508  
FNUS71 KGYX 141953  
FWSGYX  
 
SPOT FORECAST FOR THREE PONDS...USFS  
NATIONAL WEATHER SERVICE GRAY ME  
353 PM EDT TUE SEP 14 2021  
 
FORECAST IS BASED ON FORECAST START TIME OF 1600 EDT ON SEPTEMBER 14.  
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.  
 
HIGH PRESSURE A QUIET WEATHER TODAY INTO TONIGHT. HUMIDITY WILL  
REMAIN MODERATE TODAY, WITH GOOD RECOVERY TONIGHT AS CLOUDS AND  
DEW POINTS INCREASE. SOUTHEASTERLY WINDS TODAY WILL DIMINISH AND  
TURN SOUTHERLY TONIGHT. HUMIDITY INCREASES TOMORROW AND WINDS TURN  
TO THE SOUTHWEST, COMING AROUND AND THEN DOWN CARR MOUNTAIN. A  
COLD FRONT CROSSES TOMORROW WITH A SIGNIFICANT SEVERE  
THUNDERSTORMS RISK, INCLUDING HEAVY RAINFALL... DAMAGING WINDS...  
AND HAIL. APPROXIMATE TIMING FOR THIS FRONT IS IN THE 3 PM TO 7 PM  
TIME RANGE.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
CWR.................0 PERCENT.  
LAL.................NO TSTMS.  
MAX TEMPERATURE.....AROUND 69.  
MIN HUMIDITY........53 PERCENT.  
DEWPOINT............52.  
MAX APPARENT TEMP...69.  
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH.  
MIXING HEIGHT.......3100 FT AGL.  
TRANSPORT WINDS.....SOUTH 12 TO 13 MPH.  
SMOKE DISPERSAL.....FAIR (27900 KNOT-FT).  
LVORI...............1.  
ADI.................46.  
HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CEILING (KFT).......20 DECREASING TO 16 LATE IN THE AFTERNOON.  
 
TIME (EDT) 4PM 5PM  
SKY (%).........42 42  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........NO NO  
CWR.............0 0  
LAL.............1 1  
TEMP............67 69  
DEWPOINT........54 51  
RH..............63 53  
APARNT TMP (F)..67 69  
20 FT WIND DIR..S S  
20 FT WIND SPD..5 5  
20 FT WIND GUST.8 10  
MIX HGT (KFT)...3.1 2.5  
TRANSP WIND DIR.S S  
TRANSP WIND SPD.12 13  
LVORI...........1 1  
ADI.............49 43  
HAINES INDEX....2 2  
VRATE KT-FT/100030 28  
CEILING (KFT)...20 16  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF  
RAIN SHOWERS LATE IN THE EVENING. ISOLATED  
THUNDERSTORMS IN THE LATE EVENING AND  
OVERNIGHT. CHANCE OF RAIN SHOWERS OVERNIGHT.  
AREAS OF FOG OVERNIGHT. AREAS OF FOG AFTER 3  
AM.  
CWR.................0 PERCENT INCREASING TO 27 PERCENT EARLY IN THE  
EVENING.  
LAL.................NO TSTMS UNTIL 2200, THEN 1-8 STRIKES.  
MIN TEMPERATURE.....AROUND 56.  
MAX HUMIDITY........100 PERCENT.  
DEWPOINT............55.  
MAX APPARENT TEMP...67.  
WIND (20 FT)........SOUTHEAST WINDS 6 TO 7 MPH. GUSTY AND ERRATIC  
WINDS EXPECTED NEAR THUNDERSTORMS IN THE LATE  
EVENING AND OVERNIGHT.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 6 TO 15 MPH.  
SMOKE DISPERSAL.....FAIR (25800 KNOT-FT) EARLY IN THE EVENING  
DECREASING TO POOR (900 KNOT-FT) LATE IN THE  
NIGHT.  
LVORI...............5.  
ADI.................29 DECREASING TO 12 EARLY IN THE EVENING.  
HAINES INDEX........2 TO 3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CEILING (KFT).......8.3 DECREASING TO 0.4.  
 
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........68 68 68 68 68 68 88 88 88 88 88 88  
WEATHER COV..... SCH SCH SCH CHC CHC CHC CHC CHC CHC  
WEATHER TYPE.... RW RW RW RW RW RW RNF RNF RNF  
TSTM COV........NO NO NO ISO ISO ISO ISO ISO ISO ISO ISO ISO  
CWR.............0 0 30 30 30 30 30 30 30 30 30 30  
LAL.............1 1 1 1 2 2 2 2 2 2 2 2  
TEMP............67 64 59 59 58 58 58 58 58 58 58 58  
DEWPOINT........53 55 56 56 55 55 55 55 55 56 56 57  
RH..............61 73 90 90 90 90 90 90 90 93 93 96  
APARNT TMP (F)..67 64 59 59 58 58 58 58 58 58 58 58  
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE SE SE SE  
20 FT WIND SPD..6 6 6 6 7 7 7 6 6 6 6 6  
20 FT WIND GUST.11 11 13 14 14 14 13 11 12 13 12 12  
MIX HGT (KFT)...2.1 1.7 1.3 1.1 0.8 0.6 0.5 0.5 0.4 0.3 0.3 0.2  
TRANSP WIND DIR.S S SE SE SE SE SE SE SE S S S  
TRANSP WIND SPD.14 15 15 15 14 13 12 10 9 8 7 6  
LVORI...........3 3 5 5 5 5 5 5 5 6 5 6  
ADI.............33 24 15 16 16 13 12 10 10 7 12 8  
HAINES INDEX....2 3 3 3 3 3 3 3 3 3 3 3  
VRATE KT-FT/100026 22 17 14 10 6 5 4 3 2 1 1  
CEILING (KFT)...8.3 6.2 4.8 4.6 3.9 4.7 3.7 3.5 3.0 0.8 0.5 0.4  
   
WEDNESDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). AREAS OF FOG IN  
THE MORNING. CHANCE OF RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE MORNING, THEN  
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
CWR.................27 PERCENT INCREASING TO 100 PERCENT EARLY IN  
THE MORNING.  
LAL.................1-8 STRIKES UNTIL 0700, THEN NO TSTMS UNTIL  
1200, THEN 1-8 STRIKES UNTIL 1400, THEN 9-15  
STRIKES UNTIL 1500, THEN 16-25 STRIKES UNTIL  
1600, THEN >25 STRIKES.  
MAX TEMPERATURE.....AROUND 69.  
MIN HUMIDITY........90 PERCENT.  
DEWPOINT............59 INCREASING TO 64 LATE IN THE MORNING.  
MAX APPARENT TEMP...68.  
WIND (20 FT)........SOUTH WINDS 5 TO 6 MPH WITH GUSTS TO AROUND 17  
MPH SHIFTING TO THE WEST AROUND 6 MPH WITH  
GUSTS TO AROUND 17 MPH LATE IN THE AFTERNOON.  
GUSTY AND ERRATIC WINDS EXPECTED NEAR  
THUNDERSTORMS EARLY IN THE MORNING. GUSTY AND  
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN  
THE AFTERNOON.  
MIXING HEIGHT.......3000 FT AGL.  
TRANSPORT WINDS.....SOUTH 6 TO 14 MPH SHIFTING TO THE SOUTHWEST 13  
TO 16 MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (1100 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (33400 KNOT-FT) IN THE  
AFTERNOON.  
LVORI...............5 IN THE MORNING AND EARLY AFTERNOON.  
ADI.................11 INCREASING TO 34.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
CEILING (KFT).......0.3 INCREASING TO 0.4 LATE IN THE MORNING, THEN  
INCREASING TO 0.7 LATE IN THE MORNING  
INCREASING TO 1.5 LATE IN THE MORNING  
INCREASING TO 2.0 INCREASING TO 2.9 EARLY IN  
THE AFTERNOON DECREASING TO 0.4 DECREASING TO  
0.2 LATE IN THE AFTERNOON.  
 
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM  
SKY (%).........80 80 80 79 79 79  
WEATHER COV.....CHANCE CHANCE AREAS CHANCE CHANCE DEFNTE  
WEATHER TYPE....RN/FG RN/FG FOG RNSHWR RNSHWR RNSHWR  
TSTM COV........ISOLTD ISOLTD NO CHANCE CHANCE DEFNTE  
CWR.............30 100 100 100 100 100  
LAL.............2 1 1 2 3 5  
TEMP............58 59 63 66 68 66  
DEWPOINT........57 59 61 64 66 63  
RH..............96 100 93 93 93 90  
APARNT TMP (F)..58 59 63 66 68 66  
20 FT WIND......S 6 S 6 S 6 S 6 S 6 W 6  
20 FT WIND GUST.12 10 12 13 14 17  
MIX HGT (FT)....200 300 500 1000 1800 2600  
TRANSPORT WIND..S 6 S 8 S 8 S 10 SW 16 SW 15  
LVORI...........6 5 5 4 M M  
ADI.............7 14 17 32 M M  
HAINES INDEX....3 3 3 3 3 3  
VRATE KT-FT/10001 2 3 9 25 33  
CEILING (KFT)...0.3 0.3 0.7 1.7 2.9 0.2  
 

 
FORECASTER...CASEY  
REQUESTED BY...DONALD TUCKER  
TYPE OF REQUEST...WILDFIRE  
.TAG 2118346.0/GYX  
.DELDT 09/14/21  
.FORMATTERVERSION 1.0.26  
.EMAIL NHNECC@FIRENET.GOV  
 
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