Question for weather nerds

[OneGrassRoot]

Do you know of any sites or accounts you follow that report the extent of flooding in the case of storm surges, via satellite technology or something?

Whenever there is a storm surge I always wonder how far it is extending inland, worried about friends in harm's way. Do any accounts report surge extends x number of blocks from shore or something like that, or is it a matter of waiting for aerial reports and reports on the ground the next day?

Thanks!