This very well received app is available in the iTunes store at no charge. It provides real-time information about open shelters, their location (with maps) and information about current capacity. In Version 1.1, only the edit date changed to reflect the last time and date the bed count was updated, rather than the last time the overall shelter facility or status information was updated. The update changes that so that users know not only how much room a specific shelter has, but the most recent time and data that bed count was updated.
You can download your own at the App Store, or you can go the Red Cross shelter page (expect the web map view is blank until you enter some location information). The App has been downloaded many tens of thousands of times, and is used thousands of times a day by professionals and citizens alike.
As we like to say, this is the one app you hope you'll never need; and the one app you will most wish you had on your phone when you do.