A short wave trough moved around the southern end of an upper level trough of low pressure and combined with deep moisture from the Gulf of Mexico to cause isolated thunderstorms a few of which produced large hail.
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The episode as NWS EWX wrote it up.
A short wave trough moved around the southern end of an upper level trough of low pressure and combined with deep moisture from the Gulf of Mexico to cause isolated thunderstorms a few of which produced large hail.
The Austin/San Antonio radar (KEWX), 116 km away, was scanning. The volume nearest the first event began at 21:35 UTC.
1 hail. Local standard time, as filed.
A thunderstorm produced nickel to quarter size hail along Lost Hollow Road just east of Highway 16 between Llano and Willow City.
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Every storm in Texas in 2010Every state in 2010This day in weather historyWarnings in Texas, October 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 261122.