Tag: Fluid dynamics

Time Lapse Of Some Very Cool Clouds

A few atmospheric features you don’t usually see showed up. Very cool.

tl:dr Watch the second or third video first.

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The plan was to post a time lapse video of our Irvine sky today. Disappointment. The movie was blah.

I looked more closely.

A few atmospheric features you don’t usually see showed up. Very cool.

In these movies you’re looking northeast. There’s a ridge line, then mountains around 12 miles away. When the direction and altitude are right, mountains cause turbulence, The smooth flow of the atmosphere is disturbed. Standing waves form.

The next thing you know you get lenticular clouds. They are lens shaped and virtually stationary. Without time lapse you might not realize they’re there.

Below you’ll find the full sky time lapse and two ‘zoom ins’ where you can concentrate on just the clouds. Enjoy!

Now It’s Tropical Storm Arthur

After grazing the North Carolina coast Arthur will be picked up by a midlatitude front and ushered to sea. Friday’s New England rain will be enhanced (intensified) by Arthur’s moisture. That’s especially true in Eastern Connecticut and more so in Rhode Island and the Cape.

Atlantic TROPICAL STORM ARTHUR - Google Maps

Invest 91 became Tropical Depression 1, which is now Tropical Storm Arthur. I can’t not look!

Early season storms are usually wimps. Not always. Remember Andrew!

Intensity guidance, among the poorest prediction guesses we make, says Arthur will briefly become a hurricane on Friday. I expect no hurricane force winds onshore.

The spaghetti strands continue to be tightly clustered. A good sign, especially since the impact to Connecticut (where many of my friends still live) should be minimal, but still significant.

After grazing the North Carolina coast Arthur will be picked up by a midlatitude front and ushered to sea. Friday’s New England rain will be enhanced (intensified) by Arthur’s moisture. That’s especially true in Eastern Connecticut and more so in Rhode Island and the Cape.

By Saturday Arthur’s east of Cape Cod and steaming away. The weekend is saved in New England and elsewhere!

Remember: Though I do follow tropical systems and post when I can, you should depend on a meteorologist who works fulltime watching your weather. I am flattered people still value my opinion, but I shouldn’t be your ‘final answer.’ – Geoff