A late-season cold front moved across Southern California, bringing strong west to northwest winds to the mountains of Ventura and Los Angeles counties. These gusty winds knocked down several power lines in the Antelope Valley, resulting in some scattered power outages.
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.
A late-season cold front moved across Southern California, bringing strong west to northwest winds to the mountains of Ventura and Los Angeles counties. These gusty winds knocked down several power lines in the Antelope Valley, resulting in some scattered power outages. In addition, scattered shower activity behind the cold front produced isolated downbursts across sections of Los Angeles counties. The downburst winds knocked down about 20 power poles and one electrical transmitter.
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 Mar 27, 9:40 AM PST, 1 hour 50 minutes earlier.
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 1040 AM PDT TUE MAR 27 2007 UPDATED AVIATION DISCUSSION .SHORT TERM (TUESDAY THROUGH THURSDAY)... CONSIDERING AN UPDATE TO THE FORECAST THIS MORNING. A VERY COLD AND DEEP TROUGH HAS PUSHED A LITTLE FURTHER SOUTH AND PLACED THE FORECAST AREA IN A MORE FAVORABLE POSITION TO BE AFFECTED BY JET DYNAMICS. THE ACTUAL UPPER LEVEL TROUGH DOES NOT CROSS THE FORECAST AREA UNTIL LATE THIS AFTERNOON. ALSO...THE FORECAST MODELS SHOW FURTHER COOLING AT 500 MB...TAKING THE TEMPERATURES AT THAT LEVEL DOWN TO -30C OVER PORTIONS OF LOS ANGELES COUNTY AND CREATING A LIFTED INDEX DOWN AROUND 0 WHICH INDICATES A FAIRLY UNSTABLE ATMOSPHERE. WATER VAPOR PICTURES SHOW A VORT MAX APPROACHING THE AREA AND RADAR SHOWS AN AREA OF SHOWERS NEAR POINT CONCEPTION. DO AGREE THAT WITH VERY STRONG WINDS ACROSS THE FORECAST AREA...IT MAY BE DIFFICULT FOR UPDRAFTS TO SURVIVE THE TURBULENT WINDS...HOWEVER THE POSSIBILITY OF WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IS IMPOSSIBLE TO RULE OUT GIVEN THE OTHER FAVORABLE FACTORS. NOT TO MENTION THAT IT IS LATE IN THE SEASON...AND A LATE MARCH SUN COULD PRODUCE SOME DECENT HEATING FOR THIS AFTERNOON. THEREFORE...WILL EXTEND THE CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS THROUGH THIS AFTERNOON...DURING THE PERIOD OF MAXIMUM HEATING. GIVEN THE LACK OF CLOUDS AT THIS HOUR...WILL TRIM BACK ON CLOUD COVERAGE TO PARTLY CLOUDY SINCE ANY PRECIPITATION THAT DOES OCCUR IS EXPECTED TO BE FAIRLY ISOLATED IN NATURE. OF EQUAL OR GREATER SIGNIFICANCE TODAY WILL BE THE VERY STRONG WINDS THAT WILL AFFECT VIRTUALLY THE ENTIRE FORECAST AREA. A HIGH WIND WARNING IS IN PLACE FOR THE MOUNTAINS OF SANTA BARBARA...VENTURA AND LOS ANGELES COUNTIES AS WELL AS THE ANTELOPE VALLEY. WIND ADVISORIES ARE IN PLACE FOR THE REMAINDER OF THE FORECAST AREA. THE ANTELOPE VALLEY MAY BE INTERESTING THIS AFTERNOON WITH AREAS OF BLOWING DUST AND NEAR ZERO VISIBILITY AT TIMES. THE WIND WARNINGS/ADVISORIES ALL EXPIRE AT 9 PM TONIGHT OR 3 AM WEDNESDAY DEPENDING ON LOCATION. CONSULT THE PRODUCT LAXNPWLOX FOR MORE DETAILS. TEMPERATURES WILL BE COOL TODAY WITH LOW HEIGHTS AND THICKNESS...ESPECIALLY FOR THIS TIME OF YEAR. CONDITIONS WILL START TO IMPROVE TONIGHT ALTHOUGH THERE WILL BE SOME LINGERING SHOWERS ON THE NORTHERN SLOPES OF THE MOUNTAINS AND SOME GUSTY WINDS THROUGH THE I-5 CORRIDOR. WEDNESDAY THROUGH THURSDAY WILL BE CHARACTERIZED BY LOCALLY GUSTY WINDS THROUGH PASSES AND CANYONS ALONG WITH CLEAR SKIES AND WARMER TEMPERATURES. .LONG TERM (FRIDAY THROUGH MONDAY)... FOR FRIDAY THROUGH SUNDAY...DRY...OFFSHORE CONDITIONS WILL CONTINUE WITH ABOVE-NORMAL TEMPERATURES AND CLEAR SKIES. AT THIS TIME...LOOKS LIKE WARMEST DAY WILL BE SATURDAY. BY SUNDAY NIGHT/MONDAY...WEAK ONSHORE FLOW IS FORECAST TO RETURN TO THE AREA. SO...SOME COASTAL AREAS COULD SEE THE RETURN OF THE MARINE LAYER...WHILE ALL AREAS COOL. && .AVIATION...27/1740Z ALL AIRFIELDS SHOULD REMAIN VFR WITH WINDY CONDITIONS THROUGH THIS EVENING. LINGERING SHOWERS WILL REMAIN IN THE AREA SO A FEW AIRFIELDS MAY SEE A RAIN OB THROUGH ABOUT 02Z...POSSIBLY GOING TO DOWN TO MVFR. THESE SHOWERS WILL ALSO CREATE A SHORT ENHANCEMENT TO THE WINDS. THE AIRMASS WILL CONTINUE TO DESTABILIZE INTO THIS AFTERNOON...SO STILL EXPECTING ISOLATED THUNDERSTORMS BETWEEN 20Z AND 02Z...WITH THE BEST CHANCE NORTH OF KSBA. WINDS WILL BE VERY STRONG AT KPMD AND KWJF TODAY...WITH GUSTS IN THE 40 KT RANGE BY 21Z...WITH BLOWING SAND AND DUST A GOOD POSSIBILITY BETWEEN 20Z AND 03Z. VIS WILL BE TOUGH TO PEG IF A DUST STORM DOES OCCUR DUE TO THE LARGE VIS VARIABILITY IN SUCH SITUATIONS...BUT IN ALL LIKELIHOOD SHOULD NOT GO BELOW 3SM. ALL OTHER AIRFIELDS SHOULD EXPECT GUSTY NW WINDS...WITH GUSTS IN THE 20 KT RANGE. LLWS IS POSSIBLE AT SOME AIRFIELDS AS WELL...BUT WILL WAIT FOR SOME REPORTS BEFORE MENTIONING IN TAFS. KLAX...GUSTY W TO NW WINDS ARE A LITTLE LATE IN ARRIVING...BUT SHOULD BE THERE BY 20Z AT THE LATEST. EXPECTING SUSTAINED WINDS IN THE 20 KT RANGE...WITH GUSTS REACHING INTO 30 KT. GUSTS SHOULD RELAX BY 03Z. VFR CATS SHOULD CONTINUE THROUGH THIS EVENING...BUT SHOWERS REMAIN IN THE AREA AND CANNOT RULE OUT ONE HOUR WITH A VFR/MVFR SHOWER. WILL AMEND IF SHOWERS FORM CLOSE TO THE AIRPORT. THERE IS ALSO AN OUTSIDE CHANCE OF A VCNTY THUNDERSTORM BETWEEN 20Z AND 02Z. KBUR...GUSTY NW WINDS ARE A LITTLE LATE IN ARRIVING...BUT SHOULD BE THERE BY 21Z AT THE LATEST. EXPECTING WINDS TO GUST INTO THE 20 KT RANGE...THEN RELAXING AFTER MIDNIGHT. VFR CATS SHOULD CONTINUE THROUGH THIS EVENING...BUT SHOWERS WILL FORM OVER ADJACENT MOUNTAIN THIS AFTERNOON AND CANNOT RULE OUT ONE HOUR OR TWO OF VFR/MVFR SHOWERS DRIFTING OFF THE MOUNTAINS. THERE IS ALSO AN OUTSIDE CHANCE OF A VCNTY THUNDERSTORM BETWEEN 20Z AND 02Z. && .MARINE... STRONG GALE FORCE NW WINDS WILL CONTINUE ACROSS THE COASTAL WATERS THROUGH LATE THIS EVENING. CONDITIONS WILL LIKELY STILL WARRANT A SMALL CRAFT AFTER TONIGHT...ESPECIALLY FOR THE OUTER WATERS. SEAS WILL CONTINUE TO BUILD THROUGH WEDNESDAY...WITH SEAS EXPECTED TO PEAK WEDNESDAY MORNING...NEAR 16 FT FOR OUTER WATERS...AND NEAR 10 FT FOR INNER WATERS. SURF WILL ALSO BE ABOVE NORMAL ALONG ALL FOUR COUNTY COASTS...BUT JUST UNDER ADVISORY LEVELS OVERALL. SEE MWSLOX FOR MORE DETAILS. && .LOX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING (SEE LAXNPWLOX). WIND ADVISORY (SEE LAXNPWLOX). GALE WARNING (SEE LAXCWFLOX). HIGH RIP CURRENT RISK (SEE LAXSRFLOX). MARINE WEATHER STATEMENT (SEE LAXMWSLOX). ABOVE NORMAL SURF (SEE LAXCFWLOX). && PUBLIC...SWEET AVIATION...KITTELL WWW.WEATHER.GOV/LOSANGELES
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 600 AM PDT TUE MAR 27 2007 CAZ034>041-044>047-051>054-059-087-088-281300- 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- LOS ANGELES COUNTY VALLEYS-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- 600 AM PDT TUE MAR 27 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA. .DAY ONE... TODAY A QUICK MOVING PACIFIC STORM WILL MOVE THROUGH SOUTHERN CALIFORNIA THIS MORNING...WITH STRONG AND GUSTY WEST TO NORTHWEST WINDS ACROSS THE ENTIRE FORECAST AREA. THE ANTELOPE VALLEY AND THE LOS ANGELES...VENTURA...SANTA BARBARA COUNTY MOUNTAINS...INCLUDING THE INTERSTATE 5 CORRIDOR. POTENTIALLY DAMAGING GUSTS NEAR 60 MPH LIKELY TODAY. IF ON THE ROAD...KEEP EYES OPEN FOR FALLEN TREES AND DOWNED POWER LINES. BEWARE OF BLOWING SAND WHICH CAN REDUCE VISIBILITY TO NEAR ZERO IN THE ANTELOPE VALLEY. GUSTY NORTHWEST WINDS ARE ALSO EXPECTED LATE TONIGHT BELOW PASSES AND CANYONS OF THE SANTA BARBARA COUNTY SOUTH COAST INCLUDING GAVIOTA PASS...WITH GUSTS NEAR 50 MPH POSSIBLE...AND IN THE MOUNTAINS OF SAN LUIS OBISPO COUNTY. THIS SAME STORM WILL BRING STRONG NORTHWEST WINDS ACROSS MOST OF THE COASTAL WATERS TODAY. WIDESPREAD GALE FORCE CONDITIONS ARE POSSIBLE ALONG WITH BUILDING SEAS TO POTENTIALLY HAZARDOUS HEIGHTS. MARINERS SHOULD EXPECT HAZARDOUS SEA CONDITIONS AND SEEK SAFE HARBOR FOR TONIGHT. THERE WILL BE A HIGH RIP CURRENT RISK TODAY WITH HIGHER THAN NORMAL SURF ALONG THE WEST FACING BEACHES FROM LOS ANGELES TO SAN LUIS OBISPO COUNTY TODAY THROUGH THIS EVENING DUE TO STRONG WINDS AND LARGER WESTERLY SWELL. SNOW LEVELS WILL LOWER SHARPLY THIS MORNING...DOWN TO 3500 FEET. SNOW ACCUMULATIONS OF AN INCH OR TWO ARE POSSIBLE IN THE MOUNTAINS...AND SNOW COULD AFFECT TRAVEL ON INTERSTATE 5 NEAR THE GRAPEVINE. THUNDERSTORMS ARE POSSIBLE TODAY. SOME STORMS COULD PRODUCE SMALL HAIL. * HIGH WIND WARNING..........SEE WWUS76 KLOX - NPWLOX FOR DETAILS * * WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS * * GALE WARNING...............SEE FZUS56 KLOX - CWFLOX FOR DETAILS * * HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS * * MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS * * COASTAL FLOOD STATEMENT....SEE WHUS46 KLOX - CFWLOX FOR DETAILS * .DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY TEMPERATURES WILL BE COLDER THAN NORMAL ON WEDNESDAY...WITH POSSIBLE FROST ADVISORIES NEEDED FOR SOME LOCATIONS .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. KAPLAN
3 high wind, 1 strong wind. Local standard time, as filed.
A spotter in the Lake Los Angeles area reported gusty west winds blew down two power poles. The downed power poles started a small fire and generated some local power outages.
Scattered showers behind a cold front produced gusty downburst winds in the community of Montebello. The downburst winds knocked down 20 power poles and one steel electrical transmitter. A NWS Storm Survey Team investigated the event and determined that due to the age of the equipment the downburst winds did not exceed 50 MPH.
RAWS sensors at Camp 9 and Warm Springs reported west to northwest winds gusting to 63 MPH.
RAWS sensors at Camp 9 and Warm Springs reported west to northwest winds gusting to 63 MPH.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2007Every state in 2007This day in weather historyWarnings in California, March 2007
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: 21157, 21155, 21147, 21148.