476
FNUS73 KGRR 111003
FWSGRR
SPOT FORECAST FOR RICK DAVIS...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
603 AM EDT MON MAY 11 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MAY 11.
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
DRY AND SUNNY CONDITIONS TODAY WITH RELATIVE HUMIDITY DROPPING
TO 30 TO 35 PERCENT IN THE AFTERNOON. NORTH TO NORTHWEST WINDS
GENERALLY BELOW 10 MPH.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
TEMPERATURE.........46 AT IGNITION...MAX 54.
RH..................45 PERCENT AT IGNITION...MIN 34 PERCENT.
WIND (20 FT)........WINDS NORTH AT 5 MPH AT IGNITION...OTHERWISE
NORTH WINDS 5 TO 8 MPH.
MIXING HEIGHT.......3600 FT AGL AT IGNITION...OTHERWISE 5100 FT
AGL.
MIXING WINDS........NORTH 12 TO 13 MPH.
SMOKE DISPERSAL.....420 /GOOD/ AT IGNITION. MAX...660 /EXCELLENT/.
TIME (EDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........1 2 3 4 4 7
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............46 50 52 52 52 49
RH..............45 39 38 36 35 39
20 FT WIND......N 5 N 6 NW 7 NW 8 N 7 N 3
20 FT WIND GUST.10 14 15 16 14 9
MIX HGT (FT)....3600 5100 5000 4000 2700 1100
MIXING WIND.....N 12 N 13 N 12 N 12 N 12 N 7
SMOKE DISPRSL...420 650 580 470 320 70
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (55-65 PERCENT).
TEMPERATURE.........MIN 33.
RH..................MAX 72 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHEAST AROUND
5 MPH AFTER 3 AM.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........NORTH 6 TO 12 MPH SHIFTING TO THE EAST 6 TO 8
MPH LATE IN THE EVENING, THEN SHIFTING TO THE
SOUTHEAST 9 TO 12 MPH OVERNIGHT.
SMOKE DISPERSAL.....320 (GOOD) EARLY IN THE EVENING DECREASING TO
20 (POOR) LATE IN THE NIGHT.
TUESDAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). RAIN SHOWERS IN
THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
TEMPERATURE.........MAX 63.
RH..................MIN 58 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 14 MPH. GUSTS UP TO 30 MPH IN
THE LATE MORNING AND AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS LATE
IN THE AFTERNOON.
MIXING HEIGHT.......1500 FT AGL.
MIXING WINDS........SOUTH 13 TO 22 MPH INCREASING TO 23 TO 26 MPH
IN THE AFTERNOON.
SMOKE DISPERSAL.....40 (POOR) EARLY IN THE MORNING INCREASING TO
410 (GOOD) IN THE AFTERNOON.
FORECASTER...OSTUNO
REQUESTED BY...JOE RASPOTNIK
TYPE OF REQUEST...PRESCRIBED
.TAG 2613253.0/GRR
.DELDT 05/11/26
.FORMATTERVERSION 2.0.0
.EMAIL RICK.W.DAVIS@USDA.GOV,BRIAN.STEARNS@USDA.GOV,BRANDON.KELLEY@USDA.GOV
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