17 terms

Severe Weather-Hurricanes

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tropical disturbance
1st stage of hurricane formation. A cluster of thunderstorms over water with winds less than 24 miles per hour.
tropical depression
2nd stage of hurricane formation. Thunderstorm over water with little rotation, rain, and wind speeds between 25 and 39 mph.
tropical storm
3rd stage of hurricane formation. Storm over water with distinct rotation, heavy rain, and wind speeds between 40 and 74 miles per hour.
hurricane
4th stage of hurricane formation. A rotating tropical storm with heavy rain and winds of 74 miles per hour or higher.
eye
the center of a hurricane where there is no rain or wind
eye wall
The strongest winds of a hurricane surrounding the eye
feeder bands
spirialing lines of thunderstorms which extend outward from a hurricane's center
Saffir-Simpson Scale
chart showing descriptions of the 5 categories of hurricanes, their wind speeds, and the amount of damage each can cause
hurricane watch
hurricane conditions are expected in an area in 48 hours
hurricane warning
hurricane conditions are expected in an area in 36 hours
storm surge
a wall of water that moves ashore when a hurricane strikes land
Atlantic Ocean hurricane season
June 1 through November 30
The time of year when conditions are favorable for hurricane formation.
evacuation
the act of moving people out of danger
voluntary evacuation
given when leaving an area about to be affected by a hurricane would be best, but you can stay if you want
mandatory evacuation
given when you HAVE to leave an area about to be affected by a hurricane, whether you want to or not
hurricane evacuation route
designated highways used to help people leave an area about to be affected by a hurricane
infrastructure
the basic facilities that are necessary for an area to function like electricity, water, gas, and roads and bridges

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