Yesterday, GOESWest detected plentiful lightning over Southern California. For LightningSafetyAwarenessWeek, learn how the Geostationary Lightning Mapper (GLM) instrument onboard NOAA satellites helps keep us safe during thunderstorms.
, are a major hazard during thunderstorms. Knowing when and where lightning is occurring can tell us a lot about a storm - including its location, whether it’s intensifying, and if the storm is capable of producing severe weather.
While the National Lightning Detection Network uses more than 100 ground-based stations across the U.S. to detect cloud-to-ground and intra-cloud lightning flashes, the GLM offers much greater spatial coverage, and in many cases detects lightning flashes before ground-based lightning detection systems. The earlier we can detect lightning, the more time forecasters have to monitor a thunderstorm, and issue severe thunderstorm warnings.
Recently, about two dozen forecasters participated in a pilot program to test these new lightning detection products while tracking thunderstorms around different parts of the country.
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