google_color_bg = "FFFFFF"; It took decades for Lake Powell to reach catastrophically low levels, and according to one expert . "As a result of this update, the median water year 2022 inflow forecast into Lake Powell decreased by 800,000 acre-feet," USBR stated in a press release distributed Thursday. n$L{Z. New 1991-2020 Averages being used this year. Fresh Water News is an independent, non-partisan news initiative of Water Education Colorado. In addition to the February 2023 24-Month Study based on the Most Probable inflow scenario, and in accordance with the Drought Response Operational Agreement (DROA)), Reclamation has conducted model runs in February to determine a possible range of reservoir elevations. The forecast isnt great, said Kyle Whitaker, Colorado River Manager for the Northern Colorado Water Conservancy District, one of the largest diverters of water in the headwaters region of the river. Powell was last within 2" of this elevation on Feb 11, 2023 There are currently 1,757,155,460,140 gallons of water in Lake Powell! Changes in the northeastern reaches of Lake Powell are documented in this series of natural-color images taken by the Landsat series of satellites between 1999 and 2021. U.S. Department of the Interior Bureau of Reclamation. It wasnt just the Powell number that dipped, although the amount of runoff that makes its way to Powell each year is considered a good barometer for conditions basinwide. Lake Powell water level at Wahweap Marina in September 2021 | Photo by Bureau of Reclamation, St. George News . Lukas noted that the dry soil conditions are factored into the NOAA runoff predictions from the get-go so there shouldnt necessarily be any big surprises with that particular variable. The reduction of releases from Lake Powell from 7.48 maf to 7.00 maf in water year 2022 resulted in a reduced release volume of 0.480 maf that normally would have been released from Glen Canyon Dam to Lake Mead as part of the 7.48 maf annual release volume, consistent with operations under the 2007 Interim Guidelines. With low-runoff conditions and . endstream endobj startxref The model is based on weather conditions over a thirty-year span. water-data.com Lake Powell Water Database. Water supply forecast volumes decreased across most of the region, Moser said during the webinar. The Colorado River flows in from the east around Mille Crag Bend and is swallowed by the lake. That reference period is updated once a decade; it now begins in the 1990s. At the beginning of water year 2023, total system storage in the Colorado River Basin was 19.54 maf (33 percent of 58.48 maf total system capacity). In the main body of Lake Powell, water pooled along its eastern edge, while large expanses of dry canyon floor were visible in the west. Chris Outcalt covers Western water issues for The Colorado Sun. Forecasts are calling for 4.1 million acre-feet of water to flow into Lake Powell from April to July this year, but water managers are obligated to release more than 7 million acre-feet out of the lake. Antelope Point Launch Ramp Bullfrog Main Launch Ramp Projections at Lake Mead show there is a chance as high as 66% that water levels will decline to 1,025 feet by 2025, triggering a Tier 3 Shortage. For five years after 2012, snow- and rainfall totals were generally low, as the region suffered through a persistent, long-term drought. google_ad_channel ="2397569894"; Combined with water withdrawals that many believe are not sustainable, the drought has caused a dramatic drop in Lake Powells water level. Soil moisture conditions have improved over the last year across most of Colorados Western Slope, but thats not necessarily saying much because of how bad soil moisture conditions were heading into last years snowmelt runoff season, Moser said. She grew up in Tucson, Arizona, where she fell in love with the ecology and geology of the Sonoran desert. Encompassing all or parts of Arizona, Colorado, Idaho, Nevada, New Mexico, Texas, Utah and Wyoming. Lake Powell, Printable Version 192 0 obj <>stream Snow levels will fall to the lowest locations Wednesday night into Thursday morning, before the storm exits eastern Arizona Thursday afternoon. A Tier 3 shortage would impact the amount of . %PDF-1.7 % SW Water Vapor, Accessibility of Launch Ramps, Primitive Launches and Other Sites The probable minimum inflow scenario reflects a dry hydrologic condition which statistically would be exceeded 90 percent of the time. The Glen Canyon Dam annual release has initially been set to 7.00 maf, and in April 2023 Reclamation will evaluate hydrologic conditions to determine if balancing releases may be appropriate under the conditions established in the 2007 Interim Guidelines; Balancing releases will be limited (with a minimum of 7.00 maf) to protect Lake Powell from declining below elevation 3,525 feet at the end of December 2023; Balancing releases will take into account operational neutrality of the 0.480 maf that was retained in Lake Powell under the. In the latter half of the decade, the drought eased somewhat. Everyone Practices Cancel Culture | Opinion, Deplatforming Free Speech is Dangerous | Opinion. A visual history of the water level of each of our Lake Powell trips over the past three years. She reported that, as of March 16, 2022, Lake Powell was at an elevation of 3,524.83 feet (ft.) with storage of 5.916 million acre-feet (maf) or 24 percent of capacity. The draft plan is expected to be released next week, according to Becki Bryant, a spokeswoman for Reclamations Upper Colorado River Region. hbbd``b`$WX)! Water levels in Lake Powell dropped to a new record low on Tuesday. google_ad_channel ="2397569894"; 04:18 . We need to get ourselves prepared," he says. Feet above sea level Change - Feet difference over previous . As of September 20, 2021, the water elevation at Glen Canyon Dam was 3,546.93 feet, more than 153 feet below "full pool" (elevation 3,700 feet). Because the 2022 operations were designed to protect critical elevations at Lake Powell, Reclamation will implement Lower Elevation Balancing Tier operations in a way that continues to protect these critical elevations, or preserves the benefits of the 2022 operations to protect Lake Powell, in water year 2023. More by Chris Outcalt, Got a story tip? As air warms over time, less precipitation makes it to the reservoirs due to evaporation. https://www.usbr.gov/newsroom/news-release/4294, https://www.usbr.gov/newsroom/#/news-release/4196, USGS site #09180500 - Colorado River near Cisco, UT, USGS site #09315000 - Green River at Green River, UT, USGS site #09379500 - San Juan River near Bluff, UT, USGS site #09380000 - Colorado River at Lees Ferry, AZ, Snowpack Conditions Upper Colorado Region Above Lake Powell, Lake Powell Inflow Forecast April-July Inflow Forecast, Current Water Year Inflow Forecast Monthly Outlooks, Glen Canyon Dam Adaptive Management Program, LTEMP - Long-Term Experimental & Management Plan, Report to Congress - Operations of Glen Canyon Dam - Water Year 2015-2016, National Park Service Glen Canyon National Recreation Area, National Park Service Grand Canyon National Park, U.S. As of Wednesday, the water level was 3,524.22 feet. Cheap sewer pipe repairs can push toxic fumes into homes and schools heres Hard water: In these metro neighborhoods, few drink the tap water. This article contains new, firsthand information uncovered by its reporter(s). google_ad_format = "160x600_as"; A 59% flow into Powell translates to about 3.8 million acre-feet. Click for . @) .=] j Bvq2 4=B4[YCO@p/e`5[ #("A3?M|Cd(Jje(B_il:.\7m=.{CZ&&q5O}NOB6jGptUEN1Dh'6dW30oLqmt1W#F/qy<5aJ5 LuQmB(JD'4z`9q#v k[ T System emergencies occur fairly infrequently and typically require small responses from Glen Canyon Dam. The amount of water predicted to flow into Lake Powell this year is down slightly from the previous month, according to the May report from the National Oceanic and Atmospheric Administrations Colorado Basin River Forecast Center. But the 30-year period is the standard reference worldwide and captures more variability, according to Paul Miller of the Colorado Basin River Forecast Center. google_color_border = "FFFFFF"; This is a decrease of 3.33 maf over the total storage at the beginning of water year 2022 when total system storage was 22.87 maf (39 percent of capacity). The period 2000-2022 is the lowest 23-year period since the closure of Glen Canyon Dam in 1963, with an average unregulated inflow of 8.29 maf, or 93 percent of the 30-year average (1991-2020). Detailed Map of Powell The lake held just 30 percent of its capacity. Water Data for 20 days surrounding Feb 28, 2022. He also was an associate editor at 5280 and a reporter for the Vail Daily. The Colorado River flows from the Rocky Mountains in Colorado through the southwestern United States. Our editorial policy and donor list can be viewed atwateredco.org. The annual release volume from Lake Powell during water year 2023 will be 7.77 maf under the Lower Elevation Balancing Tier and will balance the contents between Powell and Mead with annual release volumes from Glen Canyon Dam between 7.00 maf and 9.50 maf as determined under Section 6.D.1 and 7.D of the Interim Guidelines as determined by the Department of the Interior as described above. Though the 2022 forecast isnt expected to be finalized until later this month, water officials expect that more water will have to be released from Upper Basin storage reservoirs this summer because inflows into the lake from the drought-stressed Colorado River are expected to be well below average again, in the 60% to 80% range. For more information on the tools we use, consult, Upper Colorado Mainstem Specific Site Forecasts. google_color_url = "426C95"; google_ad_height = 600; In water year 2021 unregulated inflow volume to Lake Powell was 3.50 maf (36 percent of average), the second driest year on record above 2002. The elevations listed in the August 2022 24-Month Study report reflected the projected physical elevations at each reservoir after implementing operations as described for water year 2023 tier determination purposes. Under the current most probable forecast, the total water year 2023 unregulated inflow to Lake Powell is projected to be 10.44 maf (109 percent of average). Lund said he expects water use in the basin to have "capped out," but the reservoir can't continue to supply water at the pace in which the area consumes it. In order to restore Lake Powell's levels, one expert said people must conserve water in the Colorado River's lower basin. 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