FNUS73 KDMX 051456
FWSDMX

SPOT FORECAST FOR RATHBUN LAKE...US COE
NATIONAL WEATHER SERVICE DES MOINES IA
856 AM CST MON MAR 5 2012

FORECAST IS BASED ON IGNITION TIME OF 1130 CST ON MARCH 05.
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...
AREA OF HIGH PRESSURE RIDGED ACROSS EASTERN IOWA WILL CONTINUE TO
SHIFT SOUTHEAST TODAY. SOUTH WINDS WILL INCREASE TODAY AS THE HIGH
PRESSURE MOVES AWAY. A FEW GUSTS BY THIS AFTERNOON WILL APPROACH 25
MPH.

.TODAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 46.
MIN HUMIDITY........43 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTH 6 TO 15 MPH IN THE
                    LATE MORNING AND AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 3300 FT AGL LATE IN
                    THE MORNING.
MIXING WINDS........SOUTHWEST 3 TO 12 MPH SHIFTING TO THE SOUTH 15
                    TO 17 MPH EARLY IN THE AFTERNOON.
SMOKE DISPERSAL.....FAIR (49100 KNOT-FT).
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 6 TO 15 MPH IN THE
                    LATE MORNING AND AFTERNOON.

TIME (CST)      11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........24  26  26  25  24  24  23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............34  37  41  44  45  45  45
RH..............58  56  48  45  43  45  45
20 FT WIND DIR..S   S   S   S   S   S   S
20 FT WIND SPD..8   10  13  14  15  15  15
20 FT WIND GUST.10  15  15  20  20  20  20
EYE LVL WND DIR.S   S   S   S   S   S   S
EYE LVL WND SPD.6   7   9   10  11  11  11
EYE LVL WND GST.10  15  15  20  20  20  20
MIX HGT (KFT)...2.4 2.9 3.0 3.1 3.3 2.9 2.6
MIXNG WIND DIR..SW  SW  SW  S   S   S   S
MIXNG WIND SPD..6   8   12  15  17  17  17
HAINES INDEX....4   4   4   4   4   4   4

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MAX HUMIDITY........76 PERCENT.
EYE LEVEL WINDS.....SOUTH WINDS 14 TO 18 MPH.

TIME (CST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........22     20     17     15     16     17
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
RH..............49     59     64     64     65     70
EYE LEVEL WIND..S 10   S 11   S 12   S 12   S 12   S 13
EYE LVL WND GST.20     25     25     25     25     25

$$
FORECASTER...DONAVON
REQUESTED BY...JOHN PASA
TYPE OF REQUEST...PRESCRIBED
.TAG 20120305.RATHB.04/DMX