---
attributes: ~
caption: 'The map shows percent increases in the amount of precipitation falling in very heavy events (defined as the heaviest 1% of all daily events) from 1958 to 2012 for each region of the continental United States. These trends are larger than natural variations for the Northeast, Midwest, Puerto Rico, Southeast, Great Plains, and Alaska. The trends are not larger than natural variations for the Southwest, Hawai‘i, and the Northwest. The changes shown in this figure are calculated from the beginning and end points of the trends for 1958 to 2012. (Figure source: updated from Karl et al. 2009<tbib>e251f590-177e-4ba6-8ed1-6f68b5e54c8a</tbib>).'
chapter:
  description: ~
  display_name: 'Chapter 2: Our Changing Climate'
  doi: 10.7930/J0KW5CXT
  identifier: our-changing-climate
  number: 2
  report_identifier: nca3
  sort_key: 20
  title: Our Changing Climate
  url: http://nca2014.globalchange.gov/report/our-changing-climate/introduction
chapter_identifier: our-changing-climate
cited_by: []
contributors: []
create_dt: 2013-09-19T14:05:00
description: 'The map shows percent increases in the amount of precipitation falling in very heavy events (defined as the heaviest 1% of all daily events) from 1958 to 2012 for each region of the continental United States. These trends are larger than natural variations for the Northeast, Midwest, Puerto Rico, Southeast, Great Plains, and Alaska. The trends are not larger than natural variations for the Southwest, Hawai‘i, and the Northwest. The changes shown in this figure are calculated from the beginning and end points of the trends for 1958 to 2012. (Figure source: updated from Karl et al. 2009<tbib>e251f590-177e-4ba6-8ed1-6f68b5e54c8a</tbib>).'
display_name: '2.18: Observed Change in Very Heavy Precipitation'
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href: http://52.38.26.42:8080/report/nca3/chapter/our-changing-climate/figure/observed-change-in-very-heavy-precipitation-2.yaml
identifier: observed-change-in-very-heavy-precipitation-2
images:
  - attributes: 'Contiguous U.S., extreme precipitation, observed'
    create_dt: 2013-09-19T14:05:00
    description: ~
    identifier: 2a8ed68d-02b8-4290-9924-0ed6f27c452c
    lat_max: 71.441
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    submission_dt: ~
    time_end: 2012-12-31T23:59:00
    time_start: 1958-01-01T00:00:00
    title: Observed Change in Very Heavy Precipitation
    url: ~
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kindred_figures:
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lat_max: 71.441
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    uri: /reference/e251f590-177e-4ba6-8ed1-6f68b5e54c8a
report:
  display_name: 'Climate Change Impacts in the United States: The Third National Climate Assessment'
report_identifier: nca3
source_citation: 'updated from Karl et al. 2009<tbib>e251f590-177e-4ba6-8ed1-6f68b5e54c8a</tbib>'
submission_dt: ~
time_end: 2012-12-31T23:59:00
time_start: 1958-01-01T00:00:00
title: Observed Change in Very Heavy Precipitation
type: figure
uri: /report/nca3/chapter/our-changing-climate/figure/observed-change-in-very-heavy-precipitation-2
url: http://nca2014.globalchange.gov/highlights/overview/overview/graphics/observed-change-very-heavy-precipitation
usage_limits: Free to use with credit to the original figure source.