Suppression Forecast
Issued by NWS Grand Rapids, MI

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000
FNUS73 KGRR 211405
FWSGRR

Spot Forecast for Old Allegan Rd...MDNR
National Weather Service Grand Rapids MI
1005 AM EDT Sat Apr 21 2018

Forecast is based on ignition time of 1800 EDT on April 21.
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...
The winds will be weaking around the time of this burn.  As
temperatures slowly cool during the evening over the land...an
easterly component of the wind will develop as this cooler air drains
towards Lake Michigan. Overall there is forecasted to be a decrease
in the cloud cover this evening.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (80-90 percent).
Temperature.........52 at ignition.
RH..................35 percent at ignition.
Wind (20 ft)........Winds west at 6 mph at ignition...otherwise
                    Northwest winds 5 to 10 mph.
Mixing height.......2900 ft AGL at ignition...otherwise 2400-2900
                    ft AGL.
Mixing winds........Northwest 5 to 6 mph.
Smoke dispersal.....100 /poor/ at ignition. Max...100 /poor/.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth at ignition...max 5.

TIME (EDT)      5 PM   7 PM   9 PM   11 PM  1 AM   3 AM
Sky (%).........83     82     68     51     34     23
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............55     51     47     44     42     40
RH..............31     37     45     51     55     59
20 ft wind......W 6    NW 5   NW 4   NE 5   E 5    E 5
20 ft wind gust.
Mix hgt (ft)....2900   1200   200    200    100    100
Haines index....5      5      5      5      5      5
Smoke Dispersal 100    100    0      0      0      0

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent) then becoming
                    partly cloudy (35-45 percent).
Temperature.........Min 37.
RH..................Max 70 percent.
Wind (20 ft)........East winds 5 to 10 mph.

$$
Forecaster...Sekelsky
Requested by...klingler
Type of request...PRESCRIBED
.TAG 1807258.0/GRR
.EMAIL klinglerd@michigan.gov


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