Fri May 17 08:57:32 EDT 2024 East Washington Central Cascades (Zone 696)- East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697)- East Washington North Cascades (Zone 698)- Including the cities of Stevens Pass, Lake Wenatchee Area, Leavenworth, and Stehekin 557 AM PDT Fri May 17 2024 .Today... * Sky/Weather.........Mostly sunny. A chance of rain and mountain snow showers, mainly in the morning. * LAL.................1. * Max Temperature.....53-63 valleys and 41-51 mountains. * 24 hr Trend........8 degrees cooler. * Min Humidity........30-45 percent valleys and 40-55 percent mountains. * 24 hr Trend........4 percent drier valleys, and 15 percent drier mountains. * 20-foot winds....... * Valleys/Lwr Slopes...Northwest 8 to 19 mph with gusts to around 30 mph. * Ridges/Upr Slopes....Breezy. West 15 to 20 mph with gusts to around 45 mph. * Haines Index........3 or very low. * Mixing Height.......5500 ft AGL. * Transport Winds.....Northwest 20 to 35 mph. * CWR (> 0.10 IN).....10 percent. .TONIGHT... * Sky/Weather.........Mostly cloudy then becoming partly cloudy. * LAL.................1. * Min Temperature.....36-45 valleys and 27-37 mountains. * 24 hr Trend........1 degree warmer. * Max Humidity........65-80 percent. * 24 hr Trend........20 percent drier valleys, and 10 percent drier mountains. * Humidity Recovery...Good. * 20-foot winds....... * Valleys/Lwr Slopes...Northwest 5 to 16 mph. Gusts to around 26 mph in the evening. * Ridges/Upr Slopes....West 12 to 23 mph. Gusts to around 40 mph in the evening. * Haines Index........3 or very low. * Mixing Height.......4000 ft AGL falling to near surface. * Transport Winds.....West 15 to 25 mph. * CWR (> 0.10 IN).....0 percent. .SATURDAY... * Sky/Weather.........Partly sunny. A chance of valley rain and mountain snow showers. * LAL.................1. * Max Temperature.....52-62 valleys and 41-51 mountains. * Min Humidity........30-45 percent valleys and 45-60 percent mountains. * 20-foot winds....... * Valleys/Lwr Slopes...West 3 to 8 mph in the morning increasing to 9 to 12 mph with gusts to around 25 mph in the afternoon and evening. * Ridges/Upr Slopes....West 5 to 15 mph with gusts to around 30 mph. * Haines Index........3 or very low. * Mixing Height.......6000 ft AGL. * Transport Winds.....West 10 to 20 mph. * CWR (> 0.10 IN).....10 percent. .Forecast Days 3 Through 7...... .SUNDAY...Partly cloudy. A chance of valley rain and mountain snow showers. Lows 36 to 45 valleys...27 to 37 mountains. Highs 54 to 64 valleys...44 to 54 mountains. Northwest wind 5 to 15 mph. .MONDAY...Partly cloudy. Lows 37 to 47 valleys...30 to 40 mountains. Highs 62 to 72 valleys...51 to 61 mountains. West wind 5 to 15 mph. .TUESDAY...Mostly cloudy. Rain showers, high mountain snow showers likely and a chance of thunderstorms. Lows 42 to 51 valleys...33 to 43 mountains. Highs 56 to 66 valleys...46 to 56 mountains. West wind 5 to 15 mph. .WEDNESDAY...Mostly cloudy. A chance of rain showers, high mountain snow showers and thunderstorms. Lows 40 to 50 valleys... 33 to 43 mountains. Highs 55 to 65 valleys...43 to 53 mountains. .THURSDAY...Mostly cloudy. A chance of rain and high mountain snow showers. Lows 39 to 49 valleys...32 to 42 mountains. Highs 58 to 68 valleys...46 to 56 mountains. .8 to 14 Day Outlook for May 24 - 30 2024 Below normal temperatures and near normal precipitation.