Countywide All Natural Hazards Mitigation Plan Cuyahoga County Executive Ed FitzGerald Cuyahoga County Office of Emergency Management Cuyahoga County, Ohio Draft for 2011 Plan Update TABLE OF CONTENTS 1.0 FORWARD ................................................................................................................ 1 1.1 PARTICIPATING JURISDICTIONS ........................................................................................... 2 1.2 CUYAHOGA COUNTY NATURAL DISASTER BACKGROUND .................................................... 3 2.0 COUNTY INFORMATION ......................................................................................... 4 2.1 CUYAHOGA COUNTY PROFILE AND COMMUNITY INFORMATION ........................................... 4 2.1.1 CLEVELAND METROPARKS .............................................................................................. 5 2.1.2 WATERSHED ORGANIZATIONS ......................................................................................... 5 2.2 CENSUS INFORMATION ...................................................................................................... 8 2.3 CUYAHOGA COUNTY LAND USE AND FUTURE LAND USE .................................................... 11 2.4 OTHER EXISTING PLANS ................................................................................................... 14 3.0 ALL NATURAL HAZARDS MITIGATION PLANNING PROCESS ............................... 14 3.1 MISSION STATEMENT ........................................................................................................ 15 3.2 MITIGATION CORE GROUP ............................................................................................. 15 3.3.1 ADJACENT COUNTY NOTIFICATION ............................................................................... 17 3.3.2 PUBLIC NOTIFICATION PROCESS AND INVOLVEMENT ....................................................... 17 3.4 MEETINGS ...................................................................................................................... 18 3.4.1 MEETING 1- INTRODUCTION TO THE 2011 PLAN UPDATE .................................................. 18 3.4.2 MEETING 2 - REVIEW OF PLAN’S ORIGINAL AND UPDATED INFORMATION ......................... 18 3.4.3 MEETING 3 - HAZARD RANKING AND ACTION PRIORITIZATION ......................................... 18 3.5 FINALIZATION AND ADOPTION.......................................................................................... 19 3.6 HAZARD AND VULNERABILITY ASSESSMENT MATRIX DEVELOPMENT ....................................... 20 3.6.1 HAZARD AND VULNERABILITY ASSESSMENT MATRIX .......................................................... 21 3.7 HAZARD PROBLEM STATEMENTS AND OVERALL GOALS ...................................................... 22 4.0 STATE OF NATURAL DISASTERS AND HAZARD ASSESSMENT FOR CUYAHOGA COUNTY ........................................................................................................................ 26 4.1 INITIAL HAZARD DETERMINATION FOR CUYAHOGA COUNTY ............................................... 26 4.2 SEVERE STORMS .............................................................................................................. 27 4.2.1 SEVERE THUNDERSTORM WARNINGS AND WATCHES ....................................................... 28 4.2.2 SIGNIFICANT EVENTS .................................................................................................... 28 4.2.3 CUYAHOGA SEVERE WEATHER MITIGATION EFFORTS ....................................................... 30 4.2.4 CRITICAL FACILITIES AND INFRASTRUCTURE ...................................................................... 30 4.2.5 CURRENT DEVELOPMENT TRENDS .................................................................................. 31 4.2.6 HAZARD ASSESSMENT AND VULNERABILITY ANALYSES / POTENTIAL DOLLARS LOST .............. 31 Actions for Severe Storms .................................................................................... 31 4.3 FLOODING ..................................................................................................................... 33 4.3.1 FLOODING WARNINGS AND WATCHES .......................................................................... 33 4.3.2 SIGNIFICANT EVENTS .................................................................................................... 33 4.3.3 FLASH FLOODING ........................................................................................................ 35 Countywide All Natural Hazards Mitigation Plan Cuyahoga County, Ohio ii 4.3.4 RIVER FLOODING......................................................................................................... 35 4.3.5 NON-FLOOD ZONE FLOODING ..................................................................................... 36 4.3.6 CRITICAL FACILITIES ..................................................................................................... 38 4.3.7 INFRASTRUCTURE .......................................................................................................... 40 4.3.8 REPETITIVE LOSS FLOODING .......................................................................................... 44 4.3.9 CUYAHOGA COUNTY FLOOD MITIGATION EFFORTS ........................................................ 47 4.3.10 CURRENT DEVELOPMENT TRENDS ................................................................................ 47 4.3.11 HAZARD ASSESSMENT AND VULNERABILITY ANALYSES/ POTENTIAL DOLLARS LOST ............ 48 4.3.12 ACTIONS FOR FLOODING ........................................................................................... 52 4.4 SEVERE WINTER WEATHER ................................................................................................ 55 4.4.1 SEVERE WINTER WEATHER WARNINGS AND WATCHES ..................................................... 55 4.4.2 SIGNIFICANT EVENTS .................................................................................................... 55 4.4.3 BLIZZARDS ................................................................................................................... 57 4.4.4 ICE STORMS ................................................................................................................ 57 4.4.5 WIND CHILL ................................................................................................................ 57 4.4.6 CUYAHOGA COUNTY SEVERE WINTER WEATHER MITIGATION EFFORTS ............................. 58 4.4.7 CRITICAL FACILITIES AND INFRASTRUCTURE ...................................................................... 58 4.4.8 CURRENT DEVELOPMENT TRENDS .................................................................................. 58 4.4.9 HAZARD ASSESSMENT AND VULNERABILITY ANALYSES/ POTENTIAL DOLLARS LOST .............. 58 4.4.10 ACTION FOR SEVERE WINTER WEATHER ....................................................................... 59 4.5 TORNADOS .................................................................................................................... 59 The Enhanced Fujita Tornado Scale ................................................................... 61 4.5.1 CUYAHOGA COUNTY EVENTS ....................................................................................... 62 4.5.2 TORNADO PATH MAP .................................................................................................. 62 4.5.3 TORNADO MITIGATION EFFORTS .................................................................................... 65 4.5.4 CURRENT DEVELOPMENT TRENDS .................................................................................. 65 4.5.5 HAZARD ASSESSMENT AND VULNERABILITY ANALYSES/ POTENTIAL DOLLARS LOST .............. 65 4.5.6 ACTIONS FOR TORNADOES ........................................................................................... 65 4.6 TEMPERATURE EXTREMES .................................................................................................. 66 4.6.1 EXTREME HEAT ............................................................................................................ 66 4.6.2 EXTREME COLD ........................................................................................................... 67 4.6.3 CUYAHOGA COUNTY TEMPERATURE EXTREMES MITIGATION EFFORTS ................................ 67 4.6.4 CURRENT DEVELOPMENT TRENDS .................................................................................. 68 4.6.5 CRITICAL FACILITIES AND INFRASTRUCTURE ...................................................................... 68 4.6.6 HAZARD AND VULNERABILITY ASSESSMENT/ POTENTIAL DOLLARS LOST .............................. 68 4.6.7 ACTIONS FOR TEMPERATURE EXTREMES .......................................................................... 68 4.7 EROSION AND LANDSLIDES .............................................................................................. 69 4.7.1 STREAMBANK EROSION ................................................................................................ 69 4.7.2 COASTAL EROSION...................................................................................................... 73 Cuyahoga County Coastal Erosion Statistics .................................................... 73 4.7.3 MITIGATION EFFORTS ................................................................................................... 74 Northeast Ohio Regional Sewer District Stormwater Management Program 74 Ohio Coastal Management Program 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