California, 2008

Flash Flood and Coastal Flood in California, January 4 to 5, 2008

January 4 to 5, 2008 · NWS MTR · 49 events in 12 counties and zones

A very strong cyclone slammed into the San Francisco and Monterey Bay Areas bringing flooding rains, high winds, record high surf and coastal flooding. Hundreds of thousands of residences and businesses were without power, some for several days due to high winds toppling power lines.

Where it happened

Every event with a place to put it; 39 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$365,000
Crop damage
None recorded
Events
49

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MTR wrote it up.

A very strong cyclone slammed into the San Francisco and Monterey Bay Areas bringing flooding rains, high winds, record high surf and coastal flooding. Hundreds of thousands of residences and businesses were without power, some for several days due to high winds toppling power lines. Property damage in the millions was reported due to falling trees hitting cars and structures as well as damage to roads due to heavy rain. Preliminary totals indicate over $1.5 million in damage in the City of Oakland, nearly $1 million in Monterey County and about $150,000 in Santa Cruz County.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Francisco Bay Area, CA wrote its last area forecast discussion before the first event at Jan 3, 10:00 PM PST, 4 hours earlier.

Area forecast discussion, Jan 3, 10:00 PM PST, 4 hours before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1000 PM PST THU JAN 3 2008

UPDATED AVIATION

.DISCUSSION...FORECAST REMAINS ON TRACK THIS EVENING. A FEW NEW
ADVISORIES/WATCHES TO HIGHLIGHT FOR FRIDAY. AN URBAN AND SMALL STREAM
FLOOD ADVISORY HAS BEEN ISSUED FOR SONOMA...MARIN...AND NAPA
COUNTIES BEGINNING AT 4 AM PST FRIDAY MORNING UNTIL 4 PM PST FRIDAY
AFTERNOON. A SECOND URBAN AND SMALL STREAM FLOOD ADVISORY WAS
ISSUED FOR THE REMAINING COUNTIES IN OUR CWA FROM SAN FRANCISCO SOUTH
BEGINNING AT 4 AM PST FRIDAY MORNING UNTIL 10 PM FRIDAY EVENING.
RAINFALL TOTALS WILL EASILY REACH 2 TO 6 INCHES BY FRIDAY AFTERNOON
AS THE FRONT MOVES ACROSS THE REGION. HIGHER ELEVATIONS HAVE THE
POTENTIAL FOR HIGHER RAINFALL TOTALS. BECAUSE OF THE POTENTIAL FOR
HEAVY RAINFALL WITH THIS SYSTEM WE HAVE ALSO ISSUED A FLASH FLOOD
WATCH FOR THE NORTH BAY COUNTIES OF SONOMA...MARIN AND NAPA FROM 4 AM
FRIDAY MORNING TO 1 PM FRIDAY AFTERNOON.

RAINFALL TOTALS THUS FAR HAVE BEEN ANYWHERE FROM HALF AN INCH TO
NEARLY 1.5 INCHES IN THE NORTH BAY TO HALF AN INCH TO 1.25 INCHES IN
THE SANTA CRUZ MOUNTAINS. WE HAVENT EVEN SEEN HALF OF THE RAINFALL
WE ARE GOING TO GET WITH THIS STORM. RAINFALL TOTALS WILL CONTINUE
TO IMPRESS US THROUGH THE NEXT 48 HOURS. SOME TOTALS TO HIGHLIGHT
IN THE NORTH BAY MOUNTAINS INCLUDE OLEMA VALLEY AND HAWKEYE WHICH
REPORTED 1.12 AND 1.88 INCHES RESPECTIVELY AS OF 8 PM. SINCE THE
LAST DISCUSSION RAIN HAS SWEPT INTO THE SANTA CRUZ MOUNTAINS
DROPPING AN IMPRESSIVE 1.25 INCHES AT BEN LOMOND...1.0 INCHES IN
SCOTTS VALLEY AND 0.79 INCH IN BOULDER CREEK.

WINDS HAVE REMAINED STEADY WITH SOUTH WINDS AROUND 15 TO 30 MPH WITH
GUSTS TO 50 MPH. STRONGEST WINDS HAVE BEEN OBSERVED MAINLY IN THE
HILLS WITH GUSTS AS HIGH AS 62 MPH IN THE NORTH AND EAST BAY
MOUNTAINS AS WELL AS THE SANTA CRUZ MOUNTAINS.

FROM PREVIOUS DISCUSSION...BEHIND THE FRONT...A YET EVEN STRONGER
STORM IS DEVELOPING. A RATHER IMPRESSIVE 180KT JET NEAR 140W WILL
CONTINUE TO DIG AS A RESULT A STRONG LOW PRESSURE WILL BUILD. THE
STRONG WINDS CURRENTLY ON GOING WILL REMAIN AND ACTUALLY INCREASE TO
HIGH WIND WARNING LEVELS(SEE SFONPWMTR) OR 25 TO 45 MPH WITH GUSTS TO
60 MPH PLUS IN THE HILLS WITH THE APPROACHING SECOND SYSTEM. ALSO...
AS THE LOW DEEPENS(960MB) OFF THE PACNW COAST AND THE NOSE OF A 140KT
MOVES OVER NORCAL...LIFT INCREASES DRAMATICALLY LATE TONIGHT/EARLY
TOMORROW. THIS WILL LIKELY BE THE PERIOD OF THE HIGHEST RAINFALL
RATES(08Z-20Z). IN FACT...SIX HOURLY RAINFALL RATES EARLY FRIDAY WILL
LIKELY BE IN EXCESS OF 2 INCHES IN TERRAIN FAVORED AREAS.
ELSEWHERE...1 TO 2 INCHES WILL LIKELY BE THE NORM. AS THE COLD FRONT
MOVES ONSHORE MIDDAY FRIDAY...LOW LEVEL SHEAR...LAPSE RATES AND SFC
CAPE ALL INCREASE COMBINED WITH THE VERTICAL VELOCITIES/COOL AIR
ALOFT WILL MAKE IT POSSIBLE FOR THUNDER. HAVE ADDED THUNDER TO THE
FORECAST FRIDAY AND FRIDAY EVENING. BY LATE FRIDAY...THE INTENSE
RAINFALL SHOULD DIMINISH...BUT SHOWERS WILL REMAIN FRIDAY NIGHT.

FOR SATURDAY/SATURDAY NIGHT...THE HEART OF THE COLD AIR ASSOCIATED
WITH UPPER TROUGH WILL MOVE OVERHEAD FURTHER DESTABILIZING THE
AIRMASS.  THEREFORE...WILL CONT THE MENTION OF THUNDER. PRECIP
AMOUNTS WILL NOT BE AS HIGH AS THE FRIDAY SYSTEM AND SHOULD BE
MORE SHOWER LIKE IN NATURE...BUT STILL MEASURABLE. SNOW LEVELS WILL
ALSO LOWER THROUGH THIS PERIOD...BUT NOT LOW ENOUGH TO MENTION FROZEN
PRECIP YET.  THIS WILL HAVE TO BE MONITORED OVER THE NEXT DAY.

YET ANOTHER STORM SYSTEM WILL MOVE IN ON SUNDAY CONTINUING THE
CHANCE OF SHOWERS.

LONG TERM(MONDAY-THURSDAY)...
NO REAL BREAK IN AN ACTIVE WEATHER PATTERN IS EXPECTED DURING THE
EXTENDED.  LATEST MEDIUM RANGE MODELS CONTINUE TO SHOW AN ACTIVE
STORM TRACK OVER MUCH OF THE WEST COAST. THE SYSTEM SLATED FOR
TUESDAY INTO WEDNESDAY LOOKS TO BE GAINING SOME STRENGTH WITH
ANOTHER ROUND OF DECENT RAIN. HAVE INCREASED POPS TUESDAY AND
WEDNESDAY. THERE AFTER...HIGH PRESSURE TRIES TO BUILD LATE IN THE
PERIOD.

&&

.AVIATION...SFC WINDS AT SFO REMAINED SE THROUGH THE EVENING. THE
PRESSURE FIELD NOW BECOMES MORE FAVORABLE FOR INCREASED SE WINDS
THROUGH FRIDAY MORNING AS A ROBUST COLD FRONT PRESSES IN FROM THE
WEST. THERE IS STRONG WIND POTENTIAL ESPECIALLY SURROUNDING FRONTAL
PASSAGE. MVFR WITH LOCALIZED IFR WILL PREVAIL TONIGHT AND FRIDAY.

&&

.PREVIOUS MARINE...SWELL HEIGHTS ARE ABOUT 15 TO 16 FEET AT PT ARENA
AND BODEGA BAY BUOYS. SWELL WILL CONTINUE INCREASE SOUTH ALONG THE CA
COAST TONIGHT...WARRANTING A HIGH SURF ADVISORY. WAVE MODELS ARE
FAIRLY CONSISTENT SHOWING W-NW SWELL PEAKING ON SATURDAY. BY SATURDAY
SWELL HEIGHTS STILL MAY REACH TO ABOUT 28 FEET WITH 15 SECOND
PERIODS.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
    .TNGT....GALE WARNING ALL WATERS BY THIS EVENING WITH ROUGH BAR.
    .TNGT....HIGH WIND WARNING ENTIRE SAN FRANCISCO AND
             MONTEREY BAY AREAS TONIGHT THROUGH FRIDAY AFTERNOON.
    .TNGT....COASTAL FLOOD WATCH AND HIGH SURF ADVY TONIGHT THROUGH
             FRI AFTERNOON FROM SONOMA COUNTY THRU MONTEREY COUNTY.
     .FRI....URBAN AND SMALL STREAM FLOOD ADVISORY FOR SONOMA...
             MARIN AND NAPA COUNTIES FROM 4 AM PST FRIDAY MORNING
             UNTIL 4 PM PST FRIDAY AFTERNOON.
     .FRI....URBAN AND SMALL STREAM FLOOD ADVISORY FOR SAN
             FRANCISCO...SAN MATEO...ALAMEDA...CONTRA COSTA...SANTA
             CLARA...SANTA CRUZ...MONTEREY AND SAN BENITO COUNTIES
             FROM 4 AM PST FRIDAY MORNING UNTIL 10 PM PST FRIDAY
             EVENING.
     .FRI....FLASH FLOOD WATCH FOR SONOMA...MARIN AND NAPA COUNTIES
             FROM 4 AM PST FRIDAY MORNING UNTIL 1 PM PST FRIDAY
             AFTERNOON.

&&

PUBLIC FORECAST: C WALBRUN/MEHLE
AVIATION/MARINE: CANEPA

NWS ON THE WEB AT WEATHER.GOV/SANFRANCISCO
Hazardous weather outlook, Jan 3, 5:15 PM PST, 8 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
515 PM PST THU JAN 3 2008

CAZ508-510>513-516>518-041200-
SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL MONUMENT-SAN FRANCISCO BAY SHORELINE-
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND THE DIABLO RANGE-
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY INCLUDING SAN JOSE-
515 PM PST THU JAN 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SAN FRANCISCO AND
MONTEREY BAY REGIONS

.DAY ONE...THURSDAY

RAIN WILL SPREAD FROM NORTH TO SOUTH ACROSS THE REGION TONIGHT. RAIN
WILL BE HEAVY AT TIMES WITH MINOR URBAN FLOODING POSSIBLE.

IN ADDITION TO THE RAIN STRONG WINDS ARE BLOWING ACROSS THE REGION. A
HIGH WIND WARNING IS IN EFFECT FROM THIS AFTERNOON THROUGH FRIDAY
AFTERNOON ACROSS THE ENTIRE REGION. THE STRONGEST WINDS ARE EXPECTED
ALONG THE COAST AND IN THE HILLS WHERE WIND GUSTS FROM 55 TO 70 MPH
WILL BE POSSIBLE BY LATE TONIGHT INTO FRIDAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ANOTHER STRONG FRONTAL SYSTEM WILL MOVE THROUGH THE AREA ON FRIDAY.
AN URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED BEGINNING AT
4 AM PST FRIDAY MORNING UNTIL 10 PM PST FRIDAY EVENING. RAINFALL
TOTALS COULD EASILY REACH 2 TO 6 INCHES BY MID AFTERNOON AS THE FRONT
TRAVERSES THE AREA. HIGHER ELEVATIONS CAN POTENTIALLY SEE HIGHER
TOTALS. SHOWERS WILL CONTINUE FRIDAY NIGHT THROUGH SUNDAY.

* HIGH WIND WARNING...........SEE WWUS76 - NPWMTR FOR DETAILS *

* URBAN AND SMALL STREAM FLOOD ADVISORY...SEE WSUS86 - FLSMTR FOR
DETAILS *

CONTINUE TO MONITOR NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE
FOR UPDATED INFORMATION ON THIS POTENTIAL SIGNIFICANT WEATHER EVENT.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

CAZ006-509-514-515-041200-
BIG SUR COAST-SAN FRANCISCO-SAN FRANCISCO PENINSULA COAST-
MONTEREY BAY/NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL
VALLEY-
515 PM PST THU JAN 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COASTAL SECTIONS OF THE SAN
FRANCISCO AND MONTEREY BAY REGIONS

.DAY ONE...THURSDAY

A SERIES OF STRONG PACIFIC STORMS ARE IMPACTING THE CALIFORNIA COAST
THIS EVENING WITH HIGH SURF AND HIGH WINDS. HIGH SURF WILL PERSIST
INTO SUNDAY MORNING. COASTAL FLOODING IS ALSO POSSIBLE ESPECIALLY
DURING HIGH TIDES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ANOTHER STRONG FRONTAL SYSTEM WILL MOVE THROUGH THE AREA ON FRIDAY.
AN URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED BEGINNING AT
4 AM PST FRIDAY MORNING. RAINFALL TOTALS COULD EASILY REACH 2 TO 6
INCHES BY MID AFTERNOON AS THE FRONT TRAVERSES THE AREA. HIGHER
ELEVATIONS CAN POTENTIALLY SEE HIGHER TOTALS. SHOWERS WILL CONTINUE
FRIDAY NIGHT THROUGH SUNDAY.

CONTINUE TO MONITOR NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE
FOR UPDATED INFORMATION ON THIS POTENTIAL SIGNIFICANT WEATHER
EVENT.

* HIGH SURF ADVISORY AND COASTAL FLOOD WATCH.....SEE WHUS46 -
CFWMTR FOR DETAILS *

* HIGH WIND WARNING...........SEE WWUS76 - NPWMTR FOR DETAILS *

* URBAN AND SMALL STREAM FLOOD ADVISORY...SEE WSUS86 - FLSMTR FOR
DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

CAZ506-507-041200-
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-
515 PM PST THU JAN 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NORTH BAY REGION

.DAY ONE...THURSDAY

RAIN WILL SPREAD FROM NORTH TO SOUTH ACROSS THE REGION TONIGHT. RAIN
WILL BE HEAVY AT TIMES WITH MINOR URBAN FLOODING POSSIBLE.

IN ADDITION TO THE RAIN STRONG WINDS ARE BLOWING ACROSS THE REGION. A
HIGH WIND WARNING IS IN EFFECT FROM THIS AFTERNOON THROUGH FRIDAY
AFTERNOON ACROSS THE ENTIRE REGION. THE STRONGEST WINDS ARE EXPECTED
ALONG THE COAST AND IN THE HILLS WHERE WIND GUSTS FROM 55 TO 70 MPH
WILL BE POSSIBLE BY LATE TONIGHT INTO FRIDAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ANOTHER STRONG FRONTAL SYSTEM WILL MOVE THROUGH THE AREA ON FRIDAY.
AN URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED BEGINNING AT
4 AM PST FRIDAY MORNING UNTIL 4 PM PST FRIDAY AFTERNOON. RAINFALL
TOTALS COULD EASILY REACH 2 TO 6 INCHES BY MID AFTERNOON AS THE FRONT
TRAVERSES THE AREA. HIGHER ELEVATIONS CAN POTENTIALLY SEE 6 TO 8
INCHES. THIS STORM WILL BRING THE POTENTIAL FOR LOCALIZED FLASH
FLOODING AND A FLASH FLOOD WATCH HAS BEEN ISSUED. SHOWERS WILL
CONTINUE FRIDAY NIGHT THROUGH SUNDAY.

* HIGH WIND WARNING...........SEE WWUS76 - NPWMTR FOR DETAILS *

* URBAN AND SMALL STREAM FLOOD ADVISORY...SEE WSUS86 - FLSMTR FOR
DETAILS *

* FLASH FLOOD WATCH...........SEE WGUS66 - FFAMTR FOR DETAILS *

CONTINUE TO MONITOR NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE
FOR UPDATED INFORMATION ON THIS POTENTIAL SIGNIFICANT WEATHER EVENT.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

CAZ505-041200-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
515 PM PST THU JAN 3 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COASTAL SECTIONS OF THE
NORTH BAY

.DAY ONE...THURSDAY

A SERIES OF STRONG PACIFIC STORMS ARE IMPACTING THE CALIFORNIA COAST
THIS EVENING WITH HIGH SURF AND HIGH WINDS. HIGH SURF WILL PERSIST
INTO SUNDAY MORNING. COASTAL FLOODING IS ALSO POSSIBLE ESPECIALLY
DURING HIGH TIDES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

ANOTHER STRONG FRONTAL SYSTEM WILL MOVE THROUGH THE AREA ON FRIDAY.
AN URBAN AND SMALL STREAM FLOOD ADVISORY HAS BEEN ISSUED BEGINNING AT
4 AM PST FRIDAY MORNING. RAINFALL TOTALS COULD EASILY REACH 2 TO 6
INCHES BY MID AFTERNOON AS THE FRONT TRAVERSES THE AREA. HIGHER
ELEVATIONS CAN POTENTIALLY SEE 6 TO 8 INCHES. THIS STORM WILL BRING
THE POTENTIAL FOR LOCALIZED FLASH FLOODING AND A FLASH FLOOD WATCH
HAS BEEN ISSUED. SHOWERS WILL CONTINUE FRIDAY NIGHT THROUGH SUNDAY.

CONTINUE TO MONITOR NOAA WEATHER RADIO OR YOUR FAVORITE NEWS SOURCE
FOR UPDATED INFORMATION ON THIS POTENTIAL SIGNIFICANT WEATHER
EVENT.

* HIGH SURF ADVISORY AND COASTAL FLOOD WATCH.....SEE WHUS46 -
CFWMTR FOR DETAILS *

* HIGH WIND WARNING...........SEE WWUS76 - NPWMTR FOR DETAILS *

* URBAN AND SMALL STREAM FLOOD ADVISORY...SEE WSUS86 - FLSMTR FOR
DETAILS *

* FLASH FLOOD WATCH...........SEE WGUS66 - FFAMTR FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

C WALBRUN

The radar

The Sacramento radar (KDAX), 104 km away, was scanning. The volume nearest the first event began at 21:01 UTC.

Open the radar archive at this moment

Event by event

43 high wind, 4 coastal flood, 1 high surf, 1 flash flood. Local standard time, as filed.

High Surf, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 2:00 AM PST to January 5, 7:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Reported by
Newspaper
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

High Surf buffeted the Marin County coast - reaching heights near 25 feet. A professional diver fell into the thrashing bay waters during the event, suffered hypothermia and died 2 days later.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 3:00 AM PST to 8:00 AM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
70 kt (81 mph) measured gust
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Gusts to 81 mph were recorded at Pt.Reyes Lighthouse.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 3:00 AM PST to 9:00 AM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
63 kt (72 mph) measured gust
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Gusts to 72 mph were recorded at Inverness.

High Wind, North Bay Interior Valleys

When
January 4, 4:00 AM PST to 10:00 AM PST
Where
North Bay Interior Valleys forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
38.362, -122.667 (the zone’s center; the record gives no point)

RAWS site in Barnaby (810 ft) measured a gust to 58 mph.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 5:00 AM PST to 12:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
36 kt (41 mph) measured sustained
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Winds sustained at 41 mph were reported at Pt. Reyes.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 5:00 AM PST to 11:00 AM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Winds gusted to 58 mph at Pt.Reyes.

High Wind, Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley

When
January 4, 5:00 AM PST to 10:00 AM PST
Where
Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley forecast zone
Measured
39 kt (45 mph) measured sustained
Reported by
Mesonet
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

Sustained winds reached 45 mph at Pt.Sur Lightstation.

High Wind, Big Sur Coast

When
January 4, 5:00 AM PST to 10:00 AM PST
Where
Big Sur Coast forecast zone
Measured
39 kt (45 mph) measured sustained
Reported by
Mesonet
Coordinates
37.787, -121.934 (the zone’s center; the record gives no point)

Sustained winds reached 45 mph at Pt.Sur Lightstation.

High Wind, North Bay Mountains

When
January 4, 6:00 AM PST to 11:00 AM PST
Where
North Bay Mountains forecast zone
Measured
36 kt (41 mph) measured sustained
Reported by
Mesonet

RAWS Site in Hawkeye (2024ft) had sustained winds of 42 mph.

High Wind, North Bay Mountains

When
January 4, 6:00 AM PST to 12:00 PM PST
Where
North Bay Mountains forecast zone
Measured
72 kt (83 mph) measured gust
Reported by
Mesonet

Big Rock RAWS Site (1500ft) measured a gust to 83 mph.

High Wind, San Francisco

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
San Francisco forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Winds gusted to 58 mph at the SF School for the Arts.

High Wind, San Francisco

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
San Francisco forecast zone
Measured
50 kt (58 mph) measured sustained
Reported by
Mesonet
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Sustained winds of 57 mph were recorded at Pt. Reyes Lighthouse.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
39 kt (45 mph) measured sustained
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Sustained winds of 45 mph were recorded at Bodega Bay.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
39 kt (45 mph) measured sustained
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Sustained winds of 45 mph were recorded at Bodega Bay.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Wind Gusts reached 58 mph in Bodega Bay.

High Wind, North Bay Interior Valleys

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
North Bay Interior Valleys forecast zone
Measured
35 kt (40 mph) measured sustained
Reported by
Mesonet
Coordinates
38.362, -122.667 (the zone’s center; the record gives no point)

Sustained winds of 40 mph were measured at Mt. Tam (762ft).

High Wind, San Francisco Peninsula Coast

When
January 4, 7:00 AM PST to 11:00 AM PST
Where
San Francisco Peninsula Coast forecast zone
Measured
42 kt (48 mph) measured sustained
Reported by
Mesonet
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Pigeon Point measured sustained winds of 48 mph.

High Wind, Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley

When
January 4, 7:00 AM PST to 12:00 PM PST
Where
Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley forecast zone
Measured
39 kt (45 mph) measured sustained
Reported by
Mesonet
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

Sustained winds reached 45 mph at Granite Canyon NPS site.

High Wind, Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley

When
January 4, 7:00 AM PST to 11:00 AM PST
Where
Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley forecast zone
Measured
55 kt (63 mph) measured gust
Reported by
Mesonet
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

A gust to 63 mph was recorded at Carmel Middle School.

High Wind, San Francisco

When
January 4, 8:00 AM PST to 1:00 PM PST
Where
San Francisco forecast zone
Measured
65 kt (75 mph) measured gust
Reported by
Mesonet
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Winds at Twin Peaks in San Francisco gusted to 75 mph.

High Wind, San Francisco

When
January 4, 8:00 AM PST to 1:00 PM PST
Where
San Francisco forecast zone
Measured
56 kt (64 mph) measured gust
Reported by
County Official
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Winds gusted to 65 mph at Ft.Funston in San Francisco.

High Wind, North Bay Mountains

When
January 4, 8:00 AM PST to 12:00 PM PST
Where
North Bay Mountains forecast zone
Measured
65 kt (75 mph) measured gust
Reported by
Mesonet

Mt. Tamalpias Bay Area Air Quality Site measured a gust to 75 mph.

High Wind, San Francisco Bay Shoreline

When
January 4, 8:00 AM PST to 12:00 PM PST
Where
San Francisco Bay Shoreline forecast zone
Measured
46 kt (53 mph) measured sustained
Reported by
ASOS
Coordinates
37.561, -121.980 (the zone’s center; the record gives no point)

San Francisco Airport measured sustained winds at 53 mph.

High Wind, San Francisco Peninsula Coast

When
January 4, 8:00 AM PST to 12:00 PM PST
Where
San Francisco Peninsula Coast forecast zone
Measured
57 kt (66 mph) measured gust
Reported by
Mesonet
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Winds gusted to 66 mph at Pigeon Pt.

High Wind, Santa Lucia Mountains and Los Padres National Forest

When
January 4, 8:00 AM PST to 12:00 PM PST
Where
Santa Lucia Mountains and Los Padres National Forest forecast zone
Measured
36 kt (41 mph) measured sustained
Reported by
Mesonet
Coordinates
36.240, -121.309 (the zone’s center; the record gives no point)

Sustained winds reached 41 mph at Highlands Peak.

High Wind, San Francisco

When
January 4, 9:00 AM PST to 1:00 PM PST
Where
San Francisco forecast zone
Measured
61 kt (70 mph) estimated gust
Reported by
Official NWS Observations
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Winds gusted to 70 mph at the Golden Gate Bridge.

High Wind, San Francisco

When
January 4, 9:00 AM PST to 1:00 PM PST
Where
San Francisco forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
County Official
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Winds gusted to 58 mph at Mission Bay in San Francisco.

High Wind, San Francisco Bay Shoreline

When
January 4, 9:00 AM PST to 1:00 PM PST
Where
San Francisco Bay Shoreline forecast zone
Measured
58 kt (67 mph) measured gust
Reported by
ASOS
Coordinates
37.561, -121.980 (the zone’s center; the record gives no point)

San Francisco Airport gusted to 67 mph.

High Wind, East Bay Hills and the Diablo Range

When
January 4, 9:00 AM PST to 12:00 PM PST
Where
East Bay Hills and the Diablo Range forecast zone
Measured
69 kt (79 mph) measured gust
Reported by
Mesonet

Winds gusted to 79 mph at Calaveras RAWS Site - and also were sustained at 55 mph.

High Wind, East Bay Hills and the Diablo Range

When
January 4, 9:00 AM PST to 1:00 PM PST
Where
East Bay Hills and the Diablo Range forecast zone
Measured
61 kt (70 mph) measured gust
Reported by
Mesonet

Winds gusted to 70 mph at Los Vaqueros RAWS site and were sustained at 51 mph.

High Wind, East Bay Hills and the Diablo Range

When
January 4, 9:00 AM PST to 12:00 PM PST
Where
East Bay Hills and the Diablo Range forecast zone
Measured
43 kt (49 mph) measured sustained
Reported by
Mesonet

Sustained winds reached 49 mph at Santa Cruz Long Marine Lab.

High Wind, Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley

When
January 4, 9:00 AM PST to 1:00 PM PST
Where
Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley forecast zone
Measured
43 kt (49 mph) measured sustained
Reported by
Mesonet
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

Sustained winds reached 49 mph at the Santa Cruz Long Marine Lab.

High Wind, San Francisco Peninsula Coast

When
January 4, 10:00 AM PST to 2:00 PM PST
Where
San Francisco Peninsula Coast forecast zone
Measured
50 kt (58 mph) measured sustained
Reported by
Mesonet
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Pillar Point had sustained winds of 58 mph.

High Wind, San Francisco Peninsula Coast

When
January 4, 10:00 AM PST to 2:00 PM PST
Where
San Francisco Peninsula Coast forecast zone
Measured
70 kt (81 mph) measured gust
Reported by
Mesonet
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Pillar Point gusted to 81 mph.

High Wind, East Bay Interior Valleys

When
January 4, 10:00 AM PST to 2:00 PM PST
Where
East Bay Interior Valleys forecast zone
Measured
36 kt (41 mph) measured sustained
Reported by
Mesonet
Coordinates
37.787, -121.934 (the zone’s center; the record gives no point)

Sustained winds reached 41 mph at Bethel Island - and later gusted to 60 mph at 10am.

High Wind, East Bay Hills and the Diablo Range

When
January 4, 10:00 AM PST to 2:00 PM PST
Where
East Bay Hills and the Diablo Range forecast zone
Measured
96 kt (110 mph) measured gust
Reported by
County Official

Winds gusted to 110 mph at Kregor Peak, then later gusted to 71 mph.

High Wind, San Francisco

When
January 4, 11:00 AM PST to 4:00 PM PST
Where
San Francisco forecast zone
Measured
48 kt (55 mph) measured sustained
Reported by
Official NWS Observations
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Sustained winds of 55 mph were realized at the Golden Gate Bridge wind sensor.

High Wind, Coastal North Bay Including Point Reyes National Seashore

When
January 4, 11:00 AM PST to 2:00 PM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Measured
54 kt (62 mph) measured gust
Reported by
Mesonet
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

Gusts reached 62 mph at Valley Ford.

High Wind, North Bay Mountains

When
January 4, 11:00 AM PST to 2:00 PM PST
Where
North Bay Mountains forecast zone
Measured
61 kt (70 mph) measured gust
Reported by
Mesonet

Middle Peak RAWS Site measured a gust to 70 mph.

High Wind, East Bay Hills and the Diablo Range

When
January 4, 11:00 AM PST to 2:00 PM PST
Where
East Bay Hills and the Diablo Range forecast zone
Measured
36 kt (41 mph) measured sustained
Reported by
Mesonet

Winds were sustained at 42 mph at Oakland North RAWS.

High Wind, San Francisco

When
January 4, 12:00 PM PST to 5:00 PM PST
Where
San Francisco forecast zone
Measured
35 kt (40 mph) measured sustained
Reported by
County Official
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Sustained winds of 40 mph were observed at Ft. Funston in San Francisco.

High Wind, San Francisco Bay Shoreline

When
January 4, 12:00 PM PST to 3:00 PM PST
Where
San Francisco Bay Shoreline forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
ASOS
Coordinates
37.561, -121.980 (the zone’s center; the record gives no point)

Oakland Airport reported gusts to 58 mph.

High Wind, San Francisco Peninsula Coast

When
January 4, 12:00 PM PST to 3:00 PM PST
Where
San Francisco Peninsula Coast forecast zone
Measured
63 kt (72 mph) measured gust
Reported by
Mesonet
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Winds gusted to 72 mph in Daly City.

High Wind, East Bay Interior Valleys

When
January 4, 12:00 PM PST to 3:00 PM PST
Where
East Bay Interior Valleys forecast zone
Measured
60 kt (69 mph) measured gust
Reported by
Mesonet
Coordinates
37.787, -121.934 (the zone’s center; the record gives no point)

Winds gusted to 69 mph in Sunol.

Flash Flood, Santa Cruz

When
January 4, 1:00 PM PST to 4:00 PM PST
Where
Santa Cruz County, Scotts Vly to Bonnie Doone
Cause
Heavy Rain
Property damage
$350,000
Reported by
Broadcast Media
Coordinates
37.050, -122.030

Heavy rain caused flash flooding in the Santa Cruz Mountains with many roadways including Highway 9 closed for several hours. Rainwater submerged the hardwood gym floor at Scotts Valley High School causing $300,000 in damage.

Coastal Flood, Coastal North Bay Including Point Reyes National Seashore

When
January 5, 7:00 AM PST to 11:00 AM PST
Where
Coastal North Bay Including Point Reyes National Seashore forecast zone
Reported by
Emergency Manager
Coordinates
38.290, -122.835 (the zone’s center; the record gives no point)

High tide and strong onshore wind pushed ocean water onto streets in Stinson Beach and Bolinas in Marin County. Water also enveloped Highway 1 at Scotty Creek in Sonoma County.

Coastal Flood, San Francisco

When
January 5, 7:00 AM PST to 11:00 AM PST
Where
San Francisco forecast zone
Reported by
Emergency Manager
Coordinates
37.778, -122.442 (the zone’s center; the record gives no point)

Ocean water toppled over onto the Great Highway in San Francisco and closed the roadway for a time. Also, the Embarcadero in San Francisco became flooded at the Ferry Building near the Bay Bridge.

Coastal Flood, San Francisco Peninsula Coast

When
January 5, 7:00 AM PST to 11:00 AM PST
Where
San Francisco Peninsula Coast forecast zone
Property damage
$5,000
Reported by
Emergency Manager
Coordinates
37.229, -122.183 (the zone’s center; the record gives no point)

Ocean water overtoppled barriers due to high winds, high tides and huge surf. Highway 1 was flooded near Half Moon Bay just south of Pillar Point. Large rocks and boulders also washed ashore. A boat washed up in Pillar Point along with major coastal erosion.

Coastal Flood, Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley

When
January 5, 7:00 AM PST to 11:00 AM PST
Where
Monterey Bay/N Salinas Valley/Hollister Valley/Carmel Valley forecast zone
Property damage
$10,000
Reported by
Emergency Manager
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

High surf and strong onshore winds pushed ocean water over the sandbar into the Carmel Lagoon. Water rose in the lagoon over 2 feet in just a couple of hours. Approximately 30 homes were affected to some degree by flooding.

What these are

High Surf
Large waves breaking on the shore that caused damage, erosion or casualties.
High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Coastal Flood
Flooding of coastal land by the sea, from storm surge, onshore wind or high tides.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2008Every state in 2008This day in weather historyWarnings in California, January 2008

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 67875, 66201, 66202, 66325, 66200, 66205, 67360, 67362, 66326, 66327, 66195, 66197, 66198, 66199, 66204, 66324, 67347, 67359, 67361, 66192, 66194, 66382, 67343, 67349, 67363, 66193, 66196, 67344, 67354, 67355, 67357, 67358, 67346, 67348, 67351, 67353, 66190, 66203, 66384, 67356, and more.