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Sherburne County Multi -Hazard Mitigation Plan, 2020 VULNERABLE POPULATIONS There has been an increase In the older adult populartlon. Extreme weather events cause a range of health impacts and disruptions that vary across population group; The vulnerabkty of a group is a function of its sensitivity to a harard, exposure to nsks, and capacity for responding or coping with the impacts. Children and older adults are often identified as groups vulnerable to climate change: threats, including extreme weather and natural disasters. For example, physiologically these groups have a louver capacity to tolerate extreme heat and are often dependent on others for transportation to cooling centers These groups are atso often critically dependent on others during a disaster, such as needing help to evacuate during a flood or wildfire, or to find alternative housing if displaced. Planning for the specific needs of vulnerable populations strengthens, local efforts to reduce the impact of extreme weather -related events. Population trend data provided here for HSEM Reg eon 6 are intended to highlight the changes in two key demographic groups for the region, but planners and managers should also consider future changes in other populations of concern. such as those with low incomes, immigrant grc-.)ps ind-eer,*-is peoules pe^ions with disabilities, or vulnerable occupational grr aps (such as outdoor workers): • 2015 050 1 clian a 015 20!io Chan 1.274,638 1.616.464 +27�5 585,000 1 1.039.608 +78':e The f0ow-ng case study is intended to illustrate the links between climate and weather and natural disasters, Acting as a "fomsmg event," the case study demonstrates how a previous weather -related event (i.e., drought and extreme heat] impacted Lmportant economic drivers. environmental resources, and population health. Then. the Climate Projection Data section compares weather data from the case study with baseline and projected weather data to show the possibilities of future disaster events. This case study highlights the relevancy of climate projection data for understanding future climate and weather risks m Mmritsota. EVENT: EXTREME HEAT DATE: JULY 2011 The Extreme Heat Wave of 2011 impacted all Region 6 coumies in addition to the rest of Minnesota and much of the Midwest. putting nearly 141 million Americans under some level of heat advisory or warning. By far, the most intense heat and humidity records were recorded In Minnesota, where Monneapolrs experienced Its most humid day an record and tied the all-time record for a heat index (1 i9 degrees)_ The magnitude and persistence of high dew point temperaturex and heat index values led rreteoraiagista to label the event a "humidity stofm". In the metro area temperatures soared both day and night — two days. hit a maximum 100 degrees and 12 more reached 90 degrees, whale a record of 80 degrees was set for nighttime laws. Due to the urban heat island effect, temperatures in the metre, region are often higher compared to less urban surrounding areas, usually an average of 2 degrees higher. However, during heat waves this temperature difference can spike to as much as 9 degrees. ultraviolet (UV) monitoring showed dangerously elevated levels of radiation during the heat wave. which rate lead tact acute and chronic effects on the skin, eyes, and immune system, anduding skin cancer and cataracts. The average UV index for July 2011 (9 71 was the highest for any July since 1994, The UV index for days during peak heat intensity were above 10, a level associated with a very high risk of serious health effects. 51.. , , Page I L - 6