weather September 24, 2024 4:52 pm National Weather Service upgrades its radar systems In order to keep up with the atmosphere, the National Weather Service recently completed an upgrade to its weather radars. Meteorologist Vianey Arana reports. US & World Videos 3:36 Jeff's forecast: What will finally get rid of this heat wave 3:05 Unrelenting fall heat wave punishes the Bay Area 2:44 Forecast: More high heat inland 1:58 Kari's forecast: More high heat inland 3:19 Triple-digit heat continues inland, impacting East Bay businesses