Mon May 20 06:16:54 EDT 2024

Granite/Green/Ferris/Rattlesnake Mountains-
Including the city of Jeffrey City
416 AM MDT Mon May 20 2024

.TODAY...
Sky/weather.........Cloudy. Scattered rain showers and snow showers 
                    in the morning, then numerous rain showers and 
                    isolated thunderstorms in the afternoon. No 
                    snow accumulation. Chance of precipitation 70 
                    percent. 
Max temperature.....42-47. 
   24 hr trend......20 degrees cooler. 
Min humidity........62-68 percent. 
   24 hr trend......49 percent wetter. 
20-foot winds.......East winds around 10 mph until 1200, then 
                    southeast. Gusts up to 15 mph. 
Ridge top winds.....East 10 to 15 mph until 1200, then southeast. 
LAL.................1 until 1200, then 2. 
Chc of wetting rain.40 percent until 1200, then 60 percent. 
Transport winds.....East around 10 mph until 1200, then around 15 
                    mph. 
Mixing Height.......1400-3400 ft agl. 
Smoke dispersal.....Poor to fair. 
Haines Index........2. 

.TONIGHT...
Sky/weather.........Cloudy. Isolated thunderstorms in the evening. 
                    Numerous rain showers through the night. 
                    Numerous snow showers after midnight. Little or 
                    no snow accumulation. Chance of precipitation 
                    70 percent. 
Min temperature.....30-35. 
   24 hr trend......3 degrees cooler. 
Max humidity........90-96 percent. 
   24 hr trend......11 percent wetter. 
Humidity recovery...Excellent. 
20-foot winds.......North winds around 10 mph until 0300, then 
                    northwest. Gusts up to 15 mph. 
Ridge top winds.....North around 15 mph until 0300, then northwest. 
LAL.................2 until 2400, then 1. 
Chc of wetting rain.40 percent until 2400, then 30 percent. 
Transport winds.....North around 15 mph. 
Mixing Height.......1200-2600 ft agl. 
Smoke dispersal.....Poor. 
Haines Index........3. 

.TUESDAY...
Sky/weather.........Mostly cloudy. Numerous rain showers and snow 
                    showers through the day. Isolated thunderstorms 
                    in the afternoon. Little or no snow 
                    accumulation. Chance of precipitation 70 
                    percent. 
Max temperature.....40-45. 
   24 hr trend......1 degree cooler. 
Min humidity........66-72 percent. 
   24 hr trend......Unchanged. 
20-foot winds.......Northwest winds 10 to 15 mph with higher gusts. 
Ridge top winds.....Northwest 15 to 20 mph. 
LAL.................1 until 1200, then 2. 
Chc of wetting rain.35 percent until 1200, then 60 percent. 
Transport winds.....Northwest 15 to 20 mph. 
Mixing Height.......1200-2600 ft agl until 1200, then 4200-5400 ft 
                    agl. 
Smoke dispersal.....Poor until 1200, then good. 
Haines Index........3. 


.Forecast days 3 through 7......
.TUESDAY NIGHT...Partly cloudy. Scattered showers, snow showers
and isolated thunderstorms in the evening. Lows in the lower 30s.
West winds around 10 mph. 
.WEDNESDAY...Warmer. Partly cloudy with slight chance of showers
and thunderstorms. Lows in the upper 30s. Highs in the upper 50s.
Southwest winds around 15 mph. 
.THURSDAY...Partly cloudy with chance of showers, snow showers
and slight chance of thunderstorms. Lows in the lower 30s. Highs
in the mid 50s. West winds around 20 mph. 
.FRIDAY...Partly cloudy. Slight chance of showers, thunderstorms
and snow showers. Lows in the upper 30s. Highs in the upper 50s.
West winds around 15 mph. 
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows around 40. Highs in the mid 60s. 
.SUNDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 60s.