Event narrative (NOAA)
Some of the heaviest rainfall associated with the historic rainfall of March 26-28 fell in Harlingen. In total, nearly 19 inches was measured by trusted sources, with radar estimates up to 20.5 inches. During the peak of the multiple bands from early evening through just after midnight on the 28th, estimated rainfall rates were at least 3 per hour for at least 3 hours, including at Harlingen/Valley International Airport, where 5 fell in just 90 minutes before the power went out due to lightning strikes.||Hundreds, if not a thousand, structures had flood damage ranging from affected to destroyed. Damage details will be available for this part of Cameron County, which stretches from Harlingen through Rio Hondo and southwest to San Benito, at a later date in 2025. Harder hit areas reported
Other notable flash flood events in Texas
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.