628  
FNUS71 KGYX 160930  
FWSGYX  
 
SPOT FORECAST FOR ME PRESCRIBED FIRE TRAINING EXCHANGE...THE NATURE CONSERVANCY  
NATIONAL WEATHER SERVICE GRAY ME  
530 AM EDT TUE SEP 16 2025  
 
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON SEPTEMBER 16.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT (207) 688-3224, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
IT WILL BE WARM AND DRY TODAY WITH LIGHT WINDS EXPECTED.  
MINIMUM RELATIVE HUMIDITY WILL DROP TO NEAR 50 PERCENT IN THE AFTERNOON  
HOURS, WHILE THE WIND DIRECTION SHIFTS FROM VARIABLE TO A MORE STEADY  
SOUTHEASTERLY FLOW. WINDS WILL STILL BE LIGHT HOWEVER.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). PATCHY FOG IN THE  
MORNING.  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 75.  
MIN HUMIDITY........54 PERCENT.  
DEWPOINT............48 INCREASING TO 55 EARLY IN THE MORNING.  
MAX APPARENT TEMP...75.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......3600 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 2 TO 3 MPH SHIFTING TO THE SOUTHEAST  
5 TO 7 MPH IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (400 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO FAIR (16800 KNOT-FT) IN THE  
AFTERNOON.  
LVORI...............6.  
ADI.................3 INCREASING TO 21 LATE IN THE MORNING, THEN  
DECREASING TO 14 LATE IN THE AFTERNOON.  
 
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........17 17 34 34 34 34 34 34  
WEATHER COV.....PTY PTY  
WEATHER TYPE....FOG FOG  
TSTM COV........NO NO NO NO NO NO NO NO  
CWR.............0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0  
TEMP............67 70 73 74 74 73 72 70  
DEWPOINT........57 57 57 56 56 56 55 55  
RH..............70 63 57 53 53 55 55 59  
APARNT TMP (F)..66 72 73 73 75 73 72 71  
20 FT WIND DIR..E SE SE SE SE SE SE SE  
20 FT WIND SPD..2 2 2 3 5 5 5 5  
20 FT WIND GUST.5 5 5 7 8 9 8 8  
MIX HGT (KFT)...1.6 3.1 3.6 3.6 3.4 2.8 2.4 1.6  
TRANSP WIND DIR.E E E SE SE SE SE SE  
TRANSP WIND SPD.2 5 5 5 6 7 7 7  
LVORI...........4 2 2 2 2 2 2 2  
ADI.............5 18 20 20 24 24 21 14  
VRATE KT-FT/1K..3 12 14 14 17 17 15 10  
VENTRATE CAT....PR PR PR PR PR PR PR PR  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING  
MOSTLY CLOUDY (55-65 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MIN TEMPERATURE.....AROUND 48.  
MAX HUMIDITY........100 PERCENT.  
DEWPOINT............53 DECREASING TO 49 AFTER 3 AM.  
MAX APPARENT TEMP...67.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 6 MPH SHIFTING TO THE WEST 3 TO 5  
MPH LATE IN THE EVENING.  
SMOKE DISPERSAL.....POOR (1200 KNOT-FT).  
LVORI...............7.  
ADI.................4.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........36 36 36 36 36 36 60 60 60 60 60 60  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........NO NO NO NO NO NO NO NO NO NO NO NO  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............67 63 59 57 56 54 53 52 51 50 50 49  
DEWPOINT........55 55 55 55 55 54 53 52 51 50 50 49  
RH..............65 75 87 93 96 100 100 100 100 100 100 100  
APARNT TMP (F)..67 63 60 57 55 54 54 52 52 50 50 50  
20 FT WIND DIR..S S S SW SW W W W W W W W  
20 FT WIND SPD..2 2 2 1 1 1 1 1 1 1 1 1  
20 FT WIND GUST.7 6 5 5 3 3 3 3 3 3 3 3  
MIX HGT (KFT)...0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4  
TRANSP WIND DIR.S S S S SW SW SW W W W W W  
TRANSP WIND SPD.6 6 5 5 5 5 5 5 5 3 3 3  
LVORI...........3 4 5 7 8 8 7 8 7 10 8 8  
ADI.............6 3 2 2 2 2 2 2 2 2 2 2  
VRATE KT-FT/1K..3 2 2 2 2 2 2 2 2 1 1 1  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
   
WEDNESDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT).  
CWR.................0 PERCENT.  
CHANCE OF THUNDER...0 PERCENT.  
MAX TEMPERATURE.....AROUND 74.  
MIN HUMIDITY........55 PERCENT.  
DEWPOINT............52 INCREASING TO 55 LATE IN THE MORNING.  
MAX APPARENT TEMP...72.  
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 5 MPH LATE IN  
THE AFTERNOON.  
MIXING HEIGHT.......3100 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 3 MPH SHIFTING TO THE SOUTH  
LATE IN THE MORNING.  
SMOKE DISPERSAL.....POOR (900 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO FAIR (18600 KNOT-FT) IN THE  
AFTERNOON.  
LVORI...............9 EARLY IN THE MORNING.  
ADI.................3 EARLY IN THE MORNING.  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........73 73 73 73 73 73 64 64 64 64 64 64  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........NO NO NO NO NO NO NO NO NO NO NO NO  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
CHC OF THDR (%).0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............51 52 54 59 63 68 69 71 72 71 70 69  
DEWPOINT........50 52 53 54 54 55 55 55 55 55 56 56  
RH..............96 100 96 83 72 63 61 57 55 57 61 63  
APARNT TMP (F)..48 50 53 58 63 68 69 71 72 71 70 69  
20 FT WIND DIR..W W W SW SW S S S S S S S  
20 FT WIND SPD..1 1 1 1 2 2 3 5 6 6 6 6  
20 FT WIND GUST.3 3 3 3 5 6 7 8 9 9 9 9  
MIX HGT (KFT)...0.4 0.4 0.3 0.8 1.6 2.4 2.7 2.9 3.1 2.5 2.0 1.4  
TRANSP WIND DIR.W W W SW SW S S S S S S S  
TRANSP WIND SPD.3 3 3 3 3 5 6 6 7 8 8 8  
LVORI...........9 8 M M M M M M M M M M  
ADI.............3 3 M M M M M M M M M M  
VRATE KT-FT/1K..1 1 1 2 6 10 12 16 19 17 14 10  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
 

 
FORECASTER...LEGRO  
REQUESTED BY...JON BAILEY  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2521999.0/GYX  
.DELDT 09/16/25  
.FORMATTERVERSION 2.0.0  
.EMAIL JBAILEY@TNC.ORG  
 
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