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A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and/or squalls. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane (), typhoon (), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean; in the Indian Ocean, south Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms".
"Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle, whirling round their central clear eye, with their winds blowing counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. The opposite direction of circulation is due to the Coriolis effect. Tropical cyclones typically form over large bodies of relatively warm water. They derive their energy through the evaporation of water from the ocean surface, which ultimately condenses into clouds and rain when moist air rises and cools to saturation. This energy source differs from that of mid-latitude cyclonic storms, such as nor'easters and European windstorms, which are fueled primarily by horizontal temperature contrasts. Tropical cyclones are typically between 100 and 2,000 km (60 and 1,240 mi) in diameter. Every year tropical cyclones impact various regions of the globe including the Gulf Coast of North America, Australia, India and Bangladesh.
The strong rotating winds of a tropical cyclone are a result of the conservation of angular momentum imparted by the Earth's rotation as air flows inwards toward the axis of rotation. As a result, they rarely form within 5° of the equator. Tropical cyclones are very rare in the South Atlantic (although occasional examples do occur) due to consistently strong wind shear and a weak Intertropical Convergence Zone. Conversely, the African easterly jet and areas of atmospheric instability give rise to cyclones in the Atlantic Ocean and Caribbean Sea, while cyclones near Australia owe their genesis to the Asian monsoon and Western Pacific Warm Pool.
The primary energy source for these storms is warm ocean waters. These storms are therefore typically strongest when over or near water, and weaken quite rapidly over land. This causes coastal regions to be particularly vulnerable to tropical cyclones, compared to inland regions. Coastal damage may be caused by strong winds and rain, high waves (due to winds), storm surges (due to wind and severe pressure changes), and the potential of spawning tornadoes. Tropical cyclones draw in air from a large area and concentrate the water content of that air (from atmospheric moisture and moisture evaporated from water) into precipitation over a much smaller area. This replenishing of moisture-bearing air after rain may cause multi-hour or multi-day extremely heavy rain up to 40 kilometers (25 mi) from the coastline, far beyond the amount of water that the local atmosphere holds at any one time. This in turn can lead to river flooding, overland flooding, and a general overwhelming of local water control structures across a large area. Although their effects on human populations can be devastating, tropical cyclones may play a role in relieving drought conditions, though this claim is disputed. They also carry heat and energy away from the tropics and transport it towards temperate latitudes, which plays an important role in regulating global climate.
Eventually. Where will the weakening hurricane track in the next couple of weeks? Our way? Dunno. It could make a tremendous difference in our immediate future. They usually track South and East.. But this one is very far North. That is all.
After moving to Florida almost 5 years ago, will be 5 years in August 2018, I thought I was in pretty good shape for a power shutdown, etc. Had a small generator, propane heater, kerosene heater, batteries, lighting, etc.
But then the HURRICANE came late last year. Scared the be-Jesus out of us...
Ft Collins, CO –-(Ammoland.com)- Harvey Follow-up:
“Prepare, or go hunting for a four-leaf clover” ~ Marshall
Comments from our students and instructors in the affected area, all of whom are, of course, well prepared:
“Power and water are off altogether in many areas, intermittent in others”...
The inside story of what it took to keep a Texas grocery chain running in the chaos of Hurricane Harvey
Some learnings from the Supply side of the Texas Hurricane.
May have some incite on what you should stock.
So long story short. I have a buddy that lives in Corpus Christi Texas. He is not a prepper by any means but very handy and always ready for what might come at him. His background is retired coast guard.
When the latest hurricane came through he grabbed what he needed boarded up his house...
Pretty cool! Click where you want a reading. Click where it says "Earth" to change the parameters. Of course you can move it to where ever you want.
earth :: a global map of wind, weather, and ocean conditions
Bushnell Scopechief IV. Came off a rifle I traded for. Don't know much about it other that that it works. Rings included, picatinny size.
Hurricane Optima, or Optima Hurricane? Dunno, found in grandpa's stash. Missing turret cap but functions. Has 1 original lense cap, lense cloth, and box. One...