What is the difference between a Flood Watch and a Flood Warning issued by the National Weather Service? Flash Flood Warning: Take Action! A Flash Flood Warning is issued when a flash flood is imminent or occurring. If you are in a flood …

Here you will find an interactive flood map, information describing the different types of flooding and educational material. You will also learn how the National Weather Service keeps you aware of potentially dangerous flooding situations through alerts and warnings.

A Flood Warning is issued to inform the public of flooding that poses a serious threat to life and/or property. A Flood Warning may be issued hours to days in advance of the onset of flooding based on forecast conditions. Floods occurring along a river usually contain river stage (level) forecasts. +

The NWS Alerts site provides watches, warnings, advisories, and similar products. Visit NWS Common Alerting Protocol for CAP v1.2 for updated documentation. It is recommended to start by selecting your location.

Click on a state to learn more about the types of flooding experienced there and how residents can protect their lives and property. You will also find information on the top 5 floods for each state, learn which National Weather Service offices forecast for the area and more!

The following products are the most recent watches/warnings/advisories/statements that have been issued by the Weather Forecast Office in Honolulu, HI for the state of Hawaii, and the surrounding waters.

A prolonged atmospheric river event will continue to bring moderate to heavy rain with a risk for flooding to northern into central California with heavy mountain snow in the Sierras, southern Cascades, and northern Rockies through midweek.

The National Weather Service office in Sioux Falls, SD, has warning and forecast responsibility for 24 counties in Southeast and East Central South Dakota, 8 counties in Southwest Minnesota, 11 counties in Northwest Iowa, and 2 counties in Extreme Northeast Nebraska.

Flood warnings are issued for any high flow, overflow, or inundation not covered by flash flood warning products. There are two general types of flood warnings - areal flood warnings and river flood warnings issued for specific forecast points.

Flood Potential Outlook. River Flood Statement. Flood Watch. Flood Warnings. Hazardous Weather Outlook. Non-Precipitation