Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 231307
FWSDMX

SPOT FORECAST FOR RACCOON RIVER HABITAT AREA  PAUL MONSON...BUENA VISTA COUNTY CONSERVATION
NATIONAL WEATHER SERVICE DES MOINES IA
807 AM CDT THU APR 23 2015

FORECAST IS BASED ON IGNITION TIME OF 1700 CDT ON APRIL 23.
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...
HIGH PRESSURE WILL KEEP WINDS LIGHT BECOMING SOUTHERLY WITH
CLEARING SKIES. RH VALUES WILL BE LOW IN THE AFTERNOON BETWEEN 20
TO 30 PERCENT. PRECIPITATION CHANCES WILL INCREASE TONIGHT AFTER
MIDNIGHT AND CONTINUE THROUGH THE DAY FRIDAY.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). PATCHY FROST
                    EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........24 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
                    LATE IN THE MORNING...THEN BECOMING LIGHT EARLY
                    IN THE AFTERNOON BECOMING SOUTH 5 TO 8 MPH
                    EARLY IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......2100 FT AGL INCREASING TO 6100 FT AGL.
MIXING WINDS........NORTHEAST AROUND 2 MPH SHIFTING TO THE EAST
                    LATE IN THE MORNING...THEN SHIFTING TO THE
                    SOUTH 3 TO 12 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (500-54000 KNOT-FT).
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
                    LATE IN THE MORNING...THEN BECOMING LIGHT EARLY
                    IN THE AFTERNOON BECOMING SOUTH 5 TO 8 MPH
                    EARLY IN THE AFTERNOON.

TIME (CDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........54  62  70  60  64  29  1   0   0   0   0   28
WEATHER COV.....PTY PTY
WEATHER TYPE....FST FST
TSTM COV........
TEMP............39  39  41  43  45  48  52  55  57  59  59  60
RH..............44  40  39  36  35  33  28  26  25  24  24  25
20 FT WIND DIR..NE  W   SW  S   E   SE  SE  S   S   S   S   S
20 FT WIND SPD..3   1   2   3   5   5   5   3   5   6   7   8
20 FT WIND GUST.5           5               5               10
EYE LVL WND DIR.NE  W   SW  S   E   SE  SE  S   S   S   S   S
EYE LVL WND SPD.2   1   1   2   4   4   4   2   4   4   5   6
EYE LVL WND GST.5           5               5               10
MIX HGT (KFT)...0.3 0.3 0.9 1.5 2.1 3.4 4.7 6.0 6.1 6.1 6.1 5.5
MIXNG WIND DIR..NW  NW  N   NE  E   E   S   W   SW  SW  S   S
MIXNG WIND SPD..2   2   2   2   2   2   3   5   6   8   9   12
HAINES INDEX....4   4   4   4   4   4   3   3   3   3   3   3

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS AFTER MIDNIGHT. CHANCE OF RAIN
                    SHOWERS EARLY IN THE MORNING.
MIN TEMPERATURE.....AROUND 44.
MAX HUMIDITY........82 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 8 TO 13 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4900 FT AGL DECREASING TO 1600 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
MIXING WINDS........SOUTHEAST 9 TO 14 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2000-55800 KNOT-FT) DECREASING TO
                    POOR TO POOR (2100-4900 KNOT-FT) AFTER
                    MIDNIGHT.
WIND (20 FT)........SOUTHEAST WINDS 8 TO 13 MPH.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........15     19     30     50     53     72
WEATHER COV.....                            S CHC  CHANCE
WEATHER TYPE....NONE   NONE   NONE   NONE   RNSHWR RNSHWR
TSTM COV........
TEMP............58     54     49     46     45     44
RH..............29     35     52     60     65     70
20 FT WIND......S 8    SE 9   SE 10  SE 12  SE 12  SE 13
20 FT WIND GUST.10     15     15     15     15     15
EYE LEVEL WIND..S 6    SE 6   SE 7   SE 9   SE 9   SE 9
EYE LVL WND GST.10     15     15     15     15     15
MIX HGT (FT)....4900   3000   300    300    300    500
MIXNG WIND......S 13   S 13   SE 9   SE 10  SE 9   SE 9
HAINES INDEX....3      3      3      3      3      3

.FRIDAY...

MAX TEMPERATURE.....AROUND 54.
MIN HUMIDITY........68 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 14 TO 17 MPH.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
TEMP............45        44        50        53
RH..............70        82        74        71
EYE LEVEL WIND..SE 10G20  SE 11G25  SE 12G25  SE 12G25

$$
FORECASTER...AWB
REQUESTED BY...GREG JOHNSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20150423.RACCO.01/DMX


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