Showing posts with label weather. Show all posts
Showing posts with label weather. Show all posts

Saturday 4 January 2014

Australian Bureau of Meteorology's Climate Statement 2013


No matter how hard the Australian Prime Minister and Liberal-National Coalition MPs in the Abbott Government attempt to minimise the effects of climate change or deny outright the reality of global warming, the facts are increasingly evident.


Wednesday 9 January 2013

Australian National Heatwave 9 January 2013



Australian Bureau of Meteorology Northern Rivers forecast for Wednesday 9 January:

Sunny morning. The chance of showers and thunderstorms from midday, with little, if any, rain reaching the ground. Winds north to northwesterly 25 to 35 km/h tending northwesterly in the middle of the day then shifting south to southeasterly in the afternoon. Overnight temperatures falling to the low to mid 20s with daytime temperatures reaching 37 to 42.
Fire Danger - Far North Coast: Severe
UV Alert from 8:50 am to 5:00 pm, UV Index predicted to reach 13 [Extreme]

Thursday 26 July 2012

Gone to sea


Years ago the NSW Government was told that climate change effects would mean that many of the state’s beaches would disappear over time.
This is Yamba’s main beach in the winter courtesy of The Daily Examiner online. Notice the absence of any hint of sand at high tide.

Sadly at low tide the beach is a pale ghost of its former self as Coastalwatch's live SurfCam shows.
This is a foolish Clarence Valley Council trying to defy the might of the sea and changed ocean conditions:
 
Erosion at Turner's Beach, Yamba
Pic from The Daily Examiner
UPDATE:
In a 17th July 2012 media release Clarence Valley Council and Mayor Richie Willamson forget what the Federal Government, NSW Government and CSIRO have been telling them for at least the last five years about expected erosion of soft shorelines in the lower Clarence River estuary*:
Whiting Beach in the Clarence River estuary
* Thanks to Clarencegirl for reminding me that some of these reports specifically address issues in the Clarence River estuary. 

Thursday 29 March 2012

April to June 2012 may be good weather for ducks in the NSW Northern Rivers region


National Seasonal Rainfall Outlook: probabilities for April to June 2012, issued 21st March 2012 by the Australian Bureau of Meteorology.

Wetter season favoured for much of eastern Australia

The national outlook for April to June 2012 shows the following:
  large parts of eastern Australia more likely to have a wetter season
  southeast SA, western and central Victoria, and Tasmania more likely to have a drier season
This outlook is mostly due to warmer than normal waters over the Indian Ocean.
The chances of receiving above median rainfall for April to June are above 60% over south eastern Queensland and the north eastern half of NSW, rising to a greater than 75% chance over the far northeast of NSW and southeast of Queensland. Such odds mean that for every ten years with similar ocean patterns like the current, about six to eight years would be expected to be wetter than average over these areas, while about two to four years would be expected to be drier during the April to June period…….

Thursday 8 March 2012

Rain, rain, go away - Autumn begins on the NSW North Coast



Weatherzone’s calendar for March 2012 and the beginning of Autumn on the NSW North Coast.


Friday 24 February 2012

Rainy day thoughts


This year on the farm started with rain which then developed into a downpour with intermingled showers. We were certain there was more rain on the way when the geese broke into the machine shed and set up camp out of the weather. This came as a surprise for of all the animals on the property they should have enjoyed the wet.

The road into the property became impassable - which meant that we were isolated for days at a time, the electricity was not that reliable and the telephone developed the tin tank echo it always has when the ground is soaked. At least this time the telephone did not have the sinister bomb tick it usually has when the neighbours electric fence shorts out.

It was very calm watching the water rise, fall and then rise again. This time was spent in comfort and thought. Friends and relatives rang up with concerned voices which started me thinking how long a city could survive with the same services that we in the rural areas receive.

It is not that I'm upset about the services (though there could be improvement) what was a worry was the thought of how a major flood incident in a city would affect the residents. How many have an evacuation plan? Do they know the choke points on the roads, what to take with them, what is needed to survive for an extended period if you stay put? How long could it be before help would arrive?

Photograph found at Clarence River Floods

Sunday 5 February 2012

Australian east coast flooding in pictures, January-February 2012



From Queensland through to News South Wales and Victoria -  La Niña flood waters were a problem to overcome.

Snapshots of Mitchell, Wee Waa, Moree, Belligen, Canungra Creek, Charleville, Coffs Harbour, Charlton and Lawrence........................



Photographs from ABC News files, SBS News, The Australian, The Age, and Goggle Images.

Sunday 25 September 2011

Faark, she's back!


La Niña conditions have returned and will continue into 2012 according to NOAA. Will there be widespread flooding for Christmas this year? Has anyone warned Santa that he might need a flood boat for Northern NSW and Queensland deliveries?


NOAA La Nina Advisory

Monday 13 June 2011

Severe weather warning for Northern NSW 13 June 2011

 

Australian Bureau of Meteorology

Issued at 4:25 am EST on Monday 13 June 2011.

Weather Situation

A strong high pressure system west of Tasmania is moving very slowly east extending a ridge across southeastern and northwestern New South Wales and a low pressure trough is deepening off the central and northern coasts.

Heavy rain which may lead to flash flooding is forecast for the Northern Rivers, Mid North Coast and the east of the Northern Tablelands forecast districts during today.

Between 9am yesterday morning and 4am this morning, Evans Head received 160 mm of rain, Yamba 126 mm, Coffs Harbour 94 mm and Kempsey 76 mm.

The State Emergency Service advises that people should:

*       Don't drive, ride or walk through flood water.

*       Keep clear of creeks and storm drains.


For emergency help in floods and storms, ring your local SES Unit on 132 500.

The next warning will be issued by 11:00 am EST Monday.

*       Flood Watch – Tweed, Richmond, Wilsons, Brunswick, Clarence, Coffs Harbour, Bellingen, Nambucca, Macleay, Hastings, Camden Haven, Manning and Macintyre regions.

*       Flood Warning - Bellinger River,  

*       Flood Warning - Orara River,

Tuesday 24 May 2011

Monster Twister Hits Joplin, Missouri, May 2011 (video)




Hardly a building was left standing in Joplin, 240km south of Kansas City after the tornado, reported to be 1.5km wide, hit late in the afternoon.

"I would say 75 per cent of the town is virtually gone," Kathy Dennis of the American Red Cross told CNN.

By nightfall local time, the death toll had risen to 24 and was expected to climb further.

The worst-hit building was the multi-storey St John's Hospital, where TV images showed nearly every window to be blown out. There were reports that debris from the building had been found 75km away, and local television reported fires throughout the building amid fears that broken gas lines in the hospital could cause an explosion.

The tornado was part of a series of severe weather patterns that hit the midwest, including in Minneapolis where a twister was blamed for the death of a 59-year-old man. A number of others were injured after tornadoes hit parts of Minnesota.

But Joplin and its population of 174,000 took a "direct hit" according to National Weather Service meteorologist Mike Griffin. "It went right through the centre of town," he told the Springfield News-Leader.

A man living almost 75km away from the hospital said that debris from the building, including medical supplies and X-rays, was found in his yard.

Jeff Lehr, a reporter for the Joplin Globe, was upstairs in his home when the storm hit but was able to make his way to a basement closet. "There was a loud huffing noise, my windows started popping. I had to get downstairs, glass was flying. I opened a closet and pulled myself into it," he said.

"Then you could hear everything go. It tore the roof off my house, everybody's house. I came outside and there was nothing left. There were people wandering the streets, all mud-covered.

"I'm talking to them, asking if they knew where their family is. Some of them didn't know, and weren't sure where they were."

The tornado struck less than a month after another tornado outbreak left 354 dead across seven US states.

[The Australian, Tornado 1.5km wide kills 24 in US midwest, 24 May 2011]



Images found at National Geographic and The Australian

Friday 29 April 2011

Rain, rain, go away. Come again another day.

With parts of the NSW North Coast exceeding average April rainfall before the month was out and the ground starting to sour in low spots, it's certainly been a soggy Autumn for many and it doesn’t look any better for May through to the end of July.


Bureau of Meteorology mapping

“The chances of receiving above median rainfall during the May to July period are between 60 and 75% over north eastern New South Wales and the southern half of Queensland, with the strongest odds on the Queensland/New South Wales border region (see map). Such odds mean that for every ten years with similar ocean patterns to those currently observed, about six to eight May to July periods would be expected to be wetter than average over these areas, while about two to four would be drier.”

Thursday 17 February 2011

Life's little lessons learnt from Cyclone Yasi


Drought-driven dust storms, tropical cyclones, east coast lows, out-of-nowhere tornadoes, storm surges, floods, bush fire - it seems Australia has seen them all over the last twelve months, so this blog post reprinted with kind permission of Island View over at Blogging Townsville contains some hints for the disaster next time......

What I learnt from Cyclone Yasi

While Yasi's winds here were equivalent to a severe Category 2 or weak Cat. 3 cyclone there are some useful things I learnt (or were reminded of) for next time:

  1. The wind follows the land - the gullies and valleys - just as fires and flash floods do
  2. Get a manual coffee grinder
  3. Solar houses don't have to wait for the power to come on
  4. Get an alternative mobile phone charger - car, solar, wind-up, whatever
  5. A surprising number of people build stupid houses in stupid places
  6. Building on or immediately behind the foreshore dune is dumb - it's a sand dune for god's sake! It has a purpose - to move, to replenish the beach!
  7. The ONLY media that works/adds value in a crisis is local ABC radio and a battery powered receiver - it must be defended at all costs
  8. There is no such thing as too much duct tape
  9. Don't assume that because there's a cyclone, it's gonna rain - fill the bath all the way
  10. Emergency alert text messages are great - if you have a mobile
  11. Charge the camera beforehand - taking pics on the mobile chews up battery time
  12. Tell everyone beforehand to only text you and not to ring
  13. Get more ice beforehand, fill the fridge up with it (unless you have a solar house of course)
  14. The Internet is invaluable until you lose power - but only because in enables you to track the cyclone closely.
  15. News sites are hopeless and Facebook is downright dangerous in the hands of a teenager who can't discern rumour from fact or possibility from probability.
  16. Print media is useless unless they can can get an edition out before the power comes on
  17. The BOM site is fantastic but I suspect most people don't know how to read the forecast maps
  18. Most people have no idea of the country on which they live or how it works
  19. Most people (and journalists) have no appreciation of the geography of Queensland
  20. Don't wait for the last minute to buy your beer supply and when you do don't forget to get extra for all of those chats with the neighbours after
  21. Always be nice to the Ergon and CityWater guys - they are worth their weight in beer at the very least. They do an amazing job in appalling conditions
And finally, when everyone is locked down and until the storm passes, you are starkly reminded that ultimately in this world, you are on your own baby.


Magnetic Island, 9 February 2011

Tuesday 8 February 2011

Looking at the gestation window for a new cyclone?


Tropical cyclones
Tropical cyclones are low pressure systems that form over warm tropical waters and have well defined wind circulations of at least gale force strength (sustained winds of 63 km/h or greater with gusts in excess of 90 km/h).
Technically they are defined as a non-frontal low pressure system of synoptic scale developing over warm waters having organised convection and a maximum mean wind speed of 34 knots or greater extending more than half-way around near the centre and persisting for at least six hours....
The severity of a tropical cyclone is described in terms of categories ranging from 1 to 5 related to the zone of maximum winds.....
Australia continues to feel the effects of one of the strongest La Niña's on record. During La Niña events, tropical cyclone numbers are typically higher than normal during the November to April period, while summer daytime temperatures are often below average, particuarly in areas experiencing excess rainfall.....
Climate indicators of ENSO continue to indicate a strong, mature La Niña, although there are clear signs the event has passed its peak. Pacific Ocean temperatures have increased, especially below the surface, while atmospheric indicators such as the Southern Oscillation Index (SOI), trade winds and cloud patterns have eased from their peaks reached about a month ago......
These observations are consistent with long-range forecast models surveyed by the Bureau which show the Pacific gradually warming during the southern autumn. Given that March to June is the ENSO transition period, there is a spread among the model predictions for the middle of 2011. The most likely outcome is for a return to neutral conditions, but there is a chance of La Niña persisting for the rest of the year.


Australian Bureau of Meteorology sea surface temperature mapping on February 3 2011


Exceeding mean temperature probability February-April 2011

TROPICAL CYCLONE IMPACTS ALONG THE AUSTRALIAN EAST COAST FROM NOVEMBER TO APRIL 1858 TO 2000


La Niña - Detailed Australian Analysis

Saturday 29 January 2011

What have we all done to deserve this?


One might well ask; "What have we all done to deserve this?". As a Cat 3 cyclone bears down on the main urban areas of West Australia and, not one but two cyclones are predicted to be heading for northern Queensland between tomorrow and Thursday next.

What we definitely don't deserve is Opposition Leader Tony Abbott's persistent politicking over the rolling natural disaster January 2011 has become.

His offer to sit down with the Prime Minister and find an additional $1.8 billion in savings to save our country from yet another tax grab is an insult to voter intelligence when everyone knows government does not need opposing political parties' permission or endorsement to make budget cuts.

Australian Bureau of Meteorology maps on 29 January 2011: