Spot Forecast Issued by NWS Grand Rapids, MI
000
FNUS73 KGRR 160745
FWSGRR
Spot Forecast for SE Peacock Unit 3...USFS
National Weather Service Grand Rapids MI
345 AM EDT Tue Apr 16 2024
Forecast is based on ignition time of 0900 EDT on April 16.
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...We`ll see sunshine this morning and increasing clouds
this afternoon. Strengthening low pressure over the Plains will move
toward the Great Lakes and we`ll see winds increase from the east today
and become gusty.
.TODAY...
Sky/weather.........Mostly sunny (35-45 percent).
Temperature.........44 at ignition...Max 66.
RH..................57 percent at ignition...Min 23 percent.
Wind (20 ft)........Winds east at 10 mph at ignition...otherwise
East winds 9 to 18 mph.
Mixing height.......1200 ft AGL at ignition...otherwise 3300 ft
AGL.
Mixing winds........East 12 to 20 mph increasing to southeast 22 to
30 mph late in the day.
Smoke dispersal.....190 /fair/ at ignition. Max...830 /excellent/.
Haines Index........4 or low potential for large plume dominated
fire growth at ignition...max 4.
TIME (EDT) 9 AM 11 AM 1 PM 3 PM 5 PM 7 PM
Sky (%).........23 25 22 25 29 61
Weather cov.....
Weather type....NONE NONE NONE NONE NONE NONE
Tstm cov........
Temp............44 55 62 65 66 62
RH..............57 38 28 25 23 28
20 ft wind......E 10 E 12 E 13 E 14 E 15 E 18
20 ft wind gust.16 17 18 20 23 26
Mix hgt (ft)....1200 2200 2900 3200 3300 2700
Mixing wind.....E 16 E 17 E 18 E 20 SE 25 E 30
Haines index....4 4 4 4 4 4
Smoke disprsl...190 370 530 630 830 800
.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Rain showers
likely in the evening. Slight chance of
thunderstorms through the night. Rain showers
overnight.
Temperature.........Min 44.
RH..................Max 86 percent.
Wind (20 ft)........Breezy. Southeast winds 21 to 28 mph. Gusts up
to 37 mph increasing to 43 mph. Gusty and
erratic winds expected near thunderstorms after
midnight.
Mixing height.......800 ft AGL.
Mixing winds........Southeast 25 to 30 mph.
Smoke dispersal.....360 (good) early in the evening decreasing to
230 (fair) late in the night.
Haines Index........2 to 3 or very low potential for large plume
dominated fire growth.
.WEDNESDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
thunderstorms early in the morning. Rain
showers through the day. Chance of
thunderstorms.
Temperature.........Max 64.
RH..................Min 72 percent.
Wind (20 ft)........Southeast winds 13 to 22 mph shifting to the
south 12 to 13 mph late in the day. Gusty and
erratic winds expected near thunderstorms early
in the morning. Gusty and erratic winds
expected near thunderstorms.
Mixing height.......2300 ft AGL.
Mixing winds........Southeast 20 to 28 mph shifting to the
southwest 17 to 20 mph late in the day.
Smoke dispersal.....260 (fair) early in the morning increasing to
440 (good) in the afternoon.
Haines Index........2 to 3 or very low potential for large plume
dominated fire growth.
$$
Forecaster...Felver
Requested by...Jeff Nieland
Type of request...PRESCRIBED
.TAG 2410996.0/GRR
.DELDT 04/16/24
.FormatterVersion 2.0.0
.EMAIL Jeff.NIeland@usda.gov