National Weather Service United States Department of Commerce

Severe Thunderstorm Outbreak Possible in the Upper Midwest on Monday

Multiple corridors of severe thunderstorms are expected across the Upper Midwest on Monday into Monday night, with a regional severe weather outbreak possible. The most dangerous period is likely during the late afternoon and evening when strong tornado potential should be maximized. Scattered large to very large hail and damaging winds are likely as well. Read More >

COZ290-281815-
COZ290-281815-
Paradox Valley Forecast Area-
811 PM MDT Sun Apr 27 2025

Fire Weather Planning Forecast for Wrn Colorado and Ern Utah
National Weather Service Grand Junction CO
811 PM MDT Sun Apr 27 2025

.DISCUSSION... Red Flag Warnings have been allowed to expire at 8 PM
due to diminishing winds and recovering relative humidity. Winds 
are are expected to remain below 25 mph over the next few days. 
Cooler and wetter conditions move in tonight, bringing and end to 
critical fire weather conditions through at least midweek. There 
is a greater than 50% chance for wetting rains in the northern and
central mountains on Wednesday, and in southern mountains on 
Thursday. Expect unsettled weather in the mountains going into the
weekend. 

...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...


.REST OF TONIGHT...
Sky/weather.........Partly cloudy (50-60%) until 2400, then mostly 
                    cloudy (60-70%). 
Chc of lightning....0 percent. 
Min temperature.....26-36 F near 6000 feet 
                    23-33 F near 8000 feet. 
Max humidity........45-55% near 6000 feet 
                    54-64% near 8000 feet. 
20-foot winds.......Southwest winds 10 to 15 mph with gusts to 30 
                    mph early in the evening becoming 
                    downslope/downvalley 3 to 6 mph by sunset. 
CWR.................0 percent. 
15K Ft MSL Winds....Southwest 20 to 30 mph. 
Mixing Height.......2000 ft AGL. 
Transport Winds.....Southwest 5 to 10 mph. 
Smoke dispersal.....Poor. 

.MONDAY...
Sky/weather.........Near 6000 feet, partly cloudy (30-40%) until 
                    1200, then mostly cloudy (60-70%), isolated 
                    showers after 1200. Near 8000 feet, mostly 
                    sunny (20-30%) until 1200, then partly cloudy 
                    (50-60%). 
Chc of lightning....0 percent. 
Max temperature.....52-62 F near 6000 feet 
                    43-53 F near 8000 feet. 
Min humidity........16-26%. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 20 to 25 mph. 
Mixing Height.......1500 ft AGL until 0800, then 8500 ft AGL. 
Transport Winds.....Southwest 10 to 15 mph. 
Smoke dispersal.....Poor until 0900, then very good. 

.MONDAY NIGHT...
Sky/weather.........Partly cloudy (40-50%). Near 6000 feet, 
                    isolated showers until 2400. 
Chc of lightning....0 percent. 
Min temperature.....28-38 F near 6000 feet 
                    23-33 F near 8000 feet. 
Max humidity........55-70% near 6000 feet 
                    61-76% near 8000 feet. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................10 percent. 
15K Ft MSL Winds....Southwest 5 to 10 mph. 
Mixing Height.......6000 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....Northwest 5 to 10 mph until 2400, then 
                    northeast. 
Smoke dispersal.....Poor. 

.TUESDAY...
Sky/weather.........Near 6000 feet, mostly sunny (20-30%) until 
                    1200, then partly cloudy (40-50%), isolated 
                    showers and thunderstorms after 1200. Near 8000 
                    feet, partly cloudy (40-50%), scattered showers 
                    and isolated thunderstorms after 1200. 
Chc of lightning....10 percent. 
Max temperature.....57-67 F near 6000 feet 
                    45-55 F near 8000 feet. 
Min humidity........13-23% near 6000 feet 
                    21-31% near 8000 feet. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................10 percent. 
15K Ft MSL Winds....South 10 to 15 mph. 
Mixing Height.......3000 ft AGL until 1000, then 10000 ft AGL. 
Transport Winds.....East 5 mph until 1200, then southwest. 
Smoke dispersal.....Poor until 0900. Good after 1200. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms
near 8000 feet. Lows 34-44. Highs 63-73. Winds less than 15 mph. 
.THURSDAY...Mostly cloudy. Scattered showers and thunderstorms.
Lows 37-47. Highs 61-71. Winds less than 15 mph. 
.FRIDAY...Partly cloudy. Scattered showers and isolated
thunderstorms near 6000 feet and scattered showers and isolated
thunderstorms near 8000 feet. Lows 36-46. Highs 68-78. Winds less
than 15 mph. 
.SATURDAY...Partly cloudy. Isolated showers and thunderstorms
near 6000 feet and scattered showers and isolated thunderstorms
near 8000 feet. Lows 41-51. Highs 68-78. 
.SUNDAY...Partly cloudy. Scattered showers and isolated
thunderstorms near 6000 feet and scattered showers and
thunderstorms near 8000 feet. Lows 42-52. Highs 61-71.