Updated at 10:50 p.m. ET
Prime Minister Scott Morrison is calling up 3,000 reservists for operations related to the massive bushfires in eastern Australia that have forced mass evacuations and killed at least 11 people since Monday.
Record heat has contributed to the ferocity of blazes. Flames now threaten the outskirts of the country's largest city, Sydney.
Authorities are warning of worsening conditions over the weekend. The rural fire service deputy commissioner for New South Wales, Rob Rogers, has warned of the "frighteningly quick" advance of the blazes.
"With the fuel loads that we've got and the drought conditions and the current weather conditions that we have, frankly, we can't put these large fires out," Mick Holton, president of the Volunteer Fire Fighters Association, told NPR's Morning Edition.
![A firefighter sprays foam retardant on a back burn ahead of a fire front in the New South Wales town of Jerrawangala on New Year's Day.](https://npr.brightspotcdn.com/dims4/default/602fb13/2147483647/strip/true/crop/4706x3193+0+0/resize/880x597!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fgettyimages-1191130683_custom-a5d915b20e6e1bb89aeb26a17dd9c0fbd6883e27.jpg)
Holton says firefighters are at the mercy of changing weather conditions.
"We're paying the price for probably lack of fuel management," he added.
![Evacuees walk to the beach at Mallacoota in Victoria to board vessels and be ferried out.](https://npr.brightspotcdn.com/dims4/default/bff1306/2147483647/strip/true/crop/3512x1710+0+0/resize/880x428!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2F20200103ran8100087_025_custom-cd91e4c113c46be057cad1804423e267abb8ef4e.jpg)
![Crews monitor fires and begin back burns between the towns of Orbost and Lakes Entrance in East Gippsland, east of Melbourne, on Thursday.](https://npr.brightspotcdn.com/dims4/default/65a11a8/2147483647/strip/true/crop/4208x2830+0+0/resize/880x592!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fgettyimages-1197103068_custom-b5c22837244773cb082ce61427eaddd018c8f083.jpg)
![A view of fire damage on Friday in Sarsfield, east of Melbourne. Thousands of people have been stranded in the remote coastal town following fires across East Gippsland.](https://npr.brightspotcdn.com/dims4/default/d04f069/2147483647/strip/true/crop/5405x3620+0+0/resize/880x589!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fgettyimages-1197208926_custom-8fdffe13dec8074eb81675b19c0204a431782f5a.jpg)
Forecasters from Australia's Bureau of Meteorology expect the weather on Saturday to intensify the fire dangers in New South Wales and Victoria.
In a Saturday morning local time update, one forecaster said, "The changes arriving later in the day today, in comparison to New Year's Eve, [are] giving more time for those strong" winds to affect the fire regions.
Temperatures are expected to reach into the low- to mid-40 degrees Celsius in some parts of the two states. That's between 104 and 114 degrees Fahrenheit.
![HMAS Choules, aiding in the evacuations, is seen off the coast of Mallacoota, Victoria.](https://npr.brightspotcdn.com/dims4/default/0303ec0/2147483647/strip/true/crop/3593x2191+0+0/resize/880x537!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2F20200102ran8100087_017_custom-6d0426f6e458ea0ca200763a3e350ba4d5ac6435.jpg)
![Evacuees from Mallacoota are transported by landing craft to MV Sycamore.](https://npr.brightspotcdn.com/dims4/default/077ddf2/2147483647/strip/true/crop/3562x2375+0+0/resize/880x587!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2F20200103ran8565840_041_custom-d30c0677d33d051a45070cb86b6dab425e542863.jpg)
The warnings come after two people were killed Saturday in a blaze that devastated a large swath of Kangaroo Island, police told the Australian Broadcasting Corporation.
ABC reports "up to 150,000 hectares — about a quarter of the island — has been burnt and authorities are warning of significant property losses."
![Bushfires are seen between the towns of Orbost and Lakes Entrance in East Gippsland on Thursday. HMAS Choules evacuated thousands of people stranded in the remote coastal town of Mallacoota.](https://npr.brightspotcdn.com/dims4/default/c8b0925/2147483647/strip/true/crop/5452x3591+0+0/resize/880x580!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fgettyimages-1197103191_custom-61ed17e6966732fb76d9ceaa6ab3cafe70d84a63.jpg)
![A helicopter drops water on a bushfire outside of Batemans Bay in New South Wales on Thursday.](https://npr.brightspotcdn.com/dims4/default/ef12237/2147483647/strip/true/crop/2976x1959+0+0/resize/880x579!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fgettyimages-1191258040_custom-5292c616e5966d2f78edbf09f4b6f10cd3dae3c0.jpg)
![Smoke rises from a massive bushfire in this image released Thursday by the Department of Environment, Land, Water and Planning in Gippsland, Victoria.](https://npr.brightspotcdn.com/dims4/default/db2a0db/2147483647/strip/true/crop/1438x1944+0+0/resize/880x1190!/quality/90/?url=https%3A%2F%2Fmedia.npr.org%2Fassets%2Fimg%2F2020%2F01%2F03%2Fap_20002318152021_custom-678a978f9742cf7d5d3804b27e1819bc25862ba5.jpg)
"Victoria Police Chief Commissioner Graham Ashton said the number of people missing now stood at 21, seven fewer than the number unaccounted for 24 hours earlier," ABC reported.
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