Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

Public Advisory (TCP)

A plain-language interpretation of the JTWC warning bulletin.
Provides latest information on tropical storm/typhoon watches and warnings.
Issued at least every 6 hours when a tropical cyclone is expected to affect WFO Guam's Area of Responsibility within 48 hours.

Local Statement (HLS)

Specific forecast for each island under a watch or warning, including rain, wind, surf, storm surge and coastal inundation, as well as recommended preparations.

Tropical Cyclone Update (TCU)

Hourly estimated position of a tropical cyclone within the range (about 230 miles) of Guam's Doppler radar.
Issued hourly near the top of the hour when a center fix is available.
May be issued at any time if a significant change occurs in the development or progress of a tropical cyclone.