Los Angeles ( CNN ) -- Firefighters and homeowners were anxiously awaiting to learn Saturday whether the emergence of cool ocean breezes and possible rain will weaken a Los Angeles-area wildlfire that has burned 28,000 acres in two days and now threatens 4,000 homes . The weather change could be a mixed blessing , however , because a chance of isolated thunderstorms this weekend brings a risk of lightning sparking new fires , the California Department of Forestry and Fire Protection said . The Los Angeles area fire , based in Ventura County , has damaged 15 residences and five commercial properties and has destroyed 25 outbuildings , fire authorities said . The inferno , called the Springs Fire , raced about 10 miles beside upscale communities and through the Santa Monica Mountains since it began Thursday morning in Camarillo , California . It reached the Pacific Ocean shore , damaging a Navy shooting range next to coastal wetlands Friday . iReporter captures bird's-eye view of the wildfire . A total of 1,895 fire personnel , six fixed-wing air tankers and 11 helicopters have battled the blaze , but as of Saturday morning , the fire was only 30 % contained , an improvement over Thursday 's 10 % and Friday 's 20 % . That means 300 commercial properties and 250 outbuildings also are threatened , authorities said Saturday . `` A low pressure weather system has developed over the fire bringing higher humidity , lower temperatures , creating an opportunity to increase containment , '' the state fire agency said . The region 's so-called Santa Ana winds -- dubbed `` devil winds '' because they are warm and gusty out of the high desert -- have been fueling the Ventura County wildfire . The virtual absence of recent rain also created dry conditions ripe for the wildfires , whose season typically begins much later in the year . `` Onshore winds have begun to diminish this evening allowing for the expiration of all red flag warnings , '' the National Weather Service said late Friday . The Santa Ana winds gusted to 45 mph the past two days , energizing the roaring flames . Authorities ordered a mandatory evacuation Friday for the affluent Ventura County community of Hidden Valley , northwest of Los Angeles . Evacuations remained in effect Friday evening for several other areas . Share your images . Federal funding was made available to cover 75 % of firefighting costs , the Federal Emergency Management Agency announced Friday . Also on Friday , the Ventura County blaze crossed the scenic Pacific Coast Highway that separates the Santa Monica Mountains from the sea . There , small fires blackened the landscape surrounding a military firing range , a Navy spokeswoman said . Several timber backdrops at the range were partially or completely burned , but because the facility sits in wetlands next to a lagoon , the fires were n't a threat to Naval Base Ventura County at Point Mugu , said spokeswoman Kimberly Gearhart . Ammunition is n't stored at the facility , she said . `` If something catches fire , it 's in the best possible place because it 's isolated and it 's near water , '' Gearhart said . `` Our biggest concern right now is smoke because it 's a very smoldering fire , and as the wind shifts , it either blows smoke toward or away from us . '' Evacuation orders were in effect in several areas on Saturday , but officials lifted orders for the campus of California State University , Channel Islands in Camarillo and for the Dos Vientos community in Newbury Park , authorities said . Many Ventura County residents , especially those who live in or near the mountains , were on edge about the fires and possible evacuation . `` The sheriff said they would come pounding on the door if they came close , '' said Ventura County resident Elizabeth Dickenson . Because of the smoke , ash and winds , people in affected areas were urged to be cautious and to avoid unnecessary outdoor activities , the Ventura County Air Pollution Control District said . CNN meteorologist Chad Myers described the fire as an omen for California because the wildfire season is n't supposed to start until August or September . Mountain chaparral and shrubs are dry because Los Angeles has received only half of its normal rainfall the past two years , Myers said . The vegetation is brown , instead of green from winter rain , he said . The Los Angeles area has received less than 2 inches of rain since January , making the bone-dry region `` definitely ripe for these fires , '' said William Patzert , a NASA climatologist . But that could change soon . Rain showers could hit the area Sunday evening , forecasters say . CNN 's Paul Vercammen , Stephanie Elam , Diahann Reyes , Phil Gast and Lateef Mungin also contributed to this report .
Cool onshore breezes and possible rain could weaken fires in Los Angeles . But rain prediction could bring heat that could spark new fires . Fire is only 30 % contained and threatens 4,000 homes . Sheriff deputies will be on door if they come close , he says .