Suppression Forecast
Issued by NWS Des Moines, IA

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000
FNUS73 KDMX 171556
FWSDMX

SPOT FORECAST FOR ETTRICK WMA...IOWA DNR-USFWS
NATIONAL WEATHER SERVICE DES MOINES IA
1056 AM CDT FRI APR 17 2015

FORECAST IS BASED ON IGNITION TIME OF 1500 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 (55-65 PERCENT).
TEMPERATURE.........75 AT IGNITION...MAX 75.
RH..................37 PERCENT AT IGNITION...MIN 37 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 9 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1000 FT AGL INCREASING TO 7800 FT AGL.
MIXING WINDS........NORTH 2 TO 6 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1000-20600 KNOT-FT).
WIND (20 FT)........WINDS NORTHEAST AT 7 MPH AT
                    IGNITION...OTHERWISE NORTHEAST WINDS 5 TO 9
                    MPH.

TIME (CDT)      4PM 5PM
SKY (%).........65  68
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............75  74
RH..............37  37
20 FT WIND DIR..NE  NE
20 FT WIND SPD..7   7
20 FT WIND GUST.
EYE LVL WND DIR.NE  NE
EYE LVL WND SPD.5   5
EYE LVL WND GST.
MIX HGT (KFT)...7.8 7.8
MIXNG WIND DIR..N   N
MIXNG WIND SPD..2   2
HAINES INDEX....4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF
                    RAIN SHOWERS AFTER MIDNIGHT. ISOLATED
                    THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF RAIN
                    SHOWERS EARLY IN THE MORNING.
TEMPERATURE.........MIN 53.
RH..................MAX 74 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 8 TO 9 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......7800 FT AGL DECREASING TO 300 FT AGL.
MIXING WINDS........NORTHEAST 2 TO 8 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1300-23500 KNOT-FT).
WIND (20 FT)........EAST WINDS 8 TO 9 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS AFTER MIDNIGHT.

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........73     76     76     78     80     84
WEATHER COV.....                     S CHC  S CHC  S CHC
WEATHER TYPE....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
TSTM COV........                     ISOLTD ISOLTD ISOLTD
TEMP............73     69     65     60     57     55
RH..............38     45     50     60     64     66
20 FT WIND......NE 8   NE 8   NE 9   NE 9   NE 9   E 9
20 FT WIND GUST.10     10     10     10     10     10
EYE LEVEL WIND..NE 6   NE 6   NE 6   NE 6   NE 6   E 6
EYE LVL WND GST.10     10     10     10     10     10
MIX HGT (FT)....7800   5300   300    300    300    300
MIXNG WIND......NE 2   NE 5   NE 6   NE 6   NE 6   NE 7
HAINES INDEX....4      4      4      4      4      4

.SATURDAY...

SKY/WEATHER.........CLOUDY (90-100 PERCENT). CHANCE OF RAIN SHOWERS
                    IN THE MORNING. RAIN SHOWERS LIKELY EARLY IN
                    THE AFTERNOON...THEN RAIN SHOWERS LATE IN THE
                    AFTERNOON.
TEMPERATURE.........MAX 65.
RH..................MIN 65 PERCENT.
EYE LEVEL WINDS.....EAST WINDS 9 TO 18 MPH SHIFTING TO THE
                    SOUTHEAST 17 TO 20 MPH IN THE AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 4000 FT AGL IN THE
                    AFTERNOON.
MIXING WINDS........EAST 9 TO 16 MPH INCREASING TO SOUTHEAST 21 TO
                    29 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (2000-39900 KNOT-FT) INCREASING TO
                    EXCELLENT TO EXCELLENT (65100-96400 KNOT-FT) IN
                    THE AFTERNOON.
WIND (20 FT)........EAST WINDS 9 TO 18 MPH SHIFTING TO THE
                    SOUTHEAST 17 TO 20 MPH IN THE AFTERNOON. GUSTY
                    AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........91        96        99        96
WEATHER COV.....CHANCE    CHANCE    CHANCE    LIKELY
WEATHER TYPE....RNSHWR    RNSHWR    RNSHWR    RNSHWR
TSTM COV........ISOLTD    ISOLTD    ISOLTD    ISOLTD
TEMP............53        55        62        65
RH..............74        72        65        68
20 FT WIND......E 9G10    E 14G20   E 18G25   E 20G30
EYE LEVEL WIND..E 6G10    E 10G20   E 13G25   E 14G30
MIX HGT (FT)....300       600       2800      3900
MIXNG WIND......E 9       E 21      SE 28     E 28
HAINES INDEX....3         3         3         3

$$
FORECASTER...CURTIS
REQUESTED BY...STEVE WOODRUFF
TYPE OF REQUEST...PRESCRIBED
.TAG 20150417.ETTRI.01/DMX



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