434
FNUS53 KGRR 171833
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
233 PM EDT FRI JUL 17 2026
..WIDESPREAD SMOKE WITH SCATTERED SHOWERS AND STORMS
DISCUSSION
WIDESPREAD SMOKE IS EXPECTED TO BE PUSHED OUT OF THE AREA
TONIGHT AS WINDS BECOME SOUTHWESTERLY. SCATTERED SHOWERS AND
STORMS ARE EXPECTED THIS AFTERNOON AND EVENING, MAINLY NEAR
AND SOUTH OF I96. LITTLE TO NO SMOKE IS EXPECTED SATURDAY
MORNING, BUT IT WILL INCREASE LATER IN THE DAY BEHIND A COLD
FRONT.
MIZ037>039-043>045-180830-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
233 PM EDT FRI JUL 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). SMOKE UNTIL 7
PM, THEN PATCHY SMOKE UNTIL 1 AM. CHANCE OF
SHOWERS AFTER 4 AM. SLIGHT CHANCE OF
THUNDERSTORMS AFTER 5 AM.
CHANCE OF PCPN......30 PERCENT LATE IN THE NIGHT.
MIN TEMPERATURE.....67-72.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........92-97 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 6 TO 11 MPH. GUSTS UP TO 21 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1500-2000 FT AGL.
MIXING HEIGHT.......INLAND, 4400-4900 FT AGL DECREASING TO 300-800
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....100-660 (POOR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.19 IN.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). CHANCE OF SHOWERS
AND THUNDERSTORMS UNTIL 11 AM.
CHANCE OF PCPN......30 PERCENT IN THE MORNING.
MAX TEMPERATURE.....82-87.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........44-49 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 26 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2900-3400 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL INCREASING TO
4600-5100 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH.
SMOKE DISPERSAL.....600-1120 (EXCELLENT).
PCPN AMOUNT.........NONE TO 0.15 IN.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....52-57.
24 HR TREND......16 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS AROUND 11 MPH AND GUSTY IN THE
EVENING BECOMING LIGHT.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2400-2900 FT AGL.
MIXING HEIGHT.......INLAND, 3700-4200 FT AGL DECREASING TO 100-600
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
SMOKE DISPERSAL.....900 (EXCELLENT) DECREASING TO 60 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....80-85.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........47-52 PERCENT NEAR LAKE MICHIGAN AND 36-41
PERCENT INLAND.
24 HR TREND......7 PERCENT DRIER NEAR LAKE MICHIGAN AND 14
PERCENT DRIER INLAND.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3900-4400 FT AGL.
MIXING HEIGHT.......INLAND, 3700-4200 FT AGL INCREASING TO
7600-8100 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....280-710 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ040-046-180830-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
233 PM EDT FRI JUL 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT). SMOKE UNTIL 8
PM, THEN PATCHY SMOKE UNTIL 2 AM.
MIN TEMPERATURE.....67-72.
24 HR TREND......15 DEGREES WARMER.
MAX HUMIDITY........92-97 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTS UP TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......4500-5000 FT AGL DECREASING TO 300-800 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....110-660 (POOR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.01 IN.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER 8 AM UNTIL 12 PM.
CHANCE OF PCPN......30 PERCENT IN THE MORNING.
MAX TEMPERATURE.....83-88.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........43-48 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......2800-3300 FT AGL INCREASING TO 5100-5600 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH.
SMOKE DISPERSAL.....700-1200 (EXCELLENT).
PCPN AMOUNT.........NONE TO 0.03 IN.
SATURDAY NIGHT
SKY/WEATHER.........CLEAR (0-10 PERCENT).
MIN TEMPERATURE.....50-55.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS AROUND 12 MPH AND GUSTY IN THE
EVENING BECOMING LIGHT.
MIXING HEIGHT.......3900-4400 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
SMOKE DISPERSAL.....980 (EXCELLENT) DECREASING TO 60 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 83.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........32-37 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......NORTH WINDS UP TO 5 MPH.
MIXING HEIGHT.......3600-4100 FT AGL INCREASING TO 7900-8400 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
SMOKE DISPERSAL.....280-690 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-180830-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
233 PM EDT FRI JUL 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). AREAS OF SMOKE
UNTIL 9 PM.
MIN TEMPERATURE.....70-75.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1700-2200 FT AGL.
MIXING HEIGHT.......INLAND, 4200-4700 FT AGL DECREASING TO 200-700
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....90-600 (POOR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.10 IN.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS AFTER 7 AM
UNTIL 3 PM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....83-88.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........46-51 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3200-3700 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL INCREASING TO
4700-5200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....630-990 (EXCELLENT).
PCPN AMOUNT.........NONE TO 0.13 IN.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....57-62.
24 HR TREND......14 DEGREES COOLER.
MAX HUMIDITY........91-96 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS 6 TO 11 MPH. GUSTS UP TO 23 MPH IN
THE EVENING.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3000-3500 FT AGL DECREASING
TO 300-800 FT AGL AFTER MIDNIGHT.
MIXING HEIGHT.......INLAND, 4000-4500 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
SMOKE DISPERSAL.....850 (EXCELLENT) DECREASING TO 70 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE TO 0.01 IN.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....80-85.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........37-42 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 4300-4800 FT AGL.
MIXING HEIGHT.......INLAND, 3700-4200 FT AGL INCREASING TO
6900-7400 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE NORTH IN
THE AFTERNOON.
SMOKE DISPERSAL.....280-540 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ051-052-057>059-180830-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
233 PM EDT FRI JUL 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS UNTIL 9 PM. PATCHY
SMOKE UNTIL 1 AM.
CHANCE OF PCPN......30 PERCENT EARLY IN THE EVENING.
MIN TEMPERATURE.....AROUND 73.
24 HR TREND......12 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 7 TO 12 MPH. GUSTS UP TO 20 MPH
AFTER MIDNIGHT.
MIXING HEIGHT.......4700-5200 FT AGL DECREASING TO 200-700 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....100-640 (POOR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.15 IN.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER 8 AM UNTIL 2 PM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....85-90.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........42-47 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 13 TO 18 MPH WITH GUSTS TO AROUND 28
MPH.
MIXING HEIGHT.......3200-3700 FT AGL INCREASING TO 5300-5800 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
SMOKE DISPERSAL.....800-1210 (EXCELLENT).
PCPN AMOUNT.........NONE TO 0.18 IN.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....56-61.
24 HR TREND......12 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS 8 TO 13 MPH. GUSTS UP TO 26 MPH IN
THE EVENING.
MIXING HEIGHT.......4400-4900 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
SMOKE DISPERSAL.....990 (EXCELLENT) DECREASING TO 60 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....81-86.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........33-38 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......3600-4100 FT AGL INCREASING TO 7800-8300 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
SMOKE DISPERSAL.....310-520 (GOOD).
PCPN AMOUNT.........NONE.
MIZ065>067-072>074-180830-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
233 PM EDT FRI JUL 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS UNTIL 10 PM. PATCHY
SMOKE UNTIL 1 AM.
CHANCE OF PCPN......30 PERCENT IN THE EVENING.
MIN TEMPERATURE.....AROUND 71.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......5400-5900 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
SMOKE DISPERSAL.....710 (EXCELLENT) DECREASING TO 80 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE TO 0.18 IN.
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT) UNTIL 9 AM, THEN
MOSTLY SUNNY (30-40 PERCENT). CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER 10 AM UNTIL 4 PM.
CHANCE OF PCPN......30 PERCENT IN THE LATE MORNING AND
AFTERNOON.
MAX TEMPERATURE.....86-91.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........43-48 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......5200-5700 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....880-1180 (EXCELLENT).
PCPN AMOUNT.........NONE TO 0.08 IN.
SATURDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 60.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS 6 TO 11 MPH. GUSTS UP TO 22 MPH IN
THE EVENING.
MIXING HEIGHT.......4400-4900 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
SMOKE DISPERSAL.....1030 (EXCELLENT) DECREASING TO 60 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE TO 0.01 IN.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 82.
24 HR TREND......7 DEGREES COOLER.
MIN HUMIDITY........32-37 PERCENT.
24 HR TREND......12 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......2900-3400 FT AGL INCREASING TO 6600-7100 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....260-480 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. WEST WINDS 5 TO 6 MPH
SHIFTING TO THE SOUTH UP TO 5 MPH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS IN
THE MID 80S. SOUTHWEST WINDS 7 TO 12 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH SHOWERS AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 60S. SOUTHWEST WINDS 8 TO 13 MPH.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
80S. WEST WINDS 8 TO 13 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS 8 TO 13 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
8 TO 13 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page