
Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >
For NWWS-Open Interface message detail (other than header information) XMMP reader software (commercial or user-developed) is required.
To request a user_id and password for NWWS Open Interface access, please email NWWS.Issue@noaa.gov.
Be sure to include the following:
Remember: If multiple accounts are run from the same computer system the system will shut down.
Note: NWS processing of your request may take as long as 10-days or more depending on weather conditions (critical weather days) and NWS priority requirements.