---
attributes: 'Contiguous U.S., extreme precipitation, observed'
cited_by: []
contributors:
  - display_name: 'Scientist : Laura Stevens (Cooperative Institute for Climate and Satellites - NC) '
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    organization:
      country_code: US
      display_name: 'Cooperative Institute for Climate and Satellites - NC'
      identifier: cooperative-institute-climate-satellites-nc
      name: 'Cooperative Institute for Climate and Satellites - NC'
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      type: organization
      url: http://www.cicsnc.org/
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    person:
      display_name: Laura Stevens
      first_name: Laura
      id: 1101
      last_name: Stevens
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      orcid: 0000-0002-8842-702X
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      url: http://www.cicsnc.org/people/laura-stevens
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create_dt: 2013-06-24T10:41:00
description: ~
display_name: 1976ca9b-3bd4-4ae3-9189-578d9ee542f1
figures:
  - attributes: ~
    caption: 'Heavy downpours are increasing nationally, with especially large increases in the Midwest and Northeast.<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib> Despite considerable decadal-scale natural variability, indices such as this one based on 2-day precipitation totals exceeding a threshold for a 1-in-5-year occurrence exhibit a greater than normal occurrence of extreme events since 1991 in all U.S. regions except Alaska and Hawai ‘ i. Each bar represents that decade’s average, while the far right bar in each graph represents the average for the 12-year period of 2001-2012. Analysis is based on 726 long-term, quality-controlled station records. This figure is a regional expansion of the national index in Figure 2.16 of Chapter 2. (Figure source: updated from Kunkel et al. 2013<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib>).'
    chapter_identifier: appendix-climate-science-supplement
    create_dt: 2013-07-02T13:05:00
    identifier: app-extreme-precipitation
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    ordinal: 32
    report_identifier: nca3
    source_citation: 'updated from Kunkel et al. 2013<tbib>0ebef171-4903-4aa6-b436-2936da69f84e</tbib>'
    submission_dt: ~
    time_end: ~
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    title: Extreme Precipitation
    url: http://nca2014.globalchange.gov/report/appendices/climate-science-supplement/graphics/extreme-precipitation
    usage_limits: Free to use with credit to the original figure source.
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href: http://52.38.26.42:8080/image/1976ca9b-3bd4-4ae3-9189-578d9ee542f1.yaml
identifier: 1976ca9b-3bd4-4ae3-9189-578d9ee542f1
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references: []
submission_dt: ~
time_end: 2012-12-31T00:00:00
time_start: 1901-01-01T00:00:00
title: 'Extreme Precipitation Decadal Bar Graph - U.S. Average'
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