How to send alert every X minutes as long as a temperature sensor is above 32 degrees

Hi. I have a temperature sensor. I would like to receive an alert that says “Refrigerator Temperature Above 32 Degrees”, every 30 minutes, for as long as the temperature is above 32 degrees.

I have tried automations to no avail.

This seems very simple but I am not super fluent with HA so am having trouble figuring out how to do this. Any ideas? Thanks!

See this section in particular: https://www.home-assistant.io/integrations/alert/#complex-alert-criteria