Mon May 20 05:40:31 EDT 2024

Union-
Including the cities of North Sioux City, Beresford, Elk Point, 
Alcester, and Jefferson
440 AM CDT Mon May 20 2024

.TODAY...
Sky/weather.........Partly cloudy until 1200, then partly sunny. 
                    Slight chance of showers and thunderstorms 
                    after 1200. Chance of precipitation 20 percent. 
Max temperature.....78-83. 
Min humidity........56-61 percent. 
20-foot winds.......West winds 5 to 9 mph shifting to the north in 
                    the afternoon. 
Haines Index........4 or low. 
Hours of Sun........7 hours. 
Precipitation.......None. 
Mixing Height.......Around 4000 ft AGL (Ave 12-6 pm). 
Transport Winds.....North around 8 mph (Ave 12-6 pm). 
Smoke Dispersal.....Around 33000 or good (Ave 12-6 pm). 
Max GFDI Index......Low. 

.TONIGHT...
Sky/weather.........Mostly cloudy. Chance of showers and 
                    thunderstorms until midnight, then showers with 
                    thunderstorms likely. Chance of precipitation 
                    90 percent. 
Min temperature.....59-64. 
Max humidity........93-98 percent. 
20-foot winds.......Northeast winds 10 to 15 mph. 
Precipitation.......Widespread 0.50 to 0.75 inch amounts. 

.TUESDAY...
Sky/weather.........Cloudy. Thunderstorms likely until 1200. 
                    Showers. Chance of thunderstorms after 1200. 
                    Chance of precipitation near 100 percent. 
Max temperature.....65-70. 
Min humidity........70-75 percent. 
20-foot winds.......Northeast winds 12 to 17 mph shifting to the 
                    northwest 17 to 22 mph with gusts to around 40 
                    mph in the afternoon. 
Haines Index........3 or very low. 
Hours of Sun........1 hours. 
Precipitation.......Widespread 1.00 to 1.50 inch amounts. 
Mixing Height.......Around 2000 ft AGL (Ave 12-6 pm). 
Transport Winds.....North around 22 mph (Ave 12-6 pm). 
Smoke Dispersal.....Around 47000 or good (Ave 12-6 pm). 
Max GFDI Index......Low. 


.Forecast days 3 through 7......
.TUESDAY NIGHT...Cooler. Mostly cloudy. Chance of thunderstorms
and slight chance of showers. Lows 45 to 50. Northwest winds
17 to 22 mph with gusts to around 40 mph. Chance of precipitation
30 percent. 
.WEDNESDAY...Partly cloudy. Slight chance of showers. Highs 70 to
75. Northwest winds 10 to 15 mph with gusts to around 24 mph.
Chance of showers 20 percent. 
.WEDNESDAY NIGHT...Mostly clear. Lows 45 to 50. Southwest winds
6 to 11 mph with gusts to around 19 mph. 
.THURSDAY...Partly cloudy. Highs in the 70s. South winds 7 to
12 mph with gusts to around 20 mph. 
.THURSDAY NIGHT...Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the 50s. Southeast winds 7 to
12 mph. Chance of precipitation 50 percent. 
.FRIDAY...Showers likely and chance of thunderstorms. Highs 70 to
75. Southwest winds 11 to 16 mph with gusts to around 25 mph.
Chance of precipitation 70 percent. 
.FRIDAY NIGHT...Partly cloudy. Chance of showers and
thunderstorms. Lows 45 to 50. West winds 8 to 13 mph with gusts
to around 21 mph. Chance of precipitation 40 percent. 
.SATURDAY...Partly cloudy. Highs in the 70s. Southwest winds 6 to
11 mph with gusts to around 19 mph. 
.SATURDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the 50s. Southeast winds 5 to 10 mph.
Chance of precipitation 20 percent. 
.SUNDAY...Partly sunny. Chance of showers and slight chance of
thunderstorms. Highs in the 70s. Southeast winds 7 to 12 mph with
gusts to around 20 mph. Chance of precipitation 40 percent.