02 February 2010

Central TAS

Widespread fire activity across TAS this evening, although no real threat to 'property' is present at this time. Two fires which have burnt in excess of 3000 ha (each) remain uncontolled according to the Tasmania Fire Service.

The true-colour MODIS image captures the view from the Aqua satellite around 1500 LT on 2 February. The two large fires noted above a clearly visible, producing widespread thick smoke plumes. A smaller plume is also visible in a break on the cloud edge.

The southern-most region of smoke is from the Wayatinah fire, which was first reporteon 31 Jan 2010. It has burnt 3400 ha to date. The northern plume is from a fire near Lake Mackintosh. This fire is believed to have started in mid-January from a lightning strike. It has burnt 3000 ha to date. More genertally around TAS, particularly off the west coast is smoke from previous days fire activity.

Weatherwise, conditions haven;t been too outrageous. Temperatures over the last few days in the upper-20s and low-30s. But the winds have remained moderate and RH is not too low. After and wet winter and spring, rainfall in the state has remained below normal. Things are drying out and fire season is coming into full swing in the state. Conditions in the area are forecast to be similar for the next day or two, so the threat will remain.

07 January 2010

Northern TAS 2

The York Town fire in northern TAS has continued since first noted earlier in the week. Since that time, it has nearly doubled in size to about 2500 ha burnt. The fire is currently contained, after escaping containment lines yesterday. No homes are under threat at this time, although residents should be alert. See the TAS fire service link on the sidebar for the latest info.


This Aqua MODIS image captured the fire around 1620 LT this afternoon (7 Jan). This image is the same region as three days ago, but a slightly wider view. It's also a bit blurry as it is on the edge of the swath, but a quite extensive smoke plume is seen trailing towards the south. The plume extends south past Launceston. This image is a bit later in the day than normally seen, which could account for some of the larger extent as well...

Weather conditions were similar to what was noted a few days ago as well. Not too hot, moderate winds...Again, a good portion of the ferocity of this fire is driven by the likely high fuel load. Tasmania and much of the SE should expect higher temperatures and increased fire danger over the next 3-4 days. Monday looks to be the worst in many areas...This is the same weather system that brought catastrophic fire weather conditions to southwest WA earlier in the week.

05 January 2010

Southwest WA 3

Bushfires continued to threaten homes and 'property' in southwest WA today.

A large fire in Moore River National Park which began yesterday afternoon threaten the communities of Lancelin, Ocean Farms and Seaview Park today. The threat has eased for the moment. The fire is visible on today's MODIS imagery, but does not have a striking appearance on the imagery, no smoke plumes are apparent, but the burn scar is visible on the 721 image. The fire has burnt nearly 5700 ha and is currently contained.

Other fires were noted this afternoon near Gidgegannup and Wanneroo, on the eastern and northeastern fringes of Perth. Both of these fires have been contained as of this evening.

The fire near Brigadoon noted yesterday has been contained, but is not under control. Approximately 200 ha have been burnt.

As expected, fire weather conditions in the region were quite dangerous today, with temperatures near 40oC and low RH. Winds were generally near 15-20 km/h, but gusty. The forecast for tomorrow (6 Jan) suggests that coastal areas in the region may see some slight relief, but fire weather conditions elsewhere in the Southwest Land Division of WA will be quite dangerous, with catastrophic conditions expected in some inland areas. Temperatures are predicted to reach the low-to mid 40s with fresh gusty winds in the more inland areas.

04 January 2010

Southwest WA quickie

A small but dangerous fire near the town of Brigadoon (on the outskirts of Perth) on 3 Jan has come perilously close to destroying homes. Four firefighters were injured while battling the blaze.

This fire has burnt about 100 ha and is currently not directly threatening 'property', but remains out of control and generally threatening. Temperatures near 40C, along with fresh and gusty winds are again expected in the area on the 5th.

Northern TAS

A serious fire is burning in northern TAS tonight in a state forest near Asbestos Road in the vicinity of York Town. The fire remains out of control at this time. No houses are under threat at this time, but may in the near future. The fire started on 2 Jan, and flared to near its current size of 500 ha on the 3rd. Today, firefighters were forced to retreat for safety's sake due to the fierce spotting.


The image, captured from the Aqua satellite overpass around 1530 LT on the 4th shows a dense smoke plume moving toward the ESE along with a significant area of hotspots. The smoke is directly affecting Beaconsfield (B) and residents in Launceston (L), about 30 km away, are also being affected.

Compared to typical dangerous fire weather conditions on the mainland, the weather is relatively mild. High temperatures were only near 20 C and RH was quite high. Sustained NW winds around 25 km/h with higher gusts are largely driving the fire. This lower threshold of dangerous fire weather in TAS is typical, and probably related to higher fuel loads in the forests found on the island. Forests burn more easily on the island. Conditions will likely worsen with hotter weather and a continuation of the wind expected on the 5th.

30 December 2009

Toodyay, WA plus

Still mostly in holiday mode here, but a few of items of note...

1. At least 37 homes have been destroyed in a bushfire, apparently ignited by a fallen power pole.in Toodyay, WA, approximately 80 km northeast of Perth. The fire started around noon yesterday (29 Dec) and has burnt over 2900 ha. Nearby observations suggest that fire weather conditions were 'catastrophic', with max temperatures in the low 40s, RH below 10% and 40 km/h sustained winds. Cloudy conditions prevented a satellite view of the fire.

2. Just before Xmas saw a significant bushfire near Pt Lincoln, SA. 13 homes and a State Emergency Service base amongst other things were destroyed in the 650 ha blaze. Hot (43C), dry windy conditions prevailed.

3. The rise and fall of TC Laurence has proceeded mostly in line with the general scenario outlined around 2 weeks ago...Lingered in the Pilbara before striking an eastward path across the country, culminating in a large rain event in NSW. The storm made three (I think) landfalls and the subsequent re-intensifications reached category 5 on two occasions. Significant rain in the Pilbara, across northern SA and into NSW. Northeastern NSW in particular saw a good deal of precipitation, although 50+ mm were widespread in the eastern part of the state.

This rain should dampen the fire danger in those areas for at least a week or two anyway. In the north, maybe enough to end the season? More rain in the near future would help this a reality...Northern SA saw a wet Spring, particularly November. These normally arid regions could see a 'green up' in the coming seasons, potential fuel for next year's bushfire season.