FNUS73 KDMX 011311
FWSDMX

SPOT FORECAST FOR RATHBUN LAKE...US COE
NATIONAL WEATHER SERVICE DES MOINES IA
711 AM CST WED FEB 1 2012

FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON FEBRUARY 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER
SERVICE FOR EACH PRESCRIBED BURN.

.DISCUSSION...
HIGH PRESSURE SITUATED THROUGH THE MISSISSIPPI VALLEY WILL
ALLOW FOR MOSTLY SUNNY SKIES OVER SOUTHERN IOWA THURSDAY. WINDS
WILL BE LIGHT...GRADUALLY SHIFTING FROM NORTH TO EAST THROUGHOUT
THE DAY. THE INVERSION WILL JUST BE DISSIPATING BY 1000 AM. TRANSPORT
WINDS WILL BE QUITE LIGHT.


.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........45 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING EAST 5 TO 7 MPH EARLY IN
                    THE AFTERNOON.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1800 FT AGL INCREASING TO 3300 FT AGL EARLY IN
                    THE AFTERNOON...THEN DECREASING TO 1300 FT AGL
                    LATE IN THE AFTERNOON.
MIXING WINDS........WEST 1 TO 5 MPH SHIFTING TO THE EAST 1 TO 7 MPH
                    LATE IN THE MORNING.
SMOKE DISPERSAL.....POOR (13100 KNOT-FT).
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 7 MPH EARLY IN
                    THE AFTERNOON.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........19  21  25  29  34  38  40  40  41  41  42  43
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............33  32  34  37  41  45  48  51  53  55  53  52
RH..............78  85  82  75  67  60  56  50  48  45  48  50
20 FT WIND DIR..NW  NW  N   N   N   NE  NE  NE  E   E   E   E
20 FT WIND SPD..2   2   2   2   2   2   2   3   5   5   6   7
20 FT WIND GUST.                            5
EYE LVL WND DIR.NW  NW  N   N   N   NE  NE  NE  E   E   E   E
EYE LVL WND SPD.1   1   1   1   1   1   1   2   4   4   4   5
EYE LVL WND GST.                            5
MIX HGT (KFT)...0.3 0.3 0.3 0.3 0.5 0.8 1.0 1.8 2.5 3.3 2.3 1.3
MIXNG WIND DIR..W   W   W   W   W   S   S   SE  SE  SE  SE  E
MIXNG WIND SPD..5   3   2   1   1   1   2   3   3   5   6   7
HAINES INDEX....5   5   5   5   5   4   4   4   4   4   4   5

$$
FORECASTER...SMALL
REQUESTED BY...JOHN PASA
TYPE OF REQUEST...PRESCRIBED
.TAG 20120202.RATHB.01/DMX