375
FNUS53 KGRR 061837
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
237 PM EDT THU AUG 6 2026
..ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS
DISCUSSION
SCATTERED (20 TO 30 PERCENT CHANCE OF) SHOWERS AND THUNDERSTORMS WILL
BE POSSIBLE THIS AFTERNOON AND EARLY EVENING. ANY THUNDERSTORM
WILL BE CAPABLE OF BRIEF HEAVY DOWNPOURS.
THERE IS A GOOD CHANCE FOR MORNING FOG ONCE AGAIN FRIDAY. AFTERWARDS,
WINDS WILL BE A LITTLE STRONGER FRIDAY AFTERNOON AROUND 5 TO 15 MPH
FROM THE SOUTHWEST. SIMILAR CHANCES FOR SHOWERS AND THUNDERSTORMS
ARE EXPECTED. MINIMUM RELATIVE HUMIDITY VALUES WILL BE ABOVE 40
PERCENT THROUGH THE WEEKEND.
MIZ037>039-043>045-070830-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
237 PM EDT THU AUG 6 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). PATCHY FOG AFTER
4 AM.
MIN TEMPERATURE.....58-63.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1300-1800 FT AGL.
MIXING HEIGHT.......INLAND, 4200-4700 FT AGL DECREASING TO 500-1000
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
SMOKE DISPERSAL.....30-300 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.06 IN.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) UNTIL 3 PM, THEN
SUNNY (15-25 PERCENT). PATCHY FOG UNTIL 10 AM.
CHANCE OF RAIN SHOWERS AFTER 8 AM UNTIL 4 PM.
SLIGHT CHANCE OF THUNDERSTORMS AFTER 2 PM UNTIL
4 PM.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........67-72 PERCENT NEAR LAKE MICHIGAN AND 59-64
PERCENT INLAND.
24 HR TREND......8 PERCENT WETTER NEAR LAKE MICHIGAN AND 9
PERCENT WETTER INLAND.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHWEST AROUND 7 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2400-2900 FT AGL.
MIXING HEIGHT.......INLAND, 2100-2600 FT AGL INCREASING TO
4100-4600 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....240-540 (FAIR TO GOOD).
PCPN AMOUNT.........NONE TO 0.06 IN.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) UNTIL 3 AM, THEN
MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
SHOWERS AFTER 3 AM.
CHANCE OF PCPN......30 PERCENT IN THE LATE EVENING AND
OVERNIGHT.
MIN TEMPERATURE.....61-66.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........99 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1400-1900 FT AGL.
MIXING HEIGHT.......INLAND, 3300-3800 FT AGL DECREASING TO 100-600
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....60-490 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.06 IN.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 9 AM, THEN
SUNNY (15-25 PERCENT). SHOWERS LIKELY UNTIL 7
AM. CHANCE OF SHOWERS AFTER 7 AM UNTIL 8 AM.
CHANCE OF PCPN......60 PERCENT EARLY IN THE MORNING.
MAX TEMPERATURE.....77-82.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........52-57 PERCENT NEAR LAKE MICHIGAN AND 42-47
PERCENT INLAND.
24 HR TREND......21 PERCENT DRIER NEAR LAKE MICHIGAN AND 19
PERCENT DRIER INLAND.
20-FOOT WINDS.......NORTHWEST WINDS 6 TO 11 MPH. GUSTS UP TO 21 MPH
IN THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2900-3400 FT AGL.
MIXING HEIGHT.......INLAND, 2700-3200 FT AGL INCREASING TO
5100-5600 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....500-970 (GOOD TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.03 IN.
MIZ040-046-070830-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
237 PM EDT THU AUG 6 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT). PATCHY FOG AFTER
4 AM.
MIN TEMPERATURE.....57-62.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......3800-4300 FT AGL DECREASING TO 400-900 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
SMOKE DISPERSAL.....30-310 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.01 IN.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). PATCHY FOG UNTIL
10 AM. CHANCE OF RAIN SHOWERS AFTER 7 AM
UNTIL 5 PM. CHANCE OF THUNDERSTORMS AFTER 2 PM
UNTIL 5 PM.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 83.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........58-63 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHWEST AROUND 7 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......4000-4500 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....270-530 (FAIR TO GOOD).
PCPN AMOUNT.........NONE TO 0.04 IN.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....60-65.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......3300-3800 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....60-440 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.01 IN.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) UNTIL 12 PM, THEN
SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....79-84.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........41-46 PERCENT.
24 HR TREND......21 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 7 TO 12 MPH.
MIXING HEIGHT.......2900-3400 FT AGL INCREASING TO 6500-7000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....490 (GOOD) INCREASING TO 1100 (EXCELLENT) IN
THE AFTERNOON.
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-070830-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
237 PM EDT THU AUG 6 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 9 PM, THEN
PARTLY CLOUDY (55-65 PERCENT). CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
UNTIL 8 PM. SLIGHT CHANCE OF THUNDERSTORMS
AFTER 11 PM UNTIL 2 AM. SLIGHT CHANCE OF
SHOWERS AFTER 11 PM UNTIL 4 AM. PATCHY FOG
AFTER 4 AM.
CHANCE OF PCPN......30 PERCENT.
MIN TEMPERATURE.....AROUND 64.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS UP TO 5 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1200-1700 FT AGL.
MIXING HEIGHT.......INLAND, 3100-3600 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....40-210 (POOR TO FAIR).
PCPN AMOUNT.........NONE TO 0.04 IN.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). PATCHY FOG UNTIL
10 AM.
MAX TEMPERATURE.....78-83.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........67-72 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHWEST AROUND 8 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......1600-2100 FT AGL NEAR LAKE MICHIGAN AND
3400-3900 FT AGL INLAND.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....180-430 (FAIR TO GOOD).
PCPN AMOUNT.........NONE TO 0.05 IN.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) UNTIL 3 AM, THEN
MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF
SHOWERS AFTER 2 AM.
CHANCE OF PCPN......40 PERCENT AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 66.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 900-1400 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL DECREASING TO 100-600
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....70-320 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.05 IN.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT) UNTIL 3 PM, THEN
SUNNY (5-15 PERCENT). CHANCE OF SHOWERS UNTIL
11 AM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....76-81.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........56-61 PERCENT NEAR LAKE MICHIGAN AND 48-53
PERCENT INLAND.
24 HR TREND......13 PERCENT DRIER NEAR LAKE MICHIGAN AND 16
PERCENT DRIER INLAND.
20-FOOT WINDS.......WEST WINDS 7 TO 12 MPH. GUSTS UP TO 21 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3200-3700 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL INCREASING TO
4900-5400 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....410-820 (GOOD TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.03 IN.
MIZ051-052-057>059-070830-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
237 PM EDT THU AUG 6 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL 12 AM, THEN
PARTLY CLOUDY (50-60 PERCENT). CHANCE OF
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.
PATCHY FOG AFTER 4 AM.
CHANCE OF PCPN......30 PERCENT EARLY IN THE EVENING THEN
PRECIPITATION 20 PERCENT AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 65.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS UP TO 5 MPH.
MIXING HEIGHT.......3600-4100 FT AGL DECREASING TO 800-1300 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
SMOKE DISPERSAL.....40-310 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.06 IN.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). PATCHY FOG UNTIL
10 AM. CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER 11 AM.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 83.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........61-66 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......3900-4400 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....300-510 (GOOD).
PCPN AMOUNT.........NONE TO 0.08 IN.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). CHANCE OF
SHOWERS.
CHANCE OF PCPN......30 PERCENT EARLY IN THE MORNING.
MIN TEMPERATURE.....AROUND 67.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......3400-3900 FT AGL DECREASING TO 300-800 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....70-420 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.05 IN.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT) UNTIL 3 PM, THEN
SUNNY (5-15 PERCENT). CHANCE OF SHOWERS UNTIL 2
PM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....80-85.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........42-47 PERCENT.
24 HR TREND......20 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 9 TO 14 MPH. GUSTS UP TO 24 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2500-3000 FT AGL INCREASING TO 6400-6900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....420 (GOOD) INCREASING TO 1050 (EXCELLENT) IN
THE AFTERNOON.
PCPN AMOUNT.........NONE TO 0.02 IN.
MIZ065>067-072>074-070830-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
237 PM EDT THU AUG 6 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL 12 AM, THEN
PARTLY CLOUDY (55-65 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS UNTIL 9 PM. SLIGHT
CHANCE OF THUNDERSTORMS AFTER 11 PM UNTIL 2 AM.
CHANCE OF SHOWERS AFTER 11 PM. PATCHY FOG
AFTER 4 AM.
CHANCE OF PCPN......50 PERCENT.
MIN TEMPERATURE.....AROUND 66.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS UP TO 5 MPH.
MIXING HEIGHT.......3000-3500 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....40-300 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.09 IN.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). PATCHY FOG UNTIL
10 AM. CHANCE OF SHOWERS AND THUNDERSTORMS
AFTER 2 PM.
CHANCE OF PCPN......30 PERCENT.
MAX TEMPERATURE.....AROUND 83.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........63-68 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHWEST AROUND 8 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......3600-4100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....270-490 (FAIR TO GOOD).
PCPN AMOUNT.........NONE TO 0.09 IN.
FRIDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 67.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......3200-3700 FT AGL DECREASING TO 300-800 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....50-390 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.12 IN.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) UNTIL 12 PM, THEN
MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....80-85.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........42-47 PERCENT.
24 HR TREND......18 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 8 TO 13 MPH. GUSTS UP TO 22 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2200-2700 FT AGL INCREASING TO 5200-5700 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
SMOKE DISPERSAL.....350 (GOOD) INCREASING TO 940 (EXCELLENT) IN THE
AFTERNOON.
PCPN AMOUNT.........NONE TO 0.03 IN.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
5 TO 7 MPH.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 6 TO 11 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S. SOUTHWEST WINDS 5 TO 7 MPH.
MONDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
IN THE LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH SHOWERS LIKELY. CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. WEST WINDS 5 TO 10 MPH.
TUESDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
WEST WINDS 5 TO 9 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS IN THE EVENING.
LOWS IN THE UPPER 50S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
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