Hurricane Storm Surge Vulnerability Bob Humple Assistant Director - PowerPoint PPT Presentation

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Hurricane Storm Surge Vulnerability Bob Humple Assistant Director Broward County Emergency Management Division The Hazards of a Hurricane 1. Wind 2. Rainfall and Flooding 3. Storm Surge* 4. Tornadoes * Storm Surge kills more people than

Hurricane Storm Surge Vulnerability Bob Humple Assistant Director Broward County Emergency Management Division
The Hazards of a Hurricane 1. Wind 2. Rainfall and Flooding 3. Storm Surge* 4. Tornadoes * Storm Surge kills more people than any other hurricane peril
Factors Affecting Storm Surge • Intensity • Central pressure • Forward speed • Size • Angle of approach • Width and slope of continental shelf • Local coastal features
Storm Surge vs Storm Tide
Top 5 Most Vulnerable U.S. Cities • Tampa/St. Petersburg • Miami • New Orleans • Norfolk/ Virginia Beach • Houston/Galveston
Katrina 2005
Storm Surge Modeling
SLOSH Model
State-Wide Regional Evacuation Study
State-Wide Regional Evacuation Study
Evacuation Zones
Base Scenarios
Clearance Times
Watches and Warnings • Tropical Storm Watch – Tropical Storm conditions are possible within 48 hours. • Tropical Storm Warning – Tropical Storm conditions are expected within 36 hours. • Hurricane Watch – Hurricane Conditions are possible and the watch is issued 48 hours in advance of the anticipated onset of tropical storm-force winds. • Hurricane Warning – Hurricane Conditions are expected and the warning is issued 36 hours in advance of the anticipated onset of tropical storm- force winds.
P-Surge (probabilistic)
Storm Action Lead Time (Salt)
Questions Questions? Br Browar oward County d County Emergency Mana Emergency Management Division gement Division (954) (95 4) 83 831-3900 3900 Bob Bob H Hump umple le rhu rhumple@bro mple@broward.org ward.org (95 (954) 4) 83 831-3919 3919 www www.bro .broward ward.org .org/eme /emerge rgenc ncy ww www. w.bro broward.org/hu ward.org/hurri rrica cane ne

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