Photos from urban, flash, and arroyo flooding in Rio Grande City, Edinburg/McAllen/San Juan, and eastern Cameron County during and after torrential rains of September 26–28, 2014 |
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When It Rained, It Poured! Ark Needed? Pockets of the Upper, Middle, and Lower RGV Flooded, September 26–27, 2014 |
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Graphical depiction of some atmospheric reasons for the flooding rainfall in South Texas, September 26–28, 2014 September 2014, already with above average rainfall in hand and plenty of lush, green grass and brush as a result, finished with a flourish as a slow moving upper level disturbance (large red "L" above) seeded the high levels of the atmosphere with moisture and helped focus/enhance tropical moisture closer to the earth’s surface along a trough of low pressure (smaller red "L"), from September 25th through 28th. The result was a combination of collisions that led to life and property threatening flooding across different locations in the Rio Grande Valley between Friday night, September 26th, and early Sunday morning, September 28th. By the time the final weekend of September 2014 ended, Valley–wide rainfall would be the largest for a single month since July 2008, when early month rains were overwhelmed by widespread flooding from Hurricane Dolly. The repeated rainfall overcame comparative months of September 2010 and June 2010. September 26, Evening: Rio Grande City Washout Loop of radar composite reflectivity across southern Starr County, from 745 PM through 858 PM September 26th, around the time that the worst flooding began in Rio Grande City and nearby areas. Data viewer credit: Plymouth State Weather Center. |
Loop of radar composite reflectivity across central Hidalgo County, from 221 through 4 PM September 27th. Radar and surface reports suggested 2 to 3 inches in an hour or less in some areas, creating a combination of urban and flash flooding. Data viewer credit: Plymouth State Weather Center. September 27, Afternoon: Mid Valley Mess September 27–28: Laguna Madre Lakes? Loop of radar composite reflectivity across eastern Cameron County, from 727 through 858 PM September 27th. Radar and surface reports suggested 2 inches an hour at times. Data viewer credit: Plymouth State Weather Center. |
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On South Padre Island, several rounds of showers and thunderstorms dropped between 4 and 6 inches throughout the day and evening, adding another layer of hazard to an already rough and confused surf (and on and off showers since the 25th) which pushed up to the dunes at high tide on the 26th and 27th. The heavy rain flooded most roads with 1 to 2 feet of water during the afternoon of the 27th. |
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Rainfall, measured and estimated, for Deep South Texas and the Rio Grande Valley between 7 AM September 25 and 7 AM September 28, 2014 |
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