Mastodon bots which mirror the NWS warnings back them up
What failed was local officials not succeeding in alerting people — in large part because they had plan or mechanism available to do so with the roughly one-hour warning that current meteorology can provide for specific flash floods like this.
Archived copies of the article:
People in Texarkana get the same alerts. They’re statewide. It has nothing to do with Brownsville particularly. I just picked someplace far away from the panhandle.