FNUS73 KGRR 061415
FWSGRR
Spot Forecast for Little Bluestem...MIDNR
National Weather Service Grand Rapids MI
1015 AM EDT Mon May 6 2024
Forecast is based on ignition time of 1300 EDT on May 06.
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...Above normal temperatures are expected this afternoon
with highs around 70. Min RH values will fall to around 30 percent.
Winds aloft won't begin to increase until tonight once the ridge moves
east.
.REST OF TODAY...
Sky/weather.........Partly sunny (50-60 percent).
Temperature.........64 at ignition...Max 70.
RH..................44 percent at ignition...Min 31 percent.
Wind (20 ft)........Winds east at 12 mph at ignition...otherwise
East winds 9 to 12 mph.
Mixing height.......4200 ft AGL at ignition...otherwise 5200 ft
AGL.
Mixing winds........East 12 to 13 mph.
Smoke dispersal.....530 /good/ at ignition. Max...640 /excellent/.
Haines Index........4 or low potential for large plume dominated
fire growth at ignition...max 5.
TIME (EDT) 1 PM 3 PM 5 PM 7 PM 9 PM 11 PM
Sky (%).........64 58 50 42 33 21
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............64 69 69 68 60 54
RH..............44 32 32 33 47 54
20 ft wind......E 12 E 12 E 12 E 9 E 7 E 7
20 ft wind gust.15 14 14 13 10 10
Mix hgt (ft)....4200 5000 5100 4100 500 400
Mixing wind.....E 13 E 12 E 13 E 13 E 13 E 13
Haines index....4 5 5 5 5 5
Smoke disprsl...530 580 640 520 60 50
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Temperature.........Min 44.
RH..................Max 71 percent.
Wind (20 ft)........East winds 7 to 8 mph.
Mixing height.......400 ft AGL.
Mixing winds........East 12 to 13 mph.
Smoke dispersal.....40 (poor).
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
.TUESDAY...
Sky/weather.........Mostly sunny (45-55 percent) then becoming
mostly cloudy (75-85 percent). Slight chance of
thunderstorms through mid afternoon. Rain
showers likely in the afternoon. Chance of
thunderstorms late in the day.
Temperature.........Max 71.
RH..................Min 47 percent.
Wind (20 ft)........Southeast winds 9 to 15 mph shifting to the
south 12 to 15 mph in the afternoon. Gusty and
erratic winds expected near thunderstorms
through mid afternoon. Gusty and erratic winds
expected near thunderstorms late in the day.
Mixing height.......3000 ft AGL.
Mixing winds........Southeast 13 to 22 mph increasing to 16 to 23
mph in the afternoon.
Smoke dispersal.....70 (poor) early in the morning increasing to
700 (excellent) in the afternoon.
Haines Index........3 or very low potential for large plume
dominated fire growth.
$$
Forecaster...Felver
Requested by...Nate Stearns
Type of request...PRESCRIBED
.TAG 2413257.0/GRR
.DELDT 05/06/24
.FormatterVersion 2.0.0
.EMAIL stearnsn@michigan.gov
