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Tor Bejnar

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Re: Heatwaves
« Reply #450 on: June 25, 2020, 04:37:07 AM »
I regularly experience a heat wave here in north Florida, then discover my wife turned off the A/C (hours earlier).  When it reaches about 80F (that's what the thermostat says) (OK, 26.7C) I start feeling hot so I turn on the ceiling fan in the office (which is now my state job office).  Then she gets too hot so the A/C goes back on.  It's nice to have options!
Arctic ice is healthy for children and other living things.

interstitial

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Re: Heatwaves
« Reply #451 on: June 25, 2020, 05:54:19 AM »
Cooling the house when its hot outside takes more energy then maintaining a cooler temperature. Hopefully you can find a temperature you can both agree on.

oren

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Re: Heatwaves
« Reply #452 on: June 25, 2020, 06:50:04 AM »
What site provides this particular graphic? I like it.
Never mind, found it on one of my favorite sites.
https://www.ogimet.com/cgi-bin/ogimet_nav?lang=en

vox_mundi

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Re: Heatwaves
« Reply #453 on: July 08, 2020, 12:16:04 AM »
Heat Will Stay Stuck On Extra High for July in Most of US
https://phys.org/news/2020-07-stuck-extra-high-july.html

... The National Weather Service warned of excessive heat on Tuesday for 18 million people, but that's nothing compared to what's coming up.

At the end of this week, much of the nation will likely be passing or flirting with temperatures in the 90s. And it will likely feel even hotter in the South.

Charleston, South Carolina, likely will feel 105 on Friday and then 108 on Saturday. Little Rock is forecast to feel like 107 and 109 on Friday and Saturday. Houston should feel like 109 Friday through Sunday. Phoenix is forecast to feel like 108 on Friday and 110 on Saturday and Sunday.

Then it goes up a notch more.

Next week, while close to two-thirds of the country will be warmer than normal, about 40% of the Lower 48 has a moderate risk of extreme and dangerous heat, said Climate Prediction Center meteorologist Matthew Rosencrans.

Next week, Wisconsin could be battling it out with the Southeast for the nation's hottest feels-like temperature—which factors in humidity—with heat indices pushing past 100, Rosencrans said. And the worst prolonged heat looks to be around western Nebraska, Oklahoma and the Texas panhandle, with temperatures approaching 110, but without the sticky humidity.

... In Miami, which has experienced its hottest stretch on record, an unusually hot Atlantic Ocean is adding to the problem, not allowing it to cool below 80 at night, said Ryan Maue, a private meteorologist for BAM forecasts.

Masters said there's "very toasty water pretty much everywhere," except near Greenland.

So what about relief? When do long-term forecast computer models show below-normal temperatures for significant parts of the country?

Masters scrolled through the simulations. Not the rest of July. Not August. Not September. Not October. Not November.



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Sigmetnow

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Re: Heatwaves
« Reply #454 on: July 10, 2020, 03:30:15 PM »
U.S.
Weekend weather: A rare heat wave event is forecast this weekend, the National Weather Service says
Quote
Parts of the southwestern United States are under an excessive heat warning going into this weekend. Temperatures are forecast to reach as high as 120 degrees Fahrenheit [49°C] in some areas, and officials are urging people to take precautions as heat this high can turn deadly.
...
The National Weather Service uses different criteria for heat advisories in different parts of the country. An excessive heat warning indicates unusually high temperatures that could pose considerable health risks.

In the southwest, "we use what we call a heat risk," said Marvin Percha, National Weather Service meteorologist. This is different from other areas of the country where heat indexes take a bigger importance in heat warnings.

"We look at how rare the event is and compare what's normal," Percha said. "Considering the temperatures we have forecast now, we're looking at a pretty rare event."


Heat in Phoenix this weekend could break daily records. Phoenix's expected high of 117 on Sunday would beat the daily record for July 12 of 115, set in 2009. Heat in California and Nevada will come close to records, but not quite meet them.

High heat is seasonally appropriate for the region, just usually not so high for so long.

Friday marks the 107-year anniversary of the hottest day ever recorded on earth, when Death Valley hit 134 degrees Fahrenheit, said CNN meteorologist Pedram Javaheri. ...
https://www.cnn.com/2020/07/10/weather/southwest-record-high-temps-arizona-california-forecast/index.html
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Sigmetnow

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Re: Heatwaves
« Reply #455 on: July 11, 2020, 10:09:29 PM »
Oklahoma.  Central U.S.
Quote
SPIA® Index (@SPIAindex) 7/11/20, 3:39 PM
Holy Moley folks. Be very, very careful with this heat today. Dangerous conditions, both with standard Heat Index Temps, and with Wet Bulb Globe Temps. Graphics per @okmesonet
https://twitter.com/spiaindex/status/1282036728690335744
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Sigmetnow

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Re: Heatwaves
« Reply #456 on: July 19, 2020, 01:46:44 AM »
Quote
Greg Carbin (@GCarbin) 7/18/20, 6:00 PM
Following on the earlier post, this looks at the total US population to experience at least 3 hours with a Heat Index >= 100F [37.8°C] today through early Sunday. I was surprised to see at least 24% of US pop will meet this criteria! #PlayingWithData #heatwave
https://twitter.com/gcarbin/status/1284609045312286721 
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grixm

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Re: Heatwaves
« Reply #457 on: July 27, 2020, 07:03:28 PM »
Extremely hot weather is forecast in the middle east over the next few days. Over 53 C several places in Iraq and near Kuwait and Iran.

For reference the all-time record for Iraq is 53.8 C. Iran 54 C and Kuwait 53.9 C.

glennbuck

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Re: Heatwaves
« Reply #458 on: July 30, 2020, 01:08:26 PM »
Tuesday's preliminary high of 125.2 degrees (51.8 Celsius) in Baghdad shatters the Iraqi capital's previous record of 123.8 degrees set on July 30, 2015, for any day of the year.

https://www.nationthailand.com/edandtech/30392138

vox_mundi

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Re: Heatwaves
« Reply #459 on: July 31, 2020, 09:53:10 PM »
Spain Sets Temperature Records, UK Sees Hottest Day of 2020
https://phys.org/news/2020-07-spain-temperature-uk-hottest-day.html

San Sebastian on Spain's northern coast witnessed 42 degrees Celsius (107 degrees Fahrenheit) on Thursday—the hottest temperature there since records began in 1955, the national weather agency said.

The city of Palma, on Spain's Mediterranean island of Mallorca, set a local record of 40.6 degrees Celsius (105 degrees Fahrenheit) on Tuesday.

... To the north, U.K. residents sought shade as temperatures rose above 37 degrees Celsius. National weather agency the Met Office said a reading of 37.8 degrees Celsius—100 degrees Fahrenheit—was recorded at Heathrow Airport west of London. That made Friday the hottest day of 2020 and the third-hottest on record.

From Britain to Italy, temperatures around 40 degrees Celsius (104 Fahrenheit) made face masks almost unbearable for many, as more cities begin requiring them outdoors to prevent surges in COVID-19 cases.

Austria and Bulgaria also reported their hottest day yet this year, with Vienna topping 37 degrees before a summer storm brought some relief.

France swelters under heatwave, putting firefighters on alert
https://phys.org/news/2020-07-france-swelters-heatwave-firefighters.html

Around one-third of the country's 101 departments were on high alert, with Paris forecast to reach 40 degrees Celsius (104 Fahrenheit) in the shade after several cities hit record highs Thursday.

Authorities in the capital imposed driving restrictions to limit ozone pollution as tens of thousands of Parisiens prepared to flee to cooler climes, according to the nation's traffic surveillance agency.

The Meteo France weather agency said that storms could bring relief late Friday in central France. Night temperatures elsewhere are likely to stay high, falling to just 25 Celsius (77 Fahrenheit) in cities like Lyon or Grenoble.

Last year was France's hottest on record, and Meteo France has warned that global warming could double the number of heatwaves by 2050.
“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.” ― Leonardo da Vinci

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late

ArcticMelt2

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Re: Heatwaves
« Reply #460 on: July 31, 2020, 10:20:09 PM »
https://twitter.com/Ketil_Isaksen/status/1289234856967204864

Quote
The 2020 high #Arctic #Svalbard five days #heatwave in a long-term (1899 - present) context...


Niall Dollard

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Re: Heatwaves
« Reply #461 on: August 02, 2020, 02:29:54 PM »
Start of a new month and still record temperatures in northern Russia.

25.0 C max at Cape Sterlegova on the edge of the Kara Sea at 75.41 North.

This ties the August heat record at the station, set on 3rd August 1962.

vox_mundi

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Re: Heatwaves
« Reply #462 on: August 13, 2020, 06:29:52 PM »
Remember the Heat In Baghdad? It’s Even Hotter.
https://www.washingtonpost.com/world/2020/08/12/baghdad-iraq-heat-climate-change

“Iraq isn’t just hot. It’s punishingly hot. Record-breakingly hot,” so writes WaPo’s Louisa Loveluck and Chris Mooney in this “troubling snapshot of the future” detailing how climate change is turning the frying pan into a fire. “Baghdad hit 125.2 degrees on July 28, blowing past the previous record of 123.8 degrees — which was set here five years ago — and topping 120 degrees for four days in a row.”

On Tuesday, the temperature reached 51.8C (125°F) at Baghdad in Iraq, setting a new record for the city. There were also reports of higher temperatures in other parts of the Middle East during the first half of this week. ... According to the World Meteorological Organisation, the highest temperature on record for the Asia region was 53.9C (129°F) at Mitribah, Kuwait on July 21, 2016.

... What does 125 degrees feel like? “The suitcase crackled as it was unzipped. It turned out that the synthetic fibers of a headscarf had melted crispy and were now stuck to the top of the case. A cold bottle of water was suddenly warm to the lips. At our office, the door handle was so hot it left blisters at the touch.” If the world doesn’t change its climate-changing habits, by 2050 Phoenix, Ariz., could be as hot as Baghdad, according to one study. (Last month, NBC News reported the “feels like” temp reached 159 degrees.)

What is life like? Street vendors can’t sell their goods. The power grid is straining. Farmers are losing crops. Most citizens can’t afford a generator to keep cool. And already-deadly protests are getting worse. “The heat is ruining livelihoods, and power cuts have been compounding a sense of misery so deep that protesters are streaming into the streets to demand better services, even risking the threat of live ammunition from ill-disciplined security forces.”

“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.” ― Leonardo da Vinci

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late

vox_mundi

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Re: Heatwaves
« Reply #463 on: Today at 12:20:26 PM »
Sweltering Heat is Shattering Records, Triggering Power Outages Across California
https://www.nbcnews.com/news/amp/ncna1236775



An intense multi-day heatwave kicked into high gear Friday, triggering power outages throughout California as the state's power grid became overwhelmed by energy demands.

Rolling blackouts could affect up to 250,000 homes and businesses in the state. Such a power cut has not been implemented since 2001, when there was a massive electric crisis 

Across the country, some 150 million people are set to experience temperatures hotter than 90 degrees over the next week, and 50 million of those forecast to experience temperatures over 100 degrees.

For the Plains, high temperatures were forecast to be 100 to 107 degrees, and heat index values 105-115 degrees. This heat is forecast to last through Sunday with cooler temperatures expected next week.

For the West, an excessive heat warning is in effect until Wednesday for parts of Arizona, California and Nevada, with high temperatures expected to reach 110-125 degrees.


Needles, California

"The longevity of the heat is more concerning than the record-breaking temperatures," said National Weather Service meteorologist Trevor Boucher.

The monthly heat records are especially notable. Death Valley, California, is forecast to get above 125 degrees Sunday through Tuesday, and if it does, it will be the hottest temperatures on record so late in the season.

If Phoenix reaches 117 that would match the all-time hottest temperature recorded during the month of August.

https://twitter.com/i/status/1294275589487067139

... “With COVID-19 and other crises layered on top of each other, an additional extreme weather crisis basically just compounds the stress that people are already feeling,” Gershunov said.

------------------------------------


California Heat Wave May Rival Deadly July 2006 Event, Forecasters Warn
https://www.latimes.com/california/story/2020-08-14/california-heat-wave-records?_amp=true

Valleys in the Los Angeles region can expect highs of 100 to 108 degrees, with lows of 72 to 82. Elevations below 5,000 feet will see highs of 98 to 105 and lows of 65 to 75. High temperatures will be 102 to 112 in the Antelope Valley, with lows from 70 to 80. Coastal areas can look for highs of 82 to 92 and lows of 65 to 70.

The excessive heat is the result of a large, strong high-pressure system centered over Arizona, which is keeping the Southwestern U.S. hot almost everywhere except within a few miles of the coast.

High pressure over southwestern California on Tuesday will reach a strength that occurs only about once every 10 years, said Eric Boldt, a meteorologist with the National Weather Service in Oxnard. This dome of high-pressure air blocks storm systems and creates the building heat over the Southwest.

It was during the deadly 2006 heat wave that Los Angeles County recorded its all-time highest temperature: 119 degrees in Woodland Hills on July 22.

The Times reported that coroners in Los Angeles, San Bernardino and Kern counties connected about 130 deaths to the heat, with diagnoses including hyperthermia and heatstroke. But state researchers later estimated that the toll in those counties was more likely in the range of 350 to 450
“There are three classes of people: those who see. Those who see when they are shown. Those who do not see.” ― Leonardo da Vinci

Insensible before the wave so soon released by callous fate. Affected most, they understand the least, and understanding, when it comes, invariably arrives too late

Bruce Steele

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Re: Heatwaves
« Reply #464 on: Today at 05:02:36 PM »
Voxmundi, It isn’t like high pressure heat here in So Cal. We have high clouds and it sprinkled a little this morning, nothing measurable really, and we had a few sprinkles yesterday also. There was even a little thunder and a small fire in Oceano from a lightning strike. Humidity 55-65 and 100 degrees two days running.
 The pigs are especially sensitive to heat so I still spend several hours out in the heat checking on them keeping the wallows full and watching for stress.  It’s squash season so I loaded and hauled 1500 lbs. yesterday.  At least it cools down nicely every night. The swallows have fledged their young and flown back south already so no colony crashes this year. The field corn is drying in the sun, the wheat is about half done harvesting, and the black eyed beans are finishing up and starting to dry. The summer garden is done and when it cools down it is time to plant a winter garden.
 The powerwalls can’t keep up with my A/C so this is the only time of year that I pull off the grid. Still maintain 14.7kw in storage in case of a power failure. The solar carries most all the daytime load but doesn’t make enough to charge the batteries and get through the nighttime hours. Only like this a few days per year where I am using grid power.
 

kassy

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Re: Heatwaves
« Reply #465 on: Today at 05:29:25 PM »
So theoretically if you would want to fix that how much more powerwall would you need, or how much more added solar?
Þetta minnismerki er til vitnis um að við vitum hvað er að gerast og hvað þarf að gera. Aðeins þú veist hvort við gerðum eitthvað.

Bruce Steele

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Re: Heatwaves
« Reply #466 on: Today at 06:32:12 PM »
Kassy, Powerwall keeps track of my power use. So my use for this year to date
6038 kWh from solar
1897 kWh from powerwall
248 kWh from grid
1617 kWh to grid

Powerwall always holds 14.7 kWh in reserve for blackouts.

So I don’t have much of a problem and the cost of properly insulating my house is prohibitive.
Manufactured house with 3.5 inch walls. I could probably retreat to one room with a small A/C when temp exceeds 100F and avoid expensive fixes.

oren

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Re: Heatwaves
« Reply #467 on: Today at 06:45:59 PM »
Great stats Bruce, happy it works for you.