556
FNUS73 KGRR 051157
FWSGRR
SPOT FORECAST FOR LOONEY 105...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
757 AM EDT TUE MAY 5 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MAY 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
NORTHWEST WINDS PICK UP THIS MORNING INTO THE AFTERNOON WITH GUSTS
20 TO 30 MPH. RELATIVE HUMIDITY VALUES WILL DROP INTO THE LOW
30S. THERE IS A 20 PERCENT CHANCE THAT RELATIVE HUMIDITY VALUES
COULD DROP INTO THE UPPER 20S LATE THIS AFTERNOON. SIMILAR
CONDITIONS ARE EXPECTED WEDNESDAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).
TEMPERATURE.........47 AT IGNITION...MAX 55.
RH..................51 PERCENT AT IGNITION...MIN 32 PERCENT.
WIND (20 FT)........WINDS WEST AT 7 MPH AT IGNITION...OTHERWISE
WEST WINDS 7 TO 8 MPH.
MIXING HEIGHT.......4200 FT AGL AT IGNITION...OTHERWISE 6300 FT
AGL.
MIXING WINDS........WEST 20 TO 23 MPH.
SMOKE DISPERSAL.....820 /EXCELLENT/ AT IGNITION. MAX...1380
/EXCELLENT/.
TIME (EDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........16 18 21 30 47 54
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............47 51 53 55 54 50
RH..............51 41 36 32 34 42
20 FT WIND......W 7 W 7 W 8 W 7 W 6 W 3
20 FT WIND GUST.15 16 17 16 14 10
MIX HGT (FT)....4200 5000 5800 6300 6100 1900
MIXING WIND.....W 20 W 22 W 23 W 22 W 21 W 9
SMOKE DISPRSL...820 1090 1340 1380 1270 180
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
PARTLY CLOUDY (30-40 PERCENT). AREAS OF FROST
AFTER 3 AM.
TEMPERATURE.........MIN 34.
RH..................MAX 79 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
MIXING WINDS........WEST 16 TO 21 MPH DECREASING TO 8 TO 9 MPH
EARLY IN THE EVENING, THEN SHIFTING TO THE
NORTH 7 TO 8 MPH OVERNIGHT SHIFTING TO THE
NORTHEAST AROUND 7 MPH AFTER 3 AM.
SMOKE DISPERSAL.....1270 (EXCELLENT) EARLY IN THE EVENING
DECREASING TO 180 (FAIR) LATE IN THE NIGHT
DECREASING TO 30 (POOR) IN THE LATE EVENING AND
OVERNIGHT.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). AREAS OF FROST
EARLY IN THE MORNING.
TEMPERATURE.........MAX 52.
RH..................MIN 37 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 7 MPH LATE
IN THE MORNING.
MIXING HEIGHT.......5700 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 6 MPH SHIFTING TO THE NORTHWEST
7 TO 10 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....20 (POOR) EARLY IN THE MORNING INCREASING TO
620 (EXCELLENT) IN THE AFTERNOON.
FORECASTER...CERU
REQUESTED BY...DEAN CHAMBERS
TYPE OF REQUEST...PRESCRIBED
.TAG 2612692.0/GRR
.DELDT 05/05/26
.FORMATTERVERSION 2.0.0
.EMAIL DEAN.CHAMBERS@USDA.GOV
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