Weather Alerts For Union Gap, WA
Dense Fog Advisory
-URGENT - WEATHER MESSAGE National Weather Service Pendleton OR 640 AM PST Sat Dec 13 2025 Yakima Valley-Lower Columbia Basin of Washington- Including the cities of Yakima, Naches, Tri-Cities, Sunnyside, Connell, Prosser, and Toppenish 640 AM PST Sat Dec 13 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY... * WHAT...Visibility reduced to around one quarter of a mile or less in dense fog. * WHERE...Yakima Valley and Lower Columbia Basin of Washington. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. &&
Flood Warning
-Flood Statement National Weather Service Pendleton OR 448 AM PST Sat Dec 13 2025 ...The Flood Warning is extended for the following rivers in Washington... Yakima River near Parker affecting Yakima County. For the Yakima River...including Horlick, Umtanum, Parker, Kiona... Major flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... Caution is urged when walking near riverbanks. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov/pdt. && 448 AM PST Sat Dec 13 2025 ...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY MORNING... * WHAT...Minor flooding is forecast. * WHERE...Yakima River near Parker. * WHEN...Until late Thursday morning. * IMPACTS...At 10.0 feet, There will be minor flooding of pastures and farm roads adjacent to the river. * ADDITIONAL DETAILS... - At 3:30 AM PST Saturday the stage was 9.6 feet. - Bankfull stage is 9.4 feet. - Forecast...The river will fall to 7.4 feet Monday afternoon. It will then rise above flood stage early Wednesday afternoon to 10.2 feet late Wednesday evening. It will fall below flood stage early Thursday morning to 8.6 feet late Friday morning. It will then rise to 8.8 feet Saturday, December 20. It will fall again and remain below flood stage. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 10.2 feet on 02/26/1986. - http://www.weather.gov/safety/flood &&
Special Weather Statement
-Special Weather Statement National Weather Service Pendleton OR 1015 PM PST Fri Dec 12 2025 East Slopes of the Oregon Cascades-Kittitas Valley-Yakima Valley- Simcoe Highlands- Upper Slopes of the Eastern Washington Cascades Crest- Lower Slopes of the Eastern Washington Cascades Crest- Including the cities of Camp Sherman, La Pine, Sisters, Sunriver, Ellensburg, Thorp, Naches, Sunnyside, Toppenish, Yakima, Goldendale, Bickleton, Roslyn, Easton, Appleton, Cle Elum, and Cliffdell 1015 PM PST Fri Dec 12 2025 ...HEAVY CASCADES SNOW AND MORE FLOODING POSSIBLE NEXT WEEK... Another active weather pattern with a moderately strong atmospheric river is expected in the Cascades, especially the Washington Cascades, beginning Monday and Tuesday. Moderate to heavy rain is possible at the Cascade crest with amounts decreasing away from the crest. By Tuesday night, snow levels drop to around 2500 feet and mountain rain will turn over to snow. Snoqualmie Pass and White Pass have a 45 to 65 percent chance of 2 feet of snow from Tuesday through Thursday night, while Santiam Pass has a 30 percent chance of 2 feet of snow in the same period. This precipitation will lead to river rises and potential additional flooding on the Yakima and Naches Rivers as well as an increased risk of rock and mud slides in areas of steep terrain and near burn scars. However, the transition to snow is expected to keep flooding at lower levels than the past few days. While the Yakima and Naches Rivers are forecast to reach minor flood stage by Tuesday and Wednesday, other rivers in the area are expected to remain below bankfull. Also, windy conditions are expected Tuesday night and Wednesday which may lead to difficult mountain driving conditions. Those living or having travel plans through the Cascades should be prepared for impactful weather next week.