Hurricane Definition and 71 Threads

Do hurricanes experience the Coriolis effect going down or up category after crossing the equator? The Coriolis effect is what makes water spin counter clockwise/clockwise down a drain on either side of the equator. Is this the correct sub forum for this post?

I tend to enjoy tracking hurricanes on my own, in my spare time. I have noted how Hurricane Milton sped up quickly from a 1 over land to a 2, 3 and then 4, then 5. Then, down to 4. Then, back up to 5 Now, back to 4. Does anyone know of a site that, say, shows the position of the hurricane, as...

What happened to the forecasting on this one?

Tropical Update from the NHC in Miami, FL. (August 18, 2023)

https://www.saildrone.com/press-release/ocean-drone-captures-video-inside-category-4-hurricane The Saildrone Explorer SD 1045 was directed into the midst of Hurricane Sam, which is currently on a path that fortunately will miss the US East Coast. SD 1045 is battling 50-foot waves and winds of...

The marker wrote that the answer is 4 and it's because m and v double. I don't understand how m doubles??

I just took a peek at the NOAA Hurricane site: NOAA Atlantic Hurricane Site It's pretty crowded out there: 4 disturbances and 2 tropical storms. I have never seen so much activity. Here is a screen shot (from 9/11/2020): If there are more storms (and this is just the middle of the season)...

First I have to explain that this is not actually a homework problem. It is a problem I created to use in a sort of game. If I made a mistake, it tends to ball up the game. So I am looking for someone to double check my answer, and to point out any errors in my statement about physics. I prefer...

Here is a NASA article on "Hurricane Anatomy" https://earthobservatory.nasa.gov/features/Hurricanes/hurricanes_2.php The first issue I have is the apparent reversal of the angular momentum when going from surface winds to the winds in the covering cloud cap. In the northern hemisphere, surface...

Here's a question I want to ask a physicist: Is it possible for a hurricane in Earth's northern hemisphere to have sufficient linear momentum (directed South) to cross Earth's equator and still persist as a CCW-rotating hurricance but in the southern hemisphere? If so, for approximately how much...

Hurricane hunters spot 'stadium effect' inside Dorian's eye amid 'extremely intense' storm, from, https://www.foxnews.com/us/hurricane-dorian-eye-hunters-stadium-effect-cyclone.amp?cmpid=prn_newsstand A collection of images and videos of the hurricane Dorian from...

mod note: positively no politics will be allowed Hello All: The current hot topic on the news is using nuclear weapons against hurricanes . But couldn't we use other approaches ,using some nuclear reactors mounted in a plane or balloon that emit calculated levels of radiation in the center of...

Stay safe PFers in the area. We know there are many of you. Reports are the outer bands have just hit NC and there is already flooding. https://weather.com/

"How do you observe the invisible currents of the atmosphere? By studying the swirling, billowing loads of sand, sea salt and smoke that winds carry. A new simulation created by scientists at NASA’s Goddard Space Flight Center in Greenbelt, Md., reveals just how far around the globe such aerosol...

I don't care whether it goes clockwise or anticlockwise so this is not the usual Coriolis conversation. Why doesn't it just go down straight?

I find it interesting that most of the tropical forecast "Spaghetti" models put out by the NHC have Jose well out to sea as it tracks off the east coast of the US. But those models do not include the incredibly accurate ECMWF "European" model, which tracks the storm closer to the US east coast...

Is there a website that has online satellite views of locations recent enough to show results of hurricane Irma?

From CNN: Powerful Hurricane Irma is rapidly intensifying in the open Atlantic and poses a major threat to the Caribbean and potentially to the United States next week. With the storm still five days away from the outermost Caribbean islands and at least a week away from any potential US...

This is a picture my buddy sent me. There is an interstate underneath all this water. Anyone in Texas, be safe!

With Hurricane Harvey hitting the Texas Gulf Coast, I came across this article, while trying to learn about these different computer models. I found the article in this PDF file an interesting read. I'm sure that there have been some advances in real-time prediction methods, since this article...

Hurricane Harvey, rapidly intensifying in the Gulf of Mexico, is expected to make landfall in less than 24 hours near Corpus Christi, Texas. After hitting Corpus Christi, the storm is expected to stall over the state, forecasters say. The storm officially became a category 2 hurricane as of 1...

It looks like Hurricane Matthew is going to run up the US east coast like a buzz-saw from Florida to South Carolina: http://www.bbc.com/news/world-us-canada-37571685 If you're curious about what a one-way expressway (motorway) looks like, check out the traffic cameras along route I-26 between...

Hi, I'm doing research in CFD and I'm trying to do a LES of a hurricane. Problem is, I don't remember much about LES. I took a class in CFD about a year and a half ago and most of it is gone. I've read the wikipedia page on LES but I'd like to dive in deeper. Does anyone have any suggestions?

Old article: http://edition.cnn.com/2009/TECH/science/08/28/hurricanes.gates.gray/ What do you guys think? Where do you see this project going? The official word is that it's not being publicly funded. But if there was even a 10% chance it would work, I see governments lining up at the...

Why did Hurricane Patricia become a monster so quickly? http://news.yahoo.com/why-did-hurricane-patricia-become-monster-quickly-202419311.html Patricia slams Mexico Pacific Coast as Category 5 hurricane http://news.yahoo.com/mexicos-pacific-coast-braces-monster-hurricane-patricia-040315825.html

Would the pressure on my skin, try to explode out, just like a hurricane and a roof, in which the high velocity over the roof causes low pressure ontop of the roof and high pressure beneath the roof?

Homework Statement In 1993 the radius of Hurricane Emily was about 350 km. The wind speed near the center ("eye") of the hurricane, whose radius was about 30 km, reached about 200 km/h. As air swirled in from the rim of the hurricane toward the eye, its angular momentum remained roughly...

Homework Statement In a simple model of the wind speed associated with hurricane Emily, we assume there is calm eye 18.8 km in radius. The winds, which extend to a height of 4000 m, begin with a speed of 303.0 km/hr at the eye wall and decrease linearly with radial distance down to 0 km/hr at a...

Current event Nasa satellite Cassini spotted a North pole locked hurricane 2000 km wide. http://theconversation.com/nasa-pics-reveal-huge-rose-hurricane-on-saturn-13823

Ok, I"m from New Jersey, and as you may have heard we've been hit pretty bad. ...After spending 3 days in the dark and cold... I've had some time to ponder. My question is a very basic one. I know that many phone lines and wires are put underground. That's why you see the Bell logo on many...

Hi folks, Some people allegedly claim it is better to have a cruise ship out in the ocean rather than in harbor during a hurricane. I don't quite believe it however. I can imagine a cruise ship slamming against docks and getting damaged, but in the ocean it could easily overturn and sink...

Last year, on the weekend before Halloween, we had about 8 inches of snow. Snow! On Halloween! This year, a hurricane (hurricane??!) is threatening to drive up the coast, hang a left through the barren wasteland and plow through southeastern Pennsylvania. Last year, I drove through the...

Homework Statement Imagine the following. You and your best friend are at sea on your ship. Your ship is designed to withstand seas during 120 knot winds. You measure the winds outside your ship at 30 knots. From satellite images and Global Positioning System (GPS) data, you pinpoint your...

Homework Statement There is a single two ane road connecting the Keys with the mainland. The south- bound lane must remain open for emergency vehicles, so only one lane is available for evacuation. In summer, 100,000 residents live on the Keys. Past data taken on the bridge that connects...

Observed at Providence, Rhode Island: 05:30 UTC 28 August 2011: 29.68"Hg 05:45 UTC 28 August 2011: 29.67"Hg 06:00 UTC 28 August 2011: 29.68"Hg 06:15 UTC 28 August 2011: 29.70"Hg 06:30 UTC 28 August 2011: 29.71"Hg 06:45 UTC 28 August 2011: 29.70"Hg 07:00 UTC 28 August 2011: 29.67"Hg 07:15...

I imagine differential equations and statistics are used. What type of math is used to predict the path of hurricanes?

Hello all, I am new here. I have a crazy question. Could a hurricane or tornado have enough energy to create a worm hole? Thanks Buster

Homework Statement Estimate the air pressure inside a category 5 hurricane, where the wind speed is 300 km/hr. Homework Equations P=F/A The Attempt at a Solution I converted km/hr to m/s. V=83.33m/s. That's all I can get. I don't know the area of a category 5 hurricane or the...

Homework Statement During a hurricane, winds can whip horizontally at speeds of 150 km/h. Given that the density of air is 1.20 kg/m3 and the wind after striking the person is brought to rest, calculate the force of the wind on the person. You may assume the person's area to be 1.50 m high...

What would happen if a hurricane swept through the gulf over the area of the spill? How would the oil effect water temp., which contributes to hurricane strength? Would a hurricane pick-up and disperse the oil inland if it made land-fall?...or would a hurricane basically spread the oil out so...

Physics of "Hurricane Balls" Two ball bearings are welded together, placed on a mirror, and blown upon using a straw. The RPM's reportedly can reach 10,000 rpm's. There are numerous vid links, here's one: http://www.liveleak.com/view?i=d5c_1179564591 Anyway, I know this can also be done...

1.A hurricane wind blows across a 7.8 m x 12 m flat roof at a speed of 180 km/hr. What is the pressure difference? How much force is exerted on the roof? 2. Homework Equations P= p_atmos + pgd P=F/AThe Attempt at a Solution p = 101300Pa - (1.3)(9.8m/s^2)(93.6m^2) p = 100107.5Pa 100107.5Pa =...

http://www.popsci.com/military-aviation-amp-space/article/2009-03/hurricane-busters

I wonder if the whirlpool that was recently discovered on the sun effects our weather on earth. http://space.newscientist.com/article/dn14878-hurricanesized-whirlpools-spotted-on-the-sun.html

Is there a way the quantify the energy 'released' by a hurricane? Does the energy have a source so to speak?

It's approaching the western end of Cuba as a category 4 hurricane already. It looks like it will hit the U.S. on Monday night or Tuesday morning. The mayor of New Orleans said today, "I am strongly, strongly encouraging everyone in this city to evacuate. Start the process now." From cnn.com...

Homework Statement The eye of a hurricane passes over Grand Bahama Island. It is moving in a direction 60.0° north of west with a speed of v1 = 37.0 km/h. Exactly three hours later, the course of the hurricane shifts due north, and its speed slows to v2 = 27.0 km/h, as shown in Figure 3-30...

Homework Statement Estimate the air pressure at the center of a hurricane with wind speed of 300 km/h at the center. Answer in Pa Homework Equations P + 1/2 (density)(velocity)^2 density of air 1.29 kg/m^3 The Attempt at a Solution P + 0.5 (1.29 kg/m^3)(90000) Pressure = 58050...

Well, it doesn't officially start for another three weeks. But whereas the government moved up daylight savings time - Mother Nature got a jump on this year Atlantic storm season. The first named storm this year is - Andrea - which is only a subtropical storm at the moment. From the...

Read more on how this "tree" was created here. Quite amazing!