A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >
National Weather Service Weather Forecast Offices (WFOs) that issue tropical storm, hurricane, and/or storm surge watches and warnings provide Hurricane Threats and Impacts graphics that convey a reasonable worst-case forecast that incorporates uncertainty to best tell our users what conditions to prepare for during a tropical cyclone event. These graphics are available in KML format using the links provided below.
These graphics are also available through the National Digital Forecast Database and on interactive web pages hosted by the WFOs affected by the tropical cyclone. These webpages use the following url format, where “wfo” should be replaced with the 3 letter identifier for the WFO of interest (i.e., WFO Philadelphia = “phl”):
NWS Eastern Region WFOs - https://www.weather.gov/wfo/tropical#hti
NWS Southern and Western Region WFOs - https://www.weather.gov/srh/tropical?office=wfo#hti
WFO Honolulu - https://www.weather.gov/hfo/hti
More information can be found on this Hurricane Threats and Impacts Graphics Frequently Asked Questions reference.
