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Freak flooding in Guadalajara after a massive hail storm. Pictures on BBC:
Six suburbs in the Mexican city of Guadalajara were carpeted in a thick layer of ice after a heavy hailstorm. The ice was up to 1.5m (5ft) thick in places, half-burying vehicles.
[...] Hailstorms form when warm, moist air from the surface rises upwards forming showers and storms. Temperatures higher up, even in summer, can get well below 0C and so ice crystals form along with something called "supercooled water" which then grows into pellets of ice.
In severe thunderstorms, air can rise rapidly and is able to hold up these hailstones and allow them to expand in size. Eventually they get too heavy and fall to the ground.
In warmer parts of the year, such as in Guadalajara which has maximum temperatures of around 31-32C [(87-90 °F)] in June, more moisture is available, contributing to the formation of hailstorms.
Temperatures this month have been higher than normal with Torreon, to the north of Guadalajara, reaching highs of 37C [(99 °F)].
Hm, I wonder if somebody is going to mention anthropogenic warming with this?
(Score: 2) by pipedwho on Tuesday July 02 2019, @02:27AM
If they were golf ball size or larger, you'd see dimples on the car bodies and lots of smashed car windows. Luckily they look like the tiny hail stones. Not like the huge stones we sometimes get down here. Largest I've seen is half-brick sized chunks bouncing off the street. Roof tiles shattered, and cars in serious disrepair. People crapping their pants as they run for cover. The next day, all the roofs in the affected areas are a patchwork of terracotta tiles and blue tarpaulins.