A fast moving storm system moved across Southern California produced a brief period of gusty west winds in the early morning of November 28th, mainly in the mountains and deserts.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS SGX wrote it up.
A fast moving storm system moved across Southern California produced a brief period of gusty west winds in the early morning of November 28th, mainly in the mountains and deserts.
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 Diego, CA wrote its last area forecast discussion before the first event at Nov 27, 9:30 PM PST, 5 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 930 PM PST SAT NOV 27 2010 .SYNOPSIS...A COLD FRONT APPROACHING FROM THE NORTHWEST WILL LIKELY BRING SHOWERS TONIGHT...MAINLY OVER AND WEST OF THE MOUNTAINS. THERE WILL ALSO BE LOCAL STRONG GUSTY WESTERLY WINDS INTO SUNDAY WITH THE STRONGEST WINDS IN THE MOUNTAINS AND DESERTS. HIGH PRESSURE ALOFT AND PERIODS OF OFFSHORE FLOW WILL BRING MOSTLY CLEAR SKIES AND WARMER DAYS BUT COLD NIGHTS DURING THE EARLY TO MIDDLE PART OF NEXT WEEK. LOCAL GUSTY OFFSHORE WINDS MONDAY AND TUESDAY. COOLER AND INCREASED CLOUDINESS TOWARDS THE END OF THE WEEK. && .DISCUSSION...FOR SOUTHWEST CALIFORNIA INCLUDING SAN DIEGO... ORANGE...SOUTHWEST SAN BERNARDINO AND WEST RIVERSIDE COUNTIES. .SHORT TERM (REMAINDER OF TODAY-TUESDAY)...THERE WERE AREAS OF CLOUDS BACKED UP AGAINST THE MOUNTAINS THIS EVENING. SHOWERS WERE BEGINNING TO MOVE INTO ORANGE COUNTY. THE 00Z NKX SOUNDING SHOWED INCREASING LOW LEVEL MOISTURE AND STRONG WLY WINDS ALOFT. ONSHORE GRADIENTS AND TRENDS WITH ABOUT 6 MB SAN-IPL. A COLD FRONT WILL MOVE THROUGH SRN CA TONIGHT MAKING SHOWERS LIKELY OVER AND W OF THE MOUNTAINS. MOISTURE IS LIMITED WITH THIS SYSTEM AND PRECIP WILL BE BRIEF. THIS WILL RESULT IN FAIRLY LIGHT RAINFALL TOTALS OF GENERALLY LESS THAN A TENTH OF AN INCH IN THE COASTAL AND VALLEY AREAS. STRONG WEST WINDS ALOFT WILL BRING A LITTLE LARGER RAINFALL TOTALS TO THE SOUTHERN AREAS NEAR THE RIVERSIDE AND SAN DIEGO COUNTY COASTAL MOUNTAIN SLOPES. LOCAL RAINFALL TOTALS WILL BE NEAR A QUARTER OF AN INCH ON THE COASTAL MOUNTAIN SLOPES. RESIDUAL MOISTURE AND UPSLOPE FLOW IN THE COLD AIR MASS BEHIND THE FRONT COULD CAUSE A FEW LINGERING SHOWERS INTO SUNDAY MORNING. DECREASING CLOUDINESS SUNDAY AFTERNOON AND EVENING. THE SNOW LEVEL WILL START AROUND 6000 FEET THIS EVENING AND FALL TO NEAR 4000 FEET BY EARLY SUNDAY MORNING. THERE COULD BE AN INCH OR TWO OF NEW SNOW ACCUMULATION ABOVE 5000 FEET. SNOW FLURRIES ARE POSSIBLE NEAR THE SUMMIT OF THE CAJON PASS EARLY SUNDAY MORNING...BUT LITTLE ACCUMULATION IS EXPECTED. SNOW AND PATCHY FOG IN THE MOUNTAINS WILL REDUCE VISIBILITY AT TIMES. THE MORE SIGNIFICANT IMPACT FROM THIS SYSTEM WILL BE THE WINDS WITH THE COMBINATION OF STRONG WINDS ALOFT AND STRONGER ONSHORE GRADIENTS. LOCAL STRONG GUSTY WLY WINDS WILL DEVELOP TONIGHT AND CONTINUE INTO SUNDAY. THE STRONGEST WINDS WILL BE IN THE HIGHER MOUNTAINS AND HIGH DESERTS WHERE WINDS 25 TO 40 MPH WITH LOCAL GUSTS OVER 60 MPH ARE EXPECTED. THE LOWER DESERT WINDS WILL NOT BE QUITE AS STRONG AND WIDESPREAD BUT THERE WILL STILL BE LOCAL WINDS 20 TO 35 MPH WITH GUSTS NEAR 50 MPH. AN UPPER RIDGE WILL MOVE ACROSS THE WEST MONDAY AND TUESDAY. AT THE SAME TIME...SURFACE HIGH PRESSURE WILL BUILD OVER THE INTERIOR MONDAY AND THEN SHIFT E AND WEAKEN TUESDAY. THIS WILL CAUSE LOCAL GUSTY OFFSHORE WINDS THROUGH AND BELOW MOUNTAIN CANYONS AND PASSES. THE STRONGEST WINDS WILL BE MONDAY MORNING AND EARLY AFTERNOON WITH LOCAL ADVISORY STRENGTH WINDS GUSTING NEAR 45 MPH LIKELY. WEAKER OFFSHORE WINDS WILL CONTINUE INTO TUESDAY. COOL SUNDAY WITH MAX TEMPS ABOUT 10 TO 16 DEGREES BELOW SEASONAL AVERAGES IN MOST AREAS. COLD SUNDAY NIGHT WITH LOCAL FROST INLAND IN AREAS PROTECTED FROM THE WINDS. A LITTLE WARMER MONDAY WITH MORE WARMING TUESDAY. HOWEVER...MAX TEMPS WILL STILL BE A LITTLE BELOW SEASONAL AVERAGES TUESDAY DESPITE THE WARMING. MOSTLY CLEAR SKIES MONDAY AND VARIABLE HIGH CLOUDINESS TUESDAY. && .LONG TERM (WEDNESDAY-SATURDAY)...WEAK HIGH PRESSURE ALOFT AND WEAK OFFSHORE FLOW WILL CONTINUE WEDNESDAY WITH MAX TEMPS NEAR SEASONAL AVERAGES. A LITTLE COOLER W OF THE MOUNTAINS THURSDAY AS ONSHORE FLOW RETURNS. A LITTLE MORE COOLING FRIDAY AND THEN LITTLE CHANGE SATURDAY. VARIABLE...MAINLY HIGH...CLOUDINESS TOWARD THE END OF NEXT WEEK. && .AVIATION... 280400Z...THE COLD FRONT WILL MOVE THROUGH THE AREA TONIGHT AND BRING SHOWERS FROM THE MTNS W TO THE COAST. PREVAILING CIGS WILL BE 2000-3000 FT MSL WITH VIS MOSTLY ABOVE 6 SM...EXCEPT WHERE CLOUDS OBSCURE MTN SLOPES ABOVE 2500 FT MSL. LOCAL CIGS WILL BE 1000 FT MSL WITH LOCAL VIS 3 SM. MOST OF THE PRECIP WILL END AROUND 10Z IN ORANGE COUNTY AND 13Z FURTHER SOUTH AND EAST. FOR SUNDAY...SCT/BKN CONDITIONS...WITH CIGS MOSTLY ABOVE 3000 FT MSL...WILL OCCUR. WESTERLY WINDS WILL INCREASE TO 35 TO 50 KT OVER THE MOUNTAIN CRESTS AFTER 06Z RESULTING IN POSSIBLE WIND SHEAR...STRONG UDDFS...AND POSSIBLE ROTOR ACTIVITY NEAR THE DESERT SLOPES...ESPECIALLY VCNTY KPSP. WINDS WILL GRADUALLY DECREASE SUNDAY MORNING. A PERIOD OF GUSTY WINDS WILL OCCUR AT KSAN...POSSIBLY TO 25 KNOTS...BETWEEN 07Z AND 11Z. && .MARINE... 280400Z...WESTERLY WINDS WILL INCREASE OVERNIGHT...WITH 20-25 KNOTS SUSTAINED WINDS EXPECTED LATE TONIGHT/SUN AND GUSTS TO 30 KT. SHORT PERIOD WEST SWELL IS FORECASTED TO BUILD THROUGH EARLY SUN...REACHING 6 TO 9 FEET SUN MORNING OVER THE OUTER WATERS. A SMALL CRAFT ADVISORY HAS IS IN EFFECT THROUGH SUN FOR THE COMBINATION OF THE WIND AND ELEVATED STEEP SEAS. WIND AND SEAS SHOULD SUBSIDE LATE SUN NIGHT. && .SGX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING FOR MOUNTAINS EXCLUDING THE SANTA ANA MOUNTAINS AND HIGH DESERTS THROUGH SUNDAY MORNING. SEE LAXNPWSGX. WIND ADVISORY FOR THE COACHELLA VALLEY AND SAN DIEGO COUNTY DESERTS THROUGH SUNDAY MORNING. SEE LAXNPWSGX. SMALL CRAFT ADVISORY FOR THE INNER AND OUTER COASTAL WATERS THROUGH SUNDAY EVENING. SEE LAXMWWSGX. && PUBLIC...ATKIN AVIATION/MARINE...MAXWELL
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 400 PM PST SAT NOV 27 2010 CAZ042-043-048-050-055>058-060>062-PZZ750-PZZ775-281200- ORANGE COUNTY COASTAL AREAS- SAN DIEGO COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN DIEGO COUNTY VALLEYS- SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS- SANTA ANA MOUNTAINS AND FOOTHILLS- SAN DIEGO COUNTY MOUNTAINS- APPLE AND LUCERNE VALLEYS- COACHELLA VALLEY- SAN DIEGO COUNTY DESERTS- COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT 30 NM- WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND- 400 PM PST SAT NOV 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...REMAINDER OF TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT THIS EVENING AND TONIGHT FOR THE MOUNTAINS AND HIGH DESERTS TONIGHT FOR SUSTAINED WINDS OF 25 TO 40 MPH AND GUSTS TO 60 MPH. A WIND ADVISORY IS IN EFFECT FOR THE LOW DESERTS FOR SUSTAINED WINDS 25 TO 35 MPH WITH GUSTS TO 50 MPH. A SMALL CRAFT ADVISORY IS IN EFFECT THIS EVENING AND TONIGHT. SHOWERS DEVELOPING TONIGHT WITH SNOW IN THE MOUNTAINS ABOVE 5500 FEET. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY LOCAL STRONG GUSTY ONSHORE WINDS CONTINUE THROUGH SUNDAY MORNING...DECREASING IN THE AFTERNOON. WIND WARNINGS IN THE MOUNTAINS AND WIND ADVISORIES IN THE DESERTS THROUGH SUNDAY MORNING. SMALL CRAFT ADVISORY CONTINUES THROUGH SUNDAY EVENING. GUSTY OFFSHORE WINDS THROUGH AND BELOW MOUNTAIN CANYONS AND PASSES MONDAY AND TUESDAY. .SPOTTER INFORMATION STATEMENT...SKYWARN SPOTTER ACTIVATION IS NOT REQUESTED FOR THIS AREA...HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS. ATKIN
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
High winds began in the Coachella Valley between 0250 and 0350 PST and continued until approximately 0400 PST. Between 0250 and 0350 PST, a peak wind gust of 58 MPH was measured by the Whitewater RAWS.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2010Every state in 2010This day in weather historyWarnings in California, November 2010
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: 267322.