NWS Little Rock, AR - Text Viewer

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Public Information Statement
National Weather Service Little Rock AR
600 AM CST Thu Mar 6 2025

...Todays Topic for Severe Weather Awareness Week is 
Severe Thunderstorms...

The National Weather Service, in cooperation with the Arkansas 
Department of Emergency Management, has proclaimed the week of 
March 2nd through the 8th as Severe Weather Awareness Week 
in Arkansas. 

A different topic will be discussed each day, and the topic 
today is Severe Thunderstorms. 

At any given moment around the world, approximately 1800 
thunderstorms are occurring. Although thunderstorms are relatively 
small, when considered on a global scale of weather, all 
thunderstorms are dangerous. Lightning, flash floods, hail, 
straight-line winds, and tornadoes all result from thunderstorms. 

A thunderstorm is considered severe when it produces winds of at 
least 58 mph, hail at least 1 inch in diameter (the size of a 
quarter), and/or a tornado. 

Hail forms in storm clouds where the air is subfreezing. Updrafts 
which feed storm clouds drive raindrops skyward, and liquid turns 
to ice. Quite often, hailstones will fall through the cloud, 
collect water, and updrafts will force them aloft. The stones 
refreeze and get larger. 

In 2024, there were a half dozen cases of two inch diameter hail 
or bigger on March 14th, and five instances of similar size hail 
on May 24th/26th. Softball size hail pelted areas west of Sulphur 
Springs (Benton County) during the former event, and Slovak 
(Prairie County) during the latter episode.

Large hail, on average, causes over one billion dollars in damage 
(property and crops) in the United States each year. While large 
hail causes some injuries, deaths from hail are relatively rare. 
Animals fare far worse than humans. 

When updrafts are overcome by rain and hail in storms, air from 
aloft can descend in a hurry. When these downdrafts hit the ground 
and spread out in all directions, damaging straight-line wind gusts 
sometimes result. 

In 2024, there were ten cases of damaging wind gusts at least 
75 mph on May 26th. Destructive gusts up to 100 mph blasted through
areas from Bentonville to Little Flock (both in Benton County) and 
Hardy to Williford (both in Sharp County).

Occasionally, thunderstorms spawn tornadoes. Most of these are 
produced in the spring and fall during the afternoon and evening. 
There are 37 tornadoes in a typical year. There were 52 tornadoes 
locally in 2024. 

Two other hazards associated with thunderstorms are lightning and 
flash floods. However, these are not considered severe. 

Whenever thunder is heard, there is lightning nearby. Lightning is 
deadly, especially in the summer when people are outdoors. 

Flash floods are another thunderstorm hazard. Vehicles driven into 
flooded areas result in the greatest number of flash flood deaths. 

Across the country, the top three deadliest thunderstorm hazards 
in the last 30 years were flash floods, tornadoes, and 
lightning (in that order). 

...Some Severe Weather Safety Rules...

Know the difference between a watch and a warning. The National 
Weather Service issues watches when conditions are favorable for 
the development of severe weather. Warnings are reserved for cases 
where severe weather is imminent or occurring. 

If a Severe Thunderstorm Warning or Tornado Warning is issued 
for your area, do not hesitate to find a place of safety. If a 
safe room is not available, the next best location is the lowest 
floor of a permanent structure in an interior room away from 
windows. Put as many walls between you and the outdoors as you 
can. 

Make sure that you have a source to receive the latest 
information, such as NOAA Weather Radio All Hazards, commercial 
radio, TV stations or cable TV. Other sources of warning 
information can include telephone notification services to 
which people subscribe, pagers and cell phones. 

&&

For a list of all the tornadoes and other significant weather 
events that occurred in 2024...

https://www.weather.gov/media/lzk/StormsOf2024.pdf

$$

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