Great Lakes Weather - Historical Weather and Weather Links Page

High CAPE and Summertime Heat Index



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This page is here to show high CAPE soundings and the correlation with storm reports. I have highlighted soundings from mainly the northern Midwest, but some other spots. In some cases, the sounding graphic has been modified for the surface temperature and dew point. This is shown with the light green curve. The lifted index maps actually show the lifted index for the surface temperature/surface dew point. The heat index maps are for the exact time the soundings were launched (1 hour before) - note on some of these maps, heat indices were up to 120 degrees.

August 28 1990
Peoria Illinois sounding
August 28 storm reports

July 13, 1995 00z
DVN sounding - CAPE of 6585 J/kg, modified to be higher
MPX sounding - 6700 J/kg of CAPE
Lifted index

July 15, 1995 00z
DAY sounding - 4000 CAPE in Ohio
GRB sounding
DTX sounding
ILX sounding
MPX sounding
Lifted index - note the -13 at APG (north of Baltimore) is a bit suspicious on the actual sounding.
Storm Reports from this period of time

June 25, 1998 00z
ILN sounding
Lifted index - note the -23 at DTX is based on bad data

June 26, 1998 00z
ILN sounding
Lifted index
Storm Reports from this period of time

July 29, 1999 00z
DVN sounding
ABR sounding
Lifted index
Heat index

July 30, 1999 00z
ILX sounding
DVN sounding
ABR sounding
Lifted index
Heat index

July 31, 1999 00z
ILX sounding
DVN sounding
GRB sounding - at least 7200 CAPE - highest CAPE in Wisconsin history?
OAX sounding - around 7000 CAPE
Lifted index
Heat index
Storm Reports from this period of time


July 21, 2002 00z
MPX
MPX (SPC)
Lifted index
Heat index

July 22, 2002 00z
ILX
ILX (SPC)
APX
APX (SPC)
Lifted index
Heat index
Storm Reports from this period of time

August 7, 2005
DVN
Storm reports from August 8th

May 28, 2006 00z
ILX (SPC)
ILX (Plymouth)
Lifted Index Map
Heat Index Map - Note: 307 K is 93 F
Storm Reports from May 27

May 29, 2006
DTX (SPC)
DTX
APX (SPC)
APX
MPX (SPC)
MPX
Lifted Index Map
Heat Index Map - Note: 311 K is 100 F
Storm Reports from May 28
Storm Reports from May 29

July 16, 2006
MPX (Plymouth)
MPX (SPC)
Storm Reports from July 16
Storm Reports from July 17

July 20, 2006
ILX (SPC)
Storm Reports from July 20
Storm Reports from July 21

July 26, 2006
ILX (SPC)
Storm Reports from July 26
Storm Reports from July 27

July 30, 2006
Midwest Heat Index at 22z


July 31, 2006
ILX (SPC)
MPX (SPC)
Midwest Heat Index at 22z
Storm Reports from July 31
Storm Reports from August 1

August 2, 2006
BNA (SPC)
BNA (Plymouth)
Lifted Index Map
Storm Reports from August 2
Storm Reports from August 3

May 29, 2008
OAX (SPC)
OAX (Plymouth)
Lifted Index Map (SPC)
Storm Reports from May 29
Storm Reports from May 30

June 25, 2008
OAX (SPC)
OAX (Plymouth)
Lifted Index Map (SPC)
Storm Reports from June 25
Storm Reports from June 26

July 20, 2008
ILX (SPC)
ILX (Plymouth)
Lifted Index Map (SPC)
Storm Reports from July 20
Storm Reports from July 21

June 18, 2009
DVN (SPC)
DVN (Plymouth)
ILX (SPC)
ILX (Plymouth)
Lifted Index Map (SPC)
Storm Reports from June 18
Storm Reports from June 19

June 23, 2009
DVN (SPC)
DVN (Plymouth)
Lifted Index Map (SPC)
Storm Reports from June 23
Storm Reports from June 24

June 25, 2009
DVN (SPC)
DVN (Plymouth)
DTX (SPC)
DTX (Dupage)
Lifted Index Map (SPC)
Lifted Index Map at 18z (SPC)
Storm Reports from June 25
Storm Reports from June 26

June 21, 2010
ILX
Storm Reports from June 21

May 10, 2011
MPX
Storm Reports from May 10

May 28, 2011
OUN
Storm Reports from May 28

June 7, 2011
DTX, June 8, 00z, 4381 J/kg
Heat indices, June 7, 21z


June 30 - July 2, 2011
OAX, July 1, 00z, 5390 J/kg
MPX, July 1, 00z, 5419 J/kg
Heat indices, June 30, 22z
June 30, 23z RUC CAPE analysis- 6000 to 8000 J/kg
GRB, July 2, 00z, 4960 J/kg
DVN July 2, 00z, 5397 J/kg
MPX, July 2, 00z    unknown CAPE due to lack of high-altitude sounding information.
Heat indices, July 1, 22z
ILX, July 3, 00z, 5053 J/kg
Heat indices, July 2, 22z

June 28, 2012
DVN
MUCAPE from SPC Mesoanalysis at 00z June 29
Storm Reports from June 29
heat index at 22z
Temperatures at 22z


May 31, 2013
OUN
This sounding was near the El Reno and Oklahoma City tornadoes

June 20, 2013
OAX
Storm Reports from June 20

May 10, 2016
Fort Worth
Heat Indices at 22z, May 10 2016

Purpose of this web site

The purpose is to provide high quality information on historical storms and provide links to weather information.