User:Pilover819/SScience

Science is my second favorite subject. It has most of my favorite stuff.

Weather[edit]

Weather is my favorite subject in science. I know a lot about them, and I will keep learning more. The lowest and highest temperatures recorded are

-128.56 F and 135.6 F.

Thunderstorms[edit]

Thunderstorms are storms that includes thunder and lightning. There are isolated, scattered, strong, and sometimes severe thunderstorms. A severe thunderstorm is when the winds reach 39 mph, the same as tropical storm strength. These severe thunderstorms may create tornadoes. For categories of tornadoes, go and see this below: Tornadoes

Hurricanes[edit]

Tropical cyclones are storms that form in warm waters and have spiral arms (when they are hurricanes) like galaxies. They use the Saffir-Simpson Hurricane Scale. Almost every storm starts as a tropical wave, then forms into a tropical depression, and upgrades to a tropical storm. Then, if the winds are strong enough, it becomes a hurricane. The winds are usually over 74 mph to become a hurricane. I'll tell you the wind speeds of categories of hurricanes. They are known as tropical cyclones in the Indian Ocean, in the Atlantic and East Pacific Oceans they are known as hurricanes. They are known as typhoons in the West Pacific Ocean.^[1]

Tropical depression[edit]

A tropical depression is the first step to becoming a hurricane. It as winds less than 40 mph, and it may upgrade, or it may be downgraded to a remnant low.

Subtropical depression[edit]

Subtropical depressions are depressions that form in the cooler waters and start to die down.

Subtropical storm[edit]

A subtropical storm is a storm that forms in the cooler waters and lower windshear. Usually the wind shear is 10 knots. It starts to die down if the wind shear is increasing.

Tropical storm[edit]

A tropical storm is a tropical cyclone that gets upgraded from a tropical depression. It has winds of 39 mph to 73 mph.

Category 1[edit]

It has winds of more than 74 mph, although less than 95 mph.

Category 2[edit]

Category 2 has winds of 96 mph or more, although it has winds less than 110 mph.

Category 3[edit]

Category 3 is the mark of being a major hurricane. Hurricane Gordon of 2006 is such a hurricane. It has winds of 111 to 130 mph.

Category 4[edit]

Category 4 has winds of 131 miles per hour to 155 miles per hour.

Category 5[edit]

Category 5 is the highest category in the Saffir-Simpson Hurricane Scale. It has winds of more than 156 mph. Hurricanes Dean and Felix of 2007 were Category 5 hurricanes.

Possible Category 6?[edit]

There has been a rumor about a Category 6. This happened after some hurricanes reaching winds up to 185 mph. If there was such Category 6, it would have winds of more than 175 or 180 mph.

Tornadoes[edit]

Tornadoes are funnel clouds that form out of supercells in severe thunderstorms. The U.S. uses the Enhanced Fujita Scale. Before Feb. 2007, they used the Fujita scale. However, other countries still use the Fujita Scale. Here's a list of categories:

EF0: 65 to 85 mph
EF1: 86 to 110 mph
EF2: 111 to 135 mph
EF3: 136 to 165 mph
EF4: 166 to 200 mph
EF5: More than 200 mph, Sometimes 200 to 231 mph is used.

Relation between scales[edit]

There is a very close relation with the Beaufort scale, Fujita scale, and the Mach scale. B12 (Hurricane) on the Beaufort scale is equal to F1, and F12 (however, only until F5 is used) is equal to Mach 1 at -3 C. Also, B12 equals to Category 1 in the Saffir-Simpson scale. Also, B8 = Tropical Storm = about F0.

How to find Fujita Scale: V= 14.1*(F+2)^(3/2) mph = 6.30*(F+2)^(3/2) m/s
Example: To find the lower limit of F1.
V = 14.1*3^1.5 = about 73.27 in mph - Rounded to ones place: 73
V = 6.30*3^1.5 = about 32.73576 in m/s - Rounded to ones place: 33
Actual value: 73 mph, 33 m/s
You should use mph for actual values, but for convenience for people from other countries, m/s is given here: .

Lower limits of each category of
the Fujita scale[edit]

F0 : 39.88082 = 40 mph
F1 : 73.26575 = 73 mph
F2 : 112.8 = 113 mph
F3 : 157.64279 = 158 mph
F4 : 207.22683 = 207 mph
F5 : 261.13565 = 261 mph
- From F6, it is not official
F6 : 319.04658 = 319 mph
F7 : 380.7 = 381 mph
F8 : 445.88115 = 446 mph
F9 : 514.40851 = 514 mph
F10: 586.12599 = 586 mph
F11: 660.89755 = 661 mph
- F11 is a little inaccurate. The actual value is Mach 0.9 (-3 C), which equals 663.76611 = 664 mph
F12: 738.60317 = 739 mph
- F12 is also a little inaccurate. The actual value is Mach 1 (-3 C), which equals 737.5179 = 738 mph