National Weather Service United States Department of Commerce

Beautiful Fall weather will persist through Tuesday

Dry and seasonal weather will occur across eastern Utah and western Colorado through Tuesday. Read More >

 

UTZ490-231300-
Colorado River Basin-
300 PM MDT Sun Oct 22 2017

.DISCUSSION...Mid and high clouds will continue to sweep
southeastward over the forecast area tonight. Scattered light snow
showers are possible over the Elkhead and Park Ranges late 
tonight and Monday morning. A building ridge over the west will 
cause flow to shift to the north and decrease Tuesday and 
Wednesday while temperatures slowly climb to near normal. A chance
for precipitation arrives Friday, though timing and placement 
unclear as models struggle to resolve this system. However, models
were consistent with cooler and dry conditions returning by 
Friday and continuing 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...

.Tonight...
Sky/weather.........Mostly clear (20-30%). 
Min temperature.....31-41 F. 
   24 hr trend......7 degrees warmer. 
Max humidity........48-58%. 
   24 hr trend......13% wetter. 
20-foot winds.......Upslope/upvalley 4 to 8 mph becoming 
                    downslope/downvalley 3 to 6 mph by sunset.
CWR.................0 percent. 
LAL.................1.
Haines Index........4 low. 
Mixing Height.......2000 ft AGL. 
Transport Winds.....West 5 mph until 2400, then northwest. 
Clearing Index......Less than 500. 

.MONDAY...
Sky/weather.........Mostly sunny (10-20%). 
Max temperature.....61-71 F near 5000 feet 
                    51-61 F near 7000 feet. 
   24 hr trend......6 degrees warmer. 
Min humidity........21-31%. 
   24 hr trend......8% wetter. 
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized 
                    gusts up to 20 mph in the afternoon. 
CWR.................0 percent. 
LAL.................1.
Haines Index........2 very low. 
Mixing Height.......2000 ft AGL until 1100, then 6500 ft AGL. 
Transport Winds.....North 5 mph. 
Clearing Index......Less than 500 until 1200. 900 after 1400. 

.MONDAY NIGHT...
Sky/weather.........Clear (0-10%). 
Min temperature.....34-44 F. 
   24 hr trend......1 degree warmer. 
Max humidity........53-63%. 
   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. 
LAL.................1.
Haines Index........4 low. 
Mixing Height.......5500 ft AGL until 2000, then 2000 ft AGL. 
Transport Winds.....Northeast 5 to 10 mph. 
Clearing Index......800 until 1900. Less than 500 after 2100. 

.TUESDAY...
Sky/weather.........Sunny (0-10%). 
Max temperature.....61-71 F near 5000 feet 
                    51-61 F near 7000 feet. 
   24 hr trend......2 degrees warmer. 
Min humidity........13-23%. 
   24 hr trend......9% drier. 
20-foot winds.......Downslope/downvalley 3 to 6 mph becoming 
                    upslope/upvalley 4 to 8 mph by 1100.
CWR.................0 percent. 
LAL.................1.
Haines Index........4 low. 
Mixing Height.......5500 ft AGL. 
Transport Winds.....Northeast 5 to 10 mph. 
Clearing Index......Less than 500 until 1200, then 750. 

.FORECAST FOR DAY 3 THROUGH 7...
.WEDNESDAY...Clear. Lows 35-45. Highs 64-74. Winds less than
15 mph. 
.THURSDAY...Mostly clear. Lows 36-46. Highs 62-72. Winds less
than 15 mph. 
.FRIDAY...Mostly clear. Lows 30-40. Highs 57-67. Winds less than
15 mph. 
.SATURDAY...Mostly clear. Lows 28-38. Highs 57-67. 
.SUNDAY...Clear. Lows 31-41. Highs 59-69. 

$$