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Public Information Statement
National Weather Service San Francisco Bay Area
221 PM PDT Thu Apr 24 2025

...Public Information Statement...

...ANTICIPATED OUTAGE OF SOME PRODUCTS AND SERVICES DUE TO A MAJOR
SOFTWARE UPDATE NEXT WEEK...

A significant software update at the NWS Weather Forecast Office in
San Francisco / Monterey (MTR) will take place from Monday April 28
through Wendesday April 30 2025 that will result in an extended
outage of the operational forecast system. The majority of analysis
and forecast products, including all watches, warnings, and
advisories, will be provided by designated service backup offices.
However, there will still be a variety of impacts and outages. MTR
plans to resume normal forecast operations by the evening of
Wednesday April 30th.

Known impacts include:

1) All NOAA Weather Radio (NWR) transmitters in the Bay Area and
Central Coast will be unavailable. The transmitters affected are:

*North Bay Area Broadcast (WZ2504) transmitting from Sonoma County
at 162.475 MHz.
*North Bay Marine broadcast (KDX-54) transmitting from Big Rock
Ridge at 162.50 MHz.
*East Bay Area Broadcast (KZZ-75) transmitting from Mt. Diablo at
162.425 MHz.
*San Francisco Area Broadcast (KHB-49) transmitting from Mt. Pise
at 162.40 MHz.
*San Francisco / Monterey Bay Area Marine Broadcast (WWF-64)
transmitting from Mt. Umunhum at 162.45 MHz.
*San Jose / Monterey Bay Area Broadcast (KEC-49) transmitting from
Mt. Umunhum at 162.55 MHz.

Please note that with the NWRs being down, related watches warnings
from the Emergency Alert System (EAS) will not be transmitted via
the NWR and some non-weather radios may be impacted. Wireless
Emergency Alerts (WEA) that are sent to cell phones will not be
affected and will continue to operate as normal. Though inclement
weather is not expected, it is always good to have multiple ways to
get watches, warning, and weather information. To learn more visit
weather.gov/safety/prepardness.

2) Text products likely to be impacted include the Surf Reports
(OMRMTR), the Daily Climate Reports (e.g., CLISFO), and Monthly
Summaries (e.g., CF6SFO).

There may be other issues across weather.gov/mtr as well.

If you have any questions about this outage, please contact:

Brian Garcia Warning Coordination Meteorologist
brian.garcia@noaa.gov 831-656-1725

Lamont Bain Science and Operations Officer
lamont.bain@noaa.gov 831-656-1725


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