Houston is bracing for heavy rain bands and flash floods.
Another detail map. I change it to show participation and lengthen it to 24 hour totals and then zoom it to get more reporting stations detail.
It is very awkward for Apple iOS but it may work okay for the DOS users.
Daily Hydrometeorological Products
Issued by NWS Houston/Galveston, TX
http://forecast.weather.gov/product.php?site=NWS&product=HYD&issuedby=HGX
Text data, looks like it only gets updated daily. Work a quick look.