FNUS73 KDTX 031340
FWSDTX

SPOT FORECAST FOR BIG SEVEN FEN...MI DNR
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
940 AM EDT TUE MAY 3 2011

FORECAST IS BASED ON IGNITION TIME OF 1130 EDT ON MAY 03.

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

.DISCUSSION...
STEADY RAIN SPREADING INTO FAR SOUTHEAST MICHIGAN THIS MORNING
SHOULD REMAIN SOUTH AND EAST OF THE RX BURN SITE AS DRY AIR
REMAINS LOCKED INTO PLACE...BUT A FEW SPRINKLES ARE POSSIBLE
BEFORE 11 AM. FOR THE REMAINDER OF THE AFTERNOON...THE ATMOSPHERE
IS EXPECTED TO DESTABILIZE AS COLDER AIR ALOFT MOVES INTO THE
REGION. THIS MAY GENERATE LIGHT RAIN SHOWERS THIS AFTERNOON AND
EARLY EVENING AS FAR WEST AS THE BURN SITE. FAIRLY LIGHT NORTHERLY
WINDS ARE EXPECTED. DRY WEATHER IS EXPECTED TOMORROW AS HIGH
PRESSURE BUILDS INTO THE AREA.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (80-100 PERCENT).
MAX TEMPERATURE.....48-49.
MIN HUMIDITY........50 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 10 MPH.
TRANSPORT WINDS.....NORTH-NORTHEAST 8 TO 14 MPH.
MIXING HEIGHT.......3200 FT AGL...INCREASING TO 4200 FT AGL BY
                    5 PM.
VENTILATION RATE....GOOD (MAX...500).

TIME (EDT)      11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM
SKY (%).........91  91  90  90  88  86  84  82  80
WEATHER COV.....30  30  30  30  30  30  30  30  30
WEATHER TYPE....RA  RA  RA  RA  RA  RA  RA  RA  RA
TEMP............45  47  48  49  49  49  49  49  48
RH..............63  59  59  57  54  52  50  56  58
20 FT WIND DIR..NE  N   N   N   N   N   N   N   N
20 FT WIND SPD..8   8   8   8   7   7   7   7   6
20 FT WIND GUST.15  15  15  15  15  15  15  15  10
MIX HGT (KFT)...1.7 1.8 1.9 2.6 3.5 4.1 4.2 3.5 3.4
VRATE (KT-FT)...200 200 200 300 400 400 500 400 300

$$
FORECASTER...OROW
REQUESTED BY...LEE OSTERLAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20110503.BIGSE.01/DTX