FNUS74 KLCH 261328 FWSLCH SPOT FORECAST FOR ARCHER FIRE...NATIONAL PARK SERVICE NATIONAL WEATHER SERVICE LAKE CHARLES LA 828 AM CDT TUE OCT 26 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... STRONG SOUTHWEST WINDS WILL CONTINUE TODAY AS A TIGHT PRESSURE GRADIENT REMAINS IN PLACE BETWEEN A POWERFUL STORM SYSTEM IN THE MIDWEST AND HIGH PRESSURE OFF THE EAST COAST. A COLD FRONT WILL MOVE INTO THE LAKES REGION OF SOUTHEAST TEXAS AND CENTRAL LOUISIANA LATER TODAY...LESSENING THE PRESSURE GRADIENT AND DECREASING WINDS AREAWIDE. THE COLD FRONT WILL LINGER IN THE AREA INTO WEDNESDAY NIGHT BEFORE PUSHING SOUTHWARD INTO THE GULF ON THURSDAY...BRINGING STRONG NORTH WINDS THROUGH FRIDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....AROUND 87. MIN HUMIDITY........55 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 6 TO 15 MPH DECREASING TO AROUND 5 MPH LATE IN THE AFTERNOON. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2300-4200 FT AGL INCREASING TO 4900-5800 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTHWEST 28 TO 37 MPH DECREASING TO 8 TO 12 MPH. WIND (20 FT)........ SLOPE/VALLEY.......SOUTHWEST WINDS 6 TO 15 MPH DECREASING TO AROUND 5 MPH LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........79 76 73 70 68 67 66 65 63 61 59 57 WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............74 76 79 81 83 85 86 86 86 84 81 77 RH..............100 93 85 76 68 63 59 57 55 58 66 76 20 FT WIND DIR..S SW SW SW SW SW SW SW SW SW SW SW 20 FT WIND SPD..12 12 12 12 11 10 9 7 6 5 4 2 20 FT WIND GUST.20 20 20 20 20 20 15 15 10 10 5 5 EYE LVL WND DIR.S SW SW SW SW SW SW SW SW SW SW SW EYE LVL WND SPD.12 12 12 12 11 10 9 7 6 5 4 2 EYE LVL WND GST.20 20 20 20 20 20 15 15 10 10 5 5 MIX HGT (KFT)...3.3 4.2 4.9 5.4 5.7 5.8 5.8 5.7 5.5 5.7 5.8 5.6 MIX HGT (KM)....1.0 1.3 1.5 1.6 1.7 1.8 1.8 1.7 1.7 1.7 1.8 1.7 TRANSP WIND DIR.S SW SW SW SW SW SW SW SW SW SW SW TRANSP WIND SPD.32 36 37 33 29 23 18 15 12 9 8 7 TRANS SPD (M/S).14 16 17 15 13 10 8 7 5 4 4 3 HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....AROUND 66. MAX HUMIDITY........92 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3800-5600 FT AGL DECREASING TO 700-800 FT AGL. MIXING WINDS........NORTHEAST 1 TO 7 MPH SHIFTING TO THE SOUTHEAST EARLY IN THE MORNING. WIND (20 FT)........ SLOPE/VALLEY.......LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 88. MIN HUMIDITY........56 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN THE LATE MORNING AND EARLY AFTERNOON...THEN BECOMING LIGHT LATE IN THE AFTERNOON. HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......800-2500 FT AGL INCREASING TO 6700-7900 FT AGL. MIXING WINDS........WEST 5 TO 13 MPH. WIND (20 FT)........ SLOPE/VALLEY.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN THE LATE MORNING AND EARLY AFTERNOON...THEN BECOMING LIGHT LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. $$ FORECASTER...MARCOTTE REQUESTED BY...DEANNA BOENSCH TYPE OF REQUEST...WILDFIRE .TAG 20101026.ARCHE.01/LCH