I don't like this political post. The SAR stand for "Special Administrative Region (of the People's Republic of China)". You use "Hong Kong SAR", but said it isn't in China. Make it more political.
@FransBetsy
Hi,
Windy visualizes data from weather models and I am not sure that these models provide a temperature prediction at 10cm above ground surface. Then if you consider the resolution of the models that Windy shows in your region, a 10cm-temperature will not be very reliable when the resolution is about 10km and the risk of frost depends on topography and other local factors.
Windy gives you the possibility to make your own assessment for the risk of frost. This risk depends on:
Temperature: air temperature at 2m
Humidity: air with high content of water vapor prevents quick night cooling, because it reduces the infrared radiation from the ground.
Dew point: it is the temperature at which the dew forms. The lower this temperature is predicted, the higher is the cooling expected. If this temperature is negative, the risk of freezing will be really high.
Clouds: cloudiness reduces the infrared radiation from the ground and thus the risk of frost. Clear sky at night increases the risk of frost.
Cloud height: low clouds are more efficient to reduce to risk of frost than high clouds.
Wind: the wind blows the cold air near the soil, mix it with the layers above and decreases the risk of frost.
All these parameters are provided by Windy, as a layer and also in the Meteogram for a given location.
So you can try to make your own assessment using these parameters.
http://www.fao.org/3/y7223e/y7223e07.htm#TopOfPage
@super-jet-100 @roynettematthieu
Hi, you can download the planned route and then upload it to Windy as KLM/GPX file and monitor it there or save the URL.
@jimgub
Some explanations
https://blog.metservice.com/Radar_Interference
https://community.windy.com/topic/8227/a-strange-movie/3
also
https://www.radartutorial.eu/15.weather/wx21.en.html
and
https://community.windy.com/topic/8453/bug-in-europe-radar/5
@henzim Hi, if you mean how can you use Route & Planner option and see webcam at the same time, it is not possible. If you are using desktop, you can open another window.
@Korina So sorry I missed your reply! I can't see a way on your forum to be notified of replies in a specific thread you follow or a way to get notified of direct replies. :(
Anyway, I was thinking it might be better for the request to come from your end since you'd have to be asking for the access as well at the same time? They seem really responsive and helpful. What they have available right now is:
3 hourly radar reflectivity (rainfall rate) images, in colour: available via MetWeb FTP access - contact us and ask for Open Access Rain Radar images
Let me know if don't hear from them and I can try emailing the guy I was conversing with again. Thanks!
@ChadTyler
@Gkikas-LGPZ
Both of you are probably right. I understand that Rain accumulation map figures are from reference time of the model run. In the Meteogram if you show UTC time (in Settings select Display all time in UTC) you see missing hours from the run start in North America. Here in Europe we are closer to UTC and there are less discrepancies. It's just an assumption, I’ve not checked everywhere.
@rsargent
Hello Randy, if you are looking for older images from the past months, you need to contact the provider of the webcam, who may store even older imagery than you see on Windy.
Here is where you find the provider info (in the webcam detail) -
