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This is an old revision of this page, as edited by VicBlake (talk | contribs) at 02:49, 24 March 2019 (Update Global Change, Ecosystems and the Earth System ENVIRSC 3BO3 assignment details). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 January 2019 and 9 April 2019. Further details are available on the course page. Student editor(s): KHorton98 (article contribs). Peer reviewers: Ruobeiyu.

Comments

Why are there heatwaves for years beyond 2006? Begreen 19:42, 25 March 2006 (UTC)[reply]

Some believe Global warming is the reason for the current heat wave, future heat waves. Martial Law 19:02, 21 July 2006 (UTC)

A reference to the IPCC summary should be included, esp. the section which highlights the increased risk of extreme weather events such as heat waves with rises in average global temperatures. Having one newspaper reference at [9] is poor form. 90.213.18.30 (talk) 19:27, 5 February 2011 (UTC)[reply]

Current Heat Wave

Can someone state that the 2006 Heat Wave is going on right NOW

in the United States ? Sources are the two weather sites, FOX News, CNN, other news sources. I heard that fatalities have happened already. Martial Law 04:25, 17 July 2006 (UTC)[reply]

I cannot confirm the fatality reports. Martial Law 04:27, 17 July 2006 (UTC)[reply]

I haven't heard of a great deal of fatalities yet. It isn't exactly article-worthy at this point anyway - they need to often last weeks, not days, to raise the fatality rates and smash the records. Though a new wave could be building in this weekend... CrazyC83 19:45, 17 July 2006 (UTC)[reply]

The FOX News, other news agencies, the two weather websites have actually declared that there are heat warnings and heat advisories being issued, now for nearly all of the U.S. Martial Law 21:12, 17 July 2006 (UTC)[reply]

Heat wave Europe

This morning it has been confirmed that 2006 has its second heat wave in The Netherlands. This one is forecast to last at least another week, maybe even 10 days more. It also confirms that there are heat waves in France, Spain and Portugal. The last two countries are warning of extreme temperatures. http://www.knmi.nl/VinkCMS/news_detail.jsp?id=33185 (In Dutch)

The BBC and the British meterological office also speak of a heat wave in the UK. The met office has issued heat warnings to the National Health Service. http://news.bbc.co.uk/1/hi/uk/5193486.stm Bikerams 08:56, 19 July 2006 (UTC)[reply]

- Heat wave in parts of USA, most parts of Europe (UK, Benelex, Spain, Germany) and for what i've read also in Australia. Suggestion: create an article '2006 World Heat Wave?' Marminnetje 14:44, 19 July 2006 (UTC)[reply]

Physical damage

Several areas are reporting that the current heat wave has caused all manner of damage. In Shreveport, LA, it has caused water mains and lines to burst, and in other areas, it has caused roads to serverely buckle and crack. A Satellite link error is fouling my sig and causing me to log out automatically, so, please excuse the sig. If you live in a area affected by this heat wave, your news source will have more info. Martial Law 19:00, 21 July 2006 (UTC)

United States definition

I have found three sources (all .pdf city emergency/hazard plans) which refer to the "3 or more consecutive days above 90°F" stipulation as an official National Weather Service definition, or imply it due to other sections which refer to it[1](page 33),[2](down right now),[3](page 40); however, I can't find that specific definition anywhere on the NWS website, so either they're hiding it, or, more likely, the definition was discontinued recently (recently enough that countless media outlets referred to it this summer). Can anyone add? i have a heat wave in my ass


FWIW, whenever I do various Google searches, I find the statement in one-time NWS statements...example, as of the current time Mapsax 21:47, 8 August 2006 (UTC)ther is a big heat wave in the desert[reply]

Cause?

I looked and didn't find that the article gave a cause for heat waves. Does anyone know what is the cause? I know that global warming is said to be part of the cause, but what is the full cause? --Meraculas 20:54, 14 January 2007 (UTC)[reply]

I have now inserted what I know and what I have found about heat waves and the reasons that they happen. It is suprisingly difficult to find the information. I had to put a collection of different reasons to which they occur together from all the different causes I know of. This is because there is not one single cause. Heat waves are caused by many factors. --84.65.94.156 12:15, 3 September 2007 (UTC)[reply]

Definition

A peer-reviewed definition from the Glossary of Meteorology:

heat wave—(Also called hot wave, warm wave.) A period of abnormally and uncomfortably hot and usually humid weather.
To be a heat wave such a period should last at least one day, but conventionally it lasts from several days to several weeks. In 1900, A. T. Burrows more rigidly defined a “hot wave” as a spell of three or more days on each of which the maximum shade temperature reaches or exceeds 90°F. More realistically, the comfort criteria for any one region are dependent upon the normal conditions of that region. In the eastern United States, heat waves generally build up with southerly winds on the western flank of an anticyclone centered over the southeastern states, the air being warmed by passage over a land surface heated by the sun. See also hot wind.

Evolauxia 21:22, 4 June 2007 (UTC)[reply]

Up until my edit today, the article claimed that the World Meteorological Organization defines a heat wave as a period of >5 days with a maximum temperature more than 5°C above the local average. This claim was uncited, and I can find no trustworthy source confirming that this is the WMO's preferred definition (excluding other web pages repeating this claim, presumably having used WP as their source). in fact, some legitimate sources suggest that the WMO does not have an official definition for a heat wave. The definition given seems to be based on an article by Frich who et al, who defined the "Heat Wave Duration Index" as the maximum "maximum period > 5 consecutive days with Tmax >5°C above the 1961–1990 daily Tmax normal". I have edited the article to make this clearer. CowboyBear (talk) 01:27, 20 January 2015 (UTC)[reply]

Fatalities

I have read that cold temperature extremes cause more deaths on average in the United States than heat waves. This article says the opposite. So I guess someone needs to find the source for that.

--75.28.95.173 02:52, 7 June 2007 (UTC)[reply]

Risk of death

A meta-analysis has looked at the risk of death and factors that may improve or worsen the risk: doi:10.1001/archinte.167.20.ira70009 JFW | T@lk 21:30, 13 August 2007 (UTC)[reply]

Interesting.--Mo Mo Mo! (talk) 17:21, 1 February 2009 (UTC)[reply]

Limited Scope and Biased

I think the incidents etc are very biased in the sense that they present primarily a European/American/Australian definition of a heat wave. The temperatures mentioned are very much common in countries like India and major parts of Africa. A four day stretch of 40 C+ temperatures is normal. In fact places like Ahmedabad in western India are known to have the high temperature for the whole month of April and May above 40 C. The page on Geography of Ahmedabad can be used of reference which shows that temperatures remains in the 40's throughout the months of March to June.

A more thorough research of the weather records is required for this article to be complete and exhaustive.

Possible Heatwave

There may be a possible Hemispheric Heatwave soon. A good example is what happened in 2006 in BOTH Europe, North America, Asia when heat waves struck at the same time thus qualifying that one to be a "Hemispheric Heat wave" since the Northern Hemisphere was affected. 205.240.146.121 (talk) 16:57, 8 May 2008 (UTC)[reply]

2008 Heat Wave/ 2008 Heat Storm

This just started in the Southern US. Temps are in the high 90s, humidity is in the 40-50+% range, heat index is in the 100s. Affected areas are Texas, Louisiana, Oklahoma to the Atlantic Ocean and to the Gulf of Mexico. 65.163.115.204 (talk) 20:53, 6 June 2008 (UTC)[reply]

Got another (possible) one that may be starting up, as of the sig time here. Temps are already in the HIGH 90s.65.173.105.27 (talk) 20:24, 8 July 2008 (UTC)[reply]
This is now definate. Dallas and points East, south and north as well as the West will have 100 degree temps AS highs for several days. See NOAA and the Weather Channel for more. This is a confirmed heat wave folks.65.173.105.27 (talk) 06:47, 10 July 2008 (UTC)[reply]
This is a confirmed event that is going on.65.163.117.135 (talk) 04:19, 3 August 2008 (UTC)[reply]

Pic

In general, I am not against pictures to illustrate a point. However, the current picture next to Mortality to, I suppose, illustrate perspriation is completly out of place. Hot chicks are great and all, but it is not representative of the kind of danger a heat wave causes. This chick is not dying of heat stock, she is glistening from a work out. 07:55, 1 February 2009 (UTC)75.177.47.137 (talk) 23:48, 19 January 2010 (UTC)[reply]

Spelling

I think that the usual spelling is heatwave as used by the SES and government etc. Cgoodwin (talk) 01:48, 17 February 2009 (UTC)[reply]

Thats true but the problem is this article is a World wide article and different countries have there own way of spelling "heatwave"[4]. I think you will also find that US spelling has been used for the article[5]. Bidgee (talk) 01:57, 17 February 2009 (UTC)[reply]

Yes, "heatwave" is the correct spelling. Dadge (talk) 21:50, 23 July 2015 (UTC)[reply]

Agreed, as with bushfire and wildfire, used in this very article.

Prediction

Although it will be too late when this is added, perhaps a section on PREDICTING them? All forms of weather can (or should be able to) be predicted, so....

Perhaps the techniques used to predict them? That would be helpful to people wanting to learn about that. —Preceding unsigned comment added by 64.233.227.21 (talk) 21:28, 9 February 2010 (UTC)[reply]

Copy Edit donation from Severe weather

Heat waves are generally capable of occurring at any geographic location. These weather phenomenon usually occur when large quantities of cool, dry air masses become stationary over an area for long periods of time. Warm, moist air from the Gulf of Mexico, the Mediterranean sea or any other large bodies of water then become presented underneath the stationary cool air mass. The cool air masses causes process of inversion to occur, which is unsuitable for clouds to develop. Without the presence of clouds, more severe radiation can be exposed upon an area, causing temperatures to increase at rapid rates.[1]

This information is from the Severe weather article and my fit better here. Respectfully Bullock ✉ 03:36, 29 May 2010 (UTC)[reply]

How they occur

Cnrwil004 (talk) 22:28, 3 March 2012 (UTC)This section contains no references and some of the ideas seem contradictory or suspicious. For example, the lack of high level clouds and low humidity in deserts can hardly constitute a cause of heat waves in such regions. Also, in the South-western Cape of South Africa, where I stay, heat waves are usually associated with low (not high) pressure systems, responsible for off-shore flow, a mechanism I suspect may also at work during heat wave episodes along the eastern and southern coasts of Australia.[reply]

Also, the section is copied from [[6]], and is almost certainly copyrighted.
I did find a good source on the formation of heat waves from the US National Weather Service, and used it to replace the copyrighted material. This and several other sources confirm the role of high pressure. Perhaps there is a different mechanism in the parts of the world you mention. Sagredo⊙☿♀♁♂♃♄ 05:22, 25 March 2012 (UTC)[reply]

Merge Heat Storm

The article Heat storm is a defintion WP:Dictionary for the same event. It's contents should be moved here and the article turned into a redirect.Sagredo⊙☿♀♁♂♃♄ 18:56, 23 March 2012 (UTC)[reply]

Support. There shouldn't have ever been an article called a heat storm. Famartin (talk) 22:12, 23 March 2012 (UTC)[reply]

Summer 2012 North American heat wave

please have a look at my statements here and discuss: Talk:Summer_2012_North_American_heat_wave#Using_citations_appropriately? — Preceding unsigned comment added by Hasoan (talk • contribs) 19:59, 12 July 2012 (UTC)[reply]

Add, or too obvious?

108.195.138.171 (talk) 07:09, 22 July 2012 (UTC)[reply]

Include increased likelihood by global warming[2] ...
This backs-up with simple Bell curve shift using standard deviation to show statistical analysis confidence.
  1. ^ Jerren Saunders (2002-06-12). "Heat Index Chart / NWS Alert Procedures". Retrieved 2009-08-18.
  2. ^ James Hansen; Makiko Sato; Reto Ruedy (August 2012). "Perception of climate change". Proceedings of the National Academy of Sciences of the United States of America. 109 (32). National Academy of Sciences. doi:10.1073/pnas.1205276109. Retrieved August 10, 2012.{{cite journal}}: CS1 maint: year (link)

108.195.136.231 (talk) 05:32, 15 August 2012 (UTC)[reply]

"Heatwave"

The usage of Heatwave (edit | talk | history | protect | delete | links | watch | logs | views) is under discussion, see Talk:Heatwave (band) -- 76.65.128.222 (talk) 06:19, 26 July 2013 (UTC)[reply]

Definitions

The reference to September heat waves is a northern hemisphere view. It's currently Nov in Australia and heat waves are already beginning and will continue for some months. The weather bureau might have some references: www.bom.gov.au

Split

I recommend that we move the contents of the history section of the heat wave article to a new article, List of heat waves (currently a redirect to the source article). This would make the source article more readable, and would be more in keeping with Wikipedia's convention. Would appreciate other folks thoughts, as I've never done a split of this sort before. Kiwi128 (talk) 10:43, 17 August 2015 (UTC)[reply]

I'll start the split now, as I haven't received any objections. Kiwi128 (talk) 20:32, 20 August 2015 (UTC)[reply]

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recent climate change text

I moved the following new text from the article so we can discuss it first

== Climate Change and Heat waves ==
In recent 3-4 decades, heat waves became more frequent and severe. The rise in temperature and humidity are the main causes. Extremely hot nights became twice more frequent. The area in which extremely hot summers are observed, is 50-100 times larger. The changes can not be explained by natural variability, and attributed by climate scientists to the influence of anthropogenic climate change. Heat waves with high humidity pose a big risk to human health while heat waves with low humidity lead to dry conditions what increase wildfires. The mortality from extreme heat is bigger than the mortality from hurricanes, lightning, tornadoes, floods, and earthquakes together[1].
(As a subheading under climate change and heat waves) === Observed Impacts ===
According to the World Meteorological Organization, the severe heat waves across the northern hemisphere in the summer of 2018, are linked to climate change, as well as events of extreme precipitation. The results was increase in elderly mortality, severe decline in yields, the biggest algae blooming in the Baltic sea for decades, what have poisoned water both for human and animals use, shutting down nuclear power plants in Europe, because the water in the rivers, that is used for cooling the reactors was too warm, and electricity grids crashing across four continents. The impacts was severe, even in the countries considered come rich and well prepared to deal with the impacts of climate change.[2] [3]

References

  1. ^ "Heat Waves: The Details". Climate Communication. Retrieved 16 August 2018.
  2. ^ "July sees extreme weather with high impacts". World Meteorological Organization (WMO). Retrieved 14 August 2018.
  3. ^ Somini Sengupta, Somini (14/08/2018). "2018 will be fourth-hottest year on record, climate scientists predict". The Independent. Retrieved 14 August 2018. {{cite news}}: Check date values in: |date= (help)

My first thought is the first paragraph's use of English is beyond my willingness to try to fix. Also this text says the cause of heat waves is heat and humidity. And the reason for sunshine is sunshine, and the reason for rain is water falls out of the sky. I'm not willing to try to fix this. The second paragraph is was added as a subsection of under the earlier climate change heading, as though sources attribute the last iota of each and every impact to climate change. We don't have RSs that definitively exclude any contribution from internal variation of the climate system. Finally the last paragraph is also being worked on at Effects of global warming. Let's try to keep the job at one location for the time being and cross link from this article to that article. Or we could move from that one to this one, I don't care. But talking about the same text in two places is a problem. Besides, the 2018 heat wave isn't over yet. NewsAndEventsGuy (talk) 10:51, 16 August 2018 (UTC)[reply]

Peer Edit by Ruo Bei Yu

There is a good number of reliable sources and the content is neutral for readers. I would suggest that under physical damages section, you can provide more information about physical damages of heat wave not simply on roads, rails, or places that have been modified by human. It should also address the consequences of heat wave in wilderness or other parts of the world that has not been constructed by humans. Under Psychological and sociological effects section, other factors should be added that contribute to higher crime acts rather than simply income. — Preceding unsigned comment added by Ruobeiyu (talk • contribs) 20:47, 6 March 2019 (UTC)[reply]

Future Effects

Hi, I would like to expand this article with a section focused on future heat waves in relation to global warming.

KHorton98 (talk) 20:55, 19 March 2019 (UTC) KHorton98/sandbox[reply]

Hello... I see you are doing a class project. Sometimes classes talk about articles and talk about editing in class and among each other, but stop short of doing real work on our live articles. That's great, and so is doing real work on our articles. As a point of clarification, just a friendly question.... are you really wanting to do real work on the live article? If so, global warming is already mentioned in two sections of this article, and it could be covered better than it is. Any work you do needs to integrate with what's already here, and needs to be based on reliable sources. THanks for your interest NewsAndEventsGuy (talk) 21:40, 19 March 2019 (UTC)[reply]

Changes to health effects

I think we need to separate the health effects section and make and environmental effects one. Wildfires and future environmental effects do not belong with health effects. KHorton98 (talk) 21:04, 19 March 2019 (UTC) KHorton98/sandbox[reply]

See also Effects of global warming, Effects of global warming on humans, etc. NewsAndEventsGuy (talk) 21:41, 19 March 2019 (UTC)[reply]
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