Real-time weather radar images (Echo Intensity) are displayed on Google Maps. Current motion of rain clouds can be used as disaster information about rainfall and snowfall. The update of images is every ten minutes, and images in the last 120 hours can be switched to display.
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Radar Images (Last 120 Hours)

< First< -6h< -1h< -10min+10min >+1h >+6h >Last >

(Notice) If the switching of the images does not look smoothly, please try Google Chrome browser or Opera browser. The animation of the clouds is relatively smooth. And the movement of the clouds is even smoother if you read images first into the cache and move the time slider. When a typhoon is in the image, you can track the position of the typhoon.

Color Legend of Radar Images

The following shows the color legend of radar images.

Precipitation, Radar Echo Intensity (Unit: Milimeters)

-0 0-1 1-2 2-4 4-8 8-12 12-16 16-24 24-32 32-40 40-48 48-56 56-64 64-80 80-

Radar Echo Height (Unit: Kilometers)

-0 0-2 2-4 4-6 6-8 8-10 10-12 12-14 14-

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