Day to Day Northern Territory

Greysrigging

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Jul 11, 2019
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Darwin Airport

Darwin Airport 2020-2021 Wet Oct-April
Total = 1857.8mm
Mean = 1678.4mm
Median = 1548.7mm.
As with the Northern Suburbs, started well early, but the Monsoonal stuff buggered off in Feb, so finished with a whimper. That 35mm the other day saved April somewhat.
A pass mark, 180mm above average, particularly given the last two seasons.
 

wernerk

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Jul 5, 2019
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Flinders Park
Darwin Airport

Darwin Airport 2020-2021 Wet Oct-April
Total = 1857.8mm
Mean = 1678.4mm
Median = 1548.7mm.
As with the Northern Suburbs, started well early, but the Monsoonal stuff buggered off in Feb, so finished with a whimper. That 35mm the other day saved April somewhat.
A pass mark, 180mm above average, particularly given the last two seasons.
Always good to reach close to the mean (or median, depending on which you prefer to use).
Happy to oblige with the late April rain, haha!!
 

Greysrigging

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Yawn.....
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Greysrigging

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After a few decent 'dry season' type days and nights. the heat returned a bit today.
34.6c at the Airport was a shock to the system. I was out in the rural area at Southport giving a mate a hand with his jetty repairs on the Blackmore River. Lost a fair bit of sweat today and I note that the nearby Noonamah Airstrip made it to 35.8c today, so no wonder I have a sunburnt face and feel a bit dehydrated this afternoon.
PS. remedying aformentioned dehydration with beer atm....:)
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Greysrigging

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Unbelievably there was a nice dry season downpour in Darwin City yesterday afternoon. natuarally it missed all the official BOM gauges, although some private backyarders are reporting 20 -23mm. Not a drop at the Airport or the Northern Suburbs, was just a hot sweaty 'wet season' kind of day....in June ! last two days have been 33,3c/24.8c and 32c/24.2c. Oh and a DP of 24c at one point at the Airport is not what we wanna see in the Dry Season !
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stallie

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That said I remember Territory Day in Timber Creek in 1999 was rainy.... so much so that no-one let off their fireworks. The day itself was grey and overcast before steady but light rain came in the evening - not isolated downpours.
 
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wernerk

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Yep, Timber Creek had 10.4mm that day AND a top temp of only 16.9c ! Very wintery !!
I remember camping at Lee Point Caravan Park in mid August 1996 and there was a deluge in the middle of the night resulting in an inch of water running across the ground and a very soggy mattress in the tent as the floor was no longer waterproof. A new tent was procured after I got home!
 
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Greysrigging

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I remember camping at Lee Point Caravan Park in mid August 1996 and there was a deluge in the middle of the night resulting in an inch of water running across the ground and a very soggy mattress in the tent as the floor was no longer waterproof. A new tent was procured after I got home!
I looked up my old rain charts for August 1996 ( Leanyer, not too far from Lee Point ). I recorded 9mm that day. The Hospital in Tiwi got 20.5mm, so yep, I can well imagine the campsite being flooded out....haha.
 

Greysrigging

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Typical ! 2 or 3 days of 'winter', before the weather reverts back to the 21st Century norms of 33c days in the middle of July. Since 1990, only 5 July's out of 31 have recorded a mean monthly temp below the long term average of 30.6c
1991 - 30.4c
1994 - 30.3c
2000 - 30.5c
2006 - 29.6c
2007 - 29.9c
Capture.JPG
 

Hermon

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Alice Springs hit 30.4c today. Got close to the 1996 record of 31.4c.

Incidentally, winter 2021 feels a lot like winter 1996 so far (in Vic at least). Decent ski season that one...
 
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Claude Cat

On my bike
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Jul 6, 2001
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What's the haze situation up there?
We're positioning to capture some airborne imagery with haze in Darwin, as I understand it's usually pretty common this time of year.
 

Billy Bob

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Nov 23, 2020
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Bungendore
I noticed that the Jabiru Airport webcam (not Darwin, I know) has smoke haze on the horizon this afternoon. You don't hear much about it, but smoke haze is probably more persistent in Darwin than Sydney.

 

Greysrigging

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Max temp peaked at 31.5c today. ( 12.30pm ). Some cloud has moved in as the temp is around 30c and DP of 22c, RH 65%. Bit of a shock after 5 dryish days above 33c. Today 'feels' more opressive.
My son flew down to Alice Springs this morning for a weeks work, They had extreme winter heat in the town yesterday, a max of 30,4c and a min of 18.3c. July averages are 19.9c/4.0c.
Only the 7th time since 1941 that the Airport has exceeded 30c in July. Record is 31.6c
 
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Greysrigging

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Bit of chit chat on local FB weather pages re the degree of crappiness this 'Dry'season compared to previous years.
This is my take looking at some stats.

"So, what is the difference between a 'good' dry and a 'bad' dry ?
Most of us probably use the old 'rule of thumb' number of mins below 20c. Yeah ?
Nah, I'm asleep at night so I don't think too much on the mins, its the days and months above the long term averages that puts a dampener ( no pun intended, not talking about unseasonal rain events ) on the 'dry'.
Consider this....
Airport mean max temps 1961-1990.
May 32.1c, June 30.6c, July 30.5c, August 31.3c
Airport mean max temps 1991-2020
May 32.3c, June 31.1c, July 31.1c, August 31.9c
Airport mean max temps 1941-2020
May 32.1c, June 30.7c, July 30.6c, August 31.4c
So yeah, dry season days have warmed somewhat.
Most of us can't remember what happened last year, let alone 10 years ago. So some figures back to 2010 for May-August.
2021 - 32.7, 31.8, 32.3 ( so far as of 16/7 )
2020 - 32.1, 32.4, 32.0, 32.6.
2019 - 32.3, 31.0, 31.3, 32.0.
2018 - 32.7, 31.6, 31.9, 32.0.
2017 - 32.9, 31.3, 32.6, 33.1.
2016 - 33,3, 33.2, 31.5, 32.6.
2015 - 32.6, 32.0, 31.3, 31.8.
2014 - 32.7, 31.2, 31.1, 31.9.
2013 - 32.7, 31.8, 31.5, 32.8.
2012 - 31.1, 29.7, 30.6, 31.5.
2011 - 30.8, 29.0, 31.2, 31.9.
2010 - 32.3, 31.1, 32.6, 32.8.
Airport mean max temps 2010-2021.
May 32.35c, June 31.34c, July 31.74c, August 32.18c
The figures show a clear warming trend in the these dry season months ( max temps ), especially in the last decade.
So only 4 dry season months out of 47 have recorded below av max temps since 2010, Two in May and two in June !
Another thing I looked at was July days above 33c. So yeah, July, our 'coldest' month.
1941 - 1950 = 11 July days +33c
1951 - 1960 = 7 July days +33c
1961 - 1970 = 13 July days +33c
1971 - 1980 = 24 July days +33c
1981 - 1990 = 16 July days +33c
1991 - 2000 = 17 July days +33c
2001 - 2010 = 30 July days +33c
2011 - 2021 + 54 July days +33c
1942 - 8 days ( 6 consecutive ) +33c
1975 - 9 days ( 6 consecutive ) +33c
1998 - 9 days +33c
2010 - 13 days ( 8 consecutive ) +33c
2016 - 8 days +33c
2017 - 13 days ( including 4 days above 34c ! ) +33c
2021 - 5 consecutive days +33c
Honourable mention to June and July 2020, with both months recording record max temps of 35c !
Bit of a long winded way to say it....yes, the 'Drys' are getting warmer !"
 
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Billy Bob

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Great analysis. Darwin is becoming an equatorial climate in terms of temps, without the year round rain chances that it should entail.

I think mins are important for overall comfort as well; they influence indoor temps as much if not more than max temps. Though probably less important in a tropical maritime climate like Darwin than a cool dry inland climate like Bungendore. A 15C/40C day is much more tolerable than a 25/40C day- and also more tolerable than the standard humid tropical 25/32 day in the wet.

One thing I have noticed with Darwin's dry is the increasing amount of +20C DP days. I think this is directly related to our cold fronts; weaker cold fronts mean weaker dry SE'ly surges for you up there. Without the influence from the south, more equatorial like conditions can take hold, especially since SSTs in the Timor Sea are hot year round. I am surprised the DP is still over 20C today...we had snow yesterday.
 
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Greysrigging

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Yearly rainfall, Darwin. Most people up our way quote the rainfall figures by the season, ie the 2020-2021 Wet Season and such.
I still like to see the calender year figures for comparison.
The driest year, 1946.
Capture.JPG 1946.JPG

And the wettest year 1998
Capture.JPG 1998.JPG

And a recent year without a drop of rain for 5 full calendar months ! Hard on the garden, hard on the water bill ! 2017.
Capture.JPG 2017.JPG
 
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Greysrigging

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A tough winter's day in the VRD, Gregory and north eastern Kimberley's yesterday. While its been very cold in the south eastern states, The deep north of the Top End has experienced record breaking July heat with max temps climbing into the mid and high 30c's.
Victoria River Downs maxed out at 37.7c yesterday, a full 1.2c above their previous July record. Digitised data back to 1965.
Daly Waters also notched a record max of 36.2c, 0.4c above the previous July high. Records since 1939.
Other shorter term records may have been broken at Tindal and Ngukurr today with forecasts of 36c and 37c respectively.
 

Greysrigging

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Some record and near record heat accross the Top End yesterday, including Middle Point ( Darwin's Rural Area ), Batchelor, Tindal ( Katherine ). Kalumburu over on the north Kimberley coast cracked the old 100f mark with 38.1c, just 0.2c shy of the Australian July max temp record, which they also hold.
very large diurnals as well, cool/cold night and record heat not that common in the deep North.
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Australian records for July
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Greysrigging

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Jul 11, 2019
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The record July heat continues accross the Top End.

From the BOM page.
Bureau of Meteorology
· "While below average temperatures and unsettled weather has been the theme for southern areas of Australia, record warm temperatures continue for central and northern areas.
1f321.png
Heat is rebuilding across interior WA and this will spread east during the week. This round of heat may be more intense, reaching the mid-high-30s inland. This builds during today with maximums 8-10 °C above average over broad inland areas of NT/SA/WA. Temperatures will be within 1-2 °C of July records.
This heat will largely persist over for Central Australia, shifting slightly east into western Queensland, with no large high to flush out the warm air. Record temperatures may be set on Thursday and Friday over corner country. Forecast maximums getting up to 35 °C just east of Alice Springs – remarkable for July."

Meanwhile, Alice Springs topped 30c for the second time this July....and only the 8th time the mercury has climbed to the 30c mark since records began in 1941. 30th and 31st max temps forecast 32c and 33c !
nWr4hYj.jpg

An honourable mention Jabiru.
The record breaking July heatwave continues across the Top End of the Northern Territory. Jabiru, the former service town for Ranger Uranium Mine ( within Kakadu National Park ) has a series of 37c max temps forecast to end the month. The site is running at 2.1c and 1.7c above the July mean max and min temps. Also running 0.4c above the previous July monthly record of 33.8c set in 2017. Site has data back to 1971.
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Greysrigging

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A large swathe of Northern and Central Australia have set or will set new max temp heat records for July. See list below.
Kununurra, WA ( record 35.5c ) Forecast last 3 days of July - 37c, 37c, 37c.
Wyndham, WA ( 37.2c ) - 37c, 37c, 36c.
Jabiru, NT ( 36.2c ) - 37c, 37c, 37c.
Humpty Doo, NT ( 36.1c ) - 36c, 36c, 36c.
Katherine, NT ( 35.8c ) - 36c, 36c, 36c.
V R D, NT ( 36.5c ) - 36c, 36c, 37c.
Lajamanu, NT ( 34.7c ) - 35c, 35c, 35c.
Wave Hill, NT ( 36.0c ) - 36c, 36c, 37c.
Tennant Creek, NT ( 34.7c ) - 34c, 35c, 35c.
Alice Springs, NT ( 31.6c ) - 30c, 32c, 33c.
Birdsville, QLD ( 32.9c ) - 26c, 34c, 34c.
Tiboorburra, NSW ( 29.8c ) - 19c, 27c, 30c.
Bourke, NSW ( 29.2c ) - 19c, 22c, 31c.
 
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