FNUS73 KDVN 201428
FWSDVN

SPOT FORECAST FOR LOUISA BURN PILES...PORT LOUISA NWR
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
828 AM CST FRI JAN 20 2012

FORECAST IS BASED ON IGNITION TIME OF 0930 CST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN UPPER LEVEL STORM SYSTEM WILL SPREAD MODERATE TO HEAVY SNOW ACROSS EASTERN
IOWA INTO NORTHWEST ILLINOIS TODAY. IN INVERTED TROUGH WILL PASS THROUGH THE
REGION...CAUSING EASTERLY WINDS TO GRADUALLY SHIFT TO THE NORTHEAST AND THEN
NORTH BY TONIGHT. SNOW WILL END THIS EVENING...FOLLOWED BY CLEARING SKIES
SATURDAY MORNING. AN ARCTIC AIRMASS WILL REMAIN IN PLACE...WITH TEMPERATURES
TODAY AND SATURDAY RISING NO HIGHER THAN THE TEENS OVER EAST CENTRAL IOWA WITH
OVERNIGHT LOWS IN THE SINGLE DIGITS.

.TODAY...

SKY/WEATHER.........CLOUDY. SNOW.
TEMPERATURE.........12 AT IGNITION...MAXIMUM 17.
RH..................60 PERCENT AT IGNITION...MIN 60 PERCENT.
EYE LEVEL WINDS.....WINDS EAST AT 6 MPH AT IGNITION...OTHERWISE
                    NORTHEAST WINDS 6 TO 8 MPH.
WIND SHIFT..........NONE
MIXING HEIGHT.......1200 FT AGL.
MIXING WINDS........EAST 12 TO 18 MPH.

TIME (CST)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY
WEATHER COV.....DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE
WEATHER TYPE....SNOW   SNOW   SNOW   SNOW   SNOW
TEMP............11     14     15     17     14
RH..............76     70     73     77     88
EYE LEVEL WIND..100/9  100/10 090/9  080/7  050/8
EYE LEVEL GUST..8      10     10     10     10

.TONIGHT...

SKY/WEATHER.........CLOUDY THEN BECOMING PARTLY CLOUDY.
                    CHANCE OF SNOW IN THE EVENING.
TEMPERATURE.........MIN 3.
RH..................MAX 100 PERCENT.
EYE LEVEL WINDS.....NORTH WINDS 5 TO 7 MPH.
WIND SHIFT..........NONE
CWR.................40 PERCENT DECREASING TO 10 PERCENT AFTER
                    MIDNIGHT.
LAL.................1
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1200 FT DIMINISHING TO 500 FT AGL.
MIXING WINDS........NORTH 12 TO 15 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
TEMPERATURE.........MAX 22.
RH..................MIN 59 PERCENT.
EYE LEVEL WINDS.....NORTHEAST WINDS AROUND 5 MPH EARLY IN THE
                    MORNING BECOMING LIGHT...THEN BECOMING EAST 5
                    TO 6 MPH LATE IN THE AFTERNOON.
WIND SHIFT..........NONE
CWR.................0 PERCENT.
LAL.................1
HAINES INDEX........2 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE
                    PLUME DOMINATED FIRE GROWTH.
MIXING HEIGHT.......500 FT INCREASING TO 1000 FT AGL.
MIXING WINDS........EAST 5 TO 10 MPH.

$$
FORECASTER...SHEETS
REQUESTED BY...ERIK ACKER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120120.LOUIS.01/DVN