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Severe Weather

Severe Weather. Hurricanes and Nor’easters. Hurricane Fran. Nor’easter:“The Perfect Storm”. Hurricanes Tropical Low Pressure Originate in tropics Originate over the ocean and move onshore Hundreds of miles wide Winds 74+ mph Winds may exceed 140mph. Nor’easters Mid-latitude Lows

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Severe Weather

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  1. Severe Weather Hurricanes and Nor’easters

  2. Hurricane Fran

  3. Nor’easter:“The Perfect Storm”

  4. Hurricanes Tropical Low Pressure Originate in tropics Originate over the ocean and move onshore Hundreds of miles wide Winds 74+ mph Winds may exceed 140mph Nor’easters Mid-latitude Lows Originate in mid-latitudes Usually originate on land and move offshore Hundreds of miles wide Winds generally under 74 mph Comparison ofHurricanes and Nor’easters

  5. Hurricane Floyd – at sea

  6. Hurricane Floyd comes ashore

  7. Remnants of Floyd move North

  8. The “Perfect Storm”

  9. Effects of Severe Storms • High winds • Heavy precipitation • Rain with Hurricanes • Snow or rain with Nor’easters • Inland Flooding • Coastal Erosion – damage or loss of beaches from high waves • Storm Surge (coastal flooding and wave damage)

  10. Coastal Erosion

  11. Coastal Erosion

  12. Coastal Erosion

  13. Storm Surge

  14. Storm Surge – Front Right Quadrant

  15. Nassau County – no storm

  16. Nassau County – Category 1 Hurricane Storm Surge

  17. Nassau County – Category 2 Hurricane Storm Surge

  18. Nassau County – Category 3 Hurricane Storm Surge

  19. Nassau County – Category 4 Hurricane Storm Surge

  20. Suffolk County – no storm

  21. Suffolk County – Category 1 Hurricane Storm Surge

  22. Suffolk County – Category 2 Hurricane Storm Surge

  23. Suffolk County – Category 3 Hurricane Storm Surge

  24. Suffolk County – Category 4 Hurricane Storm Surge

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