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Suppression Forecast
Issued by NWS Grand Rapids, MI

000
FNUS73 KGRR 251300
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR IDLEWILD UNIT  9...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
900 AM EDT SAT MAY 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON MAY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...DRY WEATHER IS EXPECTED THROUGH SUNDAY WITH SURFACE
HIGH PRESSURE CENTERED RIGHT OVER THE GREAT LAKES REGION. THERE
WILL BE SOME CLOUDINESS TODAY BOTH IN THE VARIETY OF HIGH CLOUDS
STREAMING IN FROM THE WEST AND A BIT OF CUMULUS CLOUD DEVELOPMENT.
OVERALL THOUGH A GOOD DEAL OF SUNSHINE IS EXPECTED. HIGHS WILL TOP
OUT IN THE MIDDLE 60S. RH VALUES WILL DIP TO AROUND 30 PERCENT
BOTH THIS AFTERNOON AND SUNDAY AFTERNOON WITH THE POTENTIAL TO GO
EVEN A BIT LOWER. VERY LITTLE IN THE WAY OF WIND IS EXPECTED
TODAY GIVEN HIGH PRESSURE OVERHEAD...WITH LIGHT AND VARIABLE WINDS
GIVING WAY TO A WEAK LAKE BREEZE TRYING TO PUSH IN FROM THE
NORTHWEST. QUIET WEATHER CONDITIONS WILL CONTINUE TONIGHT AND
SUNDAY AS WELL WITH CONTINUED LIGHT AND VARIABLE WINDS.

.TODAY...

SKY/WEATHER.........SUNNY (20-30 PERCENT).
TEMPERATURE.........61 AT IGNITION...MAX 66.
RH..................39 PERCENT AT IGNITION...MIN 28 PERCENT.
WIND (20 FT)........WINDS NORTHEAST AT 5 MPH AT
                    IGNITION...OTHERWISE LIGHT WINDS BECOMING
                    NORTHWEST 5 TO 8 MPH.
MIXING WINDS........NORTH 4 TO 6 MPH.
MIXING HEIGHT.......1600-2100 FT AGL INCREASING TO 6600 FT AGL AT
                    IGNITION...OTHERWISE 6700-7200 FT AGL.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 5.
SMOKE DISPERSAL.....0-300 (POOR TO GOOD).

TIME (EDT)      1 PM   3 PM   5 PM   7 PM
SKY (%).........28     29     25     22
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............60     63     66     63
RH..............39     34     30     35
20 FT WIND......NE 5   N 5    N 5    N 6
20 FT GUST......
HAINES INDEX....4      4      4      4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). AREAS OF FROST
                    OVERNIGHT.
TEMPERATURE.........MIN 37.
RH..................MAX 89 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 6 MPH.
MIXING WINDS........SOUTHEAST 3 TO 8 MPH.
MIXING HEIGHT.......5900-6400 FT AGL DECREASING TO 0-400 FT AGL.
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.
SMOKE DISPERSAL.....0-200 (POOR TO FAIR).

.SUNDAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
TEMPERATURE.........MAX 69.
RH..................MIN 29 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 8 MPH UNTIL MIDDAY
                    BECOMING LIGHT.
MIXING WINDS........SOUTHEAST 2 TO 8 MPH.
MIXING HEIGHT.......2100-2600 FT AGL INCREASING TO 6800-7300 FT
                    AGL.
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.
SMOKE DISPERSAL.....100-300 (POOR TO GOOD).

$$
FORECASTER...DUKE
REQUESTED BY...BOB LITTLE
TYPE OF REQUEST...PRESCRIBED
.TAG 20130525.IDLEW.01/GRR