The Australian Weather Forum

Welcome Dopplerstu.
Are you a Melbourne Local.?

Steady rain now, will this continue for the rest of the night or will I get some of the heavy stuff currently over Adelaide?

Hi thanks for the welcome, yes Kings park (western suburbs)

Ok fellow lightning nerds and night owls.

The small cell approaching the NE burbs from Whittlesea is throwing clean cgs at a rate of about one per minute.

There's a cell somewhere to the SW of Mt Macedon that's throwing big pulsey CCs at a rate of 5-10 per minute.

Both are clearly visible from here in Doncaster.

If only they were as easy to shoot as they are/were to see.

DarkEye, it's too hard to call.

Look at the obs inbetween you, your nearest radar, and Adelaide.. It's guesswork, but you'd surely know the weather patterns down there better than I.

The stuff over Warrnambool is dying, chances are whatever killed it will kill anything that comes in from the NW.

dopplerstu wrote:Hi thanks for the welcome, yes Kings park (western suburbs)

If you wish, under user control panel top left of page
then into profile, you can add your location so when your reporting ppl know where you are..

The speed of sound (thunder) is 343 metres a second (roughly). We can say the speed of light (lightning, ie the time it takes for us to see a lightning strike) is infinitely fast for the purposes of estimating the distance of a lightning strike (299,792,458 metres a second... you see it as it happens even if you were observing it from outer space).

Therefore, when you see a strike and three seconds pass until you hear thunder, that is 1km (well, 3 x 343 - 1.029km but close enough). 6 seconds, 2km, 9 seconds, 3km and on so on. If you see lightning and hear thunder in less than a second I'd wonder what exactly you're doing trying to count!

bugger the lightning is dying on the radar.... stay up or not that is the question

Huge severe complex in SA From Adel To Woomera This will tend to a large heavy rain band and move into W parts in the morning after the first band has already dumped 20-50mm for most and loads more to come.

Second storm will scrape just south of here but with that bow expect some very nasty winds to think 6 hours ago that storm was near Whyalla unreal how fast they are all moving.

Lots more rain and storms to come will be a very wet and thundery AM here i feel could be looking at another 50mm+ event total

12mm this morning
24mm from evening storm

Loads more to come from SA all building very nicely

Fly to LA at 12pm going to be an interesting flight

The stuff near Warrnambool is not dying Ryan, it's just clearing out of the region.

Dark Eye, you will probably see some clearence shortly and a little fine weather for a while. Heavy rain and storms should develop again overnight and into the morning. Looking at the radar further west, some development is occurring ahead of the major band of storms near Adelaide currently, so I expect the rain and storms to redevelop overnight for the southwest of the state. The SA BoM have also kept the STW current for SE parts even though storms are not occurring currently, as they expect development overnight.

Well. I am off to bed!! Night. I'll be listening to the rain and thunder.

weathergasm wrote:The speed of sound (thunder) is 343 metres a second (roughly). We can say the speed of light (lightning, ie the time it takes for us to see a lightning strike) is infinitely fast for the purposes of estimating the distance of a lightning strike (299,792,458 metres a second... you see it as it happens even if you were observing it from outer space).

Therefore, when you see a strike and three seconds pass until you hear thunder, that is 1km (well, 3 x 343 - 1.029km but close enough). 6 seconds, 2km, 9 seconds, 3km and on so on. If you see lightning and hear thunder in less than a second I'd wonder what exactly you're doing trying to count!

Yeah I learnt the 3 to 1 rule nightshift obs at perth ap for me, good to watch the storms etc. happening over your way ppl while doing metars

Flying.. umm.. have that on your own..
Temps gone up here,.
23.2 c
could see a couple of flashes out to the WNW

Well, i'm off. 24mm yesterday and i'm already half way to being happy with the week's total here (40mm) that i predicted last week.

I must say this is all to fasinating for me to go to bed. I know there is more tomorrow but

Just getting some rain here from the Kinglake rain clouds. .... and strong winds

bit of wind here also.
Started with a few tiny drops, has stopped.

Just went to bed and not 10 mins the front of it whacked through.... ~90mm/hr rain rate for a few minutes, wind howling and a few massive rumbles. Settled down now thankfully, all the downpipes are overflowing!

Bedtime, take 2.

I thought that line would slip south of Melbourne but as the radar returns just north of Bendigo show, I think I may be wrong.

Hamilton 80.6mm

cicadas starting up again here as if it was only just dusk, so loud they are waking everyone up at the same time...

dog is getting more and more agitated...somethings coming

That band of storms coming through Adelaide ATM is insane. I flew into Melbourne tonight from Perth, landing at about 23:30, so have seen quite a lot of flashes for the last 90min or so of the flight. We descended through part of the north-south band going through Ballarat ATM, and it got a bit bumpy I have to say

Once we were below the cloud deck it was constant flashing out to the WSW all the way into landing. Once in I could not believe how humid it was - it was like landing on the late night flight into Bali!!!

Not sure how this will all hold up by the time it reaches Melbourne but there is plenty of moisture around if nothing else.

Rog.