I have requested for mobile updates on cities for rain, high/ low temperatures but I am not getting any alerts at all.

[aviator1970]

I am not getting any mobile Alerts on my phone. This is inspite of signing up for them.

[petra.pik]

Hello @aviator1970, would you upload a screenshot of your alert setting?

The operator in the settings works as AND, not OR. So in case, you have set at least 5 mm of rain, 2 cm of snow, temperature above 25 °C, you will receive notification in case all of these conditions are met, which is unlikely.
You have to have a separate notification for each condition.