630
FNUS73 KGRR 051348
FWSGRR
SPOT FORECAST FOR BERM BURN...DMVA
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
948 AM EDT TUE AUG 5 2025
FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON AUGUST 05.
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
LIGHT EASTERLY WINDS TO AROUND 5 TO 10 MPH ARE EXPECTED TODAY WITH
MIXING HEIGHTS AROUND 6000 TO 7000 FEET DURING THE AFTERNOON.
MINIMUM RELATIVE HUMIDITY VALUES WILL LARGELY BE IN THE 40S BUT
COULD DIP INTO THE 30S TOWARD THE LATER PORTION OF THE AFTERNOON
IF MIXING HEIGHTS INCREASE. CUMULUS CLOUDS AROUND 6000 TO 7000
FEET ARE EXPECTED TO CONTINUE THROUGH THE DAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). AREAS OF SMOKE.
TEMPERATURE.........75 AT IGNITION...MAX 83.
RH..................58 PERCENT AT IGNITION...MIN 45 PERCENT.
WIND (20 FT)........WINDS EAST AT 7 MPH AT IGNITION...OTHERWISE
EAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......2600 FT AGL AT IGNITION...OTHERWISE 7000 FT
AGL.
MIXING WINDS........EAST 7 TO 13 MPH.
SMOKE DISPERSAL.....270 /FAIR/ AT IGNITION. MAX...730 /EXCELLENT/.
TIME (EDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........23 28 36 32 22 47
WEATHER COV.....AREAS AREAS AREAS
WEATHER TYPE....SMOKE SMOKE SMOKE NONE NONE NONE
TSTM COV........
TEMP............75 79 81 81 79 74
RH..............58 47 46 49 54 66
20 FT WIND......E 7 E 7 E 6 E 6 E 5 E 2
20 FT WIND GUST.12 15 16 14 12 7
MIX HGT (FT)....2600 5800 6800 7000 3500 400
MIXING WIND.....E 10 E 13 E 10 E 8 E 7 NE 7
SMOKE DISPRSL...270 730 710 560 240 30
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT) THEN BECOMING
MOSTLY CLEAR (15-25 PERCENT).
TEMPERATURE.........MIN 61.
RH..................MAX 97 PERCENT.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........EAST 5 TO 8 MPH.
SMOKE DISPERSAL.....20 (POOR).
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
TEMPERATURE.........MAX 84.
RH..................MIN 56 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH, THEN
BECOMING LIGHT IN THE EVENING.
MIXING HEIGHT.......5600 FT AGL.
MIXING WINDS........SOUTHEAST 5 TO 7 MPH BECOMING 6 TO 7 MPH LATE
IN THE DAY.
SMOKE DISPERSAL.....20 (POOR) EARLY IN THE MORNING INCREASING TO
380 (GOOD) IN THE AFTERNOON.
FORECASTER...HANSEN
REQUESTED BY...MICHELE RICHARDS
TYPE OF REQUEST...PRESCRIBED
.TAG 2519268.0/GRR
.DELDT 08/05/25
.FORMATTERVERSION 2.0.0
.EMAIL RICHARDSM2@MICHIGAN.GOV
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