Wildfire, S Sierra Mtns
- When
- August 1, 12:00 AM PST to August 31, 11:59 PM PST
- Where
- S Sierra Mtns forecast zone
- Reported by
- Park/Forest Service
Wildfire in California, August 1 to 31, 2010
The Slope Wildfire in Yosemite National Park ignited on July 25, 2010 at 1445 PDT. The cause was lightning.
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
What happened
The episode as NWS HNX wrote it up.
The Slope Wildfire in Yosemite National Park ignited on July 25, 2010 at 1445 PDT. The cause was lightning. The location was northwest of White Wolf in Tuolumne County. The size was 1709 acres. This fire was not contained until early October due to rainfall. The cost was $75,000. There were no fatalities or property damages reported.
What forecasters said that day
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 Hanford, CA wrote its last area forecast discussion before the first event at Jul 31, 8:00 PM PST, 4 hours earlier.
Area forecast discussion, Jul 31, 8:00 PM PST, 4 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA 900 PM PDT SAT JUL 31 2010 .SYNOPSIS... A WARM AND DRY SOUTHWEST FLOW ALOFT WILL KEEP CLEAR SKIES ALONG WITH NEAR SEASONAL TEMPERATURES OVER THE AREA INTO AT LEAST EARLY NEXT WEEK. && .UPDATE... NO CHANGES OBSERVED IN THE WEATHER PATTERN OVER CENTRAL CALIFORNIA THIS EVENING AS CLEAR AND WARM CONDITIONS CONTINUE. 24 HOUR TEMPERATURE CHANGE CHARTS WERE SHOWING VALLEY LOCATIONS RUNNING SIMILAR TO THEIR FRIDAY EVENING READINGS. IN ADDITION...AS THE DISTRICT CONTINUES UNDER A SOUTHWESTERLY FLOW ALOFT...ONLY A FEW CLOUDS WERE OBSERVED OVER THE MOUNTAIN CREST. SHORT RANGE MODELS PROGGING LITTLE CHANGE IN THE FLOW ALOFT WITH DRY AND WARM CONDITIONS EXPECTED ON SUNDAY. THEREFORE...NO UPDATES TO THE FORECAST NEEDED THIS EVENING AS ALL WEATHER ELEMENTS ON TRACK WITH THE LATEST MODEL PROGS. IN ADDITION...FORT ORD PROFILER DATA STILL SHOWING THE MARINE LAYER NEAR BELOW 2000 FEET AGL WITH LITTLE CHANCES OF SEE ANY COOLER AIR FILTERING INTO THE VALLEY. THEREFORE...ANOTHER HOT AND DRY DAY EXPECTED FOR SUNDAY. WILL MAKE NO UPDATES THIS EVENING. && .PREV DISCUSSION... /ISSUED 223 PM PDT SAT JUL 31 2010/ CENTRAL CALIFORNIA REMAINS IN A DRY SW FLOW ALOFT IN BETWEEN A RIDGE IN THE SW U.S. AND AN UPPER TROUGH TOWARDS OR/CAL. AN INITIAL UPPER TROUGH LIFTS NE TONIGHT. HOWEVER ADDITIONAL UPPER ENERGY UPSTREAM WILL MAINTAIN A TROUGH TOWARDS NCAL THROUGH THE WEEKEND. THIS WILL MAINTAIN A COOL DRY MARITIME FLOW INTO CENTRAL CALIFORNIA. WHILE SHUNTING ANY SUBTROPICAL MOISTURE TOWARDS AZ AND SONORAN DESERT. THE PAC NW TROUGH WILL MOVE NE MONDAY ALLOWING THE SW RIDGE TO STRENGTHEN OVER S CAL. THIS WILL BRINGING A WARMING TREND ACROSS CENTRAL CAL THROUGH MID WEEK. LONGER TERM OPERATIONAL MODELS ARE TRENDING COOLER TOWARDS THE LATTER PART OF NEXT WEEK. THE 12Z GFS ENSEMBLE MEAN ALSO IN AGREEMENT WITH THIS SCENARIO. AN UPPER TROUGH DEVELOPS OFF THE WEST COAST WEDNESDAY NIGHT...THAN SLOWLY SHIFTS INLAND OVER MUCH CALIFORNIA FOR THURSDAY AND FRIDAY. WSW UPPER FLOW SHOULD PROVIDE A DRY STABLE FLOW ACROSS THE DISTRICT AND LIMIT THE THREAT FOR THUNDERSTORMS OVER THE SIERRA. SYNOPTIC COOLING MAY COOL TEMPERATURES TOWARDS NORMAL LEVELS. BUT THE COOLER TEMPERATURES COULD BE FELT IN THE SAN JOAQUIN VALLEY DUE TO ADDITIONAL COOLING FROM A DEEPER MARINE LAYER AND STRONGER ONSHORE GRADIENTS PUSHING MARINE AIR INTO INTERIOR CALIFORNIA. && .AVIATION... VFR CONDITIONS WILL PREVAIL ACROSS THE CENTRAL CA INTERIOR THROUGH 12Z SUNDAY. && .AIR QUALITY ISSUES...ON SUNDAY AUGUST 1 2010... UNHEALTHY FOR SENSITIVE GROUPS IN FRESNO... KERN AND TULARE COUNTIES. FURTHER INFORMATION IS AVAILABLE AT VALLEYAIR.ORG && .HNX WATCHES/WARNINGS/ADVISORIES... NONE. && PUBLIC...MOLINA AVN/FW...DCH SYNOPSIS...PJ WEATHER.GOV/HANFORD
Event by event
1 wildfire. Local standard time, as filed.
What these are
- Wildfire
- A fire burning in wildland vegetation, with its acreage and damage where known.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Excessive Heat and Heat in Tennessee, August 1 to 5, 2010
- Excessive Heat in Mississippi, August 1 to 4, 2010
- Excessive Heat and Heat in Mississippi, August 1 to 5, 2010
- Excessive Heat in Oklahoma, August 1 to 6, 2010
- Excessive Heat and Heat in Arkansas, August 1 to 6, 2010
- Excessive Heat in Louisiana, August 1 to 2, 2010
- Flooding in Texas, August 1 to 20, 2010
- Drought in Louisiana, August 1 to 31, 2010
- Flooding in Iowa, August 1 to 31, 2010
- Drought in Mississippi, August 1 to 31, 2010
- Flash Flooding in New Mexico, August 1, 2010
- Tornadoes and Hail in North Dakota, August 1, 2010
More
Every storm in California in 2010Every state in 2010This day in weather historyWarnings in California, August 2010
Sources
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: 259373.