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The most powerful solar flare of the current solar cycle occurred 16 hours ago. It peaked at X6.37 magnitude; X flares are the biggest.

High-energy particles and photons bombarded the sensor onboard NASA’s Solar Dynamics Observatory (right), making the fuzzies.

Last Night's Forecast, in case you missed it:

Flooding California Rains

An atmospheric river will continue to drench California, bringing strong winds and heavy rainfall. A level 3 out of 4 red zone moderate risk for flash flooding and excessive rainfall has been drawn by the National Weather Service for Los Angeles and Ventura Counties too. Matthew Cappucci has an update.

https://myradar.com/videos/4932

retooting MyRadar's Own Matthew Cappucci

IT’S HERE! 😍

“Extreme Weather for Kids” is officially off the printing presses. I just got my copy today. Order yours too!

I managed to sneak in tons of niche weather terms AND I introduce “Tornado County” instead of “Tornado Alley.” https://quartoknows.com/authors/Matthew-Cappucci/

Project done. ✅🥹

https://x.com/MatthewCappucci/status/1759769846856798564

In case you missed it from last night:

Atmospheric River Closing In on California

Another atmospheric river is about to strike California. Heavy rainfall, significant mountain snow, gusty winds and even a tornado or two will be possible. MyRadar meteorologist Matthew Cappucci has a special Sunday night update.

https://myradar.com/videos/4929

A quick-moving clipper system will bring some snow to the Mid-Atlantic late Friday night into the predawn hours Saturday.

Here's a first stab at how much snow could fall:

Wisconsin just saw their FIRST February tornado on record.

Climate changed did demonstrably play a role, as off-season severe events are being increasingly fed by anomalously warm weather.

Northeast Snowstorm Update

A quick-moving snowstorm is plastering the coastal Northeast with a plowable snowfall, with up to a foot possible in some spots. The snow is increasing in intensity in southern New England but winding down to the west. Matthew Cappucci has an update.

https://myradar.com/videos/4924

An active winter day is underway across the Northeast!

We'll have a hyperlocal update from meteorologist
@MatthewCappucci
breaking down possible snow totals in the app shortly!

A supercell near Henry, Illinois produced a #tornado on Thursday evening near Highway 18.

Here is Storm Chaser JordanHallWX coverage of this intense storm.

Sneaky Midwest Tornado Risk

A level 1 out of 5 marginal risk of severe weather has been drawn for northern Illinois, southern Wisconsin, and the Chicago metro area. There’s a low risk of a storm forming, but if it does, it could become a tornadic supercell. Meteorologist Matthew Cappucci has an update.

https://myradar.com/videos/4916

Unfortunately, #California has one more band of precipitation that could give Los Angeles and San Diego another 0.25-0.75 inches of rain this evening.

Any given place sees about 6 hours of rainfall, with snow in the mountains. The Sierra could see another 3-9 inches.

This is beneath the core of an upper-level low – a pocket of high altitude cold air, low pressure and spin aloft.

The frigid upper levels contrast with a milder surface, allowing surface pockets of air to rise and form downpours.

Android Auto gets another new weather app that shows live radar on your route

https://9to5google.com/2024/02/07/android-auto-my-radar-app/

The National Hurricane Center will begin issuing an experimental Tropical Cyclone Forecast Cone Graphic on our around August 15, 2024, that includes inland tropical storm and hurricane watches and warnings for the continental U.S.

Read more here:

https://www.nhc.noaa.gov/pdf/NHC_Cone_Graphic_Change_Announcement.pdf

^^^

The previous post brought to you due to a question from yesterday by CoSo's own @VelvetDuchess .

Category 6 Hurricane: Is it even possible?

The Saffir-Simpson scale, which rates hurricanes based on wind speed, ends at Category 5. But what would a hypothetical Category 6 look like? Is it even possible? MyRadar meteorologist Matthew Cappucci has a deep dive.

https://youtu.be/WN5G0IMplFE

Here's one final look at the atmospheric river as it finally shifts east by Wednesday:

That made for a few isolated thunderstorms and a very low-end brief #tornado chance late Tuesday with some chance going into Wednesday.

But then we're not done yet – there's storm juice, or fuel (CAPE, that filters in behind the atmospheric river as temperatures aloft cool. The relatively warmer ocean contrasts, and heats surface air, encouraging it to rise.