Text Products for FWS Issued by GRR

Spot Forecast
Issued by NWS Grand Rapids, MI
Versions: 1 2 3 4 5 6 7 8 9 10 11
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FNUS73 KGRR 141441
FWSGRR

Spot Forecast for Aster A-21...MI DNR
National Weather Service Grand Rapids MI
1041 AM EDT Sun Apr 14 2024

Forecast is based on ignition time of 1200 EDT on April 14.
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...
High pressure will dominate the weather over the area into Tuesday.
A weak front will move through today, shifting winds from the west
to the northwest. Temperatures will cool off a little bit for
Monday, and dew points will drop into the 30s.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........66 at ignition...Max 73.
RH..................48 percent at ignition...Min 32 percent.
Wind (20 ft)........Winds west at 12 mph at ignition...otherwise
                    northwest winds 8 to 12 mph.
Mixing height.......1600 ft AGL at ignition...otherwise 2100 ft
                    AGL.
Mixing winds........Northwest 10 to 16 mph.
Smoke dispersal.....300 /fair/ at ignition. Max...600 /excellent/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 5.

TIME (EDT)      NOON   2 PM   4 PM   6 PM   8 PM   10 PM
Sky (%).........9      8      3      5      7      17
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............66     70     73     73     63     56
RH..............48     40     32     32     45     62
20 ft wind......W 12   W 10   NW 12  NW 10  NW 6   NW 3
20 ft wind gust.18     18     18     18     8      6
Mix hgt (ft)....1500   2500   3000   3000   500    400
Mixing wind.....W 20   NW 20  NW 20  NW 20  NW 8   NW 6
Haines index....4      5      5      5      4      4
Smoke disprsl...300    500    600    600    50     20

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent).
Temperature.........Min 46.
RH..................Max 85 percent.
Wind (20 ft)........Northwest winds 3 to 6 mph.
Mixing height.......300 ft AGL.
Mixing winds........Northwest 5 to 10 mph.
Smoke dispersal.....30 (poor).
Haines Index........4 or low potential for large plume dominated
                    fire growth.

.MONDAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........Max 68.
RH..................Min 28 percent.
Wind (20 ft)........Light winds becoming west 7 to 11 mph.
Mixing height.......4500 ft AGL.
Mixing winds........Becoming west 10 to 15 mph.
Smoke dispersal.....Increasing to 650(excellent) in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.

$$
Forecaster...Jeruzal
Requested by...Jeff Vasher
Type of request...PRESCRIBED
.TAG 2410717.0/GRR
.DELDT 04/14/24
.FormatterVersion 2.0.0
.EMAIL vasherj@michigan.gov
National Weather Service Weather Forecast Office
