Category Archives: Heat Wave

Extensive period of heat last days to even weeks

Effects of Storms

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Effects of Storms

Effects of Storms can be anything from the change in temperature to the damage in some cases - extreme destruction. Storms can impact people and property in many ways. Generally, the more severe the storms, the more the impact.

The media often report on stories such a Tropical Cyclone Yasi and Debbie and the impact of other storms such as trees through houses. Of course, a lot depends on the climate of the region.
In Europe and the North America, the effect of storms and weather can be from snow or ice! Snow can cause major disruptions to transports including roads and airport due to accidents or closures. Electricity supply failures can also occur

Approaching storms can also raise dust reducing visibility and eroding good top soil from agricultrual land.
Furthermore, Australia is a country prone to major bushfires which can destroy property, cause loss of livestock and also take lives..


Australia is a land of extremes and with droughts comes the floods. Major losses occur to property in terms of insurance values and loss of items runs into the tens of millions. This flood in Lismore certainly illustrates the impacts on the local community. Roads were also damaged in more recent floods: the dangers are certainly evident!

Some of the most intense efects of storms damage images come from tornadoes. Tornadoes can cause vehicles and even house to be relocated with even whole communities being destroyed. Greensburg suffered from its fate on the evening of the 4th May 2007. A 2.7km wide major tornado made a direct hit on the country township obliterating anything in its path!

Unusual April heat SE Australia 5 and 6 April 2016

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MaxtempNSW

MaxtempAust

TempanomalyNSW

TempanomalyAust

SatelliteimageAustralia

A strong cold front passing across southern Australia has heralded what should be the end of the summer heat. The air ahead of this front has been relatively hot and maximum daytime temperatures have soared well above average.

In areas such as Western Sydney, it has reached 30C on two consecutive days which is quite rare for April. Generally, it has reached 30C on 4 of the first 6 days of April in areas such as Penrith and Richmond and 3 days in areas such as Blacktown and Camden.

It is suggested that a new April maximum high temperature has been set for Sydney (6/4/2016) following a maximum of 34C being recorded in the city.

In Victoria, maximum temperatures soared well above average during Tuesday with maximum temperatures reaching 29C in Melbourne, 30.5C at Swan Hill, 31.7C at Geelong, 31.8C at Albury and 32C at Mildura. The cold front dropped temperatures sharply throughout the state during Wednesday as hot dry north west winds were replaced with colder south to south westerly winds.

Across New South Wales, some high maximum daytime temperatures have occurred which is more common of summer rather than April. At Bourke in particular, it reached 36.6C on the 5/4/16 and 38.6C on the 6/4/16 and it is suggested that was the hottest April day anywhere in New South Wales for 30 years (Source Weatherzone 6/4/2016).

The air ahead of the front has seen maximum temperatures push into the mid 30Cs in areas that would not normally see such degree of heat at this time of year including:-

Penrith - 36.2C at 3 pm.
Camden, Maitland and Tocal - 36C at 3 pm.
Blacktown - 35.7C.
Moruya - 35C before the change went through late afternoon.
Sydney city - 34C at 1.24 pm (This event follows a downpour overnight Sunday / Monday that saw 94.4 mm of rain fall).

Even places such as Canberra reached 30.5C at 3 pm and Bathurst had 30C.

The cold front certainly made its presence felt because Merimbula on the New South Wales far south coast only reached 23C due to the early arrival of the change and Bega only reached 24.2C at 10.30 am.

There was a wide maximum daily temperature variation between Merimbula and Moruya on the New South Wales south coast due to the presence of the cold front moving slowly along the south coast.

With the passage of the cold front, it is unlikely that such high temperature will be seen again this summer season across south east Australia and Autumn is expected to take hold as the transition towards winter gathers pace.

The plots taken from the Bureau of MeteorologyWater and the Land” for:-

1 - Maximum temperature for 6/4/16 for New South Wales and Australia.
2 - Maximum temperature anomaly for 6/4/16 for New South Wales and Australia.

Are attached.

Both show the heat affecting the state and the impact of the cold front passing through. Interestingly across a narrow swathe of New South Wales being south east to north west, the maximum temperature anomaly was 10C to 12C above average for the day. This is an incredible contrast to Victoria where maximum temperatures were 4C to 6C below the long term average behind the change.

The satellite photo of south east Australia dated 6/4/2016 shows the cold front and cloud mass generated. Some light to moderate rain has fallen across southern Victoria but generally there was not much rain with the change further north as it passed through. (Source - Himawari 8 / Bureau of Meteorology and dated 6/4/2016).

Southern Australia early March heatwave 1 to 12 March 2016

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Sundaysheat

Mondaysheat

Tuesdaysheat

WorlviewSouthernAust6Mar

Another heatwave is unfolding across Southern Australia during the first few days of March. This heatwave is likely to be the last for the summer 2015/2016 season.

The heatwave is covering a large portion of inland Australia and several inland centres are experiencing temperatures in the high 30s and low 40s. There are signs that the current heat will be waning in intensity late in the week as temperatures start to moderate. However for the time being, it is expected to be quite hot at least until Friday or Saturday in some centres.

As shown in the satellite photo of southern Australia dated 6 March 2016, a few clouds exists across the inland but for the most part, clear skies predominate. It is also dry again especially across more northern areas.

I have recently flown across the wheat sheep belt of Central New South Wales and it is clear that the regions near Forbes and Parkes are incredibly dry and in need for desperate rain.

Some exceptional temperatures recorded for early March 2016 include:-

1 - Hay - It has reached 40C on two consecutive days being 39C on the 4/3, 41.1C on the 5/3 and 40.5C on the 6/3.

2 - Deniliquin - 39.4C on the 5/3/2016 and 39.1C on the 6/3/2016.

3 - Fowlers Gap - 39C on the 6/3/2016.

4 - Albury - 38.2C on the 5/3/2016.

The worst of the heat is affecting the inland regions but it is noted that much of Western Sydney has enjoyed 5 days in a row where maximum temperatures have reached into the low 30s.

Some forecast maximum temperatures for Monday to Saturday include:-

Albury - Mon (38C), Tue (38C), Wed (37C), Thu (36C), Fri (36C) and Sat (35C).
Blacktown - Mon (32C), Tue (31C), Wed (35C), Thu (33C), Fri (32C) and Sat (31C).
Broken Hill - Mon (39C), Tue (39C), Wed (38C), Thu (38C), Fri (37C) and Sat (34C).
Cobar - Mon (38C), Tue (37C), Wed (37C), Thu (37C), Fri (37C) and Sat (37C).
Dubbo - Mon (35C), Tue (35C), Wed (35C), Thu (35C), Fri (35C) and Sat (34C).
Goulburn - Mon (33C), Tue (31C), Wed (34C), Thu (32C), Fri (31C) and Sat (30C).
Ivanhoe - Mon (40C), Tue (40C), Wed (40C), Thu (40C), Fri (39C) and Sat (39C).
Penrith - Mon (34C), Tue (33C), Wed (36C), Thu (34C), Fri (33C) and Sat (33C).
Tibooburra - Mon (39C), Tue (38C), Wed (39C), Thu (39C), Fri (38C) and Sat (38C).
Wagga Wagga - Mon (37C), Tue (38C), Wed (37C), Thu (37C), Fri (37C) and Sat (36C).

As shown, there is evidence of maximum temperatures moderating towards the end of the week which is suggesting some form of a change approaching or passing through. Hot weather in early March is common but generally after the middle of the month as Autumn takes more effect, a cooling trend will commence.

Credits

Bureau of Meteorology 6/3/2016 - Water and the Land maximum temperature plot.
NASA (MODIS Worldview) Southern Australia acquired 6/3/2016.

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