Fri May  3 05:13:23 EDT 2024

Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
312 AM MDT Fri May 3 2024

.TODAY...
Sky/weather.........Partly cloudy. Isolated snow showers early in 
                    the afternoon. Chance of snow 20 percent. 
Max temperature.....37-42. 
   24 hr trend......2 degrees warmer. 
Min humidity........37-43 percent. 
   24 hr trend......8 percent wetter. 
20-foot winds.......North winds around 10 mph and gusty until 1500, 
                    then west with higher gusts. 
Ridge top winds.....North 10 to 15 mph until 1200, then northwest. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....North 10 to 15 mph until 1500, then northwest. 
Mixing Height.......600-2400 ft agl until 1200, then 4800-5600 ft 
                    agl. 
Smoke dispersal.....Fair to good. 
Haines Index........3. 

.TONIGHT...
Sky/weather.........Partly cloudy. 
Min temperature.....18-23. 
   24 hr trend......1 degree warmer. 
Max humidity........77-83 percent. 
   24 hr trend......14 percent drier. 
Humidity recovery...Excellent. 
20-foot winds.......West winds around 10 mph until 2100, then 
                    downslope/downvalley 4-7 mph until 2400, then 
                    south around 10 mph. Gusts up to 15 mph. 
Ridge top winds.....Southwest 10 to 15 mph until 2400, then south. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....West 10 to 15 mph until 2400, then south. 
Mixing Height.......4800-5200 ft agl until 2100, then 400-600 ft 
                    agl. 
Smoke dispersal.....Fair to good until 2100, then poor. 
Haines Index........2. 

.SATURDAY...
Sky/weather.........Mostly sunny then becoming partly cloudy. 
Max temperature.....51-56. 
   24 hr trend......12 degrees warmer. 
Min humidity........33-39 percent. 
   24 hr trend......4 percent drier. 
20-foot winds.......Upslope/upvalley 5-9 mph until 0900, then south 
                    10 to 15 mph with higher gusts. 
Ridge top winds.....South 10 to 15 mph until 1500, then around 20 
                    mph. 
LAL.................1. 
Chc of wetting rain.Zero percent. 
Transport winds.....South 15 to 20 mph. 
Mixing Height.......400-1600 ft agl until 1200, then 3600-5000 ft 
                    agl. 
Smoke dispersal.....Poor to fair until 1500, then good. 
Haines Index........3. 


.Forecast days 3 through 7......
.SATURDAY NIGHT...Not as cold. Mostly cloudy. Slight chance of
showers and snow showers after midnight. Lows in the lower 30s.
Southeast winds around 10 mph. 
.SUNDAY...Showers, snow showers and slight chance of
thunderstorms. Lows in the mid 20s. Highs in the upper 40s.
Southwest winds around 10 mph. 
.MONDAY...Colder. Snow showers. Lows in the lower 20s. Highs in
the mid 30s. West winds around 15 mph. 
.TUESDAY...Mostly cloudy with snow showers likely. Lows around
20. Highs in the mid 30s. West winds around 15 mph. 
.WEDNESDAY...Mostly cloudy with snow showers likely. Lows in the
lower 20s. Highs in the mid 30s. 
.THURSDAY...Mostly cloudy. Chance of snow showers in the morning,
then snow showers likely in the afternoon. Highs in the lower
40s.