538 WUUS56 KMTR 241104 SVRMTR CAC001-085-241130- /O.NEW.KMTR.SV.W.0017.251224T1104Z-251224T1130Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service San Francisco CA 304 AM PST Wed Dec 24 2025 The National Weather Service in San Francisco has issued a * Severe Thunderstorm Warning for... Southwestern Alameda County in northern California... Northwestern Santa Clara County in northern California... * Until 330 AM PST. * At 304 AM PST, severe thunderstorms were located along a line from 5 miles southwest of San Lorenzo to 12 miles west of Boulder Creek, or along a line from 5 miles southwest of San Lorenzo to 17 miles west of Saratoga, moving northeast at 20 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... San Jose, Fremont, Hayward, Sunnyvale, Santa Clara, San Leandro, Mountain View, Union City, Milpitas, Palo Alto, Cupertino, Newark, Campbell, Saratoga, Los Altos, San Lorenzo, Castro Valley, Los Altos Hills, Rancho Rinconada Cdp and Fruitdale. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. Wind damage with these storms will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover. Seek shelter immediately inside a sturdy structure and stay away from windows. Torrential rainfall is also occurring with these storms and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3771 12209 3762 12198 3750 12192 3730 12191 3727 12212 3746 12212 3746 12198 3747 12196 3747 12205 3748 12203 3749 12205 3749 12204 3751 12208 3750 12211 3768 12217 TIME...MOT...LOC 1104Z 211DEG 18KT 3760 12217 3740 12213 3719 12233 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kennedy  077 WWUS56 KMTR 241105 SVSMTR Severe Weather Statement National Weather Service San Francisco CA 305 AM PST Wed Dec 24 2025 CAC081-085-087-241115- /O.CON.KMTR.SV.W.0016.000000T0000Z-251224T1115Z/ San Mateo CA-Santa Clara CA-Santa Cruz CA- 305 AM PST Wed Dec 24 2025 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM PST FOR SOUTHEASTERN SAN MATEO, NORTHWESTERN SANTA CLARA AND NORTHWESTERN SANTA CRUZ COUNTIES... At 305 AM PST, severe thunderstorms were located along a line from over San Francisco to 5 miles south of Half Moon Bay, or along a line from over San Francisco to 13 miles southwest of Belmont, moving north at 40 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Redwood City, Palo Alto, Menlo Park, Los Altos, San Carlos, East Palo Alto, Los Altos Hills, Atherton, Woodside, Stanford, North Fair Oaks, Portola Valley, West Menlo Park and Emerald Lake Hills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. Wind damage with these storms will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover. Seek shelter immediately inside a sturdy structure and stay away from windows. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage. && LAT...LON 3721 12241 3732 12233 3752 12226 3755 12222 3752 12225 3751 12224 3750 12222 3749 12223 3750 12218 3748 12215 3749 12214 3750 12216 3750 12213 3725 12212 3714 12234 TIME...MOT...LOC 1055Z 186DEG 34KT 3768 12243 3758 12234 3730 12249 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ KR  309 WHUS56 KMTR 241108 SMWMTR PZZ531-241145- /O.NEW.KMTR.MA.W.0039.251224T1108Z-251224T1145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service San Francisco CA 308 AM PST Wed Dec 24 2025 The National Weather Service in San Francisco has issued a * Special Marine Warning for... San Francisco Bay South of the Bay Bridge... * Until 345 AM PST. * At 308 AM PST, a severe thunderstorm was located 15 NM east of Pillar Point, moving northeast at 20 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Mainly open waters of San Francisco Bay South of the Bay Bridge. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 3755 12229 3769 12219 3767 12216 3760 12215 3758 12215 3756 12213 3753 12211 3751 12211 3752 12209 3746 12212 3747 12214 3748 12214 3748 12215 3749 12217 3749 12218 TIME...MOT...LOC 1108Z 211DEG 18KT 3755 12218 MAX HAIL SIZE...<.75 IN MAX WIND GUST...>50 KTS $$ Kennedy  133 WWUS56 KMTR 241113 SVSMTR Severe Weather Statement National Weather Service San Francisco CA 313 AM PST Wed Dec 24 2025 CAC081-085-087-241123- /O.EXP.KMTR.SV.W.0016.000000T0000Z-251224T1115Z/ San Mateo CA-Santa Clara CA-Santa Cruz CA- 313 AM PST Wed Dec 24 2025 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 315 AM PST FOR SOUTHEASTERN SAN MATEO, NORTHWESTERN SANTA CLARA AND NORTHWESTERN SANTA CRUZ COUNTIES... The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, gusty winds and heavy rain are still possible with these thunderstorms. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office. && LAT...LON 3721 12241 3732 12233 3752 12226 3755 12222 3752 12225 3751 12224 3750 12222 3749 12223 3750 12218 3748 12215 3749 12214 3750 12216 3750 12213 3725 12212 3714 12234 TIME...MOT...LOC 1105Z 186DEG 34KT 3778 12241 3768 12233 3740 12247 $$ KR  455 WHUS56 KLOX 241114 SMWLOX PZZ645-670-673-241245- /O.NEW.KLOX.MA.W.0075.251224T1114Z-251224T1245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service OXNARD CA 314 AM PST Wed Dec 24 2025 The National Weather Service in OXNARD has issued a * Special Marine Warning for... Point Piedras Blancas to Point Sal from 10 to 60 NM... Point Piedras Blancas to Point Sal westward out to 10 NM... Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm including San Miguel and Santa Rosa Islands... * Until 445 AM PST. * At 312 AM PST, Strong convective showers capable of producing waterspouts were located 20 nm west of Point Arguello, or 31 nm northwest of Point Conception, moving northeast at 40 knots. HAZARD...Waterspouts are possible and wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Point Sal... Point Arguello... and Point Conception. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3516 12077 3518 12073 3514 12065 3505 12063 3491 12067 3486 12061 3475 12064 3469 12060 3458 12064 3455 12062 3453 12053 3444 12046 3399 12072 3430 12133 3515 12126 3526 12090 TIME...MOT...LOC 1112Z 207DEG 42KT 3470 12104 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...50KTS $$ Lund/Black  888 WWUS56 KMTR 241115 SVSMTR Severe Weather Statement National Weather Service San Francisco CA 315 AM PST Wed Dec 24 2025 CAC085-241125- /O.CAN.KMTR.SV.W.0017.000000T0000Z-251224T1130Z/ Santa Clara CA- 315 AM PST Wed Dec 24 2025 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTHWESTERN SANTA CLARA COUNTY... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. However, heavy rain is still possible with these thunderstorms. && LAT...LON 3749 12205 3749 12204 3748 12203 3750 12204 3751 12208 3750 12211 3768 12217 3771 12209 3762 12198 3750 12192 3748 12192 3746 12195 3746 12198 3747 12196 3747 12205 3748 12204 TIME...MOT...LOC 1104Z 211DEG 18KT 3760 12217 3740 12213 3719 12233 $$ CAC001-241130- /O.CON.KMTR.SV.W.0017.000000T0000Z-251224T1130Z/ Alameda CA- 315 AM PST Wed Dec 24 2025 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM PST FOR SOUTHWESTERN ALAMEDA COUNTY... At 315 AM PST, severe thunderstorms were located along a line from over San Lorenzo to 13 miles south of Woodside, or along a line from over San Lorenzo to 14 miles southwest of Palo Alto, moving northeast at 20 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... San Jose, Fremont, Hayward, San Leandro, Union City, Newark, San Lorenzo, Castro Valley, Fairview, Cherryland and Ashland. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. Wind damage with these storms will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover. Seek shelter immediately inside a sturdy structure and stay away from windows. Torrential rainfall is also occurring with these storms and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3749 12205 3749 12204 3748 12203 3750 12204 3751 12208 3750 12211 3768 12217 3771 12209 3762 12198 3750 12192 3748 12192 3746 12195 3746 12198 3747 12196 3747 12205 3748 12204 TIME...MOT...LOC 1104Z 211DEG 18KT 3760 12217 3740 12213 3719 12233 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kennedy  170 WHUS56 KMTR 241123 SMWMTR PZZ535-560-565-241200- /O.NEW.KMTR.MA.W.0040.251224T1123Z-251224T1200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service San Francisco CA 323 AM PST Wed Dec 24 2025 The National Weather Service in San Francisco has issued a * Special Marine Warning for... Monterey Bay... Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM... Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM... * Until 400 AM PST. * At 323 AM PST, severe thunderstorms capable of producing waterspouts and dangerous capsizing wind gusts in excess of 65 knots were located along a line from 10 NM west of Point Sur to near Point Pinos, moving north at 40 knots. HAZARD...Waterspouts and dangerous capsizing wind gusts in excess of 65 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Mainly open waters of Monterey Bay, Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM and Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3662 12212 3691 12207 3690 12187 3659 12195 3658 12195 3627 12203 3628 12212 3632 12212 3637 12213 3642 12215 TIME...MOT...LOC 1123Z 189DEG 39KT 3631 12210 3646 12203 3668 12197 WATERSPOUT...POSSIBLE MAX HAIL SIZE...0.00 IN MAX WIND GUST...>65 KTS $$ KR  109 WWUS56 KMTR 241126 SVSMTR Severe Weather Statement National Weather Service San Francisco CA 326 AM PST Wed Dec 24 2025 CAC001-241136- /O.CAN.KMTR.SV.W.0017.000000T0000Z-251224T1130Z/ Alameda CA- 326 AM PST Wed Dec 24 2025 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHWESTERN ALAMEDA COUNTY... The storms which prompted the warning have weakened below severe limits, and have exited the warned area. Therefore, the warning has been cancelled. However, heavy rain is still possible with these thunderstorms. && LAT...LON 3749 12205 3749 12204 3748 12203 3750 12204 3751 12208 3750 12211 3768 12217 3771 12209 3762 12198 3750 12192 3748 12192 3746 12195 3746 12198 3747 12196 3747 12205 3748 12204 TIME...MOT...LOC 1115Z 211DEG 18KT 3765 12214 3745 12209 3724 12229 $$ Kennedy  238 FZUS76 KMTR 241139 MWSMTR Marine Weather Statement National Weather Service San Francisco CA 339 AM PST Wed Dec 24 2025 PZZ535-560-565-241200- /O.CON.KMTR.MA.W.0040.000000T0000Z-251224T1200Z/ 339 AM PST Wed Dec 24 2025 ...SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 4 AM PST... For the following areas... Monterey Bay... Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM... Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM... At 339 AM PST, severe thunderstorms capable of producing waterspouts and dangerous capsizing wind gusts in excess of 65 knots were located along a line from 7 NM west of Soberanes Point to 7 NM southeast of Santa Cruz Harbor, moving north at 40 knots. HAZARD...Waterspouts and dangerous capsizing wind gusts in excess of 65 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Mainly open waters of Monterey Bay, Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM and Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3662 12208 3665 12208 3691 12201 3690 12187 3659 12195 3658 12195 3643 12199 3647 12211 TIME...MOT...LOC 1123Z 189DEG 39KT 3632 12210 3646 12203 3669 12197 WATERSPOUT...POSSIBLE MAX HAIL SIZE...0.00 IN MAX WIND GUST...>65 KTS $$ KR  979 FZUS76 KMTR 241139 RRA MWSMTR Marine Weather Statement National Weather Service San Francisco CA 339 AM PST Wed Dec 24 2025 PZZ531-241149- /O.CAN.KMTR.MA.W.0039.000000T0000Z-251224T1145Z/ 339 AM PST Wed Dec 24 2025 ...SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... San Francisco Bay South of the Bay Bridge... The thunderstorm has moved out of area and no longer poses a significant threat to boaters. && LAT...LON 3755 12229 3769 12219 3767 12216 3760 12215 3758 12215 3756 12213 3753 12211 3751 12211 3752 12209 3746 12212 3747 12214 3748 12214 3748 12215 3749 12217 3749 12218 TIME...MOT...LOC 1108Z 211DEG 18KT 3755 12218 $$ KR  154 WHUS56 KMTR 241140 SMWMTR PZZ565-576-241215- /O.NEW.KMTR.MA.W.0041.251224T1140Z-251224T1215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service San Francisco CA 340 AM PST Wed Dec 24 2025 The National Weather Service in San Francisco has issued a * Special Marine Warning for... Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM... Waters from Point Pinos to Point Piedras Blancas 10-60 NM... * Until 415 AM PST. * At 340 AM PST, severe thunderstorms capable of producing waterspouts and dangerous capsizing wind gusts in excess of 65 knots were located along a line from near Soberanes Point to 23 NM south of Point Sur, moving north at 35 knots. HAZARD...Waterspouts and dangerous capsizing wind gusts in excess of 65 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Point Sur and Soberanes Point. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 3631 12202 3656 12195 3656 12191 3652 12190 3651 12193 3650 12192 3649 12192 3641 12189 3639 12188 3636 12189 3634 12187 3631 12188 3628 12183 3625 12181 3623 12177 3583 12191 3598 12209 3614 12208 TIME...MOT...LOC 1140Z 201DEG 36KT 3638 12194 3615 12189 3593 12199 WATERSPOUT...POSSIBLE MAX HAIL SIZE...<.75 IN MAX WIND GUST...>65 KTS $$ Kennedy  810 FZUS76 KMTR 241151 MWSMTR Marine Weather Statement National Weather Service San Francisco CA 351 AM PST Wed Dec 24 2025 PZZ565-241201- /O.CAN.KMTR.MA.W.0040.000000T0000Z-251224T1200Z/ 351 AM PST Wed Dec 24 2025 ...SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Coastal Waters from Point Pinos to Point Piedras Blancas California out to 10 NM... The thunderstorms have moved out of area and no longer pose a significant threat to boaters. && LAT...LON 3664 12207 3665 12208 3691 12201 3690 12187 3663 12195 3663 12198 3664 12206 TIME...MOT...LOC 1139Z 189DEG 39KT 3649 12206 3663 12200 3686 12193 $$ PZZ535-560-241200- /O.CON.KMTR.MA.W.0040.000000T0000Z-251224T1200Z/ 351 AM PST Wed Dec 24 2025 ...SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 4 AM PST... For the following areas... Monterey Bay... Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM... At 351 AM PST, severe thunderstorms capable of producing waterspouts and dangerous capsizing wind gusts in excess of 65 knots were located along a line from near Point Pinos to near Santa Cruz Harbor, moving north at 40 knots. HAZARD...Waterspouts and dangerous capsizing wind gusts in excess of 65 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Mainly open waters of Monterey Bay and Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 3664 12207 3665 12208 3691 12201 3690 12187 3663 12195 3663 12198 3664 12206 TIME...MOT...LOC 1139Z 189DEG 39KT 3649 12206 3663 12200 3686 12193 WATERSPOUT...POSSIBLE MAX HAIL SIZE...0.00 IN MAX WIND GUST...>65 KTS $$ Kennedy  575 FZUS76 KMTR 241155 MWSMTR Marine Weather Statement National Weather Service San Francisco CA 355 AM PST Wed Dec 24 2025 PZZ535-560-241205- /O.EXP.KMTR.MA.W.0040.000000T0000Z-251224T1200Z/ 355 AM PST Wed Dec 24 2025 ...SPECIAL MARINE WARNING WILL EXPIRE AT 4 AM PST... The affected areas were... Monterey Bay... Coastal Waters from Pigeon Point to Point Pinos California out to 10 NM... The thunderstorms have weakened and no longer pose a significant threat to boaters. Heavy rain and gusty winds persist. && LAT...LON 3664 12207 3665 12208 3691 12201 3690 12187 3663 12195 3663 12198 3664 12206 TIME...MOT...LOC 1151Z 189DEG 39KT 3663 12203 3677 12197 3700 12191 $$ Kennedy