First real heat wave to hit Valley bringing dangerous temps

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First real heat wave to hit Valley bringing dangerous temps

The Rio Grande Valley is in for dangerously hot temperatures this week through Thursday, according to the National Weather Service Brownsville-RGV station. The first official first day of summer is still six weeks away. Still, May 9 is likely to see record high temperatures across deep South Texas, according to NWS meteorologists, who warned that very warm temperatures combined with high humidity will push heat-index values well over 100 degrees…