657
FNUS73 KGRR 021310
FWSGRR
SPOT FORECAST FOR CHASE 6...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
910 AM EDT SAT MAY 2 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON MAY 02.
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
SUNNY TODAY WITH RELATIVE HUMIDITY QUICKLY DROPPING TO AROUND 30
PERCENT DURING THE AFTERNOON. LIGHT NORTHWEST WINDS THIS MORNING
INCREASING TO 5 TO 10 MPH IN THE AFTERNOON.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
TEMPERATURE.........36 AT IGNITION...MAX 51.
RH..................61 PERCENT AT IGNITION...MIN 30 PERCENT.
WIND (20 FT)........WINDS NORTHWEST AT 3 MPH AT
IGNITION...OTHERWISE LIGHT WINDS BECOMING
NORTHWEST 5 TO 8 MPH IN THE LATE MORNING AND
AFTERNOON.
MIXING HEIGHT.......2500 FT AGL AT IGNITION...OTHERWISE 7100 FT
AGL.
MIXING WINDS........NORTHWEST 12 TO 18 MPH.
SMOKE DISPERSAL.....290 /FAIR/ AT IGNITION. MAX...1210 /EXCELLENT/.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
SKY (%).........17 12 6 13 21 16 12 8 7 3 15 26
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............36 39 43 46 47 49 50 50 50 51 49 47
RH..............61 50 41 37 34 30 29 28 29 28 31 35
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW W
20 FT WIND SPD..3 5 6 6 7 8 8 8 8 7 6 5
20 FT WIND GUST.9 12 14 16 17 17 17 18 18 16 13 10
MIX HGT (KFT)...2.5 4.1 5.1 5.8 6.5 7.0 7.1 7.0 6.6 5.8 4.7 1.4
MIXING WIND DIR.NW NW NW NW NW NW NW NW NW NW NW W
MIXING WIND SPD.12 14 13 13 13 13 14 16 18 16 14 7
SMOKE DISPRSL...290 560 640 740 820 880 980 11301210940 650 90
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE MORNING.
TEMPERATURE.........MIN 35.
RH..................MAX 76 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTHWEST 5 TO 6
MPH LATE IN THE EVENING.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........NORTHWEST 7 TO 16 MPH SHIFTING TO THE SOUTHWEST
8 TO 15 MPH IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSAL.....940 (EXCELLENT) EARLY IN THE EVENING DECREASING
TO 40 (POOR) LATE IN THE NIGHT.
SUNDAY
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS EARLY IN THE MORNING, THEN CHANCE
OF RAIN SHOWERS EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS LATE IN THE AFTERNOON.
TEMPERATURE.........MAX 58.
RH..................MIN 53 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 14 MPH. GUSTS UP TO 28 MPH
EARLY IN THE MORNING.
MIXING HEIGHT.......4000 FT AGL.
MIXING WINDS........SOUTHWEST 16 TO 23 MPH INCREASING TO 26 TO 30
MPH LATE IN THE MORNING.
SMOKE DISPERSAL.....100 (POOR) EARLY IN THE MORNING INCREASING TO
1200 (EXCELLENT) IN THE AFTERNOON.
FORECASTER...OSTUNO
REQUESTED BY...JOE RASPOTNIK
TYPE OF REQUEST...PRESCRIBED
.TAG 2612497.0/GRR
.DELDT 05/02/26
.FORMATTERVERSION 2.0.0
.EMAIL DEAN.CHAMBERS@USDA.GOV,JOSEPH.RASPOTNIK@USDA.GOV
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