HIGHLIGHTS FOR THE MONTH
DAKOTAS AREA OFFICE
End-of-month elevation at Angostura Reservoir for the month of June was the lowest in 55 years of record. Angostura Reservoir ended irrigation releases on June 30 because of a lack of storage.
June end-of-month elevation at Shadehill Reservoir was the second lowest in 55 years of record.
End-of-month storage at Lake Tschida Reservoir was the seventh lowest content on record for the month of June.
Inflows to Jamestown Reservoir was the fifth highest monthly inflow on record for the month of June.
EASTERN COLORADO AREA OFFICE
The Lake Granby storage of 433,900 acre-feet (AF) on June 30, 2007, was 21,800 AF below average and 4,600 AF lower than 1 year ago. Colorado-Big Thompson Project storage water in Lake Granby, Carter Lake, and Horsetooth Reservoir was 618,900 AF on June 30, 2007, 66,700 AF below average and 77 percent of the total available storage capacity.
Total water storage in the Fryingpan-Arkansas Project at the end of June 2007, was 554,900 AF, and 87,400 AF higher than 1 year ago.
MONTANA AREA OFFICE
For the month of June, inflow to Lake Elwell was the fourth lowest on record; Fresno Reservoir was the sixth lowest; Sherburne Lake was the seventh lowest; Clark Canyon and Gibson Reservoirs were the ninth lowest; and inflow to Bighorn Lake were the eleventh lowest on record.
End of June storage in Fresno Reservoir was the tenth lowest on record and the end of June storage in Bighorn Lake was the fourteenth highest on record. End of June storage in Gibson Reservoir was the eighth lowest and storage in Clark Canyon Reservoir was the eleventh lowest on record.
NEBRASKA-KANSAS AREA OFFICE
June precipitation recorded at Lovewell Dam was the third highest ever for the month and precipitation recorded at Enders Dam was the fourth highest for the month of June.
June computed inflows were the second greatest ever recorded for the month at Enders Reservoir. Runoff from heavy rainfall upstream of Enders Reservoir from June 11th through the 13th resulted in the pool level increasing 9.5 feet (9,000 acre-feet) in three days. Due to the extremely low reservoir level prior to the event, the reservoir level remains well below the top of active conversation.
WYOMING AREA OFFICE
Bighorn River Basin
Inflow to Buffalo Bill and Boysen Reservoirs during June was the third and fourth lowest in the past 30 years, respectively.
End of June storage at Boysen Reservoir was the fourth lowest in the last 30 years.
North Platte River Basin
June inflow to Pathfinder Reservoir was the third lowest inflow in the last 30 years.
Storage in Pathfinder Reservoirs was the third lowest end of June storage in the last 30 years. The Kendrick storage ownership was the lowest June ownership in the last 30 years. The Glendo ownership was the third lowest June ownership in the last 30 years.
OKLAHOMA-TEXAS AREA OFFICE
The water level for the seven reservoirs in Oklahoma and Cheney Reservoir in Kansas remain either in the flood pool or surcharge pool with continuing heavy rain and flood warnings scatter across the area.
CORPS OF ENGINEERS - MAIN-STEM RESERVOIRS
The combination of extraordinarily low releases and abundant rain over much of the basin raised the level of the three biggest Missouri River Reservoirs by 2 to 5 feet in June. Total storage in the reservoir system increased by 2 million acre-feet (MAF) in June.
The revised 2007 forecast is 21.7 million acre-feet (MAF), 86 percent of normal. Normal runoff is 25.2 MAF. Reservoir storage on July 1 was 40.2 MAF, 2.0 MAF higher than last month. Normal storage for the end of June is 59 MAF.
The six main-stem powerplants generated a record low 459 million kilowatt hours (kWh) of electricity in June, only 53 percent of normal. This level of generation was attributed to the lower pool levels and the decrease in releases from the dams. Total energy production for 2007 is forecasted to be 5.2 billion kilowatt hours (kWh) compared to a normal of 10 billion kWh.