NWS crowdsources storm damage
NWS Bay Area is actively crowdsourcing reports on recent heavy rain and wind damage to help build a local picture of outages and repair needs. The agency encouraged residents to submit observations that could inform timely DIY repairs and safety checks (x.com).
The National Weather Service office for the San Francisco Bay Area is asking residents to send in reports of rain, wind and storm damage as late-season storms move across the region. (weather.gov, weather.gov) The Bay Area forecast office said on April 10 that rain and thunderstorms could last through the weekend, with 1 to 2 inches of rain in many areas and up to 4 inches in the coastal ranges. Forecasters also warned that thunderstorms could bring lightning, small hail, locally heavy rain and erratic wind gusts, with waterspouts or weak tornadoes possible on Saturday. (weather.gov) Those public reports fill gaps between airport sensors, radar estimates and utility outage maps. The National Weather Service’s storm-report system lets people log wind damage, flooding, hail and rainfall with a time and location, and local offices can turn those observations into official Local Storm Reports. (weather.gov, weather.gov, weather.gov) The agency has been building that kind of ground-level record for decades. The National Centers for Environmental Information says the federal Storm Events Database is compiled from National Weather Service reports and documents storms that cause property damage, injuries, deaths or major disruption. (ncei.noaa.gov) For Bay Area forecasters, that matters in a region where one storm can hit the coast, redwood hills and inland valleys very differently. The local office’s archive includes major storm summaries from February 2024, December 2024 and earlier atmospheric river events, showing how damage reports become part of the region’s weather record. (weather.gov) The National Weather Service also relies on a larger volunteer network for these checks from the ground. Its Skywarn program says it has between 350,000 and 400,000 trained spotters nationwide who send in timely reports on severe weather and its impacts. (weather.gov) The public guidance is basic but specific: report what happened, where it happened and when it happened, and include photos if available. National Weather Service reporting pages say the most useful submissions describe damage, flooding, hail size or rainfall totals as precisely as possible. (weather.gov, weather.gov) As the Bay Area dries out and crews work through outages or cleanup, those reports help turn scattered neighborhood damage into a verified map of what the storm actually did. (weather.gov, ncei.noaa.gov)
