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#supercells — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #supercells, aggregated by home.social.

  1. Today's weather word: #Helicity. Sounding it out, you might think it has something to do with #hail, but nope! Instead, it is a measure of low-level wind shear relative to the direction the storm is moving. Greater values indicate enough of a difference to promote rotating updrafts, which promote rotating #supercells and in turn, #tornadoes.

    Photo credit Rachel Sanner/Unsplash

  2. Today's weather word: #Helicity. Sounding it out, you might think it has something to do with #hail, but nope! Instead, it is a measure of low-level wind shear relative to the direction the storm is moving. Greater values indicate enough of a difference to promote rotating updrafts, which promote rotating #supercells and in turn, #tornadoes.

    Photo credit Rachel Sanner/Unsplash

  3. Today's weather word: #Helicity. Sounding it out, you might think it has something to do with #hail, but nope! Instead, it is a measure of low-level wind shear relative to the direction the storm is moving. Greater values indicate enough of a difference to promote rotating updrafts, which promote rotating #supercells and in turn, #tornadoes.

    Photo credit Rachel Sanner/Unsplash

  4. Today's weather word: #Helicity. Sounding it out, you might think it has something to do with #hail, but nope! Instead, it is a measure of low-level wind shear relative to the direction the storm is moving. Greater values indicate enough of a difference to promote rotating updrafts, which promote rotating #supercells and in turn, #tornadoes.

    Photo credit Rachel Sanner/Unsplash

  5. Today's weather word: #Helicity. Sounding it out, you might think it has something to do with #hail, but nope! Instead, it is a measure of low-level wind shear relative to the direction the storm is moving. Greater values indicate enough of a difference to promote rotating updrafts, which promote rotating #supercells and in turn, #tornadoes.

    Photo credit Rachel Sanner/Unsplash

  6. "Although tornadoes touch down in many places across the eastern half of the country, from the 1950s through the 1990s they struck most often in Tornado Alley, an oval area centered on northeastern Texas and south-central Oklahoma. More recently, that focus has shifted eastward by 400 to 500 miles."
    #Meteorlogy #Tornados #Climate #ClimateScience #Supercells

    scientificamerican.com/article

  7. Yesterday (March 26, 16:25 CET) a suspected #Tornado occurred in Hesse, near Giessen (Fernwald/#Annerod) in #Germany.
    Meteorologically, it was a high-SHEAR-low-CAPE situation with plenty of shear in the lower 3 km and marginal lability. Orographic modification of the wind field created a small-scale environment favorable for low-topped #Supercells. The #RADAR-derived hodograph shows veering winds in the lower 3 km, almost pure streamwise vorticity, and corresponding SRH.

    #Meteorology #Weather

  8. After having the tab up for months, finally watched Jamie Boettcher and Evan Bentley's NWA presentation on #radar sidelobe contamination and their creation of invalid circulation signatures near #supercells. The reminder that sidelobes are 3D rings is key. They can get power from the sides, above, and below the main beam, which is important when the main beam is just seeing clear inflow. The impact on spectrum width values was particularly interesting!
    Video: youtu.be/GuiUJt99Yxw