Suppression Forecast
Issued by NWS Detroit/Pontiac, MI

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FNUS73 KDTX 251303
FWSDTX

SPOT FORECAST FOR UNIT 10 11...MI DNR
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
903 AM EDT SAT APR 25 2015

FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON APRIL 25.

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...ASIDE FROM SOME LIGHT SHOWERS OVERNIGHT...LOW PRESSURE
TRACKING THROUGH THE OHIO VALLEY WILL BRING A CHANCE FOR SHOWERS
SOUTH OF ANN ARBOR AND DETROIT TODAY. THIS SYSTEM COMBINED WITH HIGH
PRESSURE TO THE NORTH WILL SHIFT WINDS TO THE EAST-NORTHEAST TODAY.
THESE WINDS WILL SUSTAIN SOME DEGREE OF LOW LEVEL DRY AIR ACROSS THE
REGION...WHICH WILL AT LEAST CAUSE AFTERNOON RH VALUES TO DROP INTO
THE 30S. A SLIGHTLY BETTER INFLUX OF MOISTURE UNDER THE NORTHEAST
WINDS SUGGEST DAYTIME RH VALUES WILL BE A LITTLE HIGHER BOTH SUNDAY
AND MONDAY /IN THE 40S/. A SLOW WARMING TREND AND LITTLE TO NO CHANCE
FOR PRECIPITATION IS THEN EXPECTED TUESDAY INTO AT LEAST WEDNESDAY.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) BECOMING PARTLY
                    SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 51.
MIN HUMIDITY........41 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 9 TO 14 MPH.
WIND (20 FT)........NORTH WINDS 9 TO 14 MPH.
TRANSPORT WINDS.....NORTHEAST 8 TO 15 MPH...INCREASING TO AROUND 21
                    MPH EARLY THIS EVENING.
MIXING HEIGHT.......2400 FT AGL...INCREASING TO 4900 FT AGL BY LATE
                    MORNING...THEN INCREASING TO 5500 FT AGL BY
                    MID AFTERNOON...DECREASING TO 2500 FT AGL EARLY
                    IN THE EVENING.
HAINES INDEX........2 TO 4 OR VERY LOW TO POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
VENTILATION RATE....GOOD (MAX...500).

TIME (EDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
SKY (%).........92  90  87  70  53  37  46  56
WEATHER COV.....
WEATHER TYPE....
TEMP............46  48  49  51  51  50  47  43
RH..............39  38  39  40  41  45  50  55
20 FT WIND DIR..E   NE  NE  NE  NE  NE  N   N
20 FT WIND SPD..9   8   8   9   10  11  11  11
20 FT WIND GUST.15  15  15  15  20  20  20  20
EYE LVL WND DIR.E   NE  NE  NE  NE  NE  N   N
EYE LVL WND SPD.7   6   6   7   8   8   8   8
EYE LVL WND GST.15  15  15  15  20  20  20  20
MIX HGT (KFT)...3.9 4.5 4.9 5.3 5.5 5.1 4.0 2.5
HAINES INDEX....4   4   4   3   3   2   3   3
VRATE (KT-FT)...300 400 400 400 400 400 500 500

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT)BECOMING CLEAR
                    (5-15 PERCENT) OVERNIGHT.
MIN TEMPERATURE.....29-34.
MAX HUMIDITY........88 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 7 TO 12 MPH.
TRANSPORT WINDS.....NORTH 21 TO 26 MPH...DECREASING TO 7 TO 16 MPH
                    AFTER MIDNIGHT.
VENTILATION RATE....POOR (MIN...0).

TIME (EDT)      8 PM   10 PM  MIDNGT 2 AM   4 AM   6 AM
SKY (%).........65     62     47     22     10     9
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............40     37     35     34     32     33
RH..............62     74     82     85     90     90
EYE LEVEL WIND..N 8    N 8    N 7    N 5    N 5    N 6
EYE LEVEL WIND..20     15     15     10     10     10
VRATE (KT-FT)...300    100    100    0      0      0

$$
FORECASTER...GURNEY
REQUESTED BY...LEE OSTERLAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20150425.UNIT1.01/DTX



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