UTZ491-021800-
UTZ491-021800-
Southeast Utah-
800 PM MDT Fri Aug 1 2025
Fire Weather Planning Forecast for Wrn Colorado and Ern Utah...UPDATED
National Weather Service Grand Junction CO
800 PM MDT Fri Aug 1 2025
...RED FLAG WARNING IN EFFECT FROM 1 PM UNTIL 7 PM MDT SATURDAY
FOR GUSTY WINDS, LOW HUMIDITY AND DRY FUELS FOR COLORADO FIRE
WEATHER ZONES 200, 202, 203, 207 AND 290, AS WELL AS UTAH FIRE
WEATHER ZONES 487, 490 AND 491...
.DISCUSSION...Critical fire weather conditions are expected for
the next several days amid a drying pattern. Critical fire weather
conditions become more widespread tomorrow as humidities drop and
gusts increase to over 30 mph in some locations. Thus, most zones
along the CO-UT border have been placed in Red Flag Warnings
tomorrow. Scattered showers are anticipated again tomorrow, which
could bring wetting rain to some ongoing fires, though frequent
lightning will pose a threat of new ignitions.
...GUSTY ERRATIC WINDS CAN BE EXPECTED NEAR ANY SHOWERS
OR THUNDERSTORMS...
...THE SMOKE DATA IS CALCULATED FROM AN AVERAGE AT 6000 FEET MSL...
...RED FLAG WARNING IN EFFECT FROM 1 PM TO 7 PM MDT SATURDAY FOR
GUSTY WINDS, LOW HUMIDITY AND DRY FUELS...
.REST OF TONIGHT...
Sky/weather.........Partly cloudy (30-40%). Areas of smoke. Near
8000 feet, isolated showers and thunderstorms
until 2400.
Chc of lightning....0 percent.
Min temperature.....62-72 F near 5000 feet
54-64 F near 8000 feet.
24 hr trend......1 degree cooler.
Max humidity........32-42%.
24 hr trend......16% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 20 mph in the evening.
CWR.................0 percent.
Mixing Height.......12000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....Southwest 5 to 10 mph.
Clearing Index......1050 until 2000, then less than 500.
.SATURDAY...
Sky/weather.........Mostly sunny (10-20%). Areas of smoke.
Chc of lightning....0 percent.
Max temperature.....91-101 F near 5000 feet
75-85 F near 8000 feet.
24 hr trend......2 degrees warmer.
Min humidity........7-12%.
24 hr trend......7% drier.
20-foot winds.......Downslope/downvalley winds 4 to 8 mph becoming
southwest 10 to 15 mph with gusts to 30 mph in
the afternoon.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 0900. 15000 ft AGL after
1100.
Transport Winds.....Southwest 5 to 10 mph until 1200, then 20 to 25
mph.
Clearing Index......Less than 500 until 0900. 1050 after 1000.
.SATURDAY NIGHT...
Sky/weather.........Mostly clear (10-20%). Areas of smoke.
Chc of lightning....0 percent.
Min temperature.....59-69 F near 5000 feet
52-62 F near 8000 feet.
24 hr trend......2 degrees cooler.
Max humidity........12-22%.
24 hr trend......21% drier.
20-foot winds.......Downslope/downvalley winds 3 to 6 mph.
Localized gusts up to 25 mph in the evening.
CWR.................0 percent.
Mixing Height.......14000 ft AGL until 2000, then 1500 ft AGL.
Transport Winds.....West 5 to 10 mph.
Clearing Index......1050 until 2000, then less than 500.
.SUNDAY...
Sky/weather.........Sunny (0-10%). Areas of smoke until 1200.
Chc of lightning....0 percent.
Max temperature.....90-100 F near 5000 feet
75-85 F near 8000 feet.
24 hr trend......1 degree cooler.
Min humidity........3-8%.
24 hr trend......2% drier.
20-foot winds.......Upslope/upvalley winds 4 to 8 mph. Localized
gusts up to 25 mph in the afternoon.
CWR.................0 percent.
Mixing Height.......1500 ft AGL until 1000. 13500 ft AGL after
1200.
Transport Winds.....West 5 mph.
Clearing Index......Less than 500 until 1100. 1050 after 1300.
.FORECAST FOR DAY 3 THROUGH 7...
.MONDAY...Clear. Lows 57-67. Highs 92-102. Winds less than
15 mph.
.TUESDAY...Mostly clear. Lows 60-70. Highs 92-102. Winds less
than 15 mph.
.WEDNESDAY...Partly cloudy. Lows 62-72. Highs 92-102. Winds less
than 15 mph.
.THURSDAY...Partly cloudy. Lows 62-72. Highs 93-103.
.FRIDAY...Mostly clear. Lows 63-73. Highs 93-103.
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