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Colin McCarthy Profile picture
Colin McCarthy
@US_Stormwatch
Worldwide Extreme Weather | Storm Chaser | Atmospheric Science @ucdavis ‘26 | contact: stormwatchcolin@gmail.com
D/Maske Profile picture 🍏Mark 'V' Ultra🍎 Profile picture 2 subscribed
Sep 23, 2023 • 4 tweets • 2 min read
A severe marine heatwave near Japan has been ongoing for the last several months, with sea surface temperatures currently up to 8°C (14.4°F) above normal.

This is not just a local issue. Both global ocean heat content and sea surface temperatures have reached their highest levels in Earth's recorded history in 2023.
Image If you want to track and learn more about marine heatwaves, check out NOAA's Coral Reef Watch: coralreefwatch.noaa.gov/index.php
Jun 19, 2023 • 4 tweets • 2 min read
A ~4,000 mile long stretch of severe marine heatwave conditions extends all the way from the coastal waters off of West Africa to the coastal waters just south of Iceland.

We are witnessing one of the most extreme marine heatwave events ever recorded in modern history. Image The North Atlantic is 0.6°C warmer today than any other year since at least 1981.

This is astonishing margin considering, water has over 4x the heating capacity of land, meaning it’s takes much more energy to heat water than land. The N. Atl is also over 4x the size of the US. Image
Mar 3, 2023 • 4 tweets • 2 min read
California in October 2022 versus March 2023.

From being entrenched in a multi-year extreme drought to having one of the deepest snowpacks on planet Earth. The latest drought monitor shows that this winter's storms have completely removed drought across the Central Coast, part of the Sierra Nevada, and the far North Coast.

Over the following weeks, drought removal is likely across SoCal, the Bay Area, and all of the Sierra Nevada. ImageImage
Jan 2, 2023 • 7 tweets • 2 min read
Europe is experiencing its worst heatwave ever recorded.

The combined intensity and scale of this winter heatwave is unlike anything in European history. Tens if not hundreds of millions of Europeans experienced the hottest January day ever recorded in their respective regions. All on the same day.
Sep 4, 2022 • 6 tweets • 3 min read
Taking into account the intensity, duration, and extent of the ongoing heatwave, as well as the exceptionally warm overnight lows and the added humidity (especially in SoCal), we are looking at one of the worst heatwaves in modern history for California. Last night SoCal experienced a brutally hot night with millions not seeing temperatures dip below 80F, and that's combined with brutal humidity.

San Diego only got down to 82F, making it one of the hottest nights in city history. The average daytime high in September is 77F.
Aug 23, 2022 • 5 tweets • 2 min read
China is experiencing the worst heatwave ever recorded in global history.

The combined intensity, duration, scale, and impact of this heatwave is unlike anything humans have ever recorded.

Over 260 locations have seen their hottest days ever during this 70+ day heatwave. @extremetemps has been covering this heatwave for months and has found some truly astounding stats. Many locations have experienced nearly a month (!) of their hottest days ever recorded.