FNUS74 KLCH 171451
FWSLCH

SPOT FORECAST FOR WH CAVERN 7 03 17 10...DYNMCDERMOTT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
951 AM CDT WED MAR 17 2010

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

.DISCUSSION...
LIGHT NORTHWEST WINDS WILL PERSIST TODAY AS SURFACE HIGH PRESSURE
SETTLES INTO THE REGION. LOW CLOUDS AND PATCHY FOG WILL GRADUALLY
LIFT THIS MORNING...WITH PARTLY CLOUDY SKIES FOR THE REMAINDER OF
THE AFTERNOON.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). PATCHY FOG IN THE
                    MORNING.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........45 PERCENT.
WIND (EYE LEVEL)....NORTHWEST WINDS 7 TO 9 MPH.
MIXING HEIGHT.......200-2100 FT AGL INCREASING TO 4700-5200 FT AGL.
MIXING WINDS........NORTHWEST 7 TO 16 MPH.
SMOKE DISPERSION....FAIR IN THE MORNING BECOMING VERY GOOD IN THE AFTERNOON.

TIME (CDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
SKY (%).........60  56  51  49  48  45  43  40  38  36  37  38
WEATHER COV.....PTY PTY
WEATHER TYPE....FOG FOG
TEMP............57  59  61  63  64  65  65  64  62  60  57  55
RH..............72  64  57  51  48  47  45  46  51  55  65  72
EYE LVL WND DIR.NW  NW  NW  NW  NW  NW  NW  NW  N   N   N   N
EYE LVL WND SPD.6   6   6   6   6   6   6   6   5   5   5   5
EYE LVL WND GST.15  15  15  15  10  10  10  10  10  10  10  10

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....AROUND 46.
MAX HUMIDITY........91 PERCENT.
WIND (EYE LEVEL)....NORTH WINDS 7 TO 8 MPH.
MIXING HEIGHT.......3000-4300 FT AGL DECREASING TO 200 FT AGL.
MIXING WINDS........NORTHWEST 9 TO 16 MPH DECREASING TO 6 TO 8 MPH
                    IN THE LATE EVENING AND OVERNIGHT.
SMOKE DISPERSION....GOOD IN THE EVENING BECOMING POOR AFTER MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........50 PERCENT.
WIND (EYE LEVEL)....NORTHWEST WINDS 5 TO 8 MPH BECOMING LIGHT.
MIXING HEIGHT.......200-2000 FT AGL INCREASING TO 6000-7700 FT AGL.
MIXING WINDS........NORTH 7 TO 10 MPH.
SMOKE DISPERSION....POOR IN THE EARLY MORNING...BECOMING GOOD BY LATE
                    MORNING...THEN VERY GOOD IN THE AFTERNOON.

$$
FORECASTER...RUA
REQUESTED BY...DAPHNE MOSELEY
TYPE OF REQUEST...HAZMAT
.TAG 20100317.WHCAV.01/LCH