398
FNUS53 KGRR 160803
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
403 AM EDT THU JUL 16 2026
..WIDESPREAD SMOKE THURSDAY
DISCUSSION
WIDESPREAD SMOKE IS EXPECTED ACROSS SOUTHWEST MICHIGAN TODAY
THANKS TO WILDFIRES ACROSS CANADA. VISIBILITIES BELOW 3 MILES,
POTENTIALLY BELOW 1 MILE AT TIMES, ARE LIKELY MUCH OF THE DAY.
MINRHS LIKELY FALL INTO THE 30S, WITH SOME UNCERTAINTY AS TO
HOW LOW THEY GET GIVEN THE POTENTIAL FOR SMOKE TO COOL
TEMPERATURES A FEW DEGREES BELOW FORECAST. EXPECT DRY CONDITIONS
TODAY.
MIZ037>039-043>045-162030-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
403 AM EDT THU JUL 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SMOKE.
MAX TEMPERATURE.....88-93.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........38-43 PERCENT NEAR LAKE MICHIGAN AND 28-33
PERCENT INLAND.
24 HR TREND......8 PERCENT DRIER NEAR LAKE MICHIGAN AND 11
PERCENT DRIER INLAND.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 6 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2600-3100 FT AGL.
MIXING HEIGHT.......INLAND, 2200-2700 FT AGL INCREASING TO
6200-6700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....290-720 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE.
MIN TEMPERATURE.....59-64.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........76-81 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......NORTH WINDS AROUND 6 MPH SHIFTING TO THE EAST
AROUND 5 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1200-1700 FT AGL.
MIXING HEIGHT.......INLAND, 5700-6200 FT AGL DECREASING TO 0-400 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
SMOKE DISPERSAL.....650 (EXCELLENT) DECREASING TO 50 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SMOKE UNTIL 8 AM.
MAX TEMPERATURE.....87-92.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........50-55 PERCENT NEAR LAKE MICHIGAN AND 41-46
PERCENT INLAND.
24 HR TREND......7 PERCENT WETTER NEAR LAKE MICHIGAN AND 12
PERCENT WETTER INLAND.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO THE
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
7000-7500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
SMOKE DISPERSAL.....220-730 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.01 IN.
MIZ040-046-162030-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
403 AM EDT THU JUL 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SMOKE.
MAX TEMPERATURE.....87-92.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........27-32 PERCENT.
24 HR TREND......13 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2500-3000 FT AGL INCREASING TO 6900-7400 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
SMOKE DISPERSAL.....340-800 (GOOD TO EXCELLENT).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE.
MIN TEMPERATURE.....58-63.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........79-84 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......NORTH WINDS AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......6600-7100 FT AGL DECREASING TO 0-400 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
SMOKE DISPERSAL.....730 (EXCELLENT) DECREASING TO 40 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SMOKE UNTIL 8 AM.
MAX TEMPERATURE.....87-92.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........40-45 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH AROUND 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 6300-6800 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
SMOKE DISPERSAL.....220-710 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.01 IN.
MIZ050-056-064-071-162030-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
403 AM EDT THU JUL 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SMOKE.
MAX TEMPERATURE.....89-94.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........31-36 PERCENT.
24 HR TREND......25 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3300-3800 FT AGL.
MIXING HEIGHT.......INLAND, 2200-2700 FT AGL INCREASING TO
6100-6600 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE NORTH IN
THE AFTERNOON.
SMOKE DISPERSAL.....180-470 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE.
MIN TEMPERATURE.....67-72.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........79-84 PERCENT.
24 HR TREND......22 PERCENT DRIER.
20-FOOT WINDS.......NORTH WINDS AROUND 5 MPH IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1400-1900 FT AGL.
MIXING HEIGHT.......INLAND, 5400-5900 FT AGL DECREASING TO 0-400 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
SMOKE DISPERSAL.....50-430 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). SMOKE UNTIL 8 AM.
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 2 PM.
CHANCE OF PCPN......30 PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....88-93.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........41-46 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AROUND 7 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2900-3400 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL INCREASING TO
7000-7500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
SMOKE DISPERSAL.....270-810 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.30 IN.
MIZ051-052-057>059-162030-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
403 AM EDT THU JUL 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). SMOKE.
MAX TEMPERATURE.....90-95.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........28-33 PERCENT.
24 HR TREND......16 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2200-2700 FT AGL INCREASING TO 6800-7300 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
SMOKE DISPERSAL.....210-650 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE.
MIN TEMPERATURE.....65-70.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........79-84 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......6700-7200 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
SMOKE DISPERSAL.....640 (EXCELLENT) DECREASING TO 50 (POOR) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SMOKE UNTIL 8 AM.
MAX TEMPERATURE.....AROUND 92.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........39-44 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH AROUND 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2300-2800 FT AGL INCREASING TO 7200-7700 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
SMOKE DISPERSAL.....240-770 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.02 IN.
MIZ065>067-072>074-162030-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
403 AM EDT THU JUL 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). SMOKE.
MAX TEMPERATURE.....AROUND 91.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........26-31 PERCENT.
24 HR TREND......20 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......1900-2400 FT AGL INCREASING TO 5900-6400 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....170-510 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SMOKE.
MIN TEMPERATURE.....AROUND 67.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........82-87 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......5900-6400 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE SOUTHEAST
AFTER MIDNIGHT.
SMOKE DISPERSAL.....40-450 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). SMOKE UNTIL 8 AM.
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER 2 PM.
CHANCE OF PCPN......30 PERCENT IN THE AFTERNOON.
MAX TEMPERATURE.....88-93.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........38-43 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS 5 TO 9 MPH.
MIXING HEIGHT.......2100-2600 FT AGL INCREASING TO 6500-7000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
SMOKE DISPERSAL.....270-650 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE TO 0.18 IN.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 80S. WEST WINDS 8 TO
13 MPH.
SATURDAY NIGHT
COOLER. MOSTLY CLEAR. CHANCE OF SHOWERS IN THE
EVENING. LOWS AROUND 60. NORTH WINDS 7 TO 12 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS 5 TO 9 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHWEST WINDS
5 TO 6 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS 6 TO
11 MPH.
MONDAY NIGHT
PARTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
TUESDAY NIGHT
MOSTLY CLEAR. CHANCE OF SHOWERS IN THE EVENING.
LOWS IN THE UPPER 50S.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S.
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