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      Surreal pics: Nebraska homes, cars blasted by tennis ball-sized hail

      Here is their full rundown of rain at Omaha's airport, with the accumulating total listed first (all times CDT):

      • 4:36: Rain begins
      • 4:40: Wind gust reported of 72 mph
      • 4:52: 1.15" of rain (in 16 minutes!). Hail at 1" diameter
      • 4:57: 1.71" (+0.56" in 5 minutes)
      • 5:00: 2.24" (+0.53" in 3 minutes!)
      • 5:09: 2.42" (+0.18" in 9 minutes)
      • 5:14: 2.43"
      • 5:27: 2.53"
      • 5:52: 2.67"
      • 6:19: 2.75"
      • 6:25: 3.14" (0.39" in 6 minutes)
      • 6:44: 4:08" (0.94" in 19 minutes)
      • 6:52: 4.11"
      • 7:52: 4.41"
      • 8:52: 4.57"
      • (Light to moderate rain for next 4 hours)
      • 1:53 am: 5.30" -- storm total in 9 hours and 17 minutes.

      That's right -- 5.30" of rain in just over 9 hours. To compare, that's roughly Portland's entire monthly rainfall average for December!

      So an unfathomable amount of rain for us, but it wasn't just the rain and wind that wreaked havoc, but the hail as well. Some places in northeastern Nebraska reported tennis-ball sized hail!

      {>} 300 severe weather reports yesterday! We have the latest pics & forecast on @GMA Photo: Jedd Caauwe, NE pic.twitter.com/Vb0x7lXxnA

      Ginger Zee (@Ginger_Zee) June 4, 2014

      Combine that with the extreme outflow winds from the storm gusting 50-80 mph and it takes sand blasting to a whole new level:

      Check out the hail damage in Blair, Nebraska. @WCL_Shawn pic.twitter.com/ExVyDk2LW2

      Ivory (@ivory_doug) June 3, 2014

      And here is video from the hail storm showing tennis ball-sized hail stones -- this taken from Norfolk, Nebraska: (Warning, there is a little off-color language in there)



      What makes the hail so large?

      In case you missed it from my hail blog earlier this week, it's intense updrafts and the altitude of the storms that help the hailstones grow so large. The updrafts push raindrops up into the higher reaches of the cloud where it's well below freezing and the raindrops freeze into an ice pellet.

      The pellet eventually gets too heavy for the tip of the updraft and falls back toward the Earth, getting wet again as it falls through more raindrops. It encounters the stronger updraft at the base of the cloud and gets shot upward again into the sub-freezing temperatures where the water on the pellet freezes again, adding another layer of ice. That pellet falls, gets wet, hits the updraft, goes back up, and grows again with another layer of ice.

      This process repeats until the hail stone is heavier than the updraft can support it and it finally falls to the ground. The stronger the updraft, the larger the hailstone can grow. It's said a 56 mph updraft will support a golf-ball-sized hailstone, so the updrafts in these particular hailstorms were extreme!

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