Heavy to excessive rainfall is forecast over north Texas into Oklahoma Tuesday. Locally catastrophic flooding will be possible across portions of southwest Oklahoma. Flood Watches have been issued. Scattered severe thunderstorms are possible within a broad swath from the lower Great Lakes to the southern High Plains Tuesday afternoon into the evening. Read More >
UTZ487-291300- UTZ487-291300- Book Cliffs- 254 PM MDT Mon Apr 28 2025 Fire Weather Planning Forecast for Wrn Colorado and Ern Utah National Weather Service Grand Junction CO 254 PM MDT Mon Apr 28 2025 .DISCUSSION... Much cooler temps are moving in with some isolated to scattered rain and snow showers expected over the higher terrain. A warmup commences on Tuesday but temperatures will reach more normal values. Fire weather concerns will be minimal. ...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS OR THUNDERSTORMS... ...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL... .TONIGHT... Sky/weather.........Partly cloudy (40-50%). Near 5000 feet, isolated showers and thunderstorms until 2400. near 8000 feet, isolated thunderstorms until 2400. Chc of lightning....10 percent. Min temperature.....31-41 F near 5000 feet 25-35 F near 8000 feet. 24 hr trend......Unchanged. Max humidity........67-82%. 24 hr trend......7% wetter. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......8000 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....Southwest 5 to 10 mph until 2400, then northeast. Clearing Index......550 until 2000, then less than 500. .TUESDAY... Sky/weather.........Near 5000 feet, mostly sunny (20-30%). Near 8000 feet, mostly sunny (20-30%) until 1200, then partly cloudy (30-40%). Chc of lightning....0 percent. Max temperature.....54-64 F near 5000 feet 49-59 F near 8000 feet. 24 hr trend......6 degrees warmer. Min humidity........12-22% near 5000 feet 20-30% near 8000 feet. 24 hr trend......4% drier. 20-foot winds.......Downslope/downvalley 3 to 6 mph becoming upslope/upvalley 4 to 8 mph by 1100. CWR.................0 percent. Mixing Height.......2500 ft AGL until 1000, then 10500 ft AGL. Transport Winds.....Northeast 5 mph until 1200, then west. Clearing Index......600 until 1400, then 850. .TUESDAY NIGHT... Sky/weather.........Mostly clear (20-30%). Chc of lightning....0 percent. Min temperature.....34-44 F near 5000 feet 29-39 F near 8000 feet. 24 hr trend......4 degrees warmer. Max humidity........46-56%. 24 hr trend......22% drier. 20-foot winds.......Upslope/upvalley 4 to 8 mph becoming downslope/downvalley 3 to 6 mph by sunset. CWR.................0 percent. Mixing Height.......8500 ft AGL until 2000, then 1500 ft AGL. Transport Winds.....Northwest 5 to 10 mph until 2400, then southwest. Clearing Index......700 until 2000, then less than 500. .WEDNESDAY... Sky/weather.........Partly cloudy (40-50%) until 1200, then mostly cloudy (70-80%). Near 5000 feet, scattered showers and isolated thunderstorms after 1200. near 8000 feet, isolated showers and thunderstorms after 1200. Chc of lightning....20 percent. Max temperature.....59-69 F near 5000 feet 52-62 F near 8000 feet. 24 hr trend......2 degrees warmer. Min humidity........17-27%. 24 hr trend......5% wetter. 20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized gusts up to 25 mph in the afternoon. CWR.................10 percent. Mixing Height.......1500 ft AGL until 0800, then 10000 ft AGL. Transport Winds.....West 5 to 10 mph. Clearing Index......Less than 500 until 0900. 1050 after 1100. .FORECAST FOR DAY 3 THROUGH 7... .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms near 6000 feet and scattered showers and isolated thunderstorms near 8000 feet. Lows 37-47. Highs 59-69. Winds less than 15 mph. .FRIDAY...Mostly clear. Isolated showers near 8000 feet. Lows 35-45. Highs 66-76. Winds less than 15 mph. .SATURDAY...Partly cloudy. Isolated showers. Lows 41-51. Highs 68-78. South winds 10 to 20 mph with gusts to 35 mph. .SUNDAY...Partly cloudy. Scattered showers and isolated thunderstorms near 6000 feet and scattered showers and isolated thunderstorms near 8000 feet. Lows 44-54. Highs 61-71. .MONDAY...Cooler. Partly cloudy. Scattered showers and isolated thunderstorms near 6000 feet and isolated showers and thunderstorms near 8000 feet. Lows 32-42. Highs 51-61.