The Knight Fire started on July 26th, burning a forested area by the Middle Fork of the Stanislaus River.
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 STO wrote it up.
The Knight Fire started on July 26th, burning a forested area by the Middle Fork of the Stanislaus River.
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 Sacramento, CA wrote its last area forecast discussion before the first event at Jul 25, 8:30 PM PST, 3 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 930 PM PDT SAT JUL 25 2009 .DISCUSSION... FORECAST AREA REMAINS UNDER LIGHT UPPER LEVEL SOUTH TO SOUTHWEST FLOW BETWEEN HIGH CENTERED NEAR THE 4 CORNERS AREA AND A LOW PRESSURE SYSTEM MOVING SLOWLY THROUGH THE PACIFIC NORTHWEST. AIRMASS WARMED JUST A BIT TODAY AS THE UPPER HIGH BEGAN TO BACK TO THE NORTH AND WEST. MOST LOCATIONS SAW A WARMING OF ABOUT 1 TO 4 DEGREES. ONE AREA THAT SAW A MORE SIGNIFICANT WARM UP WAS THE DELTA AND NEAR DELTA AREAS DUE TO A SOMEWHAT DECREASED DELTA BREEZE. TEMPERATURES IN THE DELTA AND SOUTHERN SACRAMENT VALLEY WERE 5 TO 10 DEGREES WARMER TODAY. TEMPERATURES IN THESE AREAS ARE NOW RUNNING 10 TO 14 DEGREES WARMER THAN LAST EVENING DUE TO STILL WEAKER DELTA BREEZE. ONSHORE GRADIENT HAS INCREASED A BIT SINCE THE AFTERNOON BUT IS FORECAST TO REMAIN RELATIVELY WEAK THROUGH THE NIGHT. IN ADDITION...FORT ORD PROFILER INDICATES MARINE LAYER HAS BEEN SQUASHED DOWN TO AROUND 1200 FEET. THEREFORE...EXPECT OVERNIGHT LOWS TO BE SIGNIFICANTLY WARMER TONIGHT THAN THIS MORNING AND SLIGHTLY WARMER ELSEWHERE AS AIRMASS CONTINUES TO WARM. ALSO...PATCHY STRATUS INTRUSION THAT OCCURRED OVER THE LAST TWO NIGHTS IS UNLIKELY TO REOCCUR TONIGHT. MODELS CONTINUE TO SHOW SIGNIFICANT WARM UP ON SUNDAY THROUGH TUESDAY AS 4 CORNERS HIGH MERGES WITH HIGH OVER THE NORTHEASTERN PACIFIC AND HEIGHTS CLIMB. SURFACE PROGS SHOW ONLY WEAK ONSHORE FLOW THROUGH TUESDAY. 850 MB TEMPS FOR THE NORTHERN SACRAMENTO VALLEY MAX OUT AT AROUND 29C ON TUESDAY WHICH DRY ADIABATICALLY TRANSLATES DOWN TO AROUND 110 DEGREE FAHRENHEIT. MAX TEMP RECORD FOR RED BLUFF ON TUESDAY IS 112 DEGREES SO DAYTIME HIGHS WILL BE NUDGING RECORDS. GFS 500 MB MOISTURE PROGS SHOW MONSOON MOISTURE AND A LITTLE INSTABILITY OVER THE SIERRA TUESDAY SO SLIGHT CHANCE POPS SOUTH OF TAHOE LOOK OKAY FOR NOW. .EXTENDED DISCUSSION (WEDNESDAY THROUGH SATURDAY)...HOT CONDITIONS WILL PREVAIL OVER THE REGION THROUGH AT LEAST WEDNESDAY...AS HIGH PRESSURE REMAINS IN PLACE. SOME MID LEVEL MOISTURE AND INSTABILITY MAY ALSO BE ABLE TO WORK NORTHWARD ALONG THE SIERRA CREST ON WEDNESDAY...WITH A SLIGHT CHANCE OF THUNDERSTORMS POSSIBLE DURING THE AFTERNOON AND EVENING. THIS THREAT OF AFTERNOON AND EVENING THUNDERSTORMS WILL CARRY OVER INTO THURSDAY...AS THE RIDGE AXIS BEGINS TO SHIFT EAST AND AN UPPER LEVEL LOW APPROACHES THE NORTHERN CALIFORNIA COAST. EXTENDED MODELS TRENDING TOWARDS BETTER AGREEMENT AND PLACEMENT OF THE LOW AND STILL KEEP IT OFFSHORE THROUGH THE EXTENDED PERIOD BUT CONTINUE TO DIFFER ON DETAILS. EITHER WAY...TEMPERATURES SHOULD START TO COOL ACROSS THE REGION DURING THE LATTER PART OF THE WORK WEEK. AS UPPER LOW EDGES CLOSER TO THE COAST UPPER FLOW SHOULD RETURN TO MORE SOUTHWEST REDUCING THUNDERSTORM THREAT OVER THE SIERRA. && .AVIATION...VFR CONDITIONS WILL CONTINUE TO PREVAIL OVER THE NEXT 24 HOURS. && .STO WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 530 AM PDT SAT JUL 25 2009 CAZ013>019-063-064-066>069-261400- SHASTA LAKE AREA/NORTHERN SHASTA COUNTY- BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY- CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY- CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY- MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES- CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE- EAST FOOTHILLS/NORTH SACRAMENTO VALLEY- WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA- 530 AM PDT SAT JUL 25 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY HOTTER TEMPERATURES WILL RETURN TO THE INTERIOR OF NORTHERN CALIFORNIA EARLY NEXT WEEK WITH WARMEST TEMPERATURES ACROSS PORTIONS OF THE CENTRAL VALLEY REACHING 105 TO 110 DEGREES MONDAY THROUGH WEDNESDAY...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT (LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO
1 wildfire. Local standard time, as filed.
A wildfire started on July 26th along the Middle Fork of the Stanislaus River, near Mt. Knight, in Stanislaus County. The fire had burned 2734 acres by the end of July and continued to burn into August. It brought multiple local road closures and smoke to the nearby area.
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, July 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: 186730.