An email from Perth pointed out the plentiful mild weather lately. I see that Perth Airport 9021 is used in ACORN so I have had a look-see at all the raw monthly max data from CDO – (December data up to 16th so far). 
The first thing that hits me is a step-change coincident with the June 1994 install of a temperature probe (AWS). For larger version chart. Yet the BoM ACORN version for 9021 has no adjustment at 1994. The other point I would make is that UHI would have been steadily affecting this site as Perth housing & suburbia expanded producing warmer breezes. I can look at ACORN data later.
Here is a chart of raw monthly min data from CDO. Less noisy than the max. 
For larger version chart.
Here is a chart of annual mean T plus annual Range (mean T is the metric for “IPCC Global Warming/Climate Change”) 
For larger version chart.
All posts by Warwick Hughes
Last week 1,200GL NSW rivers flowed to Tasman Sea
Water NSW publish a spreadsheet of 7 days NSW river heights and flows(my extract spreadsheet).
I calc the 7 days flows to 14 Dec at ~1,200 GL or approx 2 Sydney Harbours and several rivers around Sydney were left off the Water NSW list. I am trying to get the data for November monthly outflows to the Tasman Sea.
80th Ann. Pearl Harbor attack
In 2019 I blogged – US & Japan war-gamed Pearl Harbor attack in 1930’s – and with the 80th anniversary near I had hoped to sketch over the main warnings during 1941.
The McCollum Memo October 1940 by Lieutenant Commander Arthur McCollum in the Office of Naval Intelligence which IMHO was written quickly is a fair summing of WWII at that time by a well informed officer sketching out the global security problems facing America.
This is the most comprehensive list of “all of 1941 warnings” I have found online.
Additional to the above list and while not strictly a warning but for sure a closely related event in the saga.
Two years ago I blogged “Did Admiral Kimmel exercise his fleet north of Oahu 21st to 24th Nov 1941 ?” and discovered thru Google that the answer was yes he did and was ordered back to Pearl by Washington. I will add more 1941 warnings missed from the above link as they come to mind.
For example on the day of the attack – Early am on the 7th the Destroyer Ward fired on a submarine conning tower near the entrance channel to Pearl and radioed in a report but the office brass just talked about it and asked for confirmation. Well the confirmation did arrive.
There was also the cogent warning about incoming aircraft from the radar station on northern tip of Oahu but that managed to be ignored too. What was so hard about scrambling some aircraft. Also early that morning the Japanese sub I-26 sunk the freighter SS Cynthia Olson en route from Tacoma, Washington, to Honolulu. A radio message was broadcast and picked up by the Matson Liner Lurline heading for San Fran from Honolulu – could have helped weave the tapestry of warnings but who wanted to be warned. I will add more as they come to hand.
November BoM Temperature Outlooks failures
BoM Outlook predictions for November max and min temperatures made on 28th October failed in may areas but the minimum Outlook was worst.
Max (day-time) Outlook — Max anomaly map actual result
Min (night-time) Outlook — Min anomaly map actual result
TV Adverts to beef up Cairns water supply
What sort of asylum are we living in when the Cairns Regional Council has to waste money on TV adverts wanting a larger water supply when the region has a huge annual rainfall free from the sky then rushing to the sea. Does anybody know what exactly is blocking Cairns augmenting their water supply?
The Ozone hole is failing to close
Flatlining at this point in time. Leading to diversionary articles by the “great and the good”.
Just yesterday we had a self congratulatory ramble back over past glories – The Montreal Protocol — an ozone layer success story to remember amid the gloom of COP26.
Then two months ago there was more obfuscation – Ozone recovery is offsetting Southern Hemisphere climate change trends in summer.
Last March we were thrilled by Climate explained: how particles ejected from the Sun affect Earth’s climate. Mentioning the sun is fraught for the Ozone/Climate-Emergency brigade.
But in 2016 the “certainty meter” was banging the end of the dial Hole in the ozone layer is finally ‘healing’
Making it up as they go comes to mind. Finally a look at NASA’s Ozone Watch pages.
Anti-dam greens rule is total in NSW
NSW dam projects in doubt amid cost blowouts and environmental concerns 4Nov21
I have blogged twice on this. Would not have guessed the anti-damists would be revealed so quickly and comprehensively. “NSW might bring forward Dungowan Dam” Deputy PM 17May2021
and
ScoMo $Bill on NSW dams 27Sep2020
ABC misinforms on Sydney UHI and fires
The article starts with some reasonable points about UHI in crowded new suburbs but then quoting an academic claims the BoM station sites do not reflect the UHI completely missing the fact the breezes and wind do blow and UHI affected air will move through the thermometer enclosures affecting BoM published weather observations.
Then further down quoting another academic in a para starting… [Studies following the 2019–20 bushfire season found that climate change had made fires a conservative 30 per cent more likely.] Statements are made about the 2019/20 fire season amazingly forgetting to quote the BoM’s Sep 2019 account of “Sudden Stratospheric Warming” over Antarctica and predictions for the coming 2019/2020 summer drought and fire season.
Surely Australian taxpayers deserve better than experts amnesia on this scale.
Bickley in Perth Hills wettest year since 1996
As our PM heads to Glasgow to worship at the “net zero by 2050” altar it comforts us to know that climate change and “our drying climate” is still controlling Perth region rainfall. Bickley which has one of the consistently reporting rain gauges – has just had 1,247mm rain to 21Oct and a quick eyeball at monthly numbers shows there is a fair chance the blog headline might come to pass.
ScoMo Gov running dead on BoM evidence “Black Summer nothing to do with global warming”
Can anybody cast light on why the 9 September 2019 findings published by the BoM and the ABC about the Antarctic phenomena “sudden stratospheric warming” have been effectively expunged from history. Despite the clear statements from BoM – now the narrative that the Black Summer fires and later floods were all “due to climate change” completely rules roost in public discourse.