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 2:09 Kari's forecast: Hotter inland, hazy 3:56 Bay Area's autumn heat wave continues with widespread 90s, 100s 2:49 Jeff's Forecast: Heat wave to bring temps as high as 107 3:21 October heat wave in the Bay Area 5:15 Historic October heat in the Bay Area