Suppression Forecast
Issued by NWS Grand Rapids, MI

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FNUS73 KGRR 311348
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR MAST LAKE UNIT 1...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
948 AM EDT TUE MAY 31 2016

FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MAY 31.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A BATCH OF CLOUDS WILL MOVE THROUGH THE AREA FROM LATE MORNING INTO
THE EARLY AFTERNOON. OTHERWISE CONDITIONS SHOULD REMAIN DRY. WINDS SHOULD
REMAIN FROM THE EAST/SOUTHEAST THROUGH THE DAY WITH GUSTS UP TO 10 MPH.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (40-50 PERCENT).
TEMPERATURE.........76 AT IGNITION...MAX 83.
RH..................42 PERCENT AT IGNITION...MIN 29 PERCENT.
WIND (20 FT)........WINDS EAST AT 3 TO 6 MPH AT IGNITION...OTHERWISE
                    SOUTHEAST WINDS 4 TO 7 MPH.
MIXING WINDS........SOUTHEAST 10 MPH.
MIXING HEIGHT.......2500 FT AGL AT IGNITION...OTHERWISE 6000-6500
                    FT AGL.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 4.
SMOKE DISPERSAL.....250 (FAIR) AT IGNITION...OTHERWISE 650 (EXCELLENT).

TIME (EDT)      11 AM  1 PM   3 PM   5 PM   7 PM
SKY (%).........30     50     50     30     30
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............76     79     81     83     81
RH..............42     37     32     29     35
20 FT WIND......E 5    SE 6   SE 6   SE 7   SE 6
20 FT GUST......10     10     10     10     10
HAINES INDEX....4      3      3      3      4

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (55-65 PERCENT).
TEMPERATURE.........MIN 55.
RH..................MAX 77 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT) THEN BECOMING
                    CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY AND
                    A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
TEMPERATURE.........MAX 79.
RH..................MIN 45 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 11 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING WINDS........SOUTH 16 TO 18 MPH.
SMOKE DISPERSAL.....INCREASING TO 600 (EXCELLENT).

$$
FORECASTER...JERUZAL
REQUESTED BY...STEVE HATTING
TYPE OF REQUEST...PRESCRIBED
.TAG 20160531.MASTL.01/GRR



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