FNUS74 KLUB 071407 FWSLUB FIRE WEATHER PLANNING FORECAST FOR ENTRANCE 2013-W1...TEXAS PARKS AND WILDLIFE DEPARTMENT NATIONAL WEATHER SERVICE LUBBOCK TX 807 AM CST THU MAR 7 2013 FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON MARCH 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A SURFACE LOW PRESSURE SYSTEM NORTH OF THE SOUTH PLAINS WILL PROMOTE A TIGHTENED PRESSURE GRADIENT THIS AFTERNOON...AND THUS WILL INCREASE 20-FOOT SOUTHERLY WIND SPEEDS TO 15-20 MPH. TEMPS 15-20 DEGREES ABOVE NORMAL WILL ENCOURAGE RELATIVE HUMIDITY VALUES TO FALL TO 15-25 PERCENT...WITH LOWEST HUMIDTIES ANTICIPATED ON THE CAPROCK. THUS...20-FOOT WINDS BELOW CRITICAL THRESHOLDS SHOULD MITIGATE FIRE WEATHER CONCERNS. TOMORROW...TEMPS WILL STILL BE WARM...ALBEIT COOLER WITH TEMPS 5-10 DEGREES ABOVE NORMAL...THANKS TO A STORM SYSTEM APPROACHING FROM THE WEST. PERSISTENT SOUTHERLY SURFACE WINDS WILL TRANSPORT AN INCREASE OF LOW LEVEL MOISTURE AND THUS...RELATIVE HUMIDITY VALUES RANGING FROM 30-60 PERCENT BY PEAK HEATING WILL OCCUR. 20-FOOT WINDS WILL BE SLIGHTLY BREEZY /15-20 MPH/ HOWEVER COOLER TEMPS AND HUMIDITIES ABOVE 15 PERCENT WILL PROMOTE LOW FIRE WEATHER CONCERNS. THE STORM SYSTEM APPROACHING FROM THE WEST WILL PROMOTE A CHANCE OF SHOWERS AND THUNDERSTORMS COMMENCING TOMORROW EVENING THROUGH SATURDAY NIGHT. WETTING RAINS WILL OF COURSE AID TO MITIGATE FIRE WEATHER POTENTIAL...HOWEVER LIGHTNING FIRE STARTS WILL BE OF A CONCERN. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 75. MIN HUMIDITY........20 PERCENT. WIND (20 FT)........SOUTH WINDS 6 TO 15 MPH WITH GUSTS TO AROUND 25 MPH INCREASING TO AROUND 17 MPH WITH GUSTS TO AROUND 30 MPH EARLY IN THE AFTERNOON. CWR.................0 PERCENT. LAL.................1. HAINES INDEX........3 TO 5 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......100-1700 FT AGL INCREASING TO 2200-3600 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 6 TO 15 MPH INCREASING TO 16 TO 24 MPH IN THE AFTERNOON. TIME (CST) 10 AM NOON 2 PM 4 PM SKY (%).........35 42 39 36 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............51 63 69 71 RH..............36 24 21 20 20 FT WIND......S 6 S 10 S 13 S 13 20 FT WIND GUST.10 25 30 30 HAINES INDEX....3 3 4 4 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) THEN BECOMING MOSTLY CLOUDY (50-60 PERCENT). MIN TEMPERATURE.....AROUND 47. MAX HUMIDITY........78 PERCENT. WIND (20 FT)........SOUTH WINDS 12 TO 16 MPH. CWR.................0 PERCENT. LAL.................1. HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3400 FT AGL DECREASING TO 0-1300 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTH 17 TO 24 MPH DECREASING TO 7 TO 14 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........34 41 51 59 57 55 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............70 63 58 55 52 50 RH..............22 31 43 53 61 68 20 FT WIND......S 12 SE 10 SE 10 S 9 S 8 S 8 20 FT WIND GUST.25 25 20 20 15 15 HAINES INDEX....5 5 5 5 5 4 .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 67. MIN HUMIDITY........55 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 12 TO 21 MPH. GUSTS UP TO 30 MPH. CWR.................10 PERCENT INCREASING TO 20 PERCENT IN THE AFTERNOON. LAL.................1. HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......200-1900 FT AGL INCREASING TO 2200-2700 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 7 TO 16 MPH INCREASING TO SOUTHEAST 17 TO 26 MPH IN THE AFTERNOON. TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........54 54 54 55 55 56 WEATHER COV..... S CHC S CHC S CHC WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR TEMP............49 50 56 62 65 66 RH..............72 78 67 60 58 58 20 FT WIND......S 8 S 10 S 13 S 14 S 14 S 14 20 FT WIND GUST.15 20 25 30 30 30 HAINES INDEX....3 3 3 3 2 2 $$ FORECASTER...BOWSER REQUESTED BY...MATTHEW POOLE TYPE OF REQUEST...PRESCRIBED .TAG 20130307.ENTRA.01/LUB