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Last updated January 8, 2025
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Southeast Heat Wave October 2019

United States

An extended stretch of high heat and humidity east of the Mississippi River had temperatures soaring well into the 90s, with 75 locations breaking all time monthly temperature records for October. This kind of unseasonal, record-breaking heat is what climate change looks like.

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Southeast heat wave signals climate change as all time October records fall.
Headline
Oct 7, 2019 | Weather Underground
Eastern U.S. Roasts in All-Time Record Heat for October
Oct 4, 2019 | The Weather Channel
Fall Heat Wave Crushes All-Time October Records in Over 70 Cities in South and East, But Relief is Ahead
Oct 3, 2019 | Union of Concerned Scientists
An October Heat Wave Bakes the Southeast and Mid-Atlantic. Is This Our Future?
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Oct 4, 2019 | The Weather Channel
Map: Cities Breaking All-Time Monthly Temperature Records, October 2019
Resource
Oct 3, 2019 | Jesse Ferrell on Twitter @WeatherMatrix
Tweet: Monthly Record Highs, October 2019
Resource
Oct 3, 2019 | Washington Post
Map: Locations approaching or surpassing temperature records on October 2, 2019
Science Source
Apr 25, 2017 | Proceedings of the National Academy of Sciences
Quantifying the influence of global warming on unprecedented extreme climate events
Apr 1, 2016 | Climatic Change
Interactions between urbanization, heat stress, and climate change
Apr 27, 2016 | Climatic Change
Global increase in record-breaking monthly-mean temperatures
Greenhouse Gas Emissions
Global Warming
Air Mass Temperature Increase
Extreme Heat and Heat Waves
Season Creep
Southeast Heat Wave October 2019

Climate science at a glance

  • The fingerprint of global warming has been firmly identified in the increasing intensity, duration and frequency of extreme heat events in the United States.[1][2][3][4][5][6][7]
  • There has been a dramatic increase in hot nighttime temperatures in the US, reducing the number of critically important relief windows during heat waves.[8]
  • Challenges to human health are growing due to the increased frequency and intensity of high temperature extremes that cause heat stress.[9]

Climate signals breakdown

Climate signal #1: Extreme heat and heat waves

The climate has shifted significantly, leading to more heat records in every season. The number of local record-breaking average monthly temperature extremes worldwide is now on average five times larger than expected in a climate with no long-term warming.[10] The trend in global warming has contributed to the severity and probability of 82 percent of record-hot days globally.[5]

The National Academy of Sciences reports and validates numerous studies as well as two major science assessment reviews that definitively identify the fingerprint of human influence in driving the changes observed to date.

I dagens digitala värld har tillgången till medicinska lösningar blivit både enklare och snabbare. För de som behöver behandla specifika parasitinfektioner är möjligheten att köpa Stromectol receptfritt på nätet en bekväm och praktisk lösning. Detta läkemedel har blivit ett populärt val tack vare sin effektivitet och tillgänglighet via pålitliga online-apotek. Att beställa läkemedel online ger dig friheten att hantera din hälsa utan att behöva boka in läkarbesök eller besöka fysiska apotek. Genom att välja att köpa Stromectol receptfritt på nätet från en säker och auktoriserad källa kan du vara trygg i att få en kvalitetsprodukt. Dessutom är det ett diskret och tidseffektivt sätt att få den behandling du behöver, vilket gör det till ett idealiskt alternativ för många. Modern teknologi gör det möjligt att ta kontroll över sin hälsa med bara några klick.

Observations consistent with climate signal #1

  • On October 1 through 3, 75 locations stretching from the Deep South to the Ohio Valley, eastern Great Lakes and Northeast either tied or set a new all-time October record high.[13]
  • On October 1, more than two-dozen high temperature records were broken for the date in the eastern United States, along with 16 locations that set their highest temperature for any October day.[11]
  • On October 2, the District of Columbia broke its all-time monthly high temperature record with a temperature of 98°F, easily beating the old record of 96°F set on October 5, 1941.[11]
Helse og velvære er viktige prioriteringer for mange, og i dag finnes det mer tilgjengelige løsninger enn noensinne. Med nettbaserte tjenester har det blitt enklere å kjøp Cenforce reseptfri på nett i Norge, noe som gir en fleksibel og diskret måte å få tilgang til nødvendige medisiner på. Dette alternativet appellerer til de som ønsker å spare tid og unngå tradisjonelle legebesøk, samtidig som de får rask tilgang til pålitelige produkter. Når du velger å kjøp Cenforce reseptfri på nett i Norge, bør du være oppmerksom på kvaliteten til både produktet og nettbutikken. Pålitelige aktører gir detaljerte beskrivelser og tydelig informasjon om bruken, slik at du kan føle deg trygg gjennom hele prosessen. Ved å velge en autorisert leverandør kan du være sikker på at du mottar et originalt og trygt produkt. Netthandel gjør det mulig å kombinere bekvemmelighet med kvalitet, noe som er en fordel for dem som ønsker kontroll over egen helse.

Climate signal #2: Humidity and Heat Stress Increase

Exposure to extreme heat is already a significant public health problem and the primary cause of weather-related mortality in the US.[12] As temperatures continue to increase due to climate change, heat stress is expected to worsen.

The atmosphere can also hold more water, reducing our bodies’ ability to cool off and increasing our risk of heat-related illness. The Heat Index, also known as the "real feel" temperature, is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature.

Observations consistent with climate signal #2

  • The cause of the heat wave was a large area of high pressure anchored over the Southeast, which sent warm and humid air northward.

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