314
NWUS56 KMTR 281207
LSRMTR
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
407 AM PST SUN DEC 28 2025
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
..REMARKS..
0315 AM RAIN 2 NNE PIEDMONT 37.85N 122.22W
12/24/2025 E0.50 INCH ALAMEDA CA BROADCAST MEDIA
BROADCAST MEDIA REPORTED THAT CALTRANS HAD
REPORTED THAT THE CALDECOTT TUNNEL RECEIVED
DAMAGE FROM HEAVY RAIN ON CHRISTMAS EVE.
RAINFALL RATES THAT MORNING WERE AROUND
0.5-1.0/HR. HEAVY RAIN AND INCLEMENT WEATHER
DAMAGED ELECTRICAL EQUIPMENT AND RESULTING
IN VENTILATION ISSUES FOR 2 OF THE BORES.
THESE BORES WERE CLOSED FOR 2 DAYS. TIME OF
HEAVIEST RAIN ESTIMATED BY RADAR AND NEARBY
OBSERVATIONS.
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