News from the Arctic: extremely warm these days!

Long, almost 3 weeks persisting NAO- phase in late April and early May 2021 (but weaker AO- phase) is bringing anomalously warm conditions above the Arctic.

In period 29. April - 4. May 2021, very high positive temperature anomalies are expected in Canadian Arctic, Greenland and Russian Arctic, too.

In Canadian part already have been overcame all-time April temperature records (Eureka, -1,9°C and Grise Fiord, +3,4°C) and similar scenario is possible in many parts of Arctic in next days.

Arctic Amplification climate feedback is often, mainly in winter, but too in autumn and spring, associated with NAO- and AO-, when cold air masses from the Arctic are pushed into mid-latitudes in Europe, North America and Asia, while northernmost latitudes alone stay very warm.

According to Severe Weather EU, an unusually strong warm wave headed for the Siberian Arctic Ocean, raising surface temperatures more than 20 degrees above normal during the 3rd April 2021 decade.

According to another watcher, zombie fires are loving these warm Arctic conditions.

Warm Arctic is associated with methane (CH4) emissions from melting permafrost, too, what is considered such as one of the biggest threats of climate change until 2100.

During circulation like this (warm Arctic, cold sectors of mid-latitudes), long Rossby waves often hit subtropical and tropical regions, while another their meanders are shifted above Arctic and subarctic climate zone.

In climate like this, high risk of weather extremes, such as floods and coldwaves on one side of meanders and drought and heatwaves on the other side of meanders are highly frequented.

Already around 10.-15. May 2021 we should transit into NAO+ / AO+ phase, when stormtracks and Rossby waves will shift back into northern latitudes and with them too subtropical belt of very hot air.

Arctic is during NAO+ / AO+ colder, while many parts of mid-latitudes hotter, although, stronger heatwaves are possible during NAO-/AO- and persisting NAO+ / AO+ have in some regions tendency to be more stable (e.g. in summer in Central Europe not heatwaves with +38°C, but only +32°C...).

We will see soon, how strong will be heatwaves in Europe in the first half of May 2021 and what contribution on them will have NAO, AO and creating pressure fields from Greenland to Sahara and what possible NAO+ / AO+ brings into mid-latitudes in the USA, Canada and Asia.

Source: NOAA
Source: NOAA

Read more:

(Visited 15 times, 1 visits today)
Liked it? Take a second to support mkweather on Patreon!
Tags10 day forecast14 day forecast15 day forecast16 day forecastAdana forecastAfrica forecastAlbania weatherAleutian lowAmarilloAntarctica weatherAO ArcticAO forecastAO indexArctic airArctic AmplificationArctic blastArctic changeArctic forecastArctic oscillationArctic Oscillation ArcticArctic weatherArctic weather forecastAsia extreme weatherAsia forecastAsia severe weatherAthens forecastAtlantaAtmospheric blockingatmospheric circulationatmospheric circulation ArcticAustralia forecastAustria weatherBerlin forecastblizzardblocking patternBordeaux forecastBostonBuffaloCAIRO FORECASTCalgaryCanadaCanada forecastCanada long term forecastCanada severe weatherCasperCheyenneChicagoCHISINAU FORECASTcirculation patterncirculation pattern ArcticClevelandclimate changeclimate change ArcticCOBENHAGEN FORECASTcold Arcticcold blastcold spellcold weatherCordoba forecastCORK FORECAST CROATIA WEATHER FORECASTCOVID-19cycloneDenverdroughtdryDRY SEASONDuluthEdmontonEureka recordEuropeEurope ArcticEurope coldest aprilEurope extreme weatherEurope long term forecastEurope severe weatherEurope snow forecastEurope temperature forecastEurope weather forecastEXTREME CIRCULATIONextreme cold weatherEXTREME FORECASTextreme frostsEXTREME LOW TEMPERATURESEXTREME SPRING FORECASTEXTREME TEMPERATURES USAEXTREME WEATHER 2021extreme weather Canadaextreme weather Europeextreme weather USAFinland weatherfloodsforecastFORECAST ALGIERSFORECAST ANKARAFORECAST ANTALYAFORECAST BARCELONAforecast BelarusFORECAST BELEGRADEFORECAST BELFAST FORECAST BELGIUMFORECAST BIALSKO BIALAFORECAST BIRMINGHAMFORECAST BRIGHTONFORECAST BRISTOLFORECAST BRNOFORECAST BUCHARESTforecast Bulgariaforecast CanadaFORECAST CARDIFFFORECAST CHINAforecast CzechiaFORECAST DENMARKFORECAST DONETSKFORECAST DUBLINFORECAST DUBROVNIKFORECAST EDINBURGHFORECAST EGYPTFORECAST ESTONIAforecast EuropeFORECAST FRANKFURTFORECAST GENEVEFORECAST GENOAFORECAST GOTEBORGFORECAST ICELANDFORECAST SAN FRANCISCOforecast USAFrance weatherfrostsGreat Lakes forecastGreece weatherGreenland highgreenland warm weatherHamburg forecastheatwaveheavy rainHelenaHELSINKI FORECASTHeraklion forecasthistoric frostshot weatherHoustonhumidhumidexhurricaneICE RAINIcelandic lowInnsbruck forecastInternational FallsIRELAND WEATHER FORECASTIstanbul forecastItaly weatherIzmir forecastJapan forecastJapan weatherKansas CityKARASJOK FORECASTKOELN FORECASTKorea forecastKOSOVO WEATHER FORECASTKRAKOW FORECASTKYIV FORECASTLa Coruna forecastlandslidesLATVIA WEATHER FORECASTLE HAVRE FORECASTLIBYA WEATHER FORECASTLisbon forecastLITHUANIA WEATHER FORECASTLJUBLJANA FORECASTLODZ FORECASTLondon forecastlong-term forecastLos AngelesLULEA FORECASTLUXEMBOURG WEATHER FORECASTLYON FORECASTMadrid forecastMalaga forecastMALTA WEATHER FORECASTMANCHESTER FORECASTMARSEILLE FORECASTMay 2021 forecastmethane ArcticMiamiMid-Atlantic forecastMiddle East forecastMIDDLE EAST WEATHER FORECASTMidwest forecastMILAN FORECASTMINSK FORECASTMOLDOVA WEATHER FORECASTMongolia forecastmonsoonmonsoon AsiaMONTENEGRO WEATHER FORECASTMontrealMOROCCO WEATHER FORECASTMOSCOW FORECASTMunich forecastMURCIA FORECASTNAO ArcticNAO forecastNAO indexNAPLES FORECASTnegative phase Arctic oscillationnegative phase NAONETHERLANDS WEATHER FORECASTNew YorkNEW ZEALAND FORECSASTNICOSIA FORECASTNOAANorth Atlantic OscillationNorth Atlantic Oscillation ArcticNORTH MACEDONIA WEATHER FORECASTNORTH PACIFIC LOW PRESSURENortheast forecastNorthern HemisphereNorthern Plains forecastNorthwest forecastNorway weatherNOVOSIBIRSK FORECASTODESA FORECASTOklahoma CityOrlandoOSLO FORECASTOttawaOULU FORECASTOymyakon forecastParis forecastPEAK WEATHERPhiladelphiaPhoenixPittsburghPODGORICA FORECASTPOLAND WEATHER FORECASTpolar vortexPorto forecastPORTUGAL WEATHER FORECASTPrague forecastPRISTINA FORECASTQuebecRABAT FORECASTRAINY SEASONRapid CityREYKYAVIK FORECASTRIGA FORECASTRocky MountainsROMANIA WEATHER FORECASTRossby Waves ArcticRussia extreme frostsRussia forecastSAHARA FORECASTSANKT PETERSBURG FORECASTSCOTLAND WEATHER FORECATSEASONAL FORECAST USASeattleSERBIA WEATHER FORECASTsevere frostsSEVERE WEATHE RUSASevilla forecastSiberia warm weatherSiberian blastSiberian highSioux Fallsski center Europe forecastSKOPJE FOECASTSLOVAKIA WEATHER FORECASTSLOVENIA WEATHER FORECASTsnowstormSOFIA FORECASTSOUTH AMERICA FORECASTSOUTHERN USA FORECASTSouthwest forecastSPAIN WEATHER FORECASTSTOCKHOLM EXTREME SPRING FORECASTstormstorm forecaststormtrackSWEDEN EXTREME WEATHER FORECASTSWITZERLAND WEATHER FORECASTTALLIN FORECASTtemperature recordtemperature record Arctictemperature recordsthunderstormTIRANA FORECASTTorontoTORSHAVN FORECASTTROMSO FORECASTtropical cycloneTropical depressiontropical stormTROPICAL SYSTEMtropicaltidbitsTulsaTUNIS FORECASTTURKEY WEATHER FORECASTtyphoonUK weather forecastUKRAINE WEATHER FORECASTUSUSA coldwaves AprilUSA extreme cold blastUSA extreme weatherUSA forecastUSA long term forecastVancouverVILNIUS FORECASTWales weatherwarm Arcticwarm Arctic cold Europewarm spellwarm weatherWARSAW FORECASTWEATHER 2021 USAWEATHER FORECAST BERGENWEATHER FORECAST CANADAWEATHER FORECAST ENGLANDWEATHER FORECAST ERZURUMweather forecast europeWEATHER FORECAST USAweather outlookWEATHER OUTLOOK USAWEATHER PROGNOSIS USAwetwetterzentralewxchartsZAGREB FORECASTzombie fires ArcticZURRICH FORECAST

ARTICLES

COVID19 LIVE

Widget for web.