Please replay to both POST1: and POST2: with at least 200 words each.
POST1:
I havechosen Stratus. These are the lowest forming clouds, sometimes seen atour level as fog (Met Office, 2020). These clouds form flatly and may ormay not precipitate; when they do, it is usually a light drizzle atmost. Stratus clouds occur below 6000 feet and typically retain a greycolor (Bennett, 2019). They are a result of stable air that doesn’t movevertically very quickly, which would form cumulus clouds instead. Thisis generally they type of cloud you’re looking at when the sky isovercast.
Stratus clouds are formed by gentle updrafts from cool surfaces, whenthe air lifts high enough the moisture condensates into what we see as acloud. Stratus clouds are reclassified into nimbostratus when theyproduce continued light or moderate precipitation. When theyprecipitate, snow is generated at higher elevations than rain. There aretwo “species” or stratus cloud: Stratus nebulous and stratus fractus.Stratus nebulous clouds form a dark, featureless layer that iscontinuous. Stratus fractus, as the name implies, is where a stratuscloud is breaking up and dissipating, allowing for a view of the skyabove.
Stratus Cloud
https://scied.ucar.edu/imagecontent/stratus-clouds
References:
Bennett, D. (2019). What Kind of Weather Is Associated With StratusClouds? 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…
POST2:
Hurricanes
Growing up in Florida, I am familiar withhurricanes but I have not experienced one first hand. I lived in Orlandowich is inland and hurricanes form over warm water.
The scientific name for hurricanes is tropical cyclones. They areonly called hurricanes when they form over the Atlantic Ocean or theeastern Pacific Ocean (NASA, 2019). When they occur in other areas theyare called typhoons or cyclones.
Hurricanes, or tropical cyclones, can only form over warm water. Thewater must be above 79 degrees Fahrenheit, rises, and causes an area oflow pressure below. As low air pressure and high air pressure combinethe 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 inthe Southern Hemisphere or counterclockwise in the Northern Hemisphere.As the storm grows and spins faster and faster an eye is created in themiddle where the conditions are very calm and clear.
There are different categories of these storms depending on the windspeed. If the wind is spinning at 39 mph it is classified as a tropicalstorm if the speed gets to 74mph it is a hurricane (NASA, 2019). Figure 1below lists the different classifications of hurricanes.
CategoryWind Speed (mph)Damage at LandfallStorm Surge (feet)174-95Minimal4-5296-110Moderate6-83111-129Extensive9-124130-156Extreme13-185157 or higherCatastrophic19+
Figure 1. Storm classifications
( https://spaceplace.nasa.gov/hurricanes/en/) (Links to an external site.)
The worst hurricane in the United States happened in 1900, the GreatGalveston Hurricane. It was a category 4 storm on September 8, 1900. Itis estimated that 8,000 to 12,000 people were killed because there wasno warning system in place. We now have weather warning systems in placeto 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
(https://apnews.com/47d8e0bf05354260931de08ad9976a37 (Links to an external site.))
Resources:
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/
