Irregardless to whether or not Tempest stores the data. Tempest does integrate with IFTTT and the ability to push your data to IFTTT and then to Google Sheets is a very reasonable alternative to relying on WeatherFlow data. You can keep this data as long as you want. Just use the “New Observation” trigger in IFTTT and write it to a Google Sheets doc. Note… that for some odd reason, IFTTT limits logs to 2000 lines in Sheets so it’ll roll it over and create a new sheet after it hits that threshold. There is a solution to this documented here Google Sheets, IFTTT and the 2000 row limit - a query [EDIT - and Solution]
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