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 2:38 Jeff's Forecast: Heat wave stays but temps will gradually dip 3:39 Jeff's forecast: Heat wave extended 2:48 Another day of unrelenting heat in the Bay Area 2:45 Forecast: Hotter inland, hazy 5:00 Bay Area's autumn heat wave continues with widespread 90s, 100s