Text Products for FWS Issued by GRR

Spot Forecast
Issued by NWS Grand Rapids, MI
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FNUS73 KGRR 201148
FWSGRR

Spot Forecast for Hogue Rx...USFS
National Weather Service Grand Rapids MI
748 AM EDT Sat Apr 20 2024

Forecast is based on ignition time of 0900 EDT on April 20.
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...
Skies will be partly sunny today. Winds are expected to be
northwest at 10 to 20 mph at ignition with gusts to around 25 mph
at times. Winds by midday will subside just a bit into the 10 to
18 mph range. This afternoon winds will become a bit more westerly
at 10 to 15 mph. It will be cool today with highs in the 40s.

.REST OF TODAY...

Sky/weather.........Partly sunny (50-60 percent).
Temperature.........36 at ignition...Max 44.
RH..................61 percent at ignition...Min 39 percent.
Wind (20 ft)........Winds west at 12 mph at ignition...otherwise
                    West winds 9 to 14 mph.
Mixing height.......4400 ft AGL at ignition...otherwise 6000 ft
                    AGL.
Mixing winds........West 16 to 21 mph.
Smoke dispersal.....920 /excellent/ at ignition. Max...1170
                    /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 (%).........48     64     61     61     58     53
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............36     39     41     42     43     42
RH..............61     52     46     43     39     43
20 ft wind......W 12   W 14   W 13   W 13   W 12   W 9
20 ft wind gust.21     20     18     18     16     15
Mix hgt (ft)....4400   5300   5700   5800   5900   4800
Mixing wind.....W 21   W 20   W 20   W 20   W 20   W 16
Haines index....4      4      4      4      4      4
Smoke disprsl...920    1030   1120   1130   1160   770

.TONIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    mostly clear (15-25 percent). Widespread frost
                    after midnight.
Temperature.........Min 30.
RH..................Max 85 percent.
Wind (20 ft)........West winds 6 to 7 mph.
Mixing height.......400 ft AGL.
Mixing winds........West 8 to 13 mph.
Smoke dispersal.....420 (good) early in the evening decreasing to
                    30 (poor) late in the night.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

$$
Forecaster...Duke
Requested by...Brian Stearns
Type of request...PRESCRIBED
.TAG 2411480.0/GRR
.DELDT 04/20/24
.FormatterVersion 2.0.0
.EMAIL Jeff.Nieland@usda.gov
National Weather Service National Headquarters
