Strong and gusty northerly winds developed across the Santa Ynez Range in Santa Barbara County and the Los Angeles County mountains. Sustained winds in excess of 40 MPH and gusts in excess of 65 MPH were reported.
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 LOX wrote it up.
Strong and gusty northerly winds developed across the Santa Ynez Range in Santa Barbara County and the Los Angeles County mountains. Sustained winds in excess of 40 MPH and gusts in excess of 65 MPH were reported.
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 Los Angeles, CA wrote its last area forecast discussion before the first event at Apr 29, 7:30 PM PST, 1 hour 17 minutes earlier.
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 830 PM PDT FRI APR 29 2011 .SYNOPSIS... GUSTY NORTH TO NORTHEAST WINDS WILL LAST THROUGH SATURDAY. TEMPERATURES WILL BE WELL ABOVE SEASONAL NORMALS THROUGH WEDNESDAY AS WEAK OFFSHORE WILL PERSIST...AND THEN COOL THE END OF THE WEEK WITH THE RETURN OF ONSHORE CONDITIONS. && .SHORT TERM (TONIGHT-MON)...HI TEMPS WERE DOWN 3 TO 8 DEGREES FROM YESTERDAY AS HEIGHTS AND THICKNESS LVLS WERE A BIT LOWER DUE TO AN UPPER LVL LOW PUSHING SOUTH INTO THE GREAT BASIN TODAY. ONSHORE FLOW IS STARTING TO TREND OFFSHORE WITH +2MB BETWEEN LAX-DAG. MEANWHILE...LAX-BFL SFC GRAD IS INCREASING TO -5.7MB THIS EVENING. WIND GUSTS TO 35 MPH ALREADY OCCURRING ACROSS THE SANTA CLARITA VALLEY AND AT VAN NUYS AIRPORT. THEREFORE...WENT AHEAD AND STARTED WIND ADVISORIES FOR BOTH SANTA CLARITA AND SAN FERNANDO VALLEY VALID THROUGH SATURDAY AFTERNOON. SURPRISINGLY FOR LATE APRIL...A RELATIVELY STRONG SFC HIGH PRESSURE WILL BUILD OVER THE GREAT BASIN OVERNIGHT. THIS WILL CAUSE AN INCREASE OF OFFSHORE WINDS LATER TONIGHT. INITIALLY...WINDS WILL BE OUT OF THE NORTH AFFECTING THE USUAL AREAS SUCH AS THE SBA COUNTY MOUNTAINS AND WIND PRONE CANYONS AND PASSES OF THE ADJACENT SBA SOUTH COAST...AS WELL AS THE I-5 CORRIDOR AND SPREADING INTO THE SANTA CLARITA VALLEY AND THE WESTERN SAN FERNANDO VALLEY TONIGHT. WINDS WILL THEN SHIFT TO THE NORTHEAST AFTER MIDNIGHT. THE FOCUS OF THE STRONGEST WINDS WILL CONTINUE ACROSS THE LA/VTU COUNTY MOUNTAINS...BUT ALSO THE WIND PRONE PASSES AND CANYONS OF THE LA COUNTY VALLEYS...EXCLUDING THE SAN GABRIEL VALLEY AND AFFECTING THE VENTURA COUNTY VALLEYS AND COASTAL PLAIN. STRONGEST WIND GUSTS ARE EXPECTED TO REACH AROUND 50 MPH...AND 35 TO 40 MPH ALONG THE COAST. THE SANTA MONICA MOUNTAINS WILL ALSO BE AFFECTED TONIGHT WITH GUSTS TO 45 MPH. THERE WILL BE A FEW LA COUNTY COASTAL PASSES AND CANYONS FROM THE HOLLYWOOD HILLS TO MALIBU AND LEO CARRILLO THAT WILL SEE LOCAL GUSTY NORTH TO NE WINDS OVERNIGHT INTO SATURDAY MORNING BUT NOT WIDESPREAD ENOUGH TO CONSTITUTE A WAD FOR LA COAST. THIS SHOULD BE A RELATIVELY SHORT MODERATE OFFSHORE EVENT WITH STRONGEST WINDS PEAKING BETWEEN 7AM TO NOON SATURDAY. OFFSHORE FLOW WILL LIKELY CONTINUE ACROSS THE REGION THROUGH ALL OF SATURDAY...HOWEVER THE VENTURA COAST SHOULD SEE WINDS BECOME ONSHORE IN THE AFTERNOON..THEN TURN OFFSHORE ONCE AGAIN SAT NIGHT...YET MUCH WEAKER THEN EARLIER ON SAT. ALTHOUGH THICKNESS LVLS WILL CONTINUE TO LOWER ON SAT AS THE UPPER LOW MOVES IN ACROSS NRN NEVADA...THERE WILL BE ENOUGH OFFSHORE FLOW AND COMPRESSIONAL HEATING TO WARM UP THE LA/VTU COAST AND VALLEYS SIGNIFICANTLY INTO THE MID TO UPPER 80S TO AROUND 90 IN THE WESTERN SAN FERNANDO VALLEY. HOWEVER...WITH LATEST GFS INDICATING LOWER HEIGHTS AND THICKNESS LVLS ON SAT...WILL LET MID SHIFT TAKE A LOOK AT TEMPS TO SEE IF IT IS A BIT AGGRESSIVE TO REACH 90 DEGREES. MIGHT HAVE TO COOL IT 3-5 DEGREES. THE ANTELOPE VALLEY WILL LIKELY ONLY REACH THE LOWER 70S DUE TO THE COOL AIR ADVECTION FROM TONIGHT. BY SUNDAY...HIGH PRESSURE BEGINS TO BUILD IN BEHIND THE UPPER LOW. THE COMBINATION OF WEAK OFFSHORE FLOW AND RISING THICKNESS LVLS AND HEIGHTS...LA COUNTY VALLEYS SHOULD BE ABLE TO REACH THE LOWER TO MID 90S IN THE WESTERN SAN FERNANDO VALLEY...WHILE MOST OTHER VALLEYS REACH THE MID TO UPPER 80S...EXCEPT SLIGHTLY COOLER ACROSS INTERIOR SLO/SBA COUNTIES AS WELL AS THE ANTELOPE VALLEY. NOT MUCH CHANGE EXPECTED FOR MONDAY AS WEAK OFFSHORE FLOW AND A STRENGTHENING RIDGE OF HIGH PRESSURE ALOFT WILL KEEP TEMPS 5 TO 15 DEGREES ABOVE AVERAGE ACROSS THE COAST AND VALLEYS. EXPECT ANOTHER DAY OF LOWER TO MID 90S ACROSS LA/VTU COUNTY VALLEYS WITH SLIGHTLY COOLERS TEMPS ALONG THE COAST. DO NOT ANTICIPATE ANY LOW CLOUDS AND FOG ACROSS THE COASTAL AREAS THROUGH MONDAY. ***FROM PREVIOUS DISCUSSION*** .LONG TERM (TUE-FRI)...MADE LITTLE CHANGE THROUGH THE PERIOD. WESTERN LIMIT OF THE DRY TROPICAL CONTINENTAL AIR MASS WILL PERSIST OVER THE AREA THROUGH WEDNESDAY AND TEMPERATURES WILL LIKELY REMAIN 5 TO 15 DEGREES ABOVE NORMAL. GUIDANCE WAS CONSISTENT WITH PREVIOUS RUNS AND HAVE CONTINUED WITH A COOLING TREND THURSDAY AS WELL AS ON FRIDAY. AND TEMPERATURES WILL LIKELY COOL TO SEASONAL NORMAL BY FRIDAY. && .AVIATION...30/0000Z. VFR CONDITIONS WILL CONTINUE THROUGH SATURDAY. LOW LEVEL WIND SHEAR WILL AFFECT KSBA...KBUR AND KVNY. HIGH CONFIDENCE IN THE 00Z TAFS. KLAX...HIGH CONFIDENCE IN THE 00Z TAF. KBUR...HIGH CONFIDENCE IN THE 00Z TAF. && .LOX WATCHES/WARNINGS/ADVISORIES... WIND ADVISORY (SEE LAXNPWLOX). GALE WARNING (SEE LAXMWWLOX). SMALL CRAFT ADVISORY (SEE LAXMWWLOX). HIGH RIP CURRENT RISK (SEE LAXSRFLOX). && PUBLIC...KAPLAN/BF AVIATION...KAPLAN SYNOPSIS...B WWW.WEATHER.GOV/LOSANGELES
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 600 AM PDT FRI APR 29 2011 CAZ034>041-044>046-051>054-059-087-088-547-548-301300- SAN LUIS OBISPO COUNTY CENTRAL COAST- SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY- SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY- SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST- LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES- VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS- SANTA MONICA MOUNTAINS RECREATIONAL AREA- SAN LUIS OBISPO COUNTY MOUNTAINS- SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY- LOS ANGELES COUNTY SAN FERNANDO VALLEY- LOS ANGELES COUNTY SAN GABRIEL VALLEY- 600 AM PDT FRI APR 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY EXPECT GUSTY NORTHWEST WINDS OVER MOST OF THE REGION TODAY... INCLUDING THE COASTAL WATERS. GAIL WARNINGS ARE IN EFFECT FOR THE OUTER COASTAL WATERS WITH SMALL CRAFT ADVISORIES FOR THE INNER WATERS. OVER LAND...WINDS ARE GUSTING TO OVER 40 MPH IN THE DESERTS AND MOUNTAINS...INCLUDING THE SANTA YNEZ RANGE THIS MORNING. LATER TODAY...STRONG WINDS WILL SURFACE ALONG THE CENTRAL COAST...AS WELL. WIND ADVISORIES ARE IN EFFECT FOR THESE AREAS. LATER TONIGHT...LOOK FOR WINDS TO DIMINISH OVER SANTA BARBARA COUNTY...BUT THEN SHIFT TO THE NORTH...AND THEN NORTHEAST OVER PORTIONS OF VENTURA AND LOS ANGELES COUNTIES BY SATURDAY MORNING. STRONGEST WINDS WILL BE OVER THE SANTA YNEZ RANGE AND THROUGH THE I-5 CORRIDOR WHERE WIND GUSTS OVER 50 MPH ARE EXPECTED. STRONG WINDS OVER THE COASTAL WATERS WILL PRODUCE STRONG CURRENTS AND DANGEROUS RIP CURRENT CONDITIONS ALONG AREA BEACHES. * WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS * * GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS * * HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS * .DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY ON SATURDAY...STRONG...GUSTY NORTHEAST WILL DEVELOP OVER PORTIONS OF VENTURA AND LOS ANGELES COUNTIES. THESE WINDS WILL BE CENTERED ON AN AXIS FROM SOLEDAD CANYON THROUGH SIMI VALLEY AND THE SANTA MONICA MOUNTAINS. LOCAL WINDS GUSTING TO AROUND 50 MPH ARE POSSIBLE THROUGH AND BELOW CANYONS IN THIS REGION. WIND ADVISORIES HAVE BEEN EXTENDED IN THE MOUNTAINS AND NEW ADVISORIES HAVE BEEN ISSUED FOR THE VALLEYS AND THE SANTA MONICA MOUNTAINS IN ANTICIPATION OF THESE WINDS. WHILE WINDS WILL DIMINISH OVER MUCH OF THE REGION SATURDAY AFTERNOON... MORE OFFSHORE WINDS ARE EXPECTED SUNDAY MORNING. AT THIS TIME... THESE ARE NOT EXPECTED TO BE AS STRONG AS THE WINDS SATURDAY MORNING. ALONG WITH THE OFFSHORE WINDS...EXPECT HUMIDITIES TO PLUMMET TO THE TEENS AND EVEN THE SINGLE DIGITS BEGINNING ON SATURDAY AND CONTINUING AT LEAST THROUGH MONDAY. IN ADDITION...TEMPERATURES WILL REBOUND TO ABOVE TO WELL ABOVE SEASONAL NORMALS. THE COMBINATION OF STRONG OFFSHORE WINDS...LOW HUMIDITIES AND HIGH TEMPERATURES WILL ELEVATE THE FIRE WEATHER THREAT OVER LARGE PORTIONS OF VENTURA AND LOS ANGELES COUNTIES THIS WEEKEND THROUGH EARLY NEXT WEEK. * WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS * .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. DANIELSON
2 high wind. Local standard time, as filed.
Strong northerly winds developed through the Santa Ynez Range. The Montecito RAWS sensor reported sustained winds between 40 and 48 MPH with gusts between 59 and 72 MPH.
Strong north to northeast winds developed across the mountains of Los Angeles County. Mill Creek RAWS reported wind gusts between 58 and 60 MPH. the Chilao RAWS reported sustained winds 40-44 MPH with gusts 58-61 MPH. The Camp Nine RAWS sensor reported wind gusts between 58 and 71 MPH.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2011Every state in 2011This day in weather historyWarnings in California, April 2011
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: 288915, 288912.