Please replay to both POST1: and POST2: with at least 200 words each.
I have chosen Stratus. These are the lowest forming clouds, sometimes seen at our level as fog (Met Office, 2020). These clouds form flatly and may or may not precipitate; when they do, it is usually a light drizzle at most. Stratus clouds occur below 6000 feet and typically retain a grey color (Bennett, 2019). They are a result of stable air that doesn’t move vertically very quickly, which would form cumulus clouds instead. This is generally they type of cloud you’re looking at when the sky is overcast.
Stratus clouds are formed by gentle updrafts from cool surfaces, when the air lifts high enough the moisture condensates into what we see as a cloud. Stratus clouds are reclassified into nimbostratus when they produce continued light or moderate precipitation. When they precipitate, snow is generated at higher elevations than rain. There are two “species” or stratus cloud: Stratus nebulous and stratus fractus. Stratus nebulous clouds form a dark, featureless layer that is continuous. Stratus fractus, as the name implies, is where a stratus cloud is breaking up and dissipating, allowing for a view of the sky above.
Bennett, D. (2019). What Kind of Weather Is Associated With Stratus Clouds? Sciencing. Retrieved from: https://sciencing.com/kind-weather-associated-stra…
Met Office. (2020). Stratus Clouds. Retrieved from: https://www.metoffice.gov.uk/weather/learn-about/w…
Growing up in Florida, I am familiar with hurricanes but I have not experienced one first hand. I lived in Orlando wich is inland and hurricanes form over warm water.
The scientific name for hurricanes is tropical cyclones. They are only called hurricanes when they form over the Atlantic Ocean or the eastern Pacific Ocean (NASA, 2019). When they occur in other areas they are called typhoons or cyclones.
Hurricanes, or tropical cyclones, can only form over warm water. The water must be above 79 degrees Fahrenheit, rises, and causes an area of low pressure below. As low air pressure and high air pressure combine the combined air rises, spins, and the water in the air forms clouds. The clouds and wind grow from the ocean’s evaporation of heat and water (AP News, n.d.). The Coriolis force creates the spin either clockwise in the Southern Hemisphere or counterclockwise in the Northern Hemisphere. As the storm grows and spins faster and faster an eye is created in the middle where the conditions are very calm and clear.
There are different categories of these storms depending on the wind speed. If the wind is spinning at 39 mph it is classified as a tropical storm if the speed gets to 74mph it is a hurricane (NASA, 2019). Figure 1 below lists the different classifications of hurricanes.
|Category||Wind Speed (mph)||Damage at Landfall||Storm Surge (feet)|
|5||157 or higher||Catastrophic||19+|
Figure 1. Storm classifications
The worst hurricane in the United States happened in 1900, the Great Galveston Hurricane. It was a category 4 storm on September 8, 1900. It is estimated that 8,000 to 12,000 people were killed because there was no warning system in place. We now have weather warning systems in place to help save lives.
Satellite image of Hurricane Florence 2018 from NOAA (https://apnews.com/47d8e0bf05354260931de08ad9976a37/gallery/media:c3b (Links to an external site.)dc81b09dc4c24b4a4eeb5d7f79d53)
Hurricane off the coast of North Carolina
AP News. (N.D.) A warmer world makes hurricanes wetter and more intense. Retrieved from (https://apnews.com/47d8e0bf05354260931de08ad9976a37 (Links to an external site.))
Geology.com. (N.D.) Deadly Hurricanes. Retrieved from https://geology.com/hurricanes/largest-hurricane/ (Links to an external site.)
NASA. (2019). How do hurricanes form? Retrieved from https://spaceplace.nasa.gov/hurricanes/en/