617
FNUS51 KCAR 201844
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE
NATIONAL WEATHER SERVICE CARIBOU ME
243 PM EDT SUN SEP 20 2026
DISCUSSION
SOUTHERLY WINDS TODAY CONTINUE TO INCREASE RELATIVE HUMIDITIES. A
CHANCE FOR SHOWERS OVER MOST OF THE AREA THIS EVENING INTO
TONIGHT.
BRIEF NORTHWEST WIND GUSTS UP TO 20 KTS ARE EXPECTED AREA WIDE
MONDAY AFTERNOON BEHIND A COLD FRONT. MIN RHS IN THE 50 TO 60
PERCENT RANGE ON MONDAY. OTHERWISE, MIN RHS RETURN TO THE 40 TO
50 PERCENT THROUGH MIDWEEK, WITH ANOTHER CHANCE OF RAIN LATE WEEK
INTO THE WEEKEND, MAINLY OVER DOWNEAST.
MEZ101-210800-
QUEBEC-MAINE BORDERLANDS-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN RAIN NONE NONE
CHANCE PRECIP (%) 30 0 0 0
CHANCE OF THUNDER (%) 7 3 0 0
TEMP (24H TREND) 39 (+5) 54 (-4) 32 60
RH % (24H TREND) 100 (+6) 48 (-10) 99 44
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR N 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(FT-AGL/MSL) 4930 5660
TRANSPORT WND (KTS) N 14 NE 10
VENT RATE (KT-FT) 77660 58130
DISPERSION GOOD GOOD
CWR 10 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ102-210800-
NORTH WOODS AND ST. JOHN VALLEY-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN RAIN NONE NONE
CHANCE PRECIP (%) 40 20 0 0
CHANCE OF THUNDER (%) 8 3 0 0
TEMP (24H TREND) 39 (+5) 55 (-3) 33 61
RH % (24H TREND) 100 (+8) 51 (-8) 99 46
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR NW 6 G17 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT(FT-AGL/MSL) 4880 5690
TRANSPORT WND (KTS) N 16 N 10
VENT RATE (KT-FT) 83060 64080
DISPERSION VERY GOOD GOOD
CWR 10 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ103-210800-
EASTERN AROOSTOOK-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN RAIN NONE NONE
CHANCE PRECIP (%) 30 20 0 0
CHANCE OF THUNDER (%) 4 2 0 0
TEMP (24H TREND) 42 (+7) 56 (-2) 34 60
RH % (24H TREND) 100 (+6) 55 (-4) 95 47
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) S 5 G17 NW 8 G20 LGT/VAR N 6
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT(FT-AGL/MSL) 4940 5580
TRANSPORT WND (KTS) N 17 N 11
VENT RATE (KT-FT) 88290 64020
DISPERSION VERY GOOD GOOD
CWR 10 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ105-210800-
CENTRAL HIGHLANDS-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 30 0 0 0
CHANCE OF THUNDER (%) 2 2 0 0
TEMP (24H TREND) 43 (+3) 59 (+3) 37 62
RH % (24H TREND) 100 (+6) 52 (-13) 91 44
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR N 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 12 AM
MIXING HGT(FT-AGL/MSL) 5060 5530
TRANSPORT WND (KTS) N 15 NE 10
VENT RATE (KT-FT) 80640 63780
DISPERSION VERY GOOD GOOD
CWR 10 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ106-210800-
CENTRAL MAINE NORTH OF BANGOR-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 20 0 0 0
CHANCE OF THUNDER (%) 2 0 0 0
TEMP (24H TREND) 43 (+4) 62 (+3) 38 63
RH % (24H TREND) 100 (+1) 55 (-5) 90 45
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR N 6 LGT/VAR N 5
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 12 AM
MIXING HGT(FT-AGL/MSL) 5390 5530
TRANSPORT WND (KTS) N 15 NE 11
VENT RATE (KT-FT) 85530 66960
DISPERSION VERY GOOD GOOD
CWR 10 0 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ108-210800-
INTERIOR DOWNEAST-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 20 0 0 0
CHANCE OF THUNDER (%) 1 0 0 0
TEMP (24H TREND) 47 (+7) 64 (+5) 42 63
RH % (24H TREND) 100 (+4) 61 (-5) 86 49
20FTWND-VAL/AM(MPH) LGT/VAR N 5
20FTWND-RDG/PM(MPH) LGT/VAR N 6 LGT/VAR NE 5
PRECIP AMOUNT 0.03 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT(FT-AGL/MSL) 5200 5550
TRANSPORT WND (KTS) N 14 NE 10
VENT RATE (KT-FT) 75320 63370
DISPERSION GOOD GOOD
CWR 20 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ112-210800-
COASTAL DOWNEAST-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 40 0 0 0
CHANCE OF THUNDER (%) 1 0(NONE) 0 0
TEMP (24H TREND) 49 (+7) 65 (+7) 43 63
RH % (24H TREND) 100 (+5) 59 (-12) 84 48
20FTWND-VAL/AM(MPH) LGT/VAR N 5
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.03 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT(FT-AGL/MSL) 5020 5190
TRANSPORT WND (KTS) N 11 NE 9
VENT RATE (KT-FT) 73490 60320
DISPERSION GOOD GOOD
CWR 10 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ113-210800-
BANGOR REGION-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 30 0 0 0
CHANCE OF THUNDER (%) 1 0 0 0
TEMP (24H TREND) 46 (+4) 64 (+5) 41 64
RH % (24H TREND) 100 (+3) 56 (-11) 86 51
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR N 7 N 5 NE 6
PRECIP AMOUNT 0.03 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 2 AM
MIXING HGT(FT-AGL/MSL) 5620 5530
TRANSPORT WND (KTS) N 14 NE 11
VENT RATE (KT-FT) 80090 67150
DISPERSION VERY GOOD GOOD
CWR 10 0 0 0
KBDI 401-500 401-500 401-500 401-500
REMARKS...NONE.
MEZ114-210800-
EASTERN PENOBSCOT BAY COAST-
243 PM EDT SUN SEP 20 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE RAIN NONE NONE NONE
CHANCE PRECIP (%) 50 0 0 0
CHANCE OF THUNDER (%) 1 0(NONE) 0 0
TEMP (24H TREND) 48 (+5) 66 (+7) 43 64
RH % (24H TREND) 100 (+4) 56 (-12) 82 50
20FTWND-VAL/AM(MPH) LGT/VAR N 6
20FTWND-RDG/PM(MPH) LGT/VAR N 6 N 5 NE 6
PRECIP AMOUNT 0.05 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 3 AM
MIXING HGT(FT-AGL/MSL) 5590 5520
TRANSPORT WND (KTS) N 13 NE 10
VENT RATE (KT-FT) 78270 65270
DISPERSION GOOD GOOD
CWR 20 0 0 0
KBDI 401-500 401-500 401-500 401-500
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHEAST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTH
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. NORTH
WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS
AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. NORTH WINDS
AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTH WINDS
AROUND 15 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTH WINDS
AROUND 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS
AROUND 10 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION NEAR NORMAL.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page