Suppression Forecast
Issued by NWS Detroit/Pontiac, MI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5
000
FNUS73 KDTX 171153
FWSDTX

SPOT FORECAST FOR BARN COURSE-NORTH...MI DNR
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
753 AM EDT THU APR 17 2014

FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON APRIL 17.

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

.DISCUSSION...

DRY CONDITIONS WILL REMAIN OVER SOUTHEAST MICHIGAN TODAY AS HIGH
PRESSURE PUSHES OFF TO THE EAST. TEMPERATURES WILL RISE INTO THE
50S...WITH RH VALUES ONLY DROPPING INTO THE LOWER 40 PERCENT RANGE.
A COLD FRONT PUSHING THROUGH THE AREA TONIGHT INTO FRIDAY MORNING
WILL PRODUCE A SHOWERS...WITH DRY WEATHER RETURNING FRIDAY NIGHT
THROUGH SUNDAY MORNING.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). A SLIGHT CHANCE
                    OF RAIN SHOWERS LATE.
MAX TEMPERATURE.....52-57.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 7 TO 12 MPH.
WIND (20 FT)........SOUTH WINDS 7 TO 12 MPH.
TRANSPORT WINDS.....SOUTH 13 TO 22 MPH.
MIXING HEIGHT.......1400 FT AGL...INCREASING TO 4400 FT AGL BY
                    EARLY AFTERNOON...THEN...INCREASING TO 5200 FT
                    AGL LATE...DECREASING TO 2800 FT AGL EARLY IN
                    THE EVENING.
HAINES INDEX........3 TO 5 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL
                    FOR LARGE PLUME DOMINATED FIRE GROWTH.
VENTILATION RATE....EXCELLENT (MAX...900).

TIME (EDT)      1PM 2PM 3PM 4PM 5PM 6PM 7PM
SKY (%).........47  48  51  56  62  67  73
WEATHER COV.....                    SCH SCH
WEATHER TYPE....                    RW  RW
TEMP............51  53  54  55  55  55  53
RH..............45  45  44  43  44  47  52
20 FT WIND DIR..S   S   S   S   S   S   S
20 FT WIND SPD..11  11  11  11  10  10  9
20 FT WIND GUST.20  20  20  20  20  15  15
EYE LVL WND DIR.S   S   S   S   S   S   S
EYE LVL WND SPD.11  11  11  11  10  10  9
EYE LVL WND GST.20  20  20  20  20  15  15
MIX HGT (KFT)...0.9 1.4 2.9 4.4 5.2 4.4 2.8
HAINES INDEX....5   5   4   4   3   3   3
VRATE (KT-FT)...100 200 500 800 900 700 300

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
                    SHOWERS IN THE EVENING...THEN RAIN SHOWERS
                    LIKELY AFTER MIDNIGHT.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........88 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 6 TO 11 MPH BECOMING WEST.
WIND (20 FT)........SOUTH WINDS 6 TO 11 MPH BECOMING WEST.
TRANSPORT WINDS.....WEST 5 TO 8 MPH.
MIXING HEIGHT.......300 FT AGL.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
VENTILATION RATE....POOR (MIN...0).

TIME (EDT)      8 PM   10 PM  MIDNGT 2 AM   4 AM   6 AM
SKY (%).........76     82     90     96     96     97
WEATHER COV.....CHANCE CHANCE CHANCE LIKELY LIKELY LIKELY
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............52     48     46     44     43     42
RH..............57     71     81     86     86     88
20 FT WIND DIR..S      S      S      S      SW     W
20 FT WIND SPD..7      9      9      8      7      6
20 FT WIND GUST.10     15     15     10     10     10
EYE LEVEL WIND..S 7    S 9    S 9    S 8    SW 7   W 6
EYE LEVEL WIND..10     15     15     10     10     10
MIX HGT (FT)....1400   500    300    500    600    700
HAINES INDEX....3      3      3      3      3      3
VRATE (KT-FT)...100    0      0      0      0      0

$$

FORECASTER...TILLEY
REQUESTED BY...DAN LAUX
TYPE OF REQUEST...PRESCRIBED
.TAG 20140417.BARNC.01/DTX







USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.