Over the past week since the last report on October 26th, 0.07 inches/1.8 millimeters of rainfall, 0.0 inches/0.0 centimeters of snowfall, and 0.00 inches/0.0 millimeters of snowfall snow-water equivalent was manually observed.

Reservoirs in the Yakima River Basin are currently at 9% of capacity, up from 7% from the last report. The current total basin storage is 92,228 acre-feet, up from 74,280 acre-feet from the last report. The Yakima River at Kiona is currently at a stage of 4.70 feet/1.43 meters, steady from 4.77 feet/1.45 meters from the last report, and below the normal stage of 5.18 feet/1.48 meters.

A water right curtailment order issued October 6th, 2025 remains in effect, calling for all water right holders that source water from the Yakima River Basin to cease diversions, except those with the most senior 1855 rights, due to record low storage levels in the Yakima River Basin reservoirs. A drought emergency declaration, issued on April 8th, 2025, also remains in effect for the Naches, Upper Yakima, and Lower Yakima Watersheds.

Since the last report on October 26th, automated companion weather station GW3765 has recorded 0.06 inches/1.5 millimeters of rainfall. Daytime high temperatures at this station have ranged from 48°F/9°C to 73°F/23°C and overnight low temperatures have ranged from 33°F/1°C to 45°F/7°C. A high wind gust of 32 mph/52 km/h and a low relative humidity of 39% was also observed. There were 121 °F/67 °C heating degree days and 1 °F/1 °C cooling degree days.

No wildfires were reported across the lower Columbia Basin this past week. Fire danger ratings have been lowered to Low across the Upper Yakima, Lower Yakima, and Lower Columbia Basins. One very large D2.5 natural avalanche was reported on Mt. Baker in the West Slopes North region of the Cascade Range on October 29th.

Precipitation for October at this station was near normal, with 0.67 inches/17.0 millimeters of rainfall, 0.0 inches/0.0 centimeters of snowfall, and 0.00 inches/0.0 millimeters of snow-water equivalent manually observed. The normal rainfall month-to-date is 0.68 inches/17.3 millimeters. Precipitation for the month at this station since November 1st, 2025 is near normal, with 0.00 inches/0.0 millimeters of rainfall, 0.0 inches/0.0 centimeters of snowfall, and 0.00 inches/0.0 millimeters of snow-water equivalent manually observed. The normal rainfall month-to-date is 0.06 inches/1.5 millimeters. Precipitation for the 2025-2026 Water Year (October 1st, 2025 - September 30th, 2026) remains near normal, with 0.67 inches/17.0 millimeters of rainfall, 0.0 inches/0.0 centimeters of snow, and 0.00 inches/0.0 millimeters of snow-water equivalent manually observed. The normal rainfall water year-to-date is 0.74 inches/18.8 millimeters.