FNUS74 KLCH 172210 FWSLCH SPOT FORECAST FOR WH CAVERN 7 03 17 10...DYNMCDERMOTT NATIONAL WEATHER SERVICE LAKE CHARLES LA 510 PM CDT WED MAR 17 2010 ....THIS IS A TEST...REPEAT TEST EXERCISE... IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A DOME OF HIGH PRESSURE ACROSS KANSAS WILL BUILD SOUTHWARD INTO EAST TEXAS ON THURSDAY...BEFORE EXITING EASTWARD ACROSS LOUISIANA BY THURSDAY EVENING. A CANADIAN FRONT WILL ADVANCE INTO SOUTHEAST TEXAS BY EARLY AFTERNOON SATURDAY...EXITING SOUTH CENTRAL LOUISIANA BY EARLY EVENING SATURDAY. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). PATCHY FOG AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 46. MAX HUMIDITY........91 PERCENT. WIND (EYE LEVEL)....NORTH WINDS 5 TO 7 MPH EARLY IN THE EVENING BECOMING LIGHT...THEN BECOMING NORTH AROUND 5 MPH LATE IN THE NIGHT. 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. 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. WAVE HEIGHT.........0 FEET. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........M 32 33 36 39 42 44 46 43 36 29 23 WEATHER COV.....M PTY PTY PTY PTY PTY WEATHER TYPE....M FOG FOG FOG FOG FOG TEMP............M 60 57 55 53 52 51 51 50 49 49 48 RH..............M 55 65 72 76 79 79 81 84 89 91 89 EYE LVL WND DIR.M NW NW N N N N N N N N N EYE LVL WND SPD.M 5 5 4 4 3 3 3 3 3 3 4 EYE LVL WND GST.M 10 10 5 5 5 5 5 5 5 5 5 WAVE HEIGHT(FT).M 0 0 0 0 0 0 0 0 0 0 0 .THURSDAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 66. MIN HUMIDITY........50 PERCENT. WIND (EYE LEVEL)....WEST WINDS 5 TO 6 MPH. MIXING HEIGHT.......200-2000 FT AGL INCREASING TO 6000-7700 FT AGL. MIXING WINDS........NORTH 7 TO 10 MPH. MIXING HEIGHT.......200-2000 FT AGL INCREASING TO 6000-7700 FT AGL. MIXING WINDS........NORTH 7 TO 10 MPH. WAVE HEIGHT.........0 FEET. .THURSDAY NIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 46. MAX HUMIDITY........96 PERCENT. WIND (EYE LEVEL)....SOUTHWEST WINDS 5 TO 6 MPH EARLY IN THE EVENING BECOMING LIGHT. MIXING HEIGHT.......4000-5800 FT AGL DECREASING TO 200-2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTHWEST 7 TO 8 MPH SHIFTING TO THE SOUTHWEST 3 TO 5 MPH EARLY IN THE EVENING. MIXING HEIGHT.......4000-5800 FT AGL DECREASING TO 200-2100 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTHWEST 7 TO 8 MPH SHIFTING TO THE SOUTHWEST 3 TO 5 MPH EARLY IN THE EVENING. WAVE HEIGHT.........0 FEET. $$ FORECASTER...KUYPER REQUESTED BY...DAPHNE MOSELEY TYPE OF REQUEST...HAZMAT .TAG 20100317.WHCAV.01/LCH