The Pendleton Fire began at approximately 3:30 PM PDT on August 31st near Yucaipa. Evacuations were ordered for 1,100 homes and some roads were closed.
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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.
The Pendleton Fire began at approximately 3:30 PM PDT on August 31st near Yucaipa. Evacuations were ordered for 1,100 homes and some roads were closed. One residential structure and one outbuilding were destroyed in the 860 acre fire, which was contained on September 3rd. One injury was reported. The cause of the 1.49 million dollar fire is still under investigation.
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 Aug 31, 1:00 PM PST, 1 hour 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN DIEGO CA 200 PM PDT MON AUG 31 2009 .SYNOPSIS...UPPER LEVEL HIGH PRESSURE OVER THE SOUTHWEST WILL CONTINUE VERY WARM WEATHER THROUGH MID WEEK...ESPECIALLY INLAND. COOLER BY THE END OF THE WEEK AS THE HIGH WEAKENS. MID LEVEL MOISTURE IN SOUTHEAST FLOW WILL BRING A SMALL CHANCE OF THUNDERSTORMS TO THE MOUNTAINS AND DESERTS DURING THE AFTERNOONS THROUGH WEDNESDAY. A REDEVELOPING MARINE LAYER WILL CAUSE COASTAL LOW CLOUDS AND LOCALLY DENSE FOG DURING THE NIGHTS AND MORNINGS. THE MARINE LAYER WILL ALSO MODERATE TEMPERATURES NEAR THE COAST. && .DISCUSSION...FOR SOUTHWEST CALIFORNIA INCLUDING SAN DIEGO... ORANGE...SOUTHWEST SAN BERNARDINO AND WEST RIVERSIDE COUNTIES. .SHORT TERM (TODAY-WEDNESDAY)...PATCHY STRATUS AND FOG STILL LINGER AT SOME BEACHES THIS AFTERNOON WITH THE MARINE LAYER INVERSION BELOW 1000 FT. MID-LEVEL CLOUDS MOVING OVER THE AREA IN SE FLOW ALOFT ARE MODERATING TEMPS INLAND THIS AFTERNOON...BUT WILL BE OUT OF THE AREA AND SHOULD NOT INHIBIT RADIATION COOLING TONIGHT. STRONG UPPER LEVEL HIGH PRESSURE WILL CONTINUE OVER THE SW. WHILE THERE WILL BE SLIGHT COOLING...MAX TEMPS WILL BE WELL ABOVE SEASONAL AVERAGES WITH HOT DAYS INLAND. HOWEVER...A REDEVELOPING MARINE LAYER AND INTERMITTENT COASTAL EDDY WILL MODERATE MAX TEMPS NEAR THE COAST. THE MARINE LAYER WILL BE FAIRLY SHALLOW WITH LOW CLOUDS AND FOG MOSTLY CONFINED TO THE COASTAL AREAS. THERE COULD BE LOCAL DENSE FOG ON THE HIGHER COASTAL TERRAIN. SINCE THE UPPER HIGH HAS SHIFTED E IT WILL ALLOW LIMITED MOISTURE CIRCULATING AROUND THE HIGH TO MOVE INTO OUR AREA ON SE WINDS. THIS WILL CAUSE A SLIGHT CHANCE OF THUNDERSTORMS DURING THE AFTERNOONS IN THE MOUNTAINS AND DESERTS...MAINLY IN THE SRN AREAS TODAY WITH A LITTLE BETTER CHANCE ON TUESDAY. THE HOT AND MOSTLY DRY WEATHER WILL MAINTAIN AN ELEVATED FIRE WEATHER THREAT...BUT THIS WILL GRADUALLY BE MITIGATED BY SLOWLY INCREASING HUMIDITIES. .LONG TERM (THURSDAY-SUNDAY)...COOLER WITH A DEEPER MARINE LAYER AS THE HIGH WEAKENS IN RESPONSE TO A TROUGH APPROACHING FROM THE NW AND THEN MOVING PAST TO THE N. LINGERING MOISTURE FROM THE REMNANTS OF HURRICANE JIMENA COULD BRING MORE HIGH CLOUDINESS TOWARD THE END OF THE WEEK AND CONTINUE THE POSSIBILITY OF AFTERNOON SHOWERS/TSTMS OVER THE MTNS. && .AVIATION... 312015Z..MID AND HIGH LEVEL CLOUDS MOVING NORTHWEST HELPED TO BREAK UP THE MARINE LAYER THIS MORNING. AREAS OF LOW CLOUDS AND FOG STILL HUG THE IMMEDIATE COAST IN ORANGE AND SAN DIEGO COUNTIES HOWEVER. BECAUSE OF THE MID AND HIGH LEVEL CLOUDS TIMING OF THE RETURN OF THE MARINE LAYER TONIGHT IS DIFFICULT BUT DO EXPECT IT TO SPREAD INLAND BETWEEN 03 AND 05Z. WE ALSO EXPECT THE MARINE LAYER TO BE SHALLOW AGAIN WITH VSBY 1/4MILE IN FOG AND CEILINGS BELOW 500 FT MSL QUITE POSSIBLE AT KSAN AND KCRQ BY OR BEFORE SUNRISE TUESDAY. OTHERWISE OCCASIONAL MID AND HIGH CLOUDS EXPECTED. ALSO SOME INCREASE IN SUBTROPICAL MOISTURE WILL CONTINUE WHICH MAY CAUSE MORE DEVELOPMENT OF AFTERNOON CUMULUS OVER THE SAN DIEGO MOUNTAINS AND A THUNDERSTORM IS POSSIBLE IN THE FAR SOUTH END OF THE SAN DIEGO COUNTY MOUNTAINS AND DESERTS THIS AFTERNOON AND TUESDAY AFTERNOON. TOPS AROUND 40K FT. && .SGX WATCHES/WARNINGS/ADVISORIES... SPECIAL WEATHER STATEMENT FOR THE HOT WEATHER...SEE LAXSPSSGX. && PUBLIC...PG AVIATION...ECC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 400 AM PDT MON AUG 31 2009 CAZ042-043-048-050-055>058-060>062-PZZ750-775-010000- 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 AM PDT MON AUG 31 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY THROUGH TONIGHT CONTINUED HOT INLAND. PREVENT HEAT EXHAUSTION AND HEAT STROKE BY AVOIDING STRENUOUS ACTIVITIES DURING THE HOTTEST PART OF THE DAY. PATCHY DENSE FOG IN THE COASTAL AREAS THIS MORNING WITH LOCAL VISIBILITY LESS THAN ONE QUARTER MILE AT TIMES. SLIGHT CHANCE OF THUNDERSTORMS OVER THE SAN DIEGO COUNTY MOUNTAINS AND DESERTS AND RIVERSIDE COUNTY MOUNTAINS THIS AFTERNOON. THE FLASH FLOOD POTENTIAL INDEX IS LOW...THE RISK OF ANY FLASH FLOODING IN MINIMAL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY CONTINUED HOT INLAND THROUGH WEDNESDAY. PREVENT HEAT EXHAUSTION AND HEAT STROKE BY AVOIDING STRENUOUS ACTIVITIES DURING THE HOTTEST PART OF THE DAY. SLIGHT CHANCE OF THUNDERSTORMS OVER THE MOUNTAINS AND DESERTS TUESDAY AND WEDNESDAY AFTERNOONS. THE FLASH FLOOD POTENTIAL INDEX IS LOW...THE RISK OF ANY FLASH FLOODING IN MINIMAL. .SPOTTER INFORMATION STATEMENT...SKYWARN SPOTTER ACTIVATION IS NOT REQUESTED FOR THIS AREA...HOWEVER WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS. ATKIN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 324 PM PDT MON AUG 31 2009 CAZ042-043-048-050-055>058-060>062-012300- 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- 324 PM PDT MON AUG 31 2009 ...CONTINUED VERY WARM TO HOT DAYS THROUGH THURSDAY... NEARLY STATIONARY HIGH PRESSURE OVER THE SOUTHWESTERN STATES WILL CONTINUE TO BRING VERY WARM WEATHER THOUGH THURSDAY. DAYTIME TEMPERATURES WILL REMAIN WELL ABOVE AVERAGE FOR THIS TIME OF YEAR. NOT QUITE AS WARM NEAR THE COAST DUE TO A SHALLOW MARINE LAYER. HOWEVER...JUST A FEW MILES INLAND THE HIGHS WILL BE NEAR 90. WELL INLAND...AWAY FROM THE COOLING EFFECTS OF THE MARINE LAYER... THE HEAT WILL CONTINUE. INLAND VALLEY AND UPPER DESERT HIGHS WILL RANGE FROM 95 TO 105. MOUNTAIN HIGHS WILL RANGE FROM 85 AT 6000 FEET...TO AROUND 100 IN THE FOOTHILLS. LOWER DESERT HIGHS SHOULD BE MODIFIED SOMEWHAT BY INCREASING HUMIDITY. HIGHS FROM 100 TO 108 DEGREES ARE LIKELY...BUT HEAT INDICES COULD REACH 110 AT TIMES. COOLING IS FORECAST LATE IN THE WEEK AS A LOW PRESSURE TROUGH APPROACHES FROM THE PACIFIC NORTHWEST. THE COOLING WILL CONTINUE OVER THE LABOR DAY WEEKEND WHEN HIGH TEMPERATURES SHOULD BE CLOSE TO...OR SLIGHTLY BELOW SEASONAL AVERAGES. TO PREVENT HEAT EXHAUSTION AND HEATSTROKE...AVOID STRENUOUS ACTIVITIES DURING THE HOTTEST PART OF THE DAY. WEAR LIGHT-COLORED AND LOOSE-FITTING CLOTHING AND DRINK PLENTY OF WATER. NEVER LEAVE PEOPLE OR PETS IN ENCLOSED AUTOMOBILES...EVEN FOR A SHORT TIME. JAD/MOEDE
The national radar mosaic for the moment the first event began.
1 wildfire. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2009Every state in 2009This day in weather historyWarnings in California, August 2009
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: 194638.