Today marks the start of the "Dog Days" of Summer in the Northern Hemisphere. It's the 40-day period from July 3 through August 11 when Sirius --- the Dog Star --- rises and sets with the Sun. Sirius is part of the constellation Canus Major or the Great Dog.

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The heat dome over northwest America is just a part of a planetary wave number 4 pattern going around the whole northern hemisphere. I.e. 4 red areas with northward alternating with 4 blue areas with southward air flow aloft.

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Summer Sun says*: "Happy First Day of Summer! Stay cool! Stay shiny!"

*To everyone in the Northern Hemisphere.

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Ready to seize the looongest day of 2021?

This year’s will occur tomorrow at 4.32am BST, meaning this will be the longest day 🌞 and shortest night 🌜 for those living in the Northern Hemisphere.

Read about the science behind solstices: https://t.co/Meqk3zEfGp

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Hopefully spring has already reached all the corners of the northern hemisphere. Is it around your corner of the world yet?
And this little one was born from a random doodling inspired by a springtime theme. Is he a flower fairy? A spring wisp? Something else? I have no idea! ;)

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Randomly gonna tell you guys who my favorite Trails characters are again because I'm just that kinda guy.

Let's do a nice, even 20 characters for this thread.
Starting with

Emma Millstein, Renne, Ries Argent and Wazy Hemisphere.

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⚠️ Historic moment ⚠️

South Africa 🇿🇦 just set a new record for the highest minimum temperature (31.7°C) in Vioolsdrif in April for the ENTIRE Southern Hemisphere.

The same location also smashed the April national record by a full +1.1°C. The record is now +44.8 °C (112.6°F).

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Today 13 April made history again in South Africa. With a minimum temperature of 31.7C set the highest minimum temperature ever recorded in April in the whole Southern Hemisphere. The max. of 44.8C pulverized the national monthly record of 43.7C.

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It's finally getting hot in my hemisphere. Have at the beach ☀️👽💦🌊

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The spring equinox - also known as the vernal equinox or the March equinox - officially marks the beginning of spring in the Northern Hemisphere. Yes, it’s the softy knock of spring. Do you feel it yet?

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Today (20Mar21) is the spring for the northern hemisphere and autumn for the southern hemisphere. Equinox comes from the Latin term aequinoctium or "equal night", the day has the same duration as the night in all places on Earth.

Acrilic on canvas

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Spring Equinox has arrived today in the northern hemisphere. We're returning to center, our fire has been lit. Let us begin with the courage and commitment to dismantle systemic racism and work for a healthier humanity and earth.

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“Stop procrastinating, and just make a decision!” said the left hemisphere of the brain to the right hemisphere.

The joy of overthinking in

https://t.co/UvLCdz0be1

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Spikor, evil Master of gladiatorial combat, champion of the Dark Hemisphere.

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From exceptional warmth to brutal cold.

Records are being broken left, right and centre this winter. A story of weather extremes across the Northern Hemisphere. But how much is climate change playing a role?

https://t.co/OZVFmDwqgv

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Over the past three months, a sudden stratospheric warming split apart Earth's polar vortex & shifted weather patterns in the northern hemisphere. The Aeolus satellite caught it happening. https://t.co/adRSjxQqfl

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How is 2021 going for you?

This is how January 2021 went for the Northern Hemisphere. Exceptionally warm in North America and Arctic. Some places average more than +10°C warmer than normal.

Very cold Russia, Asia and cool western northern and western EU.

THREAD

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And so, winter begins in the Northern Hemisphere. Illustration by Kelly Freas, printed in Science Fiction Monthly, February 1976.

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Day 5: "Sunny Christmas (Southern Hemisphere)"
Featuring 's Gizzy enjoying a cold drink in the middle of a very hot day... Yup, that's how it is here, in the southern hemisphere...

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