Thu May 2 15:27:42 EDT 2024 Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Muskegon, Grand Haven, Jenison, Holland, and South Haven 327 PM EDT Thu May 2 2024 .TONIGHT... Sky/weather.........Cloudy (85-95 percent). Chance of rain showers until 10 PM. Chance of thunderstorms. Rain showers after 10 PM. Chance of pcpn......80 percent. Min temperature.....49-54. 24 hr trend......9 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......South winds 6 to 11 mph. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......500-1000 ft AGL. Transport winds.....South 10 to 15 mph. Smoke dispersal.....60-100 (poor). Pcpn Amount.........0.23-0.66 in. .FRIDAY... Sky/weather.........Mostly cloudy (65-75 percent) until 5 PM, then mostly sunny (30-40 percent). Rain showers likely and a chance of thunderstorms until 11 AM, then a chance of rain showers until 5 PM. Chance of pcpn......60 percent. Max temperature.....66-71. 24 hr trend......11 degrees cooler. Min humidity........42-47 percent. 24 hr trend......23 percent wetter. 20-foot winds.......Northwest winds 5 to 10 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......1800-2300 ft AGL near Lake Michigan and 3100-3600 ft AGL Inland. Transport winds.....Northwest around 10 mph. Smoke dispersal.....290-540 (fair to good). Pcpn Amount.........0.01-0.22 in. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....47-52. 24 hr trend......6 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northeast winds 5 to 8 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......400-900 ft AGL. Transport winds.....Northeast around 10 mph. Smoke dispersal.....50-60 (poor). Pcpn Amount.........None. .SATURDAY... Sky/weather.........Mostly sunny (45-55 percent). Max temperature.....73-78. 24 hr trend......7 degrees warmer. Min humidity........49-54 percent. 24 hr trend......8 percent drier. 20-foot winds.......East winds around 8 mph shifting to the south in the afternoon. Haines Index........4 or low potential for large plume dominated fire growth. Mixing height.......2400-2900 ft AGL near Lake Michigan and 3900-4400 ft AGL Inland. Transport winds.....Southeast around 10 mph. Smoke dispersal.....470-480 (good). Pcpn Amount.........None.