Colorado River Management Arizona Department of Water Resources May - - PowerPoint PPT Presentation

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Feb 22, 2023 474 likes •560 views

Jeff Inwood Colorado River Management Arizona Department of Water Resources May 9, 2017 COLORADO RIVER SYSTEM 36% WYOMING Fontenelle RESERVOIR STATUS 82% TOTAL SYSTEM CONTENTS 51% or 30.454 MAF Flaming Gorge As of May 1, 2017 UTAH

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Jeff Inwood Colorado River Management Arizona Department of Water Resources May 9, 2017

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TOTAL SYSTEM CONTENTS – 51% or 30.454 MAF

36% UTAH 82%

Fontenelle Flaming Gorge

WYOMING COLORADO NEW MEXICO

ARIZONA

CALIFORNIA

Blue Mesa

79% 93% 94%

Navajo

Morrow Point

3,652 ft, WY 2017 Equalization Level NEVADA

COLORADO RIVER SYSTEM RESERVOIR STATUS As of May 1, 2017

3,604.7 ft

Lake Powell

50% 12.176 MAF

Lake Mead

40% 10.404 MAF 1,084.7 ft

1,075 ft, First Tier Shortage

Data Source: United States Bureau of Reclamation

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Source: Colorado Basin River Forecast Center

COLORADO RIVER BASIN FORECAST CENTER CURRENT SNOWPACK

2017 2011 2016 Median

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COLORADO RIVER BASIN FORECAST CENTER INFLOW FORECAST COMPARISON

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LAKE MEAD END OF ON MONTH ELEVATIONS April 2017 24-Month Study Projections

Source: United States Bureau of Reclamation

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Probabilities of Lower Colorado River Basin Shortage

U.S. Bureau of Reclamation MTOM/CRSS Model Run – April 2017 (N = Negligible) U.S. Bureau of Reclamation CRSS Model Run – August 2016

2017 2018 2019 2020 2021

Probability of any level of shortage (Mead ≤ 1,075 ft.)

N 31 32 34

1st level shortage (Mead ≤ 1,075 and ≥1,050 ft)

31 31 26

2nd level shortage (Mead <1,050 and ≥1,025 ft)

1 8

3rd level shortage (Mead <1,025)

<1

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