Bay News 9 Doppler Radar Live (2024)

FAQs

Is there a Bay News 9 app? ›

For interactive radar on your smartphone, get the new, free Spectrum Bay News 9 app for Apple iOS and Android.

Velocity data is derived from the phase, or doppler shift of the returned energy. The radar's computers will calculate the shift and determine whether the precipitation is moving toward or away from the radar, and how fast, then apply a corresponding color to those directions and speeds.

Doppler weather radars are remote sensing instruments and are capable of detecting particle type (rain, snow, hail, insects, etc), intensity, and motion. Radar data can be used to determine the structure of storms and to help with predicting severity of storms.

Doppler Radar

This new radar allowed scientists to measure motion inside storms for the very first time, providing clues into the development of severe weather.

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The National Weather Service's 148 WSR-88D Doppler radars can detect most precipitation within approximately 90 mi of the radar, and intense rain or snow within approximately 155 mi. However, light rain, light snow, or drizzle from shallow cloud weather systems are not necessarily detected.

The WSR-88D is one of the most powerful and advanced Weather Surveillance Doppler Radar in the world. Since first being built and tested in 1988, it has been installed and used operationally at over 160 locations across the United States, including Alaska and Hawaii.

On a weather radar map, a tornado is usually indicated by a smaller area of red surrounded by a larger area of green. However, modern radar systems can also indicate debris balls, a sign of a tornado on the ground.

The colors are typically a spectrum. The greens indicate light or moderate rainfall. Yellow, orange, and red indicate moderate to heavy rainfall and can also indicate hail. Whites or blues mean snowfall and pink indicates freezing rain, sleet, or a wintry mix.

Why is a Doppler radar better than a radar? ›

It does this by bouncing a microwave signal off a desired target and analyzing how the object's motion has altered the frequency of the returned signal. This variation gives direct and highly accurate measurements of the radial component of a target's velocity relative to the radar.

Yes, police can use radar in the rain. However, certain factors can affect the accuracy and efficiency of radar systems during bad weather. Our findings show that, while radar systems are robust, heavy rain can reduce their range.

The wavelength of the microwaves is smaller, so they can be transmitted as a beam signal in the desired directions. And also, microwaves do not change their path when it collides with any object. The microwaves may reflect from the object but it cannot change their path. Hence, it is used in radar.

You can find the 9Now app on your TV's home screen, or by searching the Google Play Store. On your remote, press the HOME button. You may find 9Now under the Featured apps or apps sections on your devices homepage. Select 9Now to launch the app or go to the Play Store to install.

The NBC Bay Area news and weather app connects you to top local news stories, weather forecasts, breaking news, live TV and investigative journalism.

On the Home screen main menu, navigate to the magnifying glass. Enter "WFTV" and select it in the search results. Click on the WFTV News app icon and install.

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