254  
FNUS74 KLCH 311101  
FWSLCH  
 
SPOT FORECAST FOR SABINE NORTHLINE REC AREA & ISLES...USFWS  
NATIONAL WEATHER SERVICE LAKE CHARLES LA  
601 AM CDT TUE OCT 31 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON OCTOBER 31.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (337) 477-5285, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
SOUTHERLY WINDS WILL CONTINUE TO USHER IN HIGHER MOISTURE  
THROUGH THE DAY TODAY WITH DEWPOINTS RISING INTO THE LOWER 60'S  
BY THIS AFTERNOON. A FRONTAL BOUNDARY WILL APPROACH THE AREA  
TONIGHT BEFORE STALLING WHICH WILL RESULT IN SCATTERED TO NUMEROUS  
SHOWERS AND THUNDERSTORMS ACROSS MUCH OF THE AREA BEGINNING LATE THIS  
EVENING AND INCREASING AFTER MIDNIGHT. NUMEROUS SHOWERS AND THUNDERSTORMS  
WILL CONTINUE THROUGH MUCH OF THE DAY WEDNESDAY.  
   
TODAY
 
 
SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT).  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........62 PERCENT.  
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST 5 TO 8 MPH IN  
THE LATE MORNING AND AFTERNOON.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 8 MPH IN  
THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......300-2000 FT AGL INCREASING TO 4500-5300 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 3 TO 12 MPH SHIFTING TO THE SOUTH 13  
TO 16 MPH EARLY IN THE AFTERNOON.  
 
TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........60 65 69 74 73 73 72 70 67 65 66  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
TEMP............63 63 65 68 70 72 73 74 74 74 74  
RH..............90 93 87 81 73 68 64 62 62 62 62  
20 FT WIND DIR..E E SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..3 3 5 6 7 7 8 8 8 8 8  
20 FT WIND GUST.5 5 10 10 10 10 15 15 15 15 15  
EYE LVL WND DIR.E E SE SE SE SE SE SE SE SE SE  
EYE LVL WND SPD.2 2 3 4 4 4 4 5 5 5 4  
EYE LVL WND GST.5 5 10 10 10 10 15 15 15 15 15  
MIX HGT (KFT)...0.3 1.2 2.0 2.9 3.7 4.5 5.3 5.2 5.1 5.1 4.5  
TRANSP WIND DIR.E SE SE S SE SE SE SE S S S  
TRANSP WIND SPD.3 6 9 12 12 12 12 13 14 15 16  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SHOWERS LIKELY  
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER  
MIDNIGHT.  
MIN TEMPERATURE.....AROUND 67.  
MAX HUMIDITY........97 PERCENT.  
EYE LEVEL WINDS.....SOUTH WINDS 7 TO 8 MPH.  
WIND (20 FT)........SOUTH WINDS 7 TO 8 MPH. GUSTY AND ERRATIC WINDS  
EXPECTED NEAR THUNDERSTORMS AFTER MIDNIGHT.  
MIXING HEIGHT.......2200-3900 FT AGL DECREASING TO 1700-2800 FT AGL  
IN THE LATE EVENING AND OVERNIGHT.  
TRANSPORT WINDS.....SOUTH 13 TO 20 MPH.  
 
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........66 67 68 68 69 72 76 79 80 82 83 84  
WEATHER COV..... LKY LKY LKY LKY LKY  
WEATHER TYPE.... RW RW RW RW RW  
TSTM COV........ SCH SCH SCH SCH SCH  
TEMP............73 71 70 70 69 69 69 68 68 68 68 68  
RH..............66 71 73 76 78 81 84 90 90 93 93 93  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE S S  
20 FT WIND SPD..8 7 7 7 7 7 7 7 7 8 8 8  
20 FT WIND GUST.15 10 10 10 10 10 10 10 10 15 15 15  
EYE LVL WND DIR.SE SE SE SE SE SE SE SE SE SE S S  
EYE LVL WND SPD.4 4 4 4 4 4 4 4 4 4 4 4  
EYE LVL WND GST.15 10 10 10 10 10 10 10 10 15 15 15  
MIX HGT (KFT)...3.9 3.3 2.7 2.2 1.7 1.9 2.1 2.3 2.5 2.7 2.8 2.7  
TRANSP WIND DIR.S S SE SE SE SE S S S S S S  
TRANSP WIND SPD.16 16 15 14 13 14 16 18 20 20 20 20  
   
WEDNESDAY
 
 
SKY/WEATHER.........CLOUDY (85-95 PERCENT). SHOWERS LIKELY EARLY IN  
THE MORNING, THEN SHOWERS AND THUNDERSTORMS IN  
THE MORNING. SHOWERS AND THUNDERSTORMS LIKELY  
IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........82 PERCENT.  
EYE LEVEL WINDS.....SOUTH WINDS 8 TO 10 MPH.  
WIND (20 FT)........SOUTH WINDS 8 TO 10 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS.  
MIXING HEIGHT.......2400-3400 FT AGL.  
TRANSPORT WINDS.....SOUTH 20 TO 29 MPH.  
 
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........86 87 89 90 92 91 91 90 88 86 84 84  
WEATHER COV.....LKY DEF DEF DEF DEF DEF DEF LKY LKY LKY LKY LKY  
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW  
TSTM COV........SCH DEF DEF DEF DEF DEF DEF LKY LKY LKY LKY LKY  
TEMP............68 67 68 69 71 72 73 74 74 75 75 74  
RH..............93 97 97 93 90 87 84 82 84 82 84 87  
20 FT WIND DIR..S S S S S S S S S S S S  
20 FT WIND SPD..8 8 8 8 8 8 8 9 10 10 10 10  
20 FT WIND GUST.15 15 15 15 15 15 15 15 15 15 15 15  
EYE LVL WND DIR.S S S S S S S S S S S S  
EYE LVL WND SPD.4 4 4 4 4 5 5 5 6 6 6 6  
EYE LVL WND GST.15 15 15 15 15 15 15 15 15 15 15 15  
MIX HGT (KFT)...2.6 2.5 2.7 2.8 3.0 3.2 3.3 3.4 3.2 2.9 2.7 2.4  
TRANSP WIND DIR.S S S S S S S S S S S S  
TRANSP WIND SPD.20 20 21 22 23 24 26 28 29 29 28 25  
 

 
FORECASTER...JONES  
REQUESTED BY...JON KING  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1718141.0/LCH  
.EMAIL JON_KING@FWS.GOV  
 
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