When was the Saxby Gale?

October 4, 1869 – October 5, 1869
1869 Saxby Gale/Dates

What causes a storm surge?

Storm surge is caused primarily by the strong winds in a hurricane or tropical storm. The low pressure of the storm has minimal contribution! The wind circulation around the eye of a hurricane (left above) blows on the ocean surface and produces a vertical circulation in the ocean (right above).

What type of hazard is storm surge?

A storm surge is a rise in sea level that occurs during tropical cyclones, intense storms also known as typhoons or hurricanes. The storms produce strong winds that push the water into shore, which can lead to flooding. This makes storm surges very dangerous for coastal regions.

Why is a storm surge the major hazard associated with tropical storms?

This is because tropical cyclones bring with them: Storm surges – these are huge surges of high water up to 3 metres in height that sweep inland from the sea, flooding low-lying areas. This can cause short-term flash flooding , as well as slower river flooding as the cyclone moves inland.

What are the types of storm surge?

There are two major types of storms, tropical and extratropical storms. In principle there are more, such as polar lows, cold surges, and medicanes (Mediterranean hurricanes), which regionally play a role with storm surges, but this chapter is limited to the two main types.

How are storm surges measured?

Surge can be measured directly at coastal tidal stations as the difference between the forecast tide and the observed rise of water. Another method of measuring surge is by the deployment of pressure transducers along the coastline just ahead of an approaching tropical cyclone.

What are the differences between storm surge and storm tide?

Storm tide is the actual sea level as influenced by a weather disturbance. Storm surge is the difference between the actual water level under the influence of a meteorological disturbance (storm tide) and the level which would have been attained in the absense of the meteorological disturbance (e.g. astronomical tide).

Which of the following is the best description of a storm surge?

Which of the following best describes “storm surge”? A rise is sea level mainly due to wind blown ocean water that inundates coastal areas with successively higher waves confined mainly in the eye wall. What is the greatest threat to human lives from a slow moving hurricane?

What is the difference between tides and surges?

Storm surge is the abnormal rise in seawater level during a storm, measured as the height of the water above the normal predicted astronomical tide. Storm tide is the total observed seawater level during a storm, resulting from the combination of storm surge and the astronomical tide.

What was Katrina’s storm surge?

Katrina’s eye was passing over the Pearl River on the Louisiana-Mississippi border. WSR-88D radar loop as the eye of Hurricane Katrina moved over the region. A very large storm surge ranging from 10 to 28 feet impacted much of the coastal areas across Southeast Louisiana and Coastal Mississippi.