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The USNO websites aa.usno.navy.mil, ad.usno.navy.mil, aristarchus.usno.navy.mil, maia.usno.navy.mil, rorf.usno.navy.mil, and toshi.usno.navy.mil are undergoing modernization efforts. The expected completion of the work and return of service is estimated as 30 April 2020. Please submit a requirements form to the USNOPAO if the information you are seeking is not accessible via other means.

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The Sky This Week: The Sky This Week, 2019 November 5 - 12; More…

Tropical Warning Information: Click here to go to Joint Typhoon Warning Center new site for North-West Pacific Ocean, South Pacific Ocean, and Indian Ocean Tropical Cyclone Warnings

Fleet Weather Center Norfolk Virginia Tropical Warning Information: Click here to go to Fleet Weather Center Norfolk new site for Atlantic Tropical Warnings