Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

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 >

GEOGRAPHICAL COVERAGE - The images below present the radio frequency
coverage plots for the NWWS, EMWIN and ISCS satellite broadcasts and the NWR
VHF radio broadcasts. Any potential user will need to ensure they are in the respective footprint for signal reception.

NWWS - NOAA Weather Wire Service

Source: (https://www.satbeams.com/footprints)

-- NWWS Coverage:

EMWIN - Emergency Managers Weather Information Network

Source: https://noaasis.noaa.gov/GOES/HRIT/broadcast.html

-- HRIT/EMWIN Plot:

NWR - NOAA Weather Radio

Source: https://www.weather.gov/media/nwr/NWR_Propagation.pdf

-- NWR Plot

ISCS - International Services and Communication Systems

-- ISCS GNC-A Plot

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

Coverage Comparison