How far inland did Katrina storm surge go?
Katrina’s powerful right-front quadrant passed over the west and central Mississippi coast, causing a powerful 27-foot (8.2 m) storm surge, which penetrated 6 miles (10 km) inland in many areas and up to 12 miles (19 km) inland along bays and rivers; in some areas, the surge crossed Interstate 10 for several miles.
Can storm surge happen inland?
Storm surge is an abnormal rise of water generated by a storm, over and above the predicted astronomical tide. Storm surge can penetrate well inland from the coastline. During Hurricane Ike, the surge moved inland nearly 30 miles in some locations in southeastern Texas and southwestern Louisiana.
How far inland is safe from storm surge?
Storm surge effects probably only less than 5 miles inland (main risk drowning), high winds could potentially reach 500 miles or more inland (main risk would be flying debris, falling trees/powerlines, and potential building damages).
What is the highest storm surge ever recorded?
The all-time record for highest U.S. storm surge is Hurricane Katrina’s 27.8 feet in Pass Christian, Mississippi in 2005 (measured from a “still water” mark found inside a building where waves couldn’t reach).
How far inland will a 20 ft storm surge go?
Storm surge can reach heights of more than 12 m (40 ft) near the center of a Category 5 hurricane, and fan out across several hundred miles of coastline, gradually diminishing away from the hurricane’s center. Coastal flooding can reach far inland, tens of miles from the shoreline.
What was the largest storm surge in history?
Globally, the highest storm surge ever is reported in northern Australia in 1899 during a cyclone. Although the exact height is still uncertain, it is reported to have been in excess of 40 feet. For details see World Storm Surge Records.
Why is storm surge so dangerous?
Although meteorological surveys alert about hurricanes or severe storms, in the areas where the risk of coastal flooding is particularly high, there are specific storm surge warnings. For mainland areas, storm surge is more of a threat when the storm strikes land from seaward, rather than approaching from landward.
What is the best way to avoid impacts of a disaster caused by a storm surge?
If a storm surge is forecast
- Check supplies including medications, radio, flashlight and batteries.
- You may have to evacuate. Keep your emergency kit close at hand.
- Make sure the basement windows are closed.
- Fuel your car. If evacuation becomes necessary, it will be hard to stop for gas.
Which side of a hurricane has the highest storm surge?
The northern eye wall typically has the strongest winds. Also on the northern side of the storm is where you find the highest storm surge because of the counter clockwise circulation.
What is the storm surge of a category 4 hurricane?
Category 4 hurricanes can produce a storm surge 10 to 15 feet high that can push far inland, often destroying everything along the coast and flooding low-lying areas well ashore.
How far inland should you evacuate?
Plan a safe evacuation route that will take you 20-50 miles inland. Contact your local emergency management office or Red Cross chapter and ask for the community preparedness plan.
What causes a 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. A storm surge is primarily caused by the relationship between the winds and the ocean’s surface.