Why connects the Gateway to so many weather stations?

i have seen with netstat that the geateway make connection too many different weather stations: Weather station BUXX0005 - Sofia Weather station UKXX3140 - Bingham Weather station SWXX0007 - Gothenburg Weather station GMXX0040 - Frankfurt am Main Weather station NLXX0053 - Almere Stad
and some more.

Why are all these connections? All with SYN_SENT

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