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Visualizing Wind Shear…

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You have probably heard your local weather people talk about Wind Shear — but do you know what wind shear is?

The shortest definition possible is wind shear is a difference in either wind speed and/or direction in the atmosphere.

For the purposes of storms, we typically look at wind shear in the vertical column of the atmosphere and we look for both changes in speed and direction with height.

The change in wind speed with height is known as speed shear. Speed shear is helpful for storms because the faster the wind blows with height, the more ventilated an updraft is. Storm updrafts don’t like to have cool and stable air descending through them, so the more a storm’s downdraft is separated from an updraft, the more likely the updraft is to survive a long time.

The change in direction with wind with height is known as directional shear. As winds with height change direction, they help a storm rotate (strong speed shear does contribute to this as well).

Rotating storms are the storms we tend to look for most when discerning for tornado potential.

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You have probably heard your local weather people talk about Wind Shear — but do you know what wind shear is? Wind shear is a difference in either wind speed and/or direction in the atmosphere. For the purposes of storms, we typically look at wind shear in the vertical column of the atmosphere and we look for both changes in speed and direction with height. The change in wind speed with height is known as speed shear. Speed shear is helpful for storms because the faster the wind blows with height, the more ventilated an updraft is. Storm updrafts don’t like to have cool and stable air falling through them, so the more a storm’s downdraft is separated from an updraft, the more likely the updraft is to survive a long time. The change in direction with wind with height is known as directional shear. As winds with height change direction, they help a storm rotate. Rotating storms are the storms we tend to look for most when discerning for tornado potential. #storm #weather #sky #nature #instaweather #instanature #natureza #instaweatherpro #stormchasing #thunderstorm #stormysky #stormy #skylovers #igsky #video #atmosphere #science #badweather #stormyweather #naturelovers #instanature #greatplains #stormchasers #tornadoalley #thunderstorm #tornado #lightning

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