Prepping for Impact: Navigating Potential Spring Storms

March 24, 2024
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As Winter fades in the rearview mirror, we need to turn our attention to the upcoming season. In 2023 we actually had very little severe thunderstorm activity, due to the drought. So, what will 2024 bring?
Usually, exiting an El Nino winter results in a slightly lower threat for severe thunderstorms, including tornadoes, hail and strong winds. But, so far this year, we have seen a fairly active and early severe weather season over the Central and Southern US. The first ever February tornado in Wisconsin and several tornadoes in/around the Chicago area in late March. Like seasonal snow forecasting, nobody really knows. But, being prepared is key.

Severe thunderstorms are defined by three different elements: tornadoes, winds greater than 58 mph, and hail of 1” diameter or greater. Lightning and heavy rain occur with every thunderstorm, but they do not define a severe thunderstorm. But, lightning and flash flooding kill more people in the US each year than the other three combined.

Tornadoes are defined as a rotating column of air, that develops from a thunderstorm. They normally develop on the SW flank of thunderstorms where they have access to undisturbed moisture and heat. Virginia only averages around 10 tornadoes per year and most are weak. Virginia’s biggest tornado outbreak occurred with the passage of the remnants of Hurricane Ivan in 2004. Thirty-eight tornadoes occurred that day, with many large and damaging tornadoes.

Winds of 58 mph or stronger also defines a severe thunderstorm. In some of the strongest thunderstorms, winds can exceed 100 mph. These tend to occur with large thunderstorm complexes that are called Derechos. Our last Derecho occurred the evening of June 29, 2012 with widespread winds of 70-90 mph. The strongest winds with thunderstorms are along the leading edge. A shelf cloud visibly defines the leading edge of stronger winds.

Hail of 1” or more in diameter is the third element that can define a severe thunderstorm. Hail of this size can dent cars and cause roof/siding damage, especially if accompanied by strong winds. Most hail events in VA are below 2”, but on rare occasions, we can get some very large hail.

There are several ways of protecting yourself from lightning. The first is to get inside a building when a thunderstorm approaches. If you are caught outside, during a thunderstorm, you should stay away from hills, tall trees and open areas. Lightning tends to strike the highest thing around so the safest thing to do is get as low as possible. For people fishing, golfing or playing outdoor sports, you need to get off the water, golf course or field immediately. A good rule of thumb for lightning safety is the 30-30 rule. Once you see lightning, count until you hear the thunder. If it is 30 seconds or less, it’s time to get inside. Once the thunderstorm ends, wait an additional 30 minutes, from the last time you heard thunder or see lightning, before going back outside. Lightning has been known to strike several miles away from the main thunderstorm.

Watch -vs- Warning: Watches are issues for Tornadoes and Severe Thunderstorms. They are usually issued for a period of 6-8 hours and can cover areas almost the size of VA. If a watch is issued, that means there is the potential for the specific kind of weather. A tornado watch, includes the threat for severe thunderstorms, including Strong winds, Large Hail and Tornadoes. A Severe Thunderstorm Watch is issued for the threat of Strong Winds and Large Hail.

A warning is issued if either a Tornado, Strong winds or large hail is indicated by Radar and/or reported. Warnings usually are limited to one hour or less.This is the time to prepare for the upcoming severe weather season, by finding your safe place in your home or business. Make sure everyone knows where to go, so there is no delay.


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As Winter fades in the rearview mirror, we need to turn our attention to the upcoming season. In 2023 we actually had very little severe thunderstorm activity, due to the drought. So, what will 2024 bring?
Usually, exiting an El Nino winter results in a slightly lower threat for severe thunderstorms, including tornadoes, hail and strong winds. But, so far this year, we have seen a fairly active and early severe weather season over the Central and Southern US. The first ever February tornado in Wisconsin and several tornadoes in/around the Chicago area in late March. Like seasonal snow forecasting, nobody really knows. But, being prepared is key.

Severe thunderstorms are defined by three different elements: tornadoes, winds greater than 58 mph, and hail of 1” diameter or greater. Lightning and heavy rain occur with every thunderstorm, but they do not define a severe thunderstorm. But, lightning and flash flooding kill more people in the US each year than the other three combined.

Tornadoes are defined as a rotating column of air, that develops from a thunderstorm. They normally develop on the SW flank of thunderstorms where they have access to undisturbed moisture and heat. Virginia only averages around 10 tornadoes per year and most are weak. Virginia’s biggest tornado outbreak occurred with the passage of the remnants of Hurricane Ivan in 2004. Thirty-eight tornadoes occurred that day, with many large and damaging tornadoes.

Winds of 58 mph or stronger also defines a severe thunderstorm. In some of the strongest thunderstorms, winds can exceed 100 mph. These tend to occur with large thunderstorm complexes that are called Derechos. Our last Derecho occurred the evening of June 29, 2012 with widespread winds of 70-90 mph. The strongest winds with thunderstorms are along the leading edge. A shelf cloud visibly defines the leading edge of stronger winds.

Hail of 1” or more in diameter is the third element that can define a severe thunderstorm. Hail of this size can dent cars and cause roof/siding damage, especially if accompanied by strong winds. Most hail events in VA are below 2”, but on rare occasions, we can get some very large hail.

There are several ways of protecting yourself from lightning. The first is to get inside a building when a thunderstorm approaches. If you are caught outside, during a thunderstorm, you should stay away from hills, tall trees and open areas. Lightning tends to strike the highest thing around so the safest thing to do is get as low as possible. For people fishing, golfing or playing outdoor sports, you need to get off the water, golf course or field immediately. A good rule of thumb for lightning safety is the 30-30 rule. Once you see lightning, count until you hear the thunder. If it is 30 seconds or less, it’s time to get inside. Once the thunderstorm ends, wait an additional 30 minutes, from the last time you heard thunder or see lightning, before going back outside. Lightning has been known to strike several miles away from the main thunderstorm.

Watch -vs- Warning: Watches are issues for Tornadoes and Severe Thunderstorms. They are usually issued for a period of 6-8 hours and can cover areas almost the size of VA. If a watch is issued, that means there is the potential for the specific kind of weather. A tornado watch, includes the threat for severe thunderstorms, including Strong winds, Large Hail and Tornadoes. A Severe Thunderstorm Watch is issued for the threat of Strong Winds and Large Hail.

A warning is issued if either a Tornado, Strong winds or large hail is indicated by Radar and/or reported. Warnings usually are limited to one hour or less.This is the time to prepare for the upcoming severe weather season, by finding your safe place in your home or business. Make sure everyone knows where to go, so there is no delay.


Share: