FNUS74 KLCH 050247
FWSLCH

SPOT FORECAST FOR LAWTELL DERAILMENT...NWS LCH
NATIONAL WEATHER SERVICE LAKE CHARLES LA
947 PM CDT SUN AUG 4 2013

IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
AN EXTENSIVE DOME OF HIGH PRESSURE ACROSS EAST TEXAS WILL
DRIFT SOUTHWARD...REACHING VICINITY HOUSTON ON WEDNESDAY.

THE TEXAS DOME OF HIGH PRESSURE WILL BEGIN TO BREAKDOWN ON
THURSDAY/FRIDAY...PERMITTING A TROUGH ALOFT TO TRAVEL
WESTWARD THROUGH THE NORTHWEST GULF OF MEXICO.


.TONIGHT...

SKY/WEATHER.........BECOMING PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....AROUND 74.
MAX HUMIDITY........95 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS LESS THAN 5 MPH...SHIFTING
                    WEST.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6200-6800 FT AGL DECREASING TO 300-1400 FT AGL.
MIXING WINDS........SOUTH 2 TO 9 MPH SHIFTING TO THE SOUTHWEST 5 TO
                    6 MPH AFTER MIDNIGHT.

TIME (CDT)      10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM 7AM 8AM 9AM
SKY (%).........47  46  45  42  42  42  43  44  44  45  45  45
WEATHER COV.....
WEATHER TYPE....
TEMP............80  79  78  78  77  77  76  76  76  75  78  83
RH..............85  87  90  89  90  91  93  94  95  93  83  73
EYE LVL WND DIR.SW  SW  SW  SW  SW  SW  W   W   W   W   W   W
EYE LVL WND SPD.3   2   2   2   2   2   2   2   2   2   3   5
EYE LVL WND GST.10  5   5   5   5   5   5               5   10
MIX HGT (KFT)...1.4 1.1 0.7 0.4 0.4 0.4 0.3 0.3 0.4 0.4 1.7 3.1
MIX HGT (KM)....0.4 0.3 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.5 0.9
TRANSP WIND DIR.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  W   W
TRANSP WIND SPD.16  14  10  7   6   6   6   5   5   5   7   8
TRANS SPD (M/S).7   6   4   3   3   3   3   2   2   2   3   4
HAINES INDEX....2   2   2   2   2   2   2   2   2   2   2   2

.MONDAY...

SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 94.
MIN HUMIDITY........53 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH IN
                    THE LATE MORNING AND AFTERNOON.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......400-1700 FT AGL INCREASING TO 7300-8100 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 10 MPH.

.MONDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (45-55 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....AROUND 74.
MAX HUMIDITY........96 PERCENT.
EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 6 MPH IN THE EVENING
                    BECOMING LIGHT.
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5700-6500 FT AGL DECREASING TO 200-400 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 14 MPH.

$$
FORECASTER...ESCUDE/TRARES
REQUESTED BY...ROGER ERICKSON
TYPE OF REQUEST...HAZMAT
.TAG 20130804.LAWTE.01/LCH