45°42'北 / 121°30'西 / 高度 42 m / 07:37 2026-08-04, America/Los_Angeles (UTC-7)
開始于: 2026-08-04, 11:00
到: 2026-08-04, 14:00
...CRITICAL FIRE WEATHER CONDITIONS EXPECTED IN THE WESTERN COLUMBIA RIVER GORGE THIS AFTERNOON THROUGH WEDNESDAY EVENING FOR DRY CONDITIONS AND EASTERLY WINDS UP TO 38 MPH... * AFFECTED AREA...In Washington, Fire Weather Zone 636 Western Columbia River Gorge in Oregon and Washington. * WINDS...East 10 to 20 mph with gusts up to 38 mph. Winds will be strongest this morning through the early afternoon, and again tonight through early Wednesday afternoon. * RELATIVE HUMIDITY...As low as 15-20 percent. Relative humidity values will be lowest this afternoon and Wednesday afternoon. Poor overnight humidity recoveries are expected with maximum relative humidity values ranging between 35-45%. * IMPACTS...Conditions may be favorable for rapid fire spread which may threaten life and property. Use extra caution with potential ignition sources, especially in grassy areas. Outdoor burning is not recommended.