Mark Lorando is the managing editor of audience for the Houston Chronicle. New subscribers can sign up for unlimited digital access to the Houston Chronicle here. Houston Water Flood Hazards includes common GIS data features such as: Floodway in Harris County. Print subscribers can activate their digital subscription here. “We’re confident our subscribers will find it helpful, and we encourage all readers to come take a look.”Ĭurrent subscribers can access the Texas Flood Map and Tracker – and other exclusive online tools such as the statewide and national COVID case tracker and Houston-area COVID testing site map – by logging into the site. “We are excited to add this vital and useful tool to the powerful journalism, podcasts and video already available to subscribers on ,” said Executive Editor Steve Riley. National Weather Service flood warnings and National Hurricane Center storm surge predictions also will be incorporated into the map during major weather events. Radar detects the reflectivity of the precipitation and converts it to rainfall rate – blue for light rainfall of at least 0.01 inches per hour, red at 1 inch per hour, and pink at 8 inches per hour or more.īoth the live weather and flood risk pages will automatically update with “likely” or “possible” flooding alerts from Harris County Flood Control District gauges, as well as Houston Chronicle and Houston Community Newspaper staff reports of street closures and flooding across the Houston region. Live weather updates are provided by RainViewer and updated every 10 minutes. The risk data is provided by FloodFactor, a free online tool created by First Street Foundation, a nonprofit research and technology group that uses historical environmental data and climate change projections to calculate the likelihood of floods. Locations are color-coded to the percentage of properties within a given census tract that are at risk of flooding in the next 30 years due to high-intensity rainfall, overflowing rivers, streams and bayous, high tides and/or coastal storm surge. To use the flood risk map, enter a property address in the search bar or click/pinch to zoom and drag the map to the area that interests you. The tracker also has utility during non-weather events, as a source of long-term flood-risk data for neighborhoods across the Houston region and state of Texas. TEXAS FLOOD MAP: Your guide to long-term flood-risk data for Houston neighborhoods The tracker is a powerful interactive tool that allows Houston Chronicle subscribers to see not only rainfall location and intensity, but real-time, continuously updated flooding alerts and street closures as storms sweep through the area. A big question this year for homebuyers who are looking at the housing market in Houston TX and are concerned about their homes resale value is, Should I buy.
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