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Posted
13 hours ago, old man emu said:

I won't believed that it has rained until I see it in the rain guage.

OME, It's time you scraped the cobwebs out of the rain gauge.

Otherwise those rare drips won't make it to the bottom.

  • Sad 1
Posted

We had the tip of a cold front come through the State today, it was a real fizzer. The forecast was up to 6mm in Perth, but we only got a light shower, barely enough to wet the ground. The cold front dissipated rapidly into just low clouds, and only a few coastal areas got a couple of millimetres. A bit disappointing, and there's no sign of any decent cold front, for close on another fortnight.

 

https://www.cpc.ncep.noaa.gov/products/JAWF_Monitoring/Australia/GFS_forecasts.shtml

Posted

The Biggest HIGH That I've ever registered on my Barometer is over New Zealand right now. 1041 mbs. These days, forecasts 2 weeks away are stretching it. Air Mass analysis is what's needed. Lots of water can only come from tropical maritime air.  You will never get much rain from way down south and the Polar regions are as dry as deserts.. Air masses are Modified by what they Pass over.  Nev

  • Informative 1
Posted (edited)

A large, moisture-laden air mass is feeding into a trough in front of a huge high pressure system, over Western Qld and Northern NSW. As you say, any decent amount of rain originates from the Northern maritime region latitudes.

This tropical air mass is feeding in from the Northern section of the Indian Ocean, and it's bound to carry some reasonable amount of rain to SW Qld and Northern NSW. 

 

When the Bureau say there's a "100% certainty" of rain, they're not often wrong. Only the total amount of rainfall is in doubt, and that can vary widely over a relatively small area. 

I thought the weak cold front that came through W.A. on Thursday morning had nothing behind it. But the tip of another cold front followed it, and we got 8mm of rain in the City on Thursday night. However, the rain didn't penetrate very far inland.

 

http://satview.bom.gov.au/

 

Edited by onetrack

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