Tue May 21 03:59:41 EDT 2024

Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia, 
and St. Johns
359 AM EDT Tue May 21 2024

.TODAY...
Sky/weather.........Mostly sunny (45-55 percent). Patchy fog until 
                    9 AM. Slight chance of showers and 
                    thunderstorms after 2 PM. 
Chance of pcpn......20 percent in the afternoon. 
Max temperature.....82-87. 
   24 hr trend......7 degrees warmer. 
Min humidity........43-48 percent. 
   24 hr trend......7 percent drier. 
20-foot winds.......Light winds becoming south around 9 mph in the 
                    afternoon. 
Haines Index........4 or low potential for large plume dominated 
                    fire growth. 
Mixing height.......3100-3600 ft AGL increasing to 5600-6100 ft AGL 
                    in the afternoon. 
Transport winds.....West around 5 mph shifting to the south in the 
                    afternoon. 
Smoke dispersal.....250-750 (fair to excellent). 
Pcpn Amount.........none to 0.06 in. 

.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent) until 2 AM, then 
                    mostly cloudy (70-80 percent). Slight chance of 
                    showers after 11 PM until 2 AM. Chance of 
                    thunderstorms after 11 PM. Showers likely after 
                    2 AM. 
Chance of pcpn......70 percent after midnight. 
Min temperature.....62-67. 
   24 hr trend......12 degrees warmer. 
Max humidity........85-90 percent. 
   24 hr trend......Unchanged. 
20-foot winds.......South winds 11 to 16 mph with gusts to around 
                    27 mph. 
Haines Index........4 or low potential for large plume dominated 
                    fire growth. 
Mixing height.......1400-1900 ft AGL. 
Transport winds.....South 15 to 20 mph. 
Smoke dispersal.....310-380 (good). 
Pcpn Amount.........0.07-0.41 in. 

.WEDNESDAY...
Sky/weather.........Mostly sunny (35-45 percent). 
Max temperature.....74-79. 
   24 hr trend......12 degrees cooler. 
Min humidity........37-42 percent. 
   24 hr trend......3 percent drier. 
20-foot winds.......Southwest winds 15 to 20 mph with gusts to 
                    around 28 mph. 
Haines Index........4 or low potential for large plume dominated 
                    fire growth. 
Mixing height.......3800-4300 ft AGL. 
Transport winds.....Southwest 20 to 25 mph. 
Smoke dispersal.....980-1020 (excellent). 
Pcpn Amount.........None.