Android (well certainly Samsung), now does insane (mis)management of the alerts.
When we here in Auckland got the storm warning a couple of months ago, many (android) users complained that they couldnt find the messages to re-read after they had initially dismissed them.
My wifes old Galaxy S7 (Android 8.0) had them in the messages app which seems a logical place to look.
Under Android 13 (Samsung One UI 5.1), to find them now, you need to go to Settings/Notifications/Advanced Settings/Wireless emergency alerts/Emergency alert history.
As if anyone will easily recall that after a few months - Sometimes the things developers think are ok, just astound me.