Suppression Forecast
Issued by NWS Grand Rapids, MI

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000
FNUS73 KGRR 171349
FWSGRR

Spot Forecast for Brohman Rx...USFS HMF
National Weather Service Grand Rapids MI
949 AM EDT Thu May 17 2018

Forecast is based on ignition time of 1000 EDT on May 17.
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 weather for today is looking dry for the burn area.  Humidity
levels will drop off sharply once again this afternoon as a
dry airmass continues to flow in from the east.  Easterly winds
will prevail through the day.


.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
Temperature.........66 at ignition...Max 78.
RH..................54 percent at ignition...Min 29 percent.
Wind (20 ft)........Winds east at 11 mph at ignition...otherwise
                    East winds 7 to 12 mph.
Mixing height.......1600 ft AGL at ignition...otherwise 3100-3600
                    ft AGL.
Mixing winds........East 9 to 14 mph.
Smoke dispersal.....100 /poor/ at ignition. Max...400 /good/.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 3.

TIME (EDT)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
Sky (%).........4      3      9      12     18     18
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............66     72     76     78     76     69
RH..............54     41     36     30     31     36
20 ft wind......E 11   E 12   E 12   E 12   E 12   E 12
20 ft wind gust.12     16     16     17     16     14
Mix hgt (ft)....1600   2800   3500   3500   2700   1500
Haines index....3      3      3      3      3      3
Smoke Dispersal 100    400    400    400    300    200

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
Temperature.........Min 47.
RH..................Max 54 percent.
Wind (20 ft)........East winds 8 to 13 mph.
Mixing height.......1000-1500 ft AGL.
Mixing winds........East 15 to 18 mph.
Smoke dispersal.....100-200 (poor to fair).
Haines Index........3 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

.FRIDAY...

Sky/weather.........Sunny (20-30 percent).
Temperature.........Max 73.
RH..................Min 33 percent.
Wind (20 ft)........East winds 7 to 12 mph.
Mixing height.......2300-2800 ft AGL.
Mixing winds........East 14 to 20 mph.
Smoke dispersal.....100-500 (poor to good).
Haines Index........3 to 4 OR or very low potential for large plume
                    dominated fire growth to or low potential for
                    large plume dominated fire growth.

$$
Forecaster...Sekelsky
Requested by...Kevin Reese
Type of request...PRESCRIBED
.TAG 1810216.0/GRR
.EMAIL Kevinreese@fs.fs.us


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