Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 171331
FWSDMX

SPOT FORECAST FOR UNION HILLS...USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
831 AM CDT FRI APR 17 2015

FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 17.
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 OVER ILLINOIS WILL KEEP WINDS LIGHT ACROSS IOWA
TODAY AND MAINLY FREE OF PRECIPITATION. ALTHOUGH MIXING LEVELS
WILL BE FAIRLY TYPICAL...TEMPERATURES AND HUMIDITY LEVELS WILL BE
SLIGHTLY ABOVE SEASONAL VALUES WITH INTERMITTENT MID AND HIGH
LEVEL CLOUDINESS.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 76.
MIN HUMIDITY........34 PERCENT.
EYE LEVEL WINDS.....WEST WINDS 6 TO 7 MPH EARLY IN THE MORNING
                    BECOMING LIGHT...THEN BECOMING NORTH AROUND 5
                    MPH LATE IN THE MORNING BECOMING LIGHT BECOMING
                    NORTHWEST 5 TO 6 MPH EARLY IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......700 FT AGL INCREASING TO 8000 FT AGL.
MIXING WINDS........NORTHWEST 3 TO 5 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1000-32000 KNOT-FT).
WIND (20 FT)........WEST WINDS 6 TO 7 MPH EARLY IN THE MORNING
                    BECOMING LIGHT...THEN BECOMING NORTH AROUND 5
                    MPH LATE IN THE MORNING BECOMING LIGHT BECOMING
                    NORTHWEST 5 TO 6 MPH EARLY IN THE AFTERNOON.

TIME (CDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........50  49  48  51  58  61  64
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............68  71  72  74  75  76  76
RH..............51  44  42  38  37  34  36
20 FT WIND DIR..N   N   NW  NW  NW  NW  NW
20 FT WIND SPD..5   5   3   5   5   6   6
20 FT WIND GUST.        5
EYE LVL WND DIR.N   N   NW  NW  NW  NW  NW
EYE LVL WND SPD.4   4   2   4   4   4   4
EYE LVL WND GST.        5
MIX HGT (KFT)...2.8 5.0 7.1 7.4 7.7 8.0 7.7
MIXNG WIND DIR..N   N   NW  NW  NW  NW  NW
MIXNG WIND SPD..3   3   3   3   5   5   3
HAINES INDEX....4   4   4   4   4   4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS AND ISOLATED THUNDERSTORMS AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........69 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS AROUND 5 MPH EARLY IN THE EVENING
                    BECOMING LIGHT...THEN BECOMING EAST 5 TO 8 MPH
                    EARLY IN THE EVENING.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........71     75     75     76     76     76
WEATHER COV.....                     S CHC  S CHC  S CHC
WEATHER TYPE....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
TSTM COV........                     ISOLTD ISOLTD ISOLTD
TEMP............75     71     66     60     56     55
RH..............37     44     54     64     69     66
EYE LEVEL WIND..N 4    NE 4   NE 5   NE 6   NE 6   E 6
EYE LVL WND GST.                     10     10     10

.SATURDAY...

SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
                    SHOWERS IN THE MORNING. RAIN SHOWERS LIKELY IN
                    THE AFTERNOON.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........56 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 8 TO 17 MPH SHIFTING TO THE
                    SOUTHEAST 18 TO 20 MPH IN THE AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1400 FT AGL INCREASING TO 4400 FT AGL.
MIXING WINDS........EAST 6 TO 12 MPH INCREASING TO SOUTHEAST 28 TO
                    29 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (1200-50300 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (72300-109700 KNOT-FT)
                    IN THE AFTERNOON.
WIND (20 FT)........EAST WINDS 8 TO 17 MPH SHIFTING TO THE
                    SOUTHEAST 18 TO 20 MPH IN THE AFTERNOON. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........79        79        88        92
WEATHER COV.....CHANCE    CHANCE    CHANCE    LIKELY
WEATHER TYPE....RNSHWR    RNSHWR    RNSHWR    RNSHWR
TSTM COV........ISOLTD    ISOLTD    ISOLTD    ISOLTD
TEMP............53        57        64        67
RH..............69        62        56        59
20 FT WIND......E 8G10    E 14G20   E 18G25   SE 20G30
EYE LEVEL WIND..E 6G10    E 10G20   E 13G25   SE 14G30
MIX HGT (FT)....300       1000      3300      4300
MIXNG WIND......E 6       E 18      E 25      E 28
HAINES INDEX....4         3         3         3

$$
FORECASTER...SMALL
REQUESTED BY...BLAKE KNISLEY
TYPE OF REQUEST...PRESCRIBED
.TAG 20150417.UNION.01/DMX


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