Hurricane Tiered Evacuation Bruce Sterling Chief Regional - - PowerPoint PPT Presentation

Hurricane Tiered Evacuation

Bruce Sterling Chief Regional Coordinator, Region 5 Virginia Department of Emergency Management

Methodology of Determining Hurricane Risk

Historical Approach

• SLOSH Maximum of Maximums (MOM) for Cat 1-4
• Evacuation zones developed within each category
• Zones not used to communicate evacuation message

New Approach

• SLOSH Maximum Envelope of Water (MEOW) for Cat 1-4
• Four evacuation zones developed – tied to storm track scenario
• Citizens encouraged to familiarize themselves with their zone

Cat 2 MOM Cat 2 MEOW – NE 20 MPH Cat 2 MEOW – WNW 20 MPH

B C D B C A

Storm Intensity Grouping Storm Track Directional Grouping P to N NNW to WNW Cat 1 - 2 Cat 3 Cat 4

Cat 1 Cat 2 Cat 3 Cat 4 NE NNE N NNW NW WNW

Evacuation Zone Relation to Storm Track

Cat 1 Cat 2 Cat 3 Cat 4 NE NNE N NNW NW WNW

Populations Impacted Zone A – 246,946 Zone B – 304,972 Zone C – 407,624 Zone A – 246,946 Zone D – 264,708 Zone A +B+C – 959,452 Zone A +B – 551,918 Zone A +B+C+D– 1,224,250 Cumulative Totals

Community Outreach

Questions?

Bruce Sterling bruce.sterling@vdem.virginia.gov