544
FNUS73 KGRR 120941
FWSGRR
SPOT FORECAST FOR POPLAR RX...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
541 AM EDT TUE MAY 12 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MAY 12.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE AT (616) 949-5150, IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
RADAR SHOWS LIGHT RAIN MOVING TOWARD THE WISCONSIN BORDER
WITH LAKE MICHIGAN THIS PRECIPITATION WILL MOVE ONSHORE WEST CENTRAL
LOWER MI WITHIN THE NEXT COUPLE OF HOURS AND THEN MOVE ACROSS THE LOWER
PENINSULA. THERE ARE MORE SHOWERS BEHIND THAT AS WELL. MOST LIKELY,
THUNDERSTORMS WILL HOLD OFF UNTIL THIS AFTERNOON WHEN INSTABILITY IS HIGHER.
REST OF TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN SHOWERS
LIKELY THROUGH THE DAY. CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
TEMPERATURE.........47 AT IGNITION...MAX 64.
RH..................63 PERCENT AT IGNITION...MIN 55 PERCENT.
WIND (20 FT)........WINDS SOUTH AT 9 MPH AT IGNITION...OTHERWISE
SOUTH WINDS 9 TO 15 MPH. GUSTS UP TO 31 MPH
INCREASING TO 35 MPH LATE IN THE AFTERNOON.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS LATE IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
MIXING HEIGHT.......1200 FT AGL AT IGNITION...OTHERWISE 2400 FT
AGL.
MIXING WINDS........SOUTH 14 TO 23 MPH INCREASING TO AROUND 24 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....160 /FAIR/ AT IGNITION. MAX...560 /GOOD/.
TIME (EDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........83 87 85 79 81 93
WEATHER COV.....LIKELY CHANCE CHANCE LIKELY CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ S CHC S CHC CHANCE CHANCE
TEMP............47 51 55 60 63 62
RH..............63 59 57 55 56 60
20 FT WIND......S 9 S 12 S 15 S 14 S 15 SW 14
20 FT WIND GUST.22 26 31 33 35 31
MIX HGT (FT)....1200 1700 2400 2000 1600 1100
MIXING WIND.....S 14 S 20 S 23 S 24 SW 21 SW 17
SMOKE DISPRSL...160 320 550 490 330 190
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) THEN BECOMING
PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT). RAIN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE
EVENING.
TEMPERATURE.........MIN 43.
RH..................MAX 89 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 9 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH SHIFTING TO THE NORTHWEST 10 TO
12 MPH WITH GUSTS TO AROUND 26 MPH AFTER 3 AM.
GUSTY AND ERRATIC WINDS EXPECTED NEAR
THUNDERSTORMS IN THE EVENING.
MIXING HEIGHT.......600 FT AGL.
MIXING WINDS........SOUTHWEST 14 TO 21 MPH SHIFTING TO THE
NORTHWEST 14 TO 20 MPH OVERNIGHT.
SMOKE DISPERSAL.....330 (GOOD) EARLY IN THE EVENING DECREASING TO
80 (POOR) LATE IN THE NIGHT.
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT).
TEMPERATURE.........MAX 51.
RH..................MIN 54 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 13 TO 17 MPH WITH GUSTS TO
AROUND 36 MPH.
MIXING HEIGHT.......3400 FT AGL.
MIXING WINDS........NORTHWEST 18 TO 26 MPH INCREASING TO AROUND 28
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....320 (GOOD) EARLY IN THE MORNING INCREASING TO
940 (EXCELLENT) IN THE AFTERNOON.
FORECASTER...FELVER
REQUESTED BY...JOSHUA NICHOLS
TYPE OF REQUEST...PRESCRIBED
.TAG 2613426.0/GRR
.DELDT 05/12/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSHUA.NICHOLS@USDA.GOV
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