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#1430437 - 11/08/2017 15:45 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: buster]
LightningGus Offline
Weatherzone Addict

Registered: 12/05/2012
Posts: 1090
Loc: Kingaroy QLD 434m ASL
Originally Posted By: buster
This run of unseasonably warm maximums with still reasonably cool mornings has me wondering about daily temperature range records for SEQ, well elsewhere in Australia also. I remember many years ago one day in early September, the day of the School's German Festival, where we had a light frost in the morning and then in the afternoon a howling NW wind took the max. to 28-29°. Some folk I knew from out near Pittsworth went from a minimum of 2 up to 32 on the same day. Perhaps Ken or anyone else with access to daily temp. records might be able to fill me in. Felt like Summer just now when I just walked out of work to get some lunch. Weird Ekka weather for sure.

I have often wondered that myself buster re. the daily temperature spread records. We had 5C to 32C with a thunderstorm late on the same day in September 2012, but the one thats gotta be close to the record for here was -2C to 27C in May last year, a temp range of 29C. I remember going from heavy jackets and woolen socks to a t-shirt, shorts and thongs in a matter of hours! grin

A very warm springlike 27C here today. Similar for the next few days until Tuesday when Aug 2017 should join the exclusive club of winter months with temperatures over 30 (currently only Aug '95, '06 and '09.)
_________________________
2016 Rainfall: 604mm
2017 Rainfall: 378mm ytd

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#1430438 - 11/08/2017 15:46 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Rsav Offline
Cloud Gazer

Registered: 07/12/2016
Posts: 47
I assume that in Florida, when the sea breezes from opposing directions meet, the air is forced upwards, creating a convergence zone and convection, with surface heating adding to this. I also assume that these sea breezes carry a lot of moisture with them, coming as they do off warm oceans. The result being, lots of thunderstorms?

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#1430440 - 11/08/2017 17:20 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Rsav]
Kev in Bello Offline
Occasional Visitor

Registered: 23/09/2001
Posts: 5040
Loc: Bellingen NSW 2454
Originally Posted By: Rsav
I assume that in Florida, when the sea breezes from opposing directions meet, the air is forced upwards, creating a convergence zone and convection, with surface heating adding to this. I also assume that these sea breezes carry a lot of moisture with them, coming as they do off warm oceans. The result being, lots of thunderstorms?

Had a quick look for this one and Wikipedia states that, sure enough: "Thunderstorms caused by powerful sea breeze fronts frequently occur in Florida, a peninsula surrounded on both the east and west by the Atlantic Ocean and Gulf of Mexico, respectively. During the wet season which typically lasts from June through September/October, any direction that the winds are blowing would always be off the water, thus making Florida the place most often struck by lightning in the United States, and one of the most on Earth.[4] These storms also can produce significant hail due to the tremendous updraft it causes in the atmosphere especially during times when the upper atmosphere is cooler such as during the spring or fall.

On calm summer afternoons with little prevailing wind, sea breezes from both coasts may collide in the middle, creating especially severe storms down the center of the state. These thunderstorms can drift towards either the west or east coast depending on the relative strengths of the sea breezes, and sometimes survive to move out over the water at night, creating spectacular cloud-to-cloud lightning shows for hours after sunset"

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#1430441 - 11/08/2017 17:45 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Mega Offline
Meteorological Motor Mouth

Registered: 03/02/2003
Posts: 6454
Loc: Maryborough, Wide Bay, QLD
^ Makes sense, found this image:


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#1430457 - 11/08/2017 23:00 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Seabreeze Offline
Weatherzone Moderator

Registered: 18/09/2005
Posts: 10143
Loc: South West Rocks, NSW
Originally Posted By: Warwick Eye2Sky
Heavy rain with a good crack of thunder! From -3C this morning to rain and lighting tonight. Not bad.
Reminds me of June 7th 2009 in Armidale when a storm with quite a reasonable amount of lightning and several flangs came through a bit before sunrise. There was a frost before it arrived, the minimum that night in the city was -1.3ēC (with a grass minimum of -3.7ēC).

_____

The dust storm in Armidale (Northern Tablelands) on September 23rd 2009. There was also a little brief rain come through in the early morning not long after the dust developed which left a muddy mark where the raindrops had hit on exposed objects.


Apparently the dust wasn't quite as thick at South West Rocks according to my parents compared to Armidale and other images they saw from other places like Sydney.
______

It hit 28.6ēC today at Kempsey, 27.9ēC at Port and 27.7ēC at Coffs. With the low humidity, it was quite pleasant.
_________________________
South West Rocks, NSW Mid North Coast:
September 2017 Rainfall: 2.6mm (Sep Avg. 56.6mm) // September 2017 Raindays: 1 (Sep Avg. 8.4 raindays)
Year-to-date Rainfall: 1248.2mm (Jan-Sep Avg. 1153.5mm) // Year-to-date Raindays: 106 (Jan-Sep Avg. 102.0 raindays)

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#1430460 - 12/08/2017 01:35 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6185
Loc: Wollongong, NSW
Originally Posted By: Seabreeze

The dust storm in Armidale (Northern Tablelands) on September 23rd 2009. There was also a little brief rain come through in the early morning not long after the dust developed which left a muddy mark where the raindrops had hit on exposed objects.


Same thing happened here, and there was dust all over cars since the water allowed the dust to stick.
_________________________
2016-17 season storm total for here= 15

Oct- 21st
Nov- 9th, 28th
Jan- 24th
Feb- 11th, 12th, 17th, 18th(2)
Mar- 13th, 16th, 22nd
Apr- 9th, 26th
May- 24th

The longer you wait for things, the more you appreciate them.

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#1430472 - 12/08/2017 13:27 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Chris Stumer Offline
Weatherzone Addict

Registered: 28/01/2010
Posts: 1545
Loc: Kingaroy
Didn't it turn very wet in December of 2009 after a hot August and a hot dry spring?

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#1430488 - 12/08/2017 16:42 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Rsav Offline
Cloud Gazer

Registered: 07/12/2016
Posts: 47
Thank you Kev and Mega! smile

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#1430527 - 13/08/2017 08:57 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Chris Stumer]
Colin Maitland Offline
Weatherzone Addict

Registered: 01/09/2009
Posts: 2245
Loc: North Brisbane ( Bracken Ridge...
Originally Posted By: Chris Stumer
Didn't it turn very wet in December of 2009 after a hot August and a hot dry spring?


That is correct. Just a quick over view,

Here is the State Disaster Management Report for 2009/10

http://www.disaster.qld.gov.au/Disaster-Resources/Documents/SDMG_Annual_Report_2009-2010.pdf page 6

Extensive rain fell across most of Queensland from late December 2009 to April 2010. During a10-day period over
February and early March, the Bureau of Meteorology (BoM) estimated 403 cubic kilometres, or 403,000 gigalitres, of
rain fell across the Northern Territory and Queensland. Much of Queensland received very high falls with many places
recording over 100mm in 24 hour periods.

Also approx from page 159 on wards is the later part of 2009 and 2010 season http://forum.weatherzone.com.au/ubbthreads.php/topics/92063/159
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VK4FCDM (Amateur radio call sign)

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#1430562 - 14/08/2017 05:32 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
gleno71 Offline
Weatherzone Addict

Registered: 09/11/2007
Posts: 1236
Loc: Australia
Thanks for sharing those pics Seabreeze. Certainly a event to remember

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#1430565 - 14/08/2017 07:51 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Ken Kato Offline
Weatherzone Addict

Registered: 05/03/2012
Posts: 4505
Great photos Seabreeze.

Still on track for that big cooldown from around this weekend as west to southwesterlies kick in... but not before the remarkable 32 to 34C temps that OCF's still going for away from the coastline:



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#1430596 - 14/08/2017 12:48 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
TWEEDSTORM Offline
Weather Freak

Registered: 08/01/2012
Posts: 569
Loc: Tweed Heads NSW
Nice sunny days and enjoying the warmth albeit a little bit boring for stormchasers.The first signs of a heat low developing over the kimberly which signifies the birth of the buildup.season over the northwest of the country

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#1430624 - 14/08/2017 16:18 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Ken Kato Offline
Weatherzone Addict

Registered: 05/03/2012
Posts: 4505
Oh and chance of snow still appearing on EC later on Saturday or early Sunday creeping up over the northern tablelands due to the colder airmass - EC deterministic below:



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#1430734 - 15/08/2017 11:46 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Befour Offline
Weather Freak

Registered: 30/04/2015
Posts: 153
Loc: Summer Hill (Sydney)
Let's wait and see how many pages start hyping this into a half meter dump.

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#1430749 - 15/08/2017 13:06 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Ken Kato Offline
Weatherzone Addict

Registered: 05/03/2012
Posts: 4505
Hopefully not too many - that area's shrunk a lot in the latest couple of EC runs.

Also looking like it could get pretty gusty later this week (peak around Fri/Sat) after the W to SW winds kick in.
Which also means some elevated fire dangers before the coolest air kicks in.

The colder conditions don't look like lasting too long though before daytimes start climbing again.

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#1430790 - 15/08/2017 16:17 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Wave Rider Offline
Meteorological Motor Mouth

Registered: 27/01/2014
Posts: 6185
Loc: Wollongong, NSW
Looks like the Central Tablelands of NSW will struggle to get snow in the latest runs, let alone the Northern Tablelands. As usual, looks like moisture will be an issue.
_________________________
2016-17 season storm total for here= 15

Oct- 21st
Nov- 9th, 28th
Jan- 24th
Feb- 11th, 12th, 17th, 18th(2)
Mar- 13th, 16th, 22nd
Apr- 9th, 26th
May- 24th

The longer you wait for things, the more you appreciate them.

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#1430816 - 15/08/2017 20:03 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Warwick Eye2Sky Offline
Weather Freak

Registered: 31/08/2010
Posts: 691
Loc: Warwick, QLD
Sorry for the delay Gleno and Mega. Influenza A has kept us all so busy at work.
I moved here early 2009. Yes, I do miss the PM storms over there. I do really enjoy the climate here on the Southern Downs however. So different from Florida. Plus, we do see some nice super cells at times which you rarely see in Florida. The only exception being moderate to strong El Niņo winters. I remember vividly the winter of 98 which dropped the EF 4 tornado near Orlando which killed 45. It passed over us near Tampa and produced an incredible CG Fest! I traveled to Kissimmee (near Orlando) 2 days later to observe the damage from the EF 4. Looked like something out of Oklahoma.
_________________________
Michael - your eyes to the west.

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#1430818 - 15/08/2017 20:10 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Warwick Eye2Sky Offline
Weather Freak

Registered: 31/08/2010
Posts: 691
Loc: Warwick, QLD
Nice map Mega, that is classic Florida summer pattern. With Gulf of Mexico temps reaching 32-33 C at times, sea breezes are not much relief from the heat. If you look at the map, Pinellas County on the west coast is another little peninsula with its own micro climate like I mentioned in previous emails. The eastern half of that county, right along Tampa Bay is the hot spot for thunderstorm development. Very localised storms that pop up in the same areas due to sea and bay breeze boundaries. Very interesting to watch. All summer storm development in Florida is dependant on where the axis is regarding the mid Atlantic Ridge, or Bermuda High. One little shift north or south makes a huge difference on who gets the storms,
_________________________
Michael - your eyes to the west.

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#1430820 - 15/08/2017 20:18 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Warwick Eye2Sky Offline
Weather Freak

Registered: 31/08/2010
Posts: 691
Loc: Warwick, QLD
Also forgot to mention gust front boundaries produced by other storms. That also plays a big role in the distribution of Florida summer thunderstorms. One day soon I would like to spend a summer there again and just chase summer storms throughout central Florida.
The classic summer storm pattern is sometimes disrupted late in the season by passing tropical storms and hurricanes. July is the best month actually for lightning storms in central Florida, although August is normally the wettest month of the year.
_________________________
Michael - your eyes to the west.

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#1430821 - 15/08/2017 20:21 Re: SEQLD / NENSW Day to Day Weather - 2017 [Re: Seabreeze]
Warwick Eye2Sky Offline
Weather Freak

Registered: 31/08/2010
Posts: 691
Loc: Warwick, QLD
Looks like some very cold weather again here by the end of the weekend. Could be -4 C again around here by early next week. A bit of wind too ahead of and behind the front. You can certainly tell we are approaching spring.
_________________________
Michael - your eyes to the west.

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