Extreme Temperature Diary-April 20, 2018/ Topic: Current Strange Global Weather

guyonclimate_mi5tor

Friday April 20th… Dear Diary. The main purpose of this ongoing post will be to track United States extreme or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials)😊. Here is today’s main climate change related topic:

Current Global Strange Weather

Climate is merely the average of weather events over days, months and years. If a region has a stable climate inhabitants come to expect certain types of seasonal weather events over and over during a lifetime. Should climate start to change long timers will begin to complain of strange or odd weather. Worse, reliable weather for growing traditional crops will become a atypical perhaps leading to food scarcity. “Strange weather” has been occurring across the planet during April 2018, and I’m not writing about a rare tornado in one’s home town, or dry spell. Anyone with any weather sense can see how wacky the weather is getting. Today I thought that I would make a list of some current weather events so that you can be the judge.

First let’s drop by Europe, which has gone from the deep freeze to record warmth in just a few weeks:

London has warmest April day in nearly 70 years, as enormous heat dome consumes Europe: https://www.washingtonpost.com/news/capital-weather-gang/wp/2018/04/19/london-has-warmest-april-day-in-nearly-70-years-as-enormous-heat-dome-consumes-europe/?utm_term=.300442c580d2
11:56 PM – 19 Apr 2018

Etienne Kapikian, a meteorologist with MeteoFrance, tweeted that Paris’s preliminary high of 83.7 degrees (28.7 Celsius) ranked as the fifth-highest April temperature there in 146 years of measurements.

Several locations in France set all-time April highs, MeteoFrance tweeted.

Here is a peak at the mega-ridge over Europe from this morning:

 

Here are some “Extreme Temperatures” or records set in France from yesterday 4/19/2018:

records mensuels – 19/4/2018 – France

29.2°C Troyes, 27.8 25/4/2007
28.3 Roissy, 27.8 25/4/2007
28.0 Creil, 27.9 29/4/1955
27.9 Toussus-le-Noble, 27.1 15/4/2015
27.2 Nancy-Ochey, 27.1 25/4/2007
27.2 Rouen, 26.4 15/4/2015
26.7 Evreux, 26.1 29/4/2010
26.7 Deauville, 25.9 29/4/1955

6:58 AM – 20 Apr 2018
Ah people are enjoying summer in Paris in April donning shorts watching the Seine, which might be a good thing chalked up to global warming, but highly irregular.
Un 20 avril exceptionnellement chaud, Tmax +6 à +14°C/norm

Tx moyenne nationale de 26.6°C (et Tmoy 18.6°C) : 2e journée d’avril la plus chaude depuis l’après-guerre derrière le 30/4/2005 (26.9) !
Quelques records mensuels au nord (jusqu’à 31.1°C à St-Maur ) et même en Corse !

Translated from French by

An exceptionally hot 20 April, Tmax + 6 to + 14 °c/norm Tx national average of 26.6 °c (and Tmoy 18.6 °c): 2nd day of April the hottest since the post-war period behind the 30/4/2005 (26.9)!
A few monthly records in the north (up to 31.1 °c in St-Maur ) and even in Corsica!

12:24 PM – 20 Apr 2018
It’s not only warm to hot in Europe, but in portions of South America as well:
ARGENTINA ATRAVIESA EL ABRIL MÁS CÁLIDO DE LOS ÚLTIMOS 60 AÑOS. 🌡️🌡️🍂

Durante abril el otoño prácticamente no se ha hecho sentir y las temperaturas se mantienen muy por encima del promedio normal para la época. + en

Translated from Spanish by

ARGENTINA crosses the hottest April of the last 60 years. 🌡️🌡️🍂 during April autumn has practically not been felt and temperatures are kept well above the normal average for the time. + In

Next let’s turn back to this country and tornado alley. Hmm, I suppose that the lack of tornadoes is a good thing, but still rather odd. The jet simply has been too far north of the southern Plains for tornadic development:

 

No have been reported in Oklahoma in 2018, nearing a record wait:

12:12 PM – 19 Apr 2018
I believe that the Oklahoma fires are related to the absence of strong storms in that state:

The seen from space – Oklahoma’s 3rd megafire in the last three years, prior to which this was a rare event. Breakdown of the climate science here:
5:09 PM – 19 Apr 2018
The Upper Midwest like Europe during late winter has been in an ice box, cold even by their standards for mid-spring that I contend is due to odd upper latitude warm blocks, which are beginning to finally break down:

Brrrr… 2/3rds way through April and just about everywhere in Northern Plains on pace for coldest April ever recorded!
2:48 AM – 19 Apr 2018

 

Here’s a look at the last North American block configuration with a warm ridge over Hudson Bay and cold closed low (last winter storm) moving through the Midwest:
 
Once again we see a plethora of upper lows on this chart.
And finally for this round of reports we continue to see ice extent, which is part of arctic weather, at record low values:

Today is the 64th *new* daily record sea extent so far this year [JAXA’s AMSR2 satellite].

Compared to previous decades:
—> ~680,000 km² less the 2000s average
—> ~1,130,000 km² less the 1990s average
—> ~1,710,000 km² less the 1980s average

8:46 PM – 19 Apr 2018
 
From time to time I will be offering more “strange global weather” reports. Please drop me a note if you have an event for posting.
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I may add relevant ET information if some crosses my radar later today.

 

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The Climate Guy

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