Extreme Heat Events Climate Change Training Module. Extreme Heat Events, Climate Change and Public Health. Minnesota Climate and Health Program Minnesota Department of Health Environmental Impacts Analysis Unit October 2012. 625 Robert Street North PO Box 64975 St. Paul, MN 55164-0975.
Climate Change Training Module
Extreme Heat Events, Climate Change and Public Health
Minnesota Climate and Health Program
Minnesota Department of Health
Environmental Impacts Analysis Unit
625 Robert Street North
PO Box 64975
St. Paul, MN 55164-0975
MDH developed this presentation based on scientific research published in peer-reviewed journals. References for information can be found in the relevant slides and/or at the end of the presentation.
Source: Dr. Mark Seeley, Climatologist, University of Minnesota
On average, the total precipitation in the state has increased since the Dust Bowl era of the 1930s.
Criteria shift depending upon:
Greater MN Extreme Heat Warning System:
Source: NWS, 2011
Ramsey/Hennepin County Extreme Heat Warning System: Heat Advisory
Source: NWS, 2011
July 19, 2011:
temperature of 88°F
with 93°F air temp
Red denotes dewpoint driven
1883, 1894, 1901, 1910, 1917, 1921, 1931, 1933, 1934, 1936, 1937, 1947, 1948, 1949, 1955, 1957, 1959, 1964, 1976, 1977, 1983, 1988, 1995,1999, 2001, 2005, 2006, 2007, 2010
Effect is proportional to the size of the city – but all cities, large and small, have them
On average, a city with 1M people can have a 2-6°F UHI
On clear, calm nights, this can be as high as 20+°F
~30% increase in
Source: EPA, 2008
Image from NASA
on a rooftop
on roof surface through
shade and evapotrans-
Target Center Roof in Minneapolis
Thermal image of
New York City
New York City
Images from NASA
Extreme heat events can cause:
people in America died
from extreme heat than
from floods, hurricanes,
lightning, tornadoes, and
caused more than 600 heat-
related deaths over 5 days
(Hurricane Katrina: 1,833 confirmed deaths, World Trade Center: 2,726 deaths)
medications that hinder thermo-
regulation or cause dehydration
Source: Adcock et al, 2000 – CDC MMWR
or family ties
Six key steps for responding to extreme heat events:
A heat response plan should be developed before an extreme heat event.
Heat response plan may be added as annex to local all-hazard plan.
Response Plan Critical Elements:
This work was supported by cooperative agreement 5UE1EH000738 from the Centers for Disease Control and Prevention
Special thanks to the following people for their contributions to the creation of this training module:
Pam Blixt, Minneapolis Health & Family Support
Geri Maki, MDH
Myrlah Olson, MDH
Dr. Mark Seeley, University of Minnesota
Don Sheldrew, MDH
Dr. Peter Snyder, University of Minnesota
Dr. Tracy Twine, University of Minnesota
Contact the Minnesota Climate and Health Program:
October 10, 2012
Adcock MP, Bines WH, Smith FW (2000), “Heat-Related Illnesses, Deaths, and Risk Factors – Cincinnati and Dayton, Ohio, 1999, and United States, 1979-1997,”
Morbidity and Mortality Weekly Report (MMWR), Centers for Disease Control and Prevention. Available online: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4921a3.htm.
Anderson GB and Bell ML (2011), “Heat waves in the United States: Mortality risk during heat waves and effect modification by heat wave characteristics in 43 US communities,” Environmental Health Perspectives, 119(2), 210.
Centers for Disease Control and Prevention (CDC) (2009), “Extreme Heat: A Prevention Guide to Promote Your Personal Health and Safety,” Available online: http://www.bt.cdc.gov/disasters/extremeheat/heat_guide.asp
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IPCC (2007), “Climate Change 2007: The Physical Science Basis.” Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon S, Qin D, Manning M, Chen Z, Marquis M, Averyt KB, Tignor M and Miller HL (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 996 pp.
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Larsen, Janet (2006), “Setting the Record Straight: More than 52,000 Europeans Died from Heat in Summer 2003,” Plan B Updates, Earth Policy Institute. Available online: http://www.earth-policy.org/plan_b_updates/2006/update56
Matt Friedlein, Meteorologist, National Weather Service - Twin Cities/Chanhassen, MN, Personal communication, August 29, 2011
Michael Timlin, Regional Climatologist, Midwestern Regional Climate Center. Retrieved on June 23, 2011 from http://mcc.sws.uiuc.edu/climate_midwest/mwclimate_change.htm
MN State Climatology Office (2011a), “Record Dew Point Temperature in the Twin Cities: July 19, 2011,” Available online: http://climate.umn.edu/doc/journal/dew_point110719.htm
MN State Climatology Office (2011b), “Record Dew Point Temperature for Minnesota,” Available online: http://climate.umn.edu/doc/journal/record_state_dew_point.htm,
National Parks Service (NPS) (2010), “What is Climate Change?” Available online: http://www.nps.gov/goga/naturescience/climate-change-causes.htm
(NWS, 2009a) National Oceanic and Atmospheric Administration’s National Weather Service (June 25, 2009). Retrieved on June 22,2011 from http://nws.noaa.gov/glossary/index.php?letter=h
(NWS, 2009b) National Oceanic and Atmospheric Administration’s National Weather Service (Modified June 25, 2009). Retrieved on June 22, 2011 from http://www.epa.gov/heatisld/resources/glossary.htm#u
(NWS, 2010) Image from National Oceanic and Atmospheric Administration’s National Weather Service (Modified August 19, 2010). Retrieved on June 23, 2011 from http://www.nws.noaa.gov/om/heat/index.shtml
(NWS, 2010b) Service area map for the six National Weather Service stations serving Minnesota and Western Wisconsin, http://www.crh.noaa.gov/images/mpx/nwsmn_wi_responsibility.gif
(NWS, 2011) National Weather Service Weather Forecast Office, Twin Cities MN, http://www.crh.noaa.gov/mpx/?n=wwadef, Page last modified: October 31st 2011 7:44 PM, Retrieved on November 4, 2011
(NWS, 2011b) National Weather Service Weather Forecast Office. Grand Forks, ND. “Hottest Place On Earth?” July 2011. Available online: http://www.crh.noaa.gov/news/display_cmsstory.php?wfo=fgf&storyid=71074&source=2
(NWS, 2012) NOAA/NWS Climate Prediction Center. 2012. US Seasonal Drought Outlook. April 5 – June 30, 2012. Available online: http://www.cpc.ncep.noaa.gov/products/expert_assessment/seasonal_drought.html
Russian City Official, EvegenyaSmirnova (as reported by Agence France Presse [AFP]) says nearly 11,000 more people died in Moscow during July and August 2010 than at the same time in 2009.
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