<![CDATA[Colour range on radar is too small to identify heavy rain.]]>If you take the latest heavy rain in Valencia Spain on the 29th Oct 2024, there is not a lot of colour difference between the heavy rain radar image and the not so heavy rain. The colour range needs to be more so we can easily identify heavy rain.

]]>https://community.windy.com/topic/37439/colour-range-on-radar-is-too-small-to-identify-heavy-rainRSS for NodeMon, 20 Jul 2026 16:49:37 GMTMon, 04 Nov 2024 23:41:22 GMT60<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Fri, 08 Nov 2024 12:09:19 GMT]]>@Gkikas-LGPZ
It’s already huge !

]]>https://community.windy.com/post/202812https://community.windy.com/post/202812Fri, 08 Nov 2024 12:09:19 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Fri, 08 Nov 2024 11:36:42 GMT]]>... few days ago, in Valencia
184 mm in 1 hr.
1000009106.jpg

]]>https://community.windy.com/post/202811https://community.windy.com/post/202811Fri, 08 Nov 2024 11:36:42 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Wed, 06 Nov 2024 11:16:56 GMT]]>@idefix37
Yes! No rain gauge can measure such a heavy rain!

For the accuracy of weather radar in heavy rain, read:
https://hess.copernicus.org/articles/24/3157/2020/
In general ..."Gauges are known to underestimate intensity by up to 25 %–30 % in heavy rain and windy conditions. On the other hand, radar is known to suffer from signal attenuation, non-uniform beam filling, clutter, hail contamination and overshooting".
00b3ad77-13ae-4b14-b72b-b31f45375d3f-hess-24-3157-2020-f05-thumb.png

]]>https://community.windy.com/post/202733https://community.windy.com/post/202733Wed, 06 Nov 2024 11:16:56 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Wed, 06 Nov 2024 10:53:11 GMT]]>@Gkikas-LGPZ
Thank you, it is clear.
So 64842mm/h and more is phycally a nonsense ?

]]>https://community.windy.com/post/202730https://community.windy.com/post/202730Wed, 06 Nov 2024 10:53:11 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Wed, 06 Nov 2024 09:48:48 GMT]]>@idefix37
https://community.windy.com/topic/20770/showing-rain-on-rader-but-its-actually-sunny/2

NOAA's upper limit is: more than 75 dBz

https://en.wikipedia.org/wiki/DBZ_(meteorology)#/media/File:NOAA_Doppler_DBZ_scale.jpg

In fact, in a wx.radar screen (as you can see in my profile's avatar image)
wx.radar.jpg
the upper limit is "more than 72 (more than 400mm/hr)".

]]>https://community.windy.com/post/202729https://community.windy.com/post/202729Wed, 06 Nov 2024 09:48:48 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Tue, 05 Nov 2024 18:30:58 GMT]]>@Gkikas-LGPZ
Hello, what do you think about the upper limit of this color scale with huge rain rates (color steps in black and gray).
Does this correspond to real and possible radar echoes expressed in dBz?

]]>https://community.windy.com/post/202708https://community.windy.com/post/202708Tue, 05 Nov 2024 18:30:58 GMT<![CDATA[Reply to Colour range on radar is too small to identify heavy rain. on Tue, 05 Nov 2024 07:48:08 GMT]]>@savlettex
You can change the color range in Settings -> Customize color scale
https://community.windy.com/topic/10336/customize-the-color-scales-of-windy-layers?_=1730791883659

432180F3-0D21-47A5-B671-545AFDBDE565.jpeg

This is my customized scale with bright red for 50-60 dBz corresponding to the lower step for the risk of hail.
The scale is a bit strange at the top end. I think black and grey should be displayed for lower rain rate ?

]]>https://community.windy.com/post/202672https://community.windy.com/post/202672Tue, 05 Nov 2024 07:48:08 GMT