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#1465225 - 08/06/2018 09:31 Northern Hemisphere Summer 2018
kizz Offline
Weatherzone Addict

Registered: 11/02/2002
Posts: 1998
Loc: Beacon Hill, Sydney 152m asl
Just been on my interwebs tour of the hot spots and was not disappoint!

https://www.ogimet.com/cgi-bin/gsynres?i...&day=07&hora=18.

That is Sibi in Pakistan for those reading.
Highlights are a couple of observations of Temp/Dewpoint.

47.2/30.9 @ 1700 Wednesday
45.6/32.1 @ 1700 yesterday

Bloody gorgeous. grin

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#1465291 - 09/06/2018 10:10 Re: Northern Hemisphere Summer 2018 [Re: kizz]
kizz Offline
Weatherzone Addict

Registered: 11/02/2002
Posts: 1998
Loc: Beacon Hill, Sydney 152m asl
Friday was more impressive -

47.8/33.5

Pretty sure that challenges Dhahran's 42/35 on some of those heat index metrics.

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#1466196 - 21/06/2018 13:39 Re: Northern Hemisphere Summer 2018 [Re: kizz]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
Some serious heat building in the middle east next week from Wednesday-Thursday with places like Abadan and Elhaei in Iran forecast to be blasted with a heat core of between 36-37C at 850hpa which will translate to between 53-54C at sea level which both sites are, could be some all-time records broken I'm thinking...

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#1466580 - 27/06/2018 21:06 Re: Northern Hemisphere Summer 2018 [Re: kizz]
KevD Offline
Occasional Visitor

Registered: 23/09/2001
Posts: 5194
Loc: Bellingen NSW 2454
Bushfire raging across the Moors in the UK after a very dry start to summer: https://www.bbc.com/news/uk-england-manchester-44626899

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#1466606 - 28/06/2018 10:27 Re: Northern Hemisphere Summer 2018 [Re: pete28]
kizz Offline
Weatherzone Addict

Registered: 11/02/2002
Posts: 1998
Loc: Beacon Hill, Sydney 152m asl
Originally Posted By: pete28
Some serious heat building in the middle east next week from Wednesday-Thursday with places like Abadan and Elhaei in Iran forecast to be blasted with a heat core of between 36-37C at 850hpa which will translate to between 53-54C at sea level which both sites are, could be some all-time records broken I'm thinking...

Seems to be delivering. Record minimum temperature of 42.6 just set in Oman.
https://www.wunderground.com/cat6/Minimu...ew-World-Record

Normally I wouldn't bother with this news site but it has a nice list at the bottom of the article https://www.msn.com/en-au/news/world/a-c...ocid=spartanntp.

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#1466906 - 05/07/2018 07:53 Re: Northern Hemisphere Summer 2018 [Re: kizz]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
Some very impressive heat records have been set around the northern hemisphere the last 12 months:

Denver tied its all-time high-temperature record of 105 degrees (40.5 Celsius) on June 28.

Burlington, Vt., set its all-time warmest low temperature ever recorded of 80 degrees (26.6 Celsius) on July 2.

Montreal recorded its highest temperature in recorded history, dating back 147 years, of 97.9 degrees (36.6 Celsius) on July 2. The city also posted its most extreme midnight combination of heat and humidity.

Ottawa posted its most extreme combination of heat and humidity on July 1.

Excessive heat torched the British Isles late last week. The stifling heat caused roads and roofs to buckle, the Weather Channel reported, and resulted in multiple record highs:

Scotland provisionally set its hottest temperature on record.

The U.K. Met Office reported Motherwell, about 12 miles southeast of Glasgow, hit 91.8 degrees (33.2 Celsius) on June 28, passing the previous record of (32.9 Celsius) set in August 2003 at Greycrook. Additionally, Glasgow had its hottest day on record, hitting 89.4 degrees (31.9 Celsius).
In Ireland, on June 28:

Belfast hit 85.1 degrees (29.5 Celsius), its record.

Shannon hit 89.6 degrees (32 Celsius), its record.

In Northern Ireland, Castlederg hit 86.2 degrees (30.1 Celsius) on June 29, its record.

A large dome of high pressure, or heat dome, has persistently sat on top of Eurasia over the past week, resulting in some extraordinarily hot weather:

Yerevan, Armenia: On July 2, the capital city soared to 107.6 degrees (42 Celsius), a record high for July and tying its record for any month.

Several locations in southern Russia topped or matched their warmest June temperatures on record on the 28th.
a close up of a map© Provided by WP Company LLC d/b/a The Washington Post

As we reported, Quriyat, Oman, posted the world’s hottest low temperature ever recorded on June 28: 109 degrees (42.6 Celsius).

These various records add to a growing list of heat milestones set over the past 15 months that are part and parcel of a planet that is trending hotter as greenhouse gas concentrations increase because of human activity:

In April, Pakistan posted the hottest temperature ever observed on Earth during the month of 122.4 degrees (50.2 Celsius).

Dallas had never hit 90 degrees in November before, but it did so three times in four days in 2017.

In late October 2017, temperatures soared to 108 degrees in Southern California, the hottest weather on record so late in the season in the entire United States.
On Sept. 1, 2017, San Francisco hit 106 degrees, smashing its all-time hottest temperature.

In late July 2017, Shanghai registered its highest temperature in recorded history, 105.6 degrees (40.9 Celsius).

In mid-July, Spain posted its highest temperature recorded when Cordoba Airport (in the south) hit 116.4 degrees (46.9 Celsius).

In July 2017, Death Valley, Calif., endured the hottest month recorded on Earth.

In late June 2017, Ahvaz, Iran, soared to 128.7 degrees Fahrenheit (53.7 Celsius) — that country’s all-time hottest temperature.

In late May 2017, the western town of Turbat in Pakistan hit 128.3 degrees (53.5 Celsius), tying the all-time highest temperature in that country and the world-record temperature for May, according to Masters.

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#1467826 - 25/07/2018 08:48 Re: Northern Hemisphere Summer 2018 [Re: pete28]
Wet Snow Offline
Meteorological Motor Mouth

Registered: 17/06/2002
Posts: 5993
Loc: Mena, Polk County, Arkansas; e...
Hello Folks:

Well, Summer is in full-swing here in the US; I just saw where the high temperature for Thursday is forecasted to be 124F/51.1C in Death Valley, California; as the warmest air of the season settles in on that area.
For Tuesday (today) highs were expected to be 113F/45.0C in Phoenix, Arizona & 111F/43.8C in Las Vegas, Nevada.
Phoenix hit 115F/46.1C on Monday, which was a Record High Maximum for the date.
155 people died in the Phoenix-area last year from heat-related illnesses, such as heat stroke.

Kind Wishes & Take Care~~~Wet Snow

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#1467830 - 25/07/2018 10:12 Re: Northern Hemisphere Summer 2018 [Re: pete28]
ozthunder Offline
Weatherzone Addict

Registered: 23/09/2001
Posts: 3159
Loc: Mt Warrigal, NSW, Australia
Originally Posted By: pete28
Some very impressive heat records have been set around the northern hemisphere the last 12 months:



It has not stopped either.

A town in Finland at 70 degrees north recorded 30C. 70' is 4 degress inside the Arctice Circle.

London's tremperatures continue well above normal, in fact not far out of line with averages close to what you would expect in coastal parts of a summer in the Illawarra.

Greece has major forest fires. It is fire prone, and I am sure its happened before. I also suggest that they probably do not have the infrastructure like Australia's organised bushfire rural fire services.



Edited by ozthunder (25/07/2018 10:13)
_________________________
Michael Thompson
http://ozthunder.com

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#1467878 - 27/07/2018 04:39 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
I'm currently experiencing what has been an exceptionally prolonged heatwave and dry spell in Scandinavia. Many locations are going to come in 5-6 degrees above average for the month; to give one example, Oslo's mean maximum for July is going to come in close to 29, comparable with an average January in Adelaide. (London's probably going to be in the mid-28s).

Although they haven't caused the loss of life or property that they have in Greece, Sweden (and to a lesser extent Norway) have had extensive forest fires, with the largest one in Sweden up over 15,000 hectares last time I looked. (I'm certainly not used to having to look up the bushfire alerts page in Sweden to see if the road I'm planning to use is going to be open...).

It's worth noting that buildings here are built to keep the heat in, not out; the place I'm staying has been uncomfortably hot despite the fact that I'm far enough north to have missed the most intense part of the heatwave (around 26-28 most days, 15-18 overnight). The 33-34 that Oslo and Stockholm had today would certainly have been enough to have some significant health impacts.

In the UK, Heathrow Airport has had only 0.4mm since the start of June (and some sites north of London have had none at all), although some thundery rain is forecast for the weekend.

A Dutch site reached 38.2 today, 0.4 short of the national record.

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#1467882 - 27/07/2018 08:56 Re: Northern Hemisphere Summer 2018 [Re: kizz]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
Death Valley predicted to get to 128F (53C) today, in with a real shot of beating the world record of 129.2F!

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#1467913 - 28/07/2018 04:57 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
Didn't end up happening - topped out at 'only' 127/52.8.

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#1468395 - 06/08/2018 14:44 Re: Northern Hemisphere Summer 2018 [Re: kizz]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
A potentially record breaking heatwave has been consistently forecast by all models for parts of Southern Canada and northern US around the Montana/Alberta region with places like Calgary forecast to hit 850hpa temps of 34C this Saturday! Low lying places in southern Alberta could really be in with a shot of the Canadian record of 45C set back in 1937...

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#1468431 - 07/08/2018 05:43 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
...if any such places actually existed - most of southern Alberta is over 600m. Better chances in Saskatchewan, but the forecasts I've seen suggest that this event will fall a bit short of record levels (except for date records).

Model forecasts for the 850 hPa level can go a bit haywire over regions with large areas of terrain above the 850 hPa level, as a lot of the Rockies region is.


Edited by Blair Trewin (07/08/2018 05:44)

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#1468438 - 07/08/2018 08:36 Re: Northern Hemisphere Summer 2018 [Re: Blair Trewin]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
Originally Posted By: Blair Trewin
...if any such places actually existed - most of southern Alberta is over 600m. Better chances in Saskatchewan, but the forecasts I've seen suggest that this event will fall a bit short of record levels (except for date records).

Model forecasts for the 850 hPa level can go a bit haywire over regions with large areas of terrain above the 850 hPa level, as a lot of the Rockies region is.


Yes the towns with the lowest elevations around that area sit around 600-700m (including Yellowgrass in southern Sasketchewan which currently holds the Canadian record of 45.0C) so you would need 850hpa temps of around 34-35C for the record to be under threat. I'm thinking it might be 1-2C short looking at the current EC and GFS forecasts for Saturday...

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#1468531 - 09/08/2018 00:52 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
37 is forecast for Calgary on Friday, which would be a record for there if it happens (current record is 36.1). Highest forecast I found was 40 for Medicine Hat and 39 for a couple of Saskatchewan sites.

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#1468648 - 11/08/2018 09:11 Re: Northern Hemisphere Summer 2018 [Re: kizz]
pete28 Offline
Weatherzone Addict

Registered: 08/01/2007
Posts: 1129
Loc: Christchurch, New Zealand
Calgary just recorded its all time hottest temp - 36.3C

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#1468660 - 11/08/2018 16:31 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
Ended up at 36.5. Highest I saw anywhere was 40.8, so it looks like the Canadian record is safe.

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#1468695 - 12/08/2018 17:44 Re: Northern Hemisphere Summer 2018 [Re: kizz]
Blair Trewin Offline
Weatherzone Addict

Registered: 13/07/2001
Posts: 3810
Loc: Melbourne, Australia
Focus of the Canadian heatwave today moved into Saskatchewan, with records including 42.3 at Moose Jaw (which seems to be the highest, at least of internationally reporting stations) and 41.3 at Regina.

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