An extended period of offshore flow caused strong to high winds across much of Southern California. The first high wind event occurred during the afternoon and evening hours of the 5th as the upper level support was peaking.
Every event with a place to put it; 7 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.
An extended period of offshore flow caused strong to high winds across much of Southern California. The first high wind event occurred during the afternoon and evening hours of the 5th as the upper level support was peaking. High winds were realized in many locations despite the fact that this peak occurred during the diurnally least favored time for Santa Ana winds. Wind gusts reached 75 mph at Fremont Canyon, 64 mph at Rancho Cucamonga, 63 mph at El Cariso, 59 mph at Rialto, 57 mph at Case Springs, 55 mph at Ontario. Winds were sustained 55 mph at Rancho Cucamonga, 52 mph at Fremont Canyon, and 40 mph at Ontario. Damaged or downed power poles were reported in Nuevo, Yucaipa, and Perris, while widespread damage to trees or tree limbs was reported in many other areas. Blowing dust reduced visibility to near zero along interstate 215 and the Ramona Expressway. Elsewhere, high winds in the San Bernardino Mountains near Rim Forest forced vehicles to slide across and off icy stretches of highway 18. Large trees fell onto homes and cars in the Lake Arrowhead area. Small, wind-driven wildfires were reported along interstate 15 near Mormon Rocks and the Cajon Pass. |The second high wind event occurred during the early morning hours of the 7th and the 8th. Wind gusts measured 84 mph at Fremont Canyon and 62 mph at Rialto. Sustained winds at these locations measured 51 mph and 45 mph respectively. The winds caused more damage to trees, flipped over a semi, and left numerous residents without power.|As is typical of most Santa Ana events, Fremont Canyon experienced the worst of the winds. Between the 5th and the 7th, Fremont Canyon RAWS measured 24 wind gusts of 60 mph or greater, 6 wind gusts of 70 mph or greater, and 2 wind gusts in excess of 80 mph.
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 Jan 5, 3:30 AM PST, 1 hour 27 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 330 AM PST FRI JAN 5 2007 .SYNOPSIS...DEPARTING UPPER LEVEL LOW PRESSURE WILL CAUSE A FEW LINGERING SHOWERS THIS MORNING. DEVELOPING OFFSHORE FLOW WILL BRING DRYING AND MOSTLY CLEAR SKIES THROUGH THE WEEKEND WITH LOCAL STRONG GUSTY WINDS AT TIMES...MAINLY THROUGH AND BELOW MOUNTAIN CANYONS AND PASSES. COOL TODAY THEN WARMER DAYS THROUGH EARLY NEXT WEEK. A STORM COULD BRING MORE CLOUDS...COOLING AND A CHANCE OF SHOWERS TOWARD THE END OF NEXT WEEK. && .DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... .SHORT TERM (TODAY-SUNDAY)...VARIABLE CLOUDINESS AND ISOLATED SHOWERS CONTINUED THROUGH EARLY THIS MORNING. EARLY MORNING ACARS SOUNDINGS INDICATED STRONG WLY WINDS ALOFT. ONSHORE GRADIENTS TO THE E BUT TURNING OFFSHORE FROM THE N. MOISTURE ROTATING AROUND THE W SIDE OF THE UPPER TROUGH WILL CONTINUE ISOLATED SHOWERS THIS MORNING. THE ATMOSPHERE WILL RAPIDLY DRY AS THE FLOW TURNS N TO NE DURING THE DAY TODAY. THERE WILL BE GOOD UPPER SUPPORT BUT ONLY MODERATE GRADIENT AND THERMAL SUPPORT FOR OFFSHORE WINDS. EXPECT THE STRONGEST WINDS TO BE IN THE SANTA ANA MOUNTAINS AND BELOW THE CAJON PASS LATE TONIGHT INTO SAT MORNING. THE WINDS WILL TAPER OFF SAT AFTERNOON THROUGH SUN BEFORE STARTING TO REDEVELOP SUN NIGHT. WILL GO WITH HIGH WIND WARNING FOR THE SAN BERNARDINO MOUNTAINS...INLAND EMPIRE AND SANTA ANA MOUNTAINS WITH WIND ADVISORY IN THE ORANGE COUNTY COASTAL AREAS...RIVERSIDE MOUNTAINS...SAN DIEGO MOUNTAINS AND SAN DIEGO INLAND VALLEYS THROUGH 6 PM SAT. ALSO WIND ADVISORY FOR THE DESERTS AND SAN DIEGO COASTAL AREAS FOR THE W TO NW WINDS EARLY TODAY. THE DRY OFFSHORE WINDS WILL INCREASE THE FIRE WEATHER HAZARD FOR A RED FLAG WARNING IN THE MOUNTAINS AND INLAND VALLEYS THROUGH MON AFTERNOON. COOL TODAY THEN WARMER SAT AND SUN...ESPECIALLY SUN W OF THE MOUNTAINS. .LONG TERM (MONDAY-THURSDAY)...THE OFFSHORE FLOW WILL BRIEFLY REDEVELOP MON MORNING WITH LOCAL STRONG GUSTY WINDS THROUGH AND BELOW MOUNTAIN CANYONS AND PASSES ONCE AGAIN. OTHERWISE...HIGH PRESSURE ALOFT WILL KEEP SKIES MOSTLY CLEAR WITH A WARM DAY IN MOST AREAS MON. GRADUALLY COOLING INTO MID WEAK AS HEIGHT DECREASE AND OFFSHORE FLOW WEAKENS OR TURN BACK ONSHORE. ANOTHER UPPER TROUGH OF LOW PRESSURE SHOULD BRING MORE CLOUDS...COOLING AND A CHANCE OF SHOWERS NEXT THU. && .AVIATION... UPPER TROUGH EXITING THE AREA THIS MORNING WITH SOME LINGERING SHOWERS/CIGS EXPECTED THROUGH 15Z...ESPECIALLY ON THE FOOTHILLS AND COASTAL SLOPES. THESE AREAS SHOULD CLEAR BY...OR SHORTLY AFTER 15Z AS A DRY N TO NE FLOW DEVELOPS ACROSS THE REGION. OTHERWISE MOSTLY CLEAR SKIES AND UNRESTRICTED VSBYS THROUGH TONIGHT. STRONG AND GUSTY NW OF 25 TO 35 KNOTS NEAR MOUNTAIN TOP EARLY THIS MORNING WILL VEER TO THE NORTH...NORTH OF SAN DIEGO COUNTY BY 12Z... AND OVER THE REST OF THE AREA BY 15Z. STRONG WINDS IN EXCESS OF 35 KTS WILL CREATE AREAS OF SIGNIFICANT TURBULENCE AND WAVE/ROTOR ACTIVITY...ESPECIALLY SOUTH OF THE SAN BERNARDINOS. AFTER 15Z LOW LEVEL WINDS THROUGH AND BELOW CANYONS IN THE SANTA ANA MOUNTAINS AND BELOW THE CAJON PASS MAY EXCEED 50 KTS...CREATING DANGEROUS LOW LEVEL WIND SHEAR AND SEVERE TURBULENCE. THESE CONDITIONS ARE EXPECTED TO PERSIST THROUGH TONIGHT. && .MARINE... A MODERATE WEST SWELL AND LARGE SHORT-PERIOD WIND WAVE...COMBINED WITH 25 TO 35 KT WINDS THIS MORNING WILL CREATE HAZARDOUS SMALL CRAFT CONDITIONS...SLOWLY SUBSIDING LATER THIS AFTERNOON. IN ADDITION...SURF OF 5 TO 7 FEET WITH LOCAL SETS TO 10 FEET WILL CREATE HAZARDOUS BEACH CONDITIONS WITH DANGEROUS RIP CURRENTS AND SOME LOCAL FLOODING OF LOW-LYING AREAS LATE THIS MORNING DURING HIGH TIDE. A HIGH SURF ADVISORY IS IN EFFECT. && .SGX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING FOR THE SAN BERNARDINO MOUNTAINS...INLAND EMPIRE AND SANTA ANA MOUNTAINS THROUGH 6 PM SAT. SEE LAXNPWSGX. WIND ADVISORY FOR THE DESERTS AND SAN DIEGO COASTAL AREAS UNTIL 2 PM TODAY. SEE LAXNPWSGX. RED FLAG WARNING FOR THE MOUNTAINS AND INLAND VALLEYS LATE THIS MORNING THROUGH MONDAY AFTERNOON. SEE LAXRFWSGX. HIGH SURF ADVISORY UNTIL 10 PM PST TONIGHT FOR ORANGE COUNTY AND SAN DIEGO COUNTY COASTS. SEE LAXCFWSGX. GALE WARNING FOR THE OUTER WATERS UNTIL 8 AM AND SMALL CRAFT ADVISORIES FOR THE INNER AND OUTER WATERS THROUGH THIS AFTERNOON. SEE LAXCWFSGX. && PUBLIC...DVA AVIATION/MARINE...JAD
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 400 AM PST FRI JAN 5 2007 CAZ042-043-048-050-055>058-060>062-PZZ750-775-060000- ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-SAN DIEGO COUNTY VALLEYS-RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-SAN DIEGO COUNTY MOUNTAINS-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 AM PST FRI JAN 5 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT LOCAL STRONG GUSTY WEST TO NORTHWEST WINDS TO TURN OFFSHORE FROM THE NORTHEAST LATER TODAY. THE STRONG...DRY OFFSHORE WINDS COULD BE POTENTIALLY DAMAGING AND WILL INCREASE THE FIRE WEATHER HAZARD. HIGH WIND WARNING FOR THE SAN BERNARDINO MOUNTAINS...INLAND EMPIRE AND SANTA ANA MOUNTAINS THROUGH 6 PM SAT. SEE LAXNPWSGX. WIND ADVISORY FOR THE DESERTS AND SAN DIEGO COASTAL AREAS UNTIL 2 PM TODAY. SEE LAXNPWSGX. RED FLAG WARNING FOR THE MOUNTAINS AND INLAND VALLEYS LATE THIS MORNING THROUGH MONDAY AFTERNOON. SEE LAXRFWSGX. HIGH SURF ADVISORY UNTIL 10 PM PST TONIGHT FOR ORANGE COUNTY AND SAN DIEGO COUNTY COASTS. SEE LAXCFWSGX. GALE WARNING FOR THE OUTER WATERS UNTIL 8 AM AND SMALL CRAFT ADVISORIES FOR THE INNER AND OUTER WATERS THROUGH THIS AFTERNOON. SEE LAXCWFSGX. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY HIGH WIND WARNING FOR THE SAN BERNARDINO MOUNTAINS...INLAND EMPIRE AND SANTA ANA MOUNTAINS THROUGH 6 PM SAT. SEE LAXNPWSGX. RED FLAG WARNING FOR THE MOUNTAINS AND INLAND VALLEYS LATE THIS MORNING THROUGH MONDAY AFTERNOON. SEE LAXRFWSGX. .SPOTTER INFORMATION STATEMENT...SKYWARN WEATHER ACTIVATION IS NOT REQUESTED AT THIS TIME...HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS. DVA
The national radar mosaic for the moment the first event began.
5 high wind, 2 wildfire. Local standard time, as filed.
Downed power lines sparked a 670 acre wildfire near Lake Mathews. Gusty Santa Ana winds were to blame for the rapid spread of this fire. No structures were damage.
Named the Red Star Fire, this fire buned approximately 175 acres near Prado Regional Park in Chino. Gusty Santa Ana winds were to blame for the rapid spread of the fire. No injuries were reported and no structures were burned.
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, January 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: 12676, 12674, 12677, 13807, 12675, 12678, 13806.