Downslope winds and mountain wave activity resulted in a widespread strong wind event (isolated high wind) on the desert slopes of the mountains and eastward. A high wind gust caused property damage to three homes in a Palm Springs neighborhood.
Every event with a place to put it; 2 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.
Downslope winds and mountain wave activity resulted in a widespread strong wind event (isolated high wind) on the desert slopes of the mountains and eastward. A high wind gust caused property damage to three homes in a Palm Springs neighborhood. One homeowner had his roof ripped off while others reported broken fences, damaged solar panels, and downed trees. Poor visibility due to blowing dust caused several road closures in the Coachella Valley. Thermal airport ASOS measured a 52 mph wind gust and a privately owned weather station at a golf course in La Quinta measured a 57 mph wind gust. It should be noted that the storm data preparer does not know the construction quality of the home that lost its roof.
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 Feb 27, 3:00 AM PST, 3 hours 50 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 300 AM PST TUE FEB 27 2007 .SYNOPSIS... A WEAK COLD FRONT WILL MOVE THROUGH TODAY WITH ANOTHER SYSTEM TONIGHT THROUGH WEDNESDAY. SOME SHOWERS WERE ALREADY OVER THE AREA FROM THE DEEP MARINE LAYER. WINDS WILL INCREASE TODAY AND BECOME VERY STRONG OVER THE MOUNTAINS AND DESERTS THROUGH WEDNESDAY. DAMAGING WINDS ARE POSSIBLE IN THESE AREAS. LOW VISIBILITIES DUE TO BLOWING DUST AND SAND IN THE DESERTS WILL BE POSSIBLE THROUGH WEDNESDAY. THE SYSTEM WILL MOVE EAST WEDNESDAY EVENING. HIGH PRESSURE ALOFT WILL SLOWLY INCREASE...ALTHOUGH A WEAK TROUGH WILL MOVE OVER FRIDAY MORNING. A HIGH PRESSURE RIDGE WILL BEGIN TO MOVE OVER LATE FRIDAY AND INCREASE SATURDAY WITH LITTLE CHANGE SUNDAY. A WEAK OFFSHORE FLOW WILL MAKE IT QUITE WARM DURING THE WEEKEND. HIGH PRESSURE ALOFT WILL WEAKEN MONDAY AS A WEAK TROUGH MOVES THROUGH. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... MARINE LAYER ABOUT 6-7K FT DEEP AND GIVING OFF A FEW SHOWERS. WEAK COLD FRONT MOVING INTO LA COUNTY AT 2 AM. SOME SHOWERS AHEAD OF THE FRONT WERE CLOSE TO ORANGE AND SOUTHWEST SAN BERNARDINO COUNTY EARLY THIS MORNING. SHOWERS SHOULD BEGIN ABOUT 3 AM WITH THE FRONT MOVING IN ABOUT 6 AM. MORE RAIN AND SHOWERS WILL MOVE IN TONIGHT THROUGH WEDNESDAY. PRECIPITATION AMOUNTS SHOULD BE AROUND A QUARTER INCH IN THE COASTAL AREAS WITH NEAR ONE HALF INCH IN THE FOOTHILLS TO AROUND AN INCH IN THE MOUNTAINS WITH A FEW HUNDREDTHS IN THE DESERTS THROUGH WEDNESDAY. WINDS WILL BECOME VERY STRONG IN THE MOUNTAINS AND DESERTS TODAY AS A STRONG JET STREAM DEVELOPS OVER SOUTHERN CALIFORNIA. THE STRONG WINDS WILL CONTINUE THROUGH WEDNESDAY. IT WILL ALSO BE BREEZY ELSEWHERE. HIGH PRESSURE ALOFT GRADUALLY INCREASES LATE WEDNESDAY THROUGH THURSDAY. A WEAK TROUGH WILL MOVE THROUGH FRIDAY MORNING...THEN A RIDGE OF HIGH PRESSURE WILL MOVE OVER THE STATE SATURDAY WITH LITTLE CHANGE SUNDAY. OFFSHORE FLOW BEGINS TO DEVELOP FRIDAY AND INCREASES SATURDAY FOR SOME BREEZY NORTHEAST WINDS OVER THE MOUNTAINS AND IN THE INLAND VALLEYS TO ORANGE COUNTY THROUGH SUNDAY. HIGH PRESSURE WEAKENS MONDAY AS A WEAK TROUGH SLIDES THROUGH AND AN ONSHORE FLOW DEVELOPS. && .AVIATION... 271030Z...THE 7000 FOOT DEEP MARINE LAYER PERSISTS WITH MOST BASES AS HIGH AS 5000 FEET MSL. A COLD FRONT WILL MOVE ACROSS THE AREA THIS MORNING FROM THE NORTHWEST...BRINGING WITH IT SCATTERED SHOWERS AND STRONG WINDS. MULTIPLE LAYERS OF STRATOCU ARE EXPECTED WITH BASES BTWN 2500-3000 FT LOCALLY AT OR BELOW 2000 FEET MSL IN SHOWERS. THERE MAY BE SOME BRIEF CLEARING THIS AFTERNOON BEHIND THE FRONT...EXCEPT INLAND VALLEYS AND MOUNTAINS WHERE CLOUDS AND SHOWERS WILL LINGER. STRONG WESTERLY WINDS ALOFT WILL CAUSE CAUSE MOUNTAIN WAVE/ROTOR ACTIVITY WITH STRONG UDDFS OVER THE MOUNTAINS AND IN THE DESERTS THROUGH WEDNESDAY NIGHT. SURFACING WAVE ACTIVITY COULD GENERATE LOCAL WIND GUSTS IN EXCESS OF 60 MPH WITH AREAS OF BLOWING DUST. A SECOND FRONT WILL BRING AN ANOTHER ROUND OF SHOWERS ON WEDNESDAY. && .SGX WATCHES/WARNINGS/ADVISORIES... CA...HIGH WIND WARNING UNTIL 10 PM PST WEDNESDAY FOR THE MOUNTAINS AND DESERTS. PZ...NONE. && PUBLIC/FIRE WEATHER...WHITLOW AVIATION/MARINE.......MACKECHNIE NWS ON THE WEB AT WEATHER.GOV/SANDIEGO
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 645 AM PST TUE FEB 27 2007 CAZ042-043-048-050-055>058-060>062-PZZ750-775-280000- 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- 645 AM PST TUE FEB 27 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST CALIFORNIA .DAY ONE...TODAY AND TONIGHT VERY STRONG GUSTY SOUTHWEST WINDS IN THE MOUNTAINS AND DESERTS AND LOCALLY BREEZY ELSEWHERE. SEE LAXNPWSGX. CHANCE OF RAIN...MOUNTAIN SNOW AND DENSE FOG IN THE MOUNTAINS TODAY CREATING HAZARDOUS TRAVEL CONDITIONS MAINLY IN THE HIGHER TERRAIN. LOW VISIBILITIES DUE TO BLOWING DUST AND SAND IN THE DESERTS. SNOW AND BLOWING SNOW ADVISORY IN THE HIGHER MOUNTAINS ABOVE 4500 FEET. SEE LAXWSWSGX FOR DETAILS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY VERY STRONG GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS AND LOCALLY BREEZY ELSEWHERE WEDNESDAY. SEE LAXNPWSGX. CHANCE OF RAIN...MOUNTAIN SNOW AND DENSE FOG IN THE MOUNTAINS WEDNESDAY CREATING HAZARDOUS TRAVEL CONDITIONS MAINLY IN THE HIGHER TERRAIN. LOW VISIBILITIES DUE TO BLOWING DUST AND SAND IN THE DESERTS WEDNESDAY. CONDITIONS IMPROVING WEDNESDAY AFTERNOON. SNOW AND BLOWING SNOW ADVISORY IN THE HIGHER MOUNTAINS ABOVE 4500 FEET UNTIL 10 PM WEDNESDAY. SEE LAXWSWSGX FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SKYWARN WEATHER ACTIVATION IS NOT REQUESTED FOR THIS AREA...HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS. WHITLOW/DVA
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 530 AM PST TUE FEB 27 2007 CAZ042-043-048-050-055>058-060>062-272230- 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- 530 AM PST TUE FEB 27 2007 ...A COLD LOW PRESSURE TROUGH WILL BRING RAIN AND MOUNTAIN SNOW TO SOUTHERN CALIFORNIA THROUGH WEDNESDAY NIGHT...WITH AREAS OF VERY STRONG GUSTY WINDS IN THE MOUNTAINS AND DESERTS... A LARGE TROUGH WAS DEEPENING INTO SOUTHERN SOUTHERN THIS MORNING. IT WILL CONTINUE TO DEEPEN THROUGH WEDNESDAY MORNING. SHOWERS WILL BE SPREADING ACROSS THE AREA TODAY WITH SNOW IN THE MOUNTAINS ABOUT 4000 FEET TODAY...LOWERING TO 3500 FEET BY WEDNESDAY MORNING. SNOW ACCUMULATION IS EXPECTED TO BE UP TO 6 INCHES IN THE HIGHER ELEVATIONS THROUGH WEDNESDAY WITH THE RAINFALL EXPECTED TO BE A HALF INCH OR LESS WEST OF THE MOUNTAINS...WHILE AN INCH OR MORE COULD ACCUMULATE IN THE MOUNTAINS MAINLY IN THE COASTAL SLOPES. A FEW HUNDREDTHS OF AN INCH OR TRACE AMOUNTS ARE EXPECTED IN THE DESERTS. THE COMBINATION OF WIND...SNOW...AND FOG WILL CAUSE VERY LOW VISIBILITIES AT TIMES AND CREATE HAZARDOUS TRAVEL CONDITIONS. THE PRECIPITATION IS EXPECTED TO DECREASE WEDNESDAY AFTERNOON. WINDS ALOFT WILL BE INCREASING TODAY THROUGH WEDNESDAY. SOME AREAS IN THE MOUNTAINS AND DESERTS COULD EXPERIENCE DAMAGING WINDS WITH VERY HAZARDOUS CONDITIONS. SOME AREAS WILL EXPERIENCE SUSTAINED WINDS TO 40 MPH AND GUSTS TO 70 MPH. LOW VISIBILITY FROM BLOWING DUST AND SAND ALONG WITH THE STRONG GUSTY WINDS WILL MAKE TRAVEL HAZARDOUS IN THE DESERT AREAS. ANYONE PLANNING TRAVEL INTO OR THROUGH THE MOUNTAINS OR ACROSS THE DESERTS THROUGH WEDNESDAY SHOULD KEEP AWARE OF THE LATEST WEATHER DEVELOPMENTS AND MONITOR THE LATEST FORECASTS. A HIGH WIND WARNING IS IN EFFECT FOR THE MOUNTAINS AND THE DESERTS UNTIL 10 PM WEDNESDAY NIGHT. WHITLOW
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
Measured at Burns Canyon.
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, February 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: 18509, 18508.