In May 2011, the
Maryland Department of Health and Mental Hygiene developed the state’s first
Extreme Heat Plan, reducing the number of deaths in Maryland and leading the
National Weather Service to change their Heat Advisory criteria in Maryland.
A pairing of
temperature data and surveillance reports found a trend in the number of
heat-related emergency department visits and deaths during extreme heat. When
temperatures rose above a 105°F Heat Index (how hot it feels when relative humidity is combined with air temperature), heat-related illness and death
significantly increased.
These findings led
to the creation of the Maryland Department of Health and Mental Hygiene Extreme
Heat Plan. The plan initiates actions during pre-summer, pre-event, heat
advisory, heat warning, complex heat emergency, and post-summer.
Starting in April of
each year, the Department of Health and Mental Hygiene monitors temperatures,
National Weather Service advisories, and deaths related to heat. Educational
materials are released to the public and local health departments to raise awareness
about heat emergencies. Maryland 2-1-1, an information hotline, also provides
callers with information about cooling centers.
Heat not only
affects individuals, but also health care facilities. In June 29, 2012, a
fast-moving band of thunderstorms, called a Derecho, caused widespread wind
damage and power outages. These power outages affected dozens of vulnerable
facilities, such as nursing homes, assisted living facilities, in-patient
hospices, and dialysis centers. Emailing Excel spreadsheets between facilities became
unwieldy and required significant staff time. In response, a real-time facility
tracking tool was developed to monitor power status for these vulnerable
facilities. This system was tested during Superstorm Sandy in October 2012 and
future summer seasons, lessening the impact of heat exposure risk due to power
failure.
Because of these actions by the Maryland
Department of Health and Mental Hygiene, heat-related emergency department
visits in Maryland decreased by 27 percent and deaths decreased by 50 percent
between 2011 and 2013.