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Post by greysrigging on Jan 16, 2022 0:19:05 GMT -5
Liking the look of this coming on to us this afternoon.  |
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Post by greysrigging on Jan 17, 2022 17:42:53 GMT -5
From a local weather nerd here in Darwin ( Nikko )
Educational Post
"Ever wondered why people in the tropics will hardly ever mention Humidity but rather Dew Point. What's the difference and which one is more accurate in measuring how uncomfortable it will feel. First I'll give the definitions of each.
Relative Humidity is the percentage of water vapour in the air.
Dew point is the temperature at which the air is saturated (reach 100% relative humidity "RH").
So why is dew point used more often in the tropics. Simply because giving the RH percentage is misleading. For example some days we will see 60% RH, now that doesn't sound all that high, however when we look at the dew point it may be at 22 or 23°C. However a 60% RH in say Sydney or Melbourne would mean the dew point would be around 15°C. So looking at the RH percentage doesn't really tell you if it's "humid" or not. As 100% RH at an air temp of 13°C is drier then 100% RH at an air Temp of 25°C.
Generally an individual's threshold to feeling uncomfortable is determined by where they live...for example someone living in Darwin will have a higher threshold then someone living in Sydney. As a general rule people living in Dry climates will start feeling uncomfortable at a Dew point of around 16°C, where as someone coming from a climate like Sydney's would feel uncomfortable at dew points at 20°C and above. Whereas, someone from Darwin would generally start feeling uncomfortable at Dew points over 24°C.
In a nut shell, the higher the dew point, the more moisture in the air and more uncomfortable it will start to feel depending on your home climate.
A misconception is at 100% RH it will rain. This isn't always the case, 100% RH just means the air at that particular air temperature can hold no more water so is saturated. If the air temp rises then the air will be able to hold further moisture.
It's possible for the air temperature to drop below the dew point, but what will happen is the air cannot hold the water and the result is dew. This usually happens closer to ground level. On a dewy night if you had a gauge at ground level, it should measure an air temp below the Dew Point. The problem is most Home stations do not give us a RH humidity reading below 99% so are not programmed to show a Dew Point below air temperature.
I hope this helps understand dew point and Humidity and which is more accurate in determine how uncomfortable it feels."
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Post by greysrigging on Jan 18, 2022 0:24:50 GMT -5
Some thunder out to our East...  |
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Post by greysrigging on Jan 18, 2022 4:55:50 GMT -5
Well, that last storm coming in from the east was a complete dud event, dying in the arse as the Northern Suburbs dome/force field was activated by the afternoon sea breeze. Now this is looking much better !  |
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Post by greysrigging on Jan 18, 2022 20:54:55 GMT -5
A passing shower over the City and Airport. My location is about the 3rd a in the word 'Casuarina' in the image, so no rain for me, just a dull overcast that will likely burn off in the afternoon. Note the 34c forecast....hard to see that being reached with 25.8c atm.   And some trying DP's before the rain shower....  |
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Post by greysrigging on Jan 19, 2022 2:37:05 GMT -5
Bit more action tonight with these Gulf Lines screaming in from the East. Typical 'monsoonal break' type pattern.   |
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Post by greysrigging on Jan 19, 2022 3:52:02 GMT -5
Hmmmm, its turned into a Palmerston 'special'. Might clip the Airport, but naught for Leanyer  View from my son's house in Palmerston  |
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Post by greysrigging on Jan 19, 2022 4:48:30 GMT -5
And starting to rain here at home...I'm on the edge of it near the coast in this image ( to the north ) so I don't expect much.  |
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Post by greysrigging on Jan 19, 2022 21:42:00 GMT -5
Jeezus H Christ ! This is a fucken ordinary sat image of the Top End at noon in January ! !  |
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Post by greysrigging on Jan 20, 2022 0:16:36 GMT -5
From one of our local FB weather gurus "Good afternoon trendsetters. Where the hell did the morning go? I seriously thought it was 11 or thereabouts but I guess that’s what happens when I lead such a busy lifestyle 😇 It’s muggy in the Top End. In fact it’s muggy over about a third of the continent at the moment and that looks set to continue. The Top End looks set to start receiving a better rain pattern in coming days. The monsoon trough to our north is strengthening and will slip down onto the north coast in coming days. Models still flipping coins on where the heaviest rain will fall but a possible low forming tends to concentrate the heaviest rainfall in its vicinity. At this stage no two models tend to agree where one will form, IF one will form but GFS looks keen on some fairly concentrated rainfall near the Darwin region so maybe their coin landed on its side Anyhow it’s cloudy but reasonably fine in the Darwin region atm with a good band of rain about the Tiwi Islands that’s pushing SW. That rain won’t affect Darwin but expect a few showers and storms this afternoon as conditions become that little bit more unstable. My gardening is done so I reckon Huey can start delivering the goods any the likes Have a great arvo troops and we will chat later."  Oh and Jaimie, that rain from the Tiwi Islands has pushed south over Darwin and is raining here at home as I type....   Oh, and 26mm rain this arvo....yep, we'll take it ! |
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Post by greysrigging on Jan 20, 2022 2:07:02 GMT -5
SFA on the noon radar....4 and a half hours and 26mm later its lookin' the goods !  |
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Post by greysrigging on Jan 21, 2022 3:12:07 GMT -5
Even though we are in a 'monsoonal break' period, we're still getting showeres and storms every day, a typical January weather pattern.   |
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Post by greysrigging on Jan 21, 2022 5:21:41 GMT -5
Sunset looking towards the City from the Palmerston suburb of Zuccoli.  |
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Post by greysrigging on Jan 22, 2022 1:41:43 GMT -5
Hmmmm, whats on the cards for tonight I wonder ?  |
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Post by greysrigging on Jan 22, 2022 15:24:28 GMT -5
A nice line of showers rolling across the Northern Suburbs of Darwin this morning. The coastal line pictured is about where the monsoon trough is atm.  |
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Post by greysrigging on Jan 22, 2022 16:50:19 GMT -5
A nice quickfire 50mm of rain in an hour and a half this morning 5.30am-7.00am. Great start to the day and hopefully a monsoonal week !  |
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Post by greysrigging on Jan 23, 2022 0:18:15 GMT -5
Another short monsoonal shower here at home after the temp peaked at 31.6c just after 1.00pm. Some woefull DP'S in the district too.   Pretty happy with the jungle vibe in the front yard garden too, the wet season hides a multitude of gardening sins.  |
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Post by jetshnl on Jan 23, 2022 0:24:47 GMT -5
A tire snake, haha nice.
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Post by greysrigging on Jan 23, 2022 1:08:51 GMT -5
motion sensored too....he hisses at you as you walk past....was gunna put a rattlesnake rattle on the speaker but the hiss really puts the wind up pedestrians walking by....all the locals know it now, so not as effective anymore haha |
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Post by greysrigging on Jan 23, 2022 20:03:56 GMT -5
Looking dark and gloomy out to my north towards Lee Point. Traditionally, during the Monsoon, my heaviest rainfall comes from this direction. Been a bit of a dud this last 4 or 5 days really, with 111.1mm of rain. A decent monsoonal surge should be double or triple this tally. Looks like the main action is over on the west coast out Port Keats way.  Ahh, here's why its so dark to my north....I'm on the southern edge of this,  |
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