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USGS Water Data Notification Service

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Boating safety tips are available from the U.S. Coast Guard.

NOTE: Station Numbers for Iowa precipitation gages have changed (see list).


We can notify you when changes are made to this system or if there are any significant system events. If you would like to be informed, please subscribe to NWISWEB-Notification. If you are already subscribed and wish to unsubscribe, please use the same form. If your email address has changed, simply unsubscribe with your old email address, and resubscribe with your new email address.

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If you are visually impaired, please send us an email and we will subscribe or unsubscribe to WDFN notifications.