528
FNUS53 KGRR 171853
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
253 PM EDT FRI APR 17 2026
..SHOWERS AND THUNDERSTORMS TONIGHT
DISCUSSION
SHOWERS AND THUNDERSTORMS ARRIVE LATE THIS EVENING AND
CONTINUE THROUGH DAYBREAK SATURDAY. WIDESPREAD RAINFALL OF
0.25-0.75 INCHES IS EXPECTED WITH ISOLATED POCKETS AS HIGH AS
1.5 INCHES. CONDITIONS DRY OUT SATURDAY INTO EARLY NEXT WEEK
WITH MINRHS IN THE UPPER 40S TO LOW 50S SATURDAY. THIS WILL
BE PAIRED WITH GUSTY WINDS OF 30-35 MPH.
MIZ037>039-043>045-180815-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
253 PM EDT FRI APR 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) UNTIL 9 PM, THEN
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS AFTER 7 PM UNTIL 10 PM. CHANCE OF
THUNDERSTORMS AFTER 8 PM. RAIN SHOWERS AFTER 10
PM.
CHANCE OF PCPN......90 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
26 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1500-2000 FT AGL.
MIXING HEIGHT.......INLAND, 2600-3100 FT AGL DECREASING TO 600-1100
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.
SMOKE DISPERSAL.....170-580 (FAIR TO GOOD).
PCPN AMOUNT.........0.22-0.68 IN.
SATURDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) UNTIL 12 PM, THEN PARTLY
SUNNY (45-55 PERCENT). RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL 8 AM, THEN
A CHANCE OF RAIN SHOWERS UNTIL 12 PM.
CHANCE OF PCPN......80 PERCENT IN THE MORNING.
MAX TEMPERATURE.....53-58.
24 HR TREND......26 DEGREES COOLER.
MIN HUMIDITY........55-60 PERCENT NEAR LAKE MICHIGAN AND 45-50
PERCENT INLAND.
24 HR TREND......2 PERCENT DRIER NEAR LAKE MICHIGAN AND 6
PERCENT DRIER INLAND.
20-FOOT WINDS.......WEST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 27
MPH.
MIXING HEIGHT.......2200-2700 FT AGL INCREASING TO 4700-5200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....590 (GOOD) INCREASING TO 1420 (EXCELLENT) IN
THE AFTERNOON.
PCPN AMOUNT.........0.05-0.17 IN.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....28-33.
24 HR TREND......9 DEGREES COOLER.
MAX HUMIDITY........70-75 PERCENT.
24 HR TREND......28 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 8 TO 13 MPH AND GUSTY.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 4000-4500 FT AGL.
MIXING HEIGHT.......INLAND, 5000-5500 FT AGL DECREASING TO
2800-3300 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH
AFTER MIDNIGHT.
SMOKE DISPERSAL.....1530 (EXCELLENT) DECREASING TO 670 (EXCELLENT)
AFTER MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....41-46.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........46-51 PERCENT NEAR LAKE MICHIGAN AND 34-39
PERCENT INLAND.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 9 TO 14 MPH. GUSTS UP TO 24 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......5700-6200 FT AGL NEAR LAKE MICHIGAN AND
7800-8300 FT AGL INLAND.
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO NORTHWEST
AROUND 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....1940-2210 (EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ040-046-180815-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
253 PM EDT FRI APR 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) UNTIL 12 AM, THEN
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS AFTER 11 PM UNTIL 1 AM. CHANCE OF
THUNDERSTORMS AFTER 11 PM. RAIN SHOWERS AFTER 1
AM.
CHANCE OF PCPN......90 PERCENT IN THE LATE EVENING AND
OVERNIGHT.
MIN TEMPERATURE.....40-45.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS 9 TO 14 MPH AND GUSTY.
MIXING HEIGHT.......2500-3000 FT AGL DECREASING TO 400-900 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
SMOKE DISPERSAL.....150-550 (FAIR TO GOOD).
PCPN AMOUNT.........0.14-0.34 IN.
SATURDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) UNTIL 12 PM, THEN PARTLY
SUNNY (55-65 PERCENT). SLIGHT CHANCE OF
THUNDERSTORMS UNTIL 8 AM. RAIN SHOWERS UNTIL 9
AM, THEN A CHANCE OF RAIN SHOWERS UNTIL 12 PM.
CHANCE OF PCPN......80 PERCENT IN THE MORNING.
MAX TEMPERATURE.....57-62.
24 HR TREND......13 DEGREES COOLER.
MIN HUMIDITY........48-53 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 11 TO 16 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......1700-2200 FT AGL INCREASING TO 4800-5300 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....550 (GOOD) INCREASING TO 1380 (EXCELLENT) IN
THE AFTERNOON.
PCPN AMOUNT.........0.09-0.17 IN.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....28-33.
24 HR TREND......14 DEGREES COOLER.
MAX HUMIDITY........70-75 PERCENT.
24 HR TREND......28 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 8 TO 13 MPH. GUSTS UP TO 24 MPH IN
THE EVENING.
MIXING HEIGHT.......4700-5200 FT AGL DECREASING TO 2300-2800 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH
AFTER MIDNIGHT.
SMOKE DISPERSAL.....1440 (EXCELLENT) DECREASING TO 530 (GOOD) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....42-47.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........37-42 PERCENT.
24 HR TREND......12 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......8500-9000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO NORTHWEST
AROUND 25 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....2000-2300 (EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-180815-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
253 PM EDT FRI APR 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT) UNTIL 12 AM, THEN
MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS AFTER 8 PM UNTIL 10 PM. CHANCE OF
THUNDERSTORMS AFTER 8 PM. RAIN SHOWERS AFTER 10
PM. PATCHY FOG AFTER 3 AM UNTIL 5 AM.
CHANCE OF PCPN......80 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
27 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1400-1900 FT AGL.
MIXING HEIGHT.......INLAND, 2700-3200 FT AGL DECREASING TO 600-1100
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.
SMOKE DISPERSAL.....210-590 (FAIR TO GOOD).
PCPN AMOUNT.........0.25-0.57 IN.
SATURDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT) UNTIL 12 PM, THEN MOSTLY
SUNNY (40-50 PERCENT). RAIN SHOWERS LIKELY
UNTIL 7 AM. SLIGHT CHANCE OF THUNDERSTORMS
UNTIL 8 AM. CHANCE OF RAIN SHOWERS AFTER 7 AM
UNTIL 11 AM.
CHANCE OF PCPN......60 PERCENT IN THE MORNING.
MAX TEMPERATURE.....52-57.
24 HR TREND......27 DEGREES COOLER.
MIN HUMIDITY........49-54 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS 13 TO 18 MPH WITH GUSTS TO AROUND 29
MPH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 4400-4900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
SMOKE DISPERSAL.....600 (EXCELLENT) INCREASING TO 1340 (EXCELLENT)
IN THE AFTERNOON.
PCPN AMOUNT.........0.06-0.19 IN.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....33-38.
24 HR TREND......9 DEGREES COOLER.
MAX HUMIDITY........70-75 PERCENT.
24 HR TREND......28 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 8 TO 13 MPH. GUSTS UP TO 22 MPH IN
THE EVENING.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3600-4100 FT AGL.
MIXING HEIGHT.......INLAND, 4500-5000 FT AGL DECREASING TO
2400-2900 FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....1420 (EXCELLENT) DECREASING TO 620 (EXCELLENT)
AFTER MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....45-50.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........40-45 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......5700-6200 FT AGL NEAR LAKE MICHIGAN AND
8000-8500 FT AGL INLAND.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
SMOKE DISPERSAL.....2240-2390 (EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ051-052-057>059-180815-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
253 PM EDT FRI APR 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) UNTIL 12 AM, THEN
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS AFTER 10 PM UNTIL 1 AM. CHANCE OF
THUNDERSTORMS AFTER 10 PM. RAIN SHOWERS AFTER 1
AM.
CHANCE OF PCPN......90 PERCENT IN THE LATE EVENING AND
OVERNIGHT.
MIN TEMPERATURE.....43-48.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS 12 TO 17 MPH WITH GUSTS TO AROUND
28 MPH.
MIXING HEIGHT.......2700-3200 FT AGL DECREASING TO 600-1100 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTH AROUND 20 MPH.
SMOKE DISPERSAL.....210-580 (FAIR TO GOOD).
PCPN AMOUNT.........0.12-0.56 IN.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT) UNTIL 3 PM, THEN
MOSTLY SUNNY (35-45 PERCENT). CHANCE OF
THUNDERSTORMS UNTIL 8 AM. RAIN SHOWERS LIKELY
UNTIL 9 AM, THEN A CHANCE OF RAIN SHOWERS UNTIL
12 PM.
CHANCE OF PCPN......60 PERCENT IN THE MORNING.
MAX TEMPERATURE.....58-63.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........47-52 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 31
MPH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 4300-4800 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
SMOKE DISPERSAL.....600 (EXCELLENT) INCREASING TO 1350 (EXCELLENT)
IN THE AFTERNOON.
PCPN AMOUNT.........0.10-0.20 IN.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 33.
24 HR TREND......15 DEGREES COOLER.
MAX HUMIDITY........73-78 PERCENT.
24 HR TREND......28 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 26
MPH.
MIXING HEIGHT.......4500-5000 FT AGL DECREASING TO 1900-2400 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST AROUND 25 MPH DECREASING TO AROUND 15 MPH
AFTER MIDNIGHT.
SMOKE DISPERSAL.....1420 (EXCELLENT) DECREASING TO 320 (GOOD) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 46.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........36-41 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 12 TO 17 MPH WITH GUSTS TO AROUND 29
MPH.
MIXING HEIGHT.......9100-9600 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH INCREASING TO AROUND 25 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....2140-2570 (EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ065>067-072>074-180815-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
253 PM EDT FRI APR 17 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) UNTIL 3 AM, THEN
MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS AFTER 11 PM UNTIL 2 AM. CHANCE OF
THUNDERSTORMS AFTER 11 PM. RAIN SHOWERS AFTER 2
AM.
CHANCE OF PCPN......90 PERCENT IN THE LATE EVENING AND
OVERNIGHT.
MIN TEMPERATURE.....43-48.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
26 MPH.
MIXING HEIGHT.......2600-3100 FT AGL.
TRANSPORT WINDS.....SOUTH 15 TO 20 MPH.
SMOKE DISPERSAL.....220-530 (FAIR TO GOOD).
PCPN AMOUNT.........0.13-0.39 IN.
SATURDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). RAIN SHOWERS
LIKELY UNTIL 10 AM. CHANCE OF THUNDERSTORMS
UNTIL 11 AM. CHANCE OF RAIN SHOWERS AFTER 10 AM
UNTIL 12 PM.
CHANCE OF PCPN......70 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....60-65.
24 HR TREND......11 DEGREES COOLER.
MIN HUMIDITY........49-54 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 13 TO 18 MPH WITH GUSTS TO AROUND 28
MPH.
MIXING HEIGHT.......1900-2400 FT AGL INCREASING TO 3900-4400 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 25 MPH.
SMOKE DISPERSAL.....560 (GOOD) INCREASING TO 1260 (EXCELLENT) IN
THE AFTERNOON.
PCPN AMOUNT.........0.10-0.24 IN.
SATURDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....AROUND 33.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........73-78 PERCENT.
24 HR TREND......28 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 8 TO 13 MPH. GUSTS UP TO 24 MPH IN
THE EVENING.
MIXING HEIGHT.......4100-4600 FT AGL DECREASING TO 1700-2200 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
SMOKE DISPERSAL.....1330 (EXCELLENT) DECREASING TO 390 (GOOD) AFTER
MIDNIGHT.
PCPN AMOUNT.........NONE.
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 48.
24 HR TREND......17 DEGREES COOLER.
MIN HUMIDITY........34-39 PERCENT.
24 HR TREND......13 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 11 TO 16 MPH. GUSTS UP TO 27 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......8900-9400 FT AGL.
TRANSPORT WINDS.....WEST AROUND 20 MPH INCREASING TO AROUND 30 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....2200 (EXCELLENT) INCREASING TO 2940 (EXCELLENT)
IN THE AFTERNOON.
PCPN AMOUNT.........NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. NORTHWEST WINDS
6 TO 11 MPH.
MONDAY
SUNNY. HIGHS IN THE UPPER 40S. NORTH WINDS 5 TO 6 MPH
SHIFTING TO THE WEST 5 TO 8 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SOUTHWEST WINDS 7 TO 12 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHWEST
WINDS 5 TO 10 MPH SHIFTING TO THE NORTHEAST 5 TO 7 MPH AFTER
MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE MID 60S. EAST WINDS 5 TO 9 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 50S.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER
70S.
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