-dollar size.
This change -- which is already being incorporated across the central U.S.
-- will likely reduce the number of Severe Thunderstorm Warnings issued.
In my previous blog
on this, earlier this year, a lot of you gave your opinions on this change.
Do you take the necessary precautions when a severe thunderstorm warning is issued?