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On June 28, Marble Falls got close to 19 inches of rain -- sweeping cars, trailers and even people downstream. Joe Arellano, the meteorologist in charge for the National Weather Service says it was rather unusual.
"I would classify it at least as a 100-year event -- getting 18 inches plus is not something we see very often," he said.
These extreme rain events -- or "rain bombs" -- started occurring in mid June. The first to be hit was Gainesville, Texas. At least six people died when more than 8 inches of rain fell there.
Ten days later Marble Falls was struck. On July 2, Corpus Christi picked up almost 10 inches of rain. People had to be rescued from roof tops. This past weekend, 10 to 15 inches fell upstream of D'Hannis.
The words "rain bomb" are not actually a meteorological term. They were used by a National Weather Service forecaster to describe what happened in Marble Falls and just caught on.
Thank you (I hope this is the right forum!!) (And I sure hope any TD, TS or H that occur are fishes this year!)
"Bomb" is a description that is used fairly often in colloquial meteospeak. It can get applied to just about anything that could be loosely described as, well, a "bomb," with a "rain bomb" being one application of the word.
More formally, when discussing very heavy rain events, mets may describe them as "QPF Bombs" - or Quantitative Precipitation Forecast *Bombs*, when the models forecast and/or verify such events.
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