Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 301300
FWSDMX

SPOT FORECAST FOR BRIGHTS LAKE...IA DNR
NATIONAL WEATHER SERVICE DES MOINES IA
800 AM CDT THU APR 30 2015

FORECAST IS BASED ON IGNITION TIME OF 1030 CDT ON APRIL 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

AN INITIAL OBSERVATION AT IGNITION AND A MID BURN OBSERVATION ARE REQUIRED...
PLEASE RELAY THEM TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN.

.DISCUSSION...

WINDS WILL BE PRIMARILY LIGHT TODAY WITH HIGH PRESSURE...GENERALLY
FROM THE NORTH TO EAST THOUGH WILL SHIFT TO THE SOUTH TONIGHT. SOME
DRIER DEWPOINTS MAY MIX DOWN THIS AFTERNOON...WITH RELATIVE HUMIDITIES
DROPPING INTO THE 20 TO 30 PERCENT RANGE. BOUNDARY WILL BRING
CHANCES FOR BY RAIN FRIDAY MORNING.

.TODAY...

SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........28 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST 6 TO 8 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......2100 FT AGL INCREASING TO 7800 FT AGL.
MIXING WINDS........NORTHEAST 6 TO 12 MPH.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1100-67700 KNOT-FT)
                    INCREASING TO EXCELLENT TO EXCELLENT
                    (64100-78400 KNOT-FT) LATE IN THE AFTERNOON.
WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 6 TO 8 MPH.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16  17  18  19  20  21  18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............57  60  62  64  66  67  66
RH..............38  36  35  31  29  28  29
20 FT WIND DIR..E   E   E   E   NE  NE  NE
20 FT WIND SPD..7   7   6   6   6   6   6
20 FT WIND GUST.
EYE LVL WND DIR.E   E   E   E   NE  NE  NE
EYE LVL WND SPD.5   5   4   4   4   4   4
EYE LVL WND GST.
MIX HGT (KFT)...3.3 4.6 5.8 6.5 7.2 7.8 7.3
MIXNG WIND DIR..E   NE  N   N   NE  NE  NE
MIXNG WIND SPD..9   10  12  12  12  12  10
HAINES INDEX....4   4   4   4   5   5   5

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....AROUND 43.
MAX HUMIDITY........76 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 6 TO 8 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6700 FT AGL DECREASING TO 2200 FT AGL.
MIXING WINDS........SOUTH 6 TO 8 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1300-48900 KNOT-FT).
WIND (20 FT)........SOUTH WINDS 6 TO 8 MPH.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........11     15     10     8      12     26
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............65     60     53     50     47     45
RH..............30     39     50     56     63     70
20 FT WIND......E 6    E 6    SE 6   SE 6   S 7    S 8
20 FT WIND GUST.                                   10
EYE LEVEL WIND..E 4    E 4    SE 4   SE 4   S 5    S 6
EYE LVL WND GST.                                   10
MIX HGT (FT)....6700   4200   300    300    300    300
MIXNG WIND......NE 8   E 6    SE 6   SE 7   S 7    S 7
HAINES INDEX....5      5      4      4      4      4

.FRIDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF RAIN
                    SHOWERS.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........42 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 7 TO 12 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1400 FT AGL INCREASING TO 6200 FT AGL.
MIXING WINDS........SOUTH 6 TO 13 MPH INCREASING TO SOUTHWEST 16 TO
                    24 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR TO EXCELLENT (1300-82900 KNOT-FT)
                    INCREASING TO EXCELLENT TO EXCELLENT
                    (107000-130700 KNOT-FT) LATE IN THE AFTERNOON.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 12 MPH.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........40        63        81        70
WEATHER COV.....          CHANCE    CHANCE    CHANCE
WEATHER TYPE....NONE      RNSHWR    RNSHWR    RNSHWR
TSTM COV........
TEMP............43        54        59        65
RH..............76        57        57        48
20 FT WIND......S 7       SW 9G15   SW 10G15  SW 12G15
EYE LEVEL WIND..S 5       SW 6G15   SW 7G15   SW 9G15
MIX HGT (FT)....300       1000      3300      5600
MIXNG WIND......S 6       SW 13     SW 17     SW 22
HAINES INDEX....4         4         5         4

$$
FORECASTER...AWB
REQUESTED BY...ALEX FOSADO
TYPE OF REQUEST...PRESCRIBED
.TAG 20150430.BRIGH.01/DMX


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