re: Hurricane Dorian - Headed to Canada

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11:40 am. Pounding. CRASHING. Boards prying off windows. We're moving children to a safe space, wrapping them in blankets. 969 mb. #DORIAN

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And they have another 60 millibars of pressure drop to endure. Ouch.

There is one dude on periscope streaming in bahamas, but he's streaming in his place and you cant see anything, just little rain, where he's at. Nothing to see, really. Just talking and chit chatting with each other.

Calms the scared child. I get where you are coming from, but having something to wrap around you in a scary situation makes you feel at least a little in control. And have a place to shut your eyes & hide. These kids probably don't have much to begin with. Sad & scary as hell anyway you look at it.

Thanks Big Hoss. This is scary video. I accidentally hit down arrow. Won't let me undo. Sorry.

Hope someone can get a picture when they are in the eye

https://www.wjhg.com/templates/2015_Fullscreen_Radar

Eye is on radar now. Drag the map.

Noaa 2 plane is done. AF302 looks to do one last eye pass then I am sure they will be done.

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just depends on the warmth of the water underneath it i guess

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Correct. A hurricane can be modeled thermodynamically as a Carnot heat engine. The Carnot cycle is driven by a difference in temperature and is based on the temperature of the hot reservoir (ocean) and the temperature of the cold reservoir (atmosphere). If you know the temperature of both reservoirs, you can calculate the theroetical maximum work (rate of energy movement) that particular Carnot engine is capable of performing.

Now, because of conservation of energy, the rate at which a heat engine produces energy (work) must equal the rate at which energy is dissipated into the environment by the engine. If you know the size of the hurricane and the "friction factor" between it and the ocean (I use friction as a catch-all for all of the interactions between a hurricane and its surroundings here to simplify the explanation), you can calculate what wind speed would be required to dissipate energy at the same rate as it is produced by the engine, given the temperature differences. This would be the theoretical maximum wind speed. It's a concept similar to being able to predict a car's maximum speed given the power of its engine and how aerodynamic it is. When the car gets to a speed where the push of its engine equals the push of the air moving around the car, that's as fast as the car can go.

I'm not a meterologist, but I know the shite out of some thermodynamics and fluid mechanics, and that's the thermodynamic rationale for the theoretial maximum wind speed of a hurricane. I think it's about 180 or so mph in the Atlantic, given its maximum sea temps and about 200 in the Pacific because it's a little warmer. There have been outliers that went higher that are being studied to find out how.

Well, shite. Thanks for that. Seriously!

Somebody is busy downvoting.