597
FNUS51 KCAR 170643
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE
NATIONAL WEATHER SERVICE CARIBOU ME
243 AM EDT THU SEP 17 2026
DISCUSSION
MIN RHS IN THE 50-60 PERCENT RANGE ON THURSDAY, WITH HIGHER
VALUES ALONG THE DOWNEAST COAST. NEXT CHANCE OF RAIN ON THURSDAY
NIGHT, PARTICULARLY ACROSS THE DOWNEAST WITH ANOTHER CHANCE OF
RAIN LATE THIS WEEKEND. WINDS WILL BE LIGHT AND VARIABLE ON
THURSDAY. GUSTY NORTHWEST WINDS ON FRIDAY ARE EXPECTED TO SLOWLY
DIMINISH THROUGH THE WEEKEND. MIN RHS BETWEEN 35 AND 45 PERCENT
ARE EXPECTED ON SATURDAY, RAISING BACK INTO THE 45 TO 60
PERCENTILE ON SUNDAY AND INTO MONDAY.
MEZ101-172000-
QUEBEC-MAINE BORDERLANDS-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE RAIN NONE SHOWERS
CHANCE PRECIP (%) 20 0 20
CHANCE OF THUNDER (%) 2 3 4
TEMP (24H TREND) 67 (-2) 46 (-2) 60
RH % (24H TREND) 51 (-14) 99 (+1) 36
20FTWND-VAL/AM(MPH) LGT/VAR W 6 G21
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 10 G24
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0 1
PRECIP BEGIN 3 PM 9 AM
PRECIP END 6 PM 1 PM
MIXING HGT(FT-AGL/MSL)3660 5780
TRANSPORT WND (KTS) SW 7 NW 20
VENT RATE (KT-FT) 38330 130590
DISPERSION FAIR EXCELLENT
CWR 0
KBDI 201-300 201-300 201-300
REMARKS...NONE.
MEZ102-172000-
NORTH WOODS AND ST. JOHN VALLEY-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR
PRECIP TYPE RAIN RAIN SHOWERS
CHANCE PRECIP (%) 20 10 20
CHANCE OF THUNDER (%) 1 4 3
TEMP (24H TREND) 67 (-3) 46 (-3) 62
RH % (24H TREND) 51 (-12) 99 (+1) 37
20FTWND-VAL/AM(MPH) LGT/VAR W 6 G24
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 11 G28
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0 0 0
PRECIP BEGIN 3 PM CONTINUING 9 AM
PRECIP END CONTINUING 11 PM 1 PM
MIXING HGT(FT-AGL/MSL)3460 6010
TRANSPORT WND (KTS) S 7 NW 21
VENT RATE (KT-FT) 36960 148510
DISPERSION FAIR EXCELLENT
CWR
KBDI 201-300 201-300 201-300
REMARKS...NONE.
MEZ103-172000-
EASTERN AROOSTOOK-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN SHOWERS
CHANCE PRECIP (%) 20 20 20
CHANCE OF THUNDER (%) 0(NONE) 6 4
TEMP (24H TREND) 68 (-3) 50 (+2) 64
RH % (24H TREND) 51 (-9) 98 (+1) 39
20FTWND-VAL/AM(MPH) LGT/VAR W 6 G27
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 13 G31
PRECIP AMOUNT 0.00 0.03 0.00
PRECIP DURATION 0 1 1
PRECIP BEGIN 4 PM CONTINUING 9 AM
PRECIP END CONTINUING 2 AM 2 PM
MIXING HGT(FT-AGL/MSL)3250 6800
TRANSPORT WND (KTS) SW 5 NW 22
VENT RATE (KT-FT) 22980 154150
DISPERSION MARGINAL EXCELLENT
CWR 20
KBDI 301-400 301-400 301-400
REMARKS...NONE.
MEZ105-172000-
CENTRAL HIGHLANDS-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 20 0
CHANCE OF THUNDER (%) 2 6 0(NONE)
TEMP (24H TREND) 68 (-3) 51 (-2) 66
RH % (24H TREND) 57 (-5) 100 (+2) 37
20FTWND-VAL/AM(MPH) LGT/VAR NW 7 G24
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 12 G27
PRECIP AMOUNT 0.01 0.02 0.00
PRECIP DURATION 0 1
PRECIP BEGIN 2 PM CONTINUING
PRECIP END CONTINUING 2 AM
MIXING HGT(FT-AGL/MSL)3110 6620
TRANSPORT WND (KTS) S 8 NW 22
VENT RATE (KT-FT) 37550 157460
DISPERSION FAIR EXCELLENT
CWR 10 10 0
KBDI 201-300 201-300 201-300
REMARKS...NONE.
MEZ106-172000-
CENTRAL MAINE NORTH OF BANGOR-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN RAIN SHOWERS
CHANCE PRECIP (%) 20 50 10
CHANCE OF THUNDER (%) 1 8 1
TEMP (24H TREND) 71 (0) 54 (+2) 69
RH % (24H TREND) 54 (-7) 100 (+2) 37
20FTWND-VAL/AM(MPH) LGT/VAR NW 5 G21
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 10 G25
PRECIP AMOUNT 0.01 0.07 0.01
PRECIP DURATION 0 2 0
PRECIP BEGIN 3 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 8 AM
MIXING HGT(FT-AGL/MSL)3310 7200
TRANSPORT WND (KTS) S 6 NW 20
VENT RATE (KT-FT) 27110 159410
DISPERSION MARGINAL EXCELLENT
CWR 30
KBDI 301-400 301-400 301-400
REMARKS...NONE.
MEZ108-172000-
INTERIOR DOWNEAST-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN SHOWERS
CHANCE PRECIP (%) 10 80 20
CHANCE OF THUNDER (%) 0(NONE) 9 3
TEMP (24H TREND) 71 (0) 55 (+3) 70
RH % (24H TREND) 69 (+1) 100 (0) 42
20FTWND-VAL/AM(MPH) LGT/VAR NW 5 G21
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 10 G25
PRECIP AMOUNT 0.00 0.21 0.04
PRECIP DURATION 0 5 0
PRECIP BEGIN 5 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING 9 AM
MIXING HGT(FT-AGL/MSL)2690 7140
TRANSPORT WND (KTS) S 7 NW 20
VENT RATE (KT-FT) 25650 154750
DISPERSION MARGINAL EXCELLENT
CWR 80
KBDI 301-400 301-400 301-400
REMARKS...NONE.
MEZ112-172000-
COASTAL DOWNEAST-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE NONE RAIN SHOWERS
CHANCE PRECIP (%) 0 90 30
CHANCE OF THUNDER (%) 0(NONE) 10 4
TEMP (24H TREND) 69 (+1) 55 (+3) 72
RH % (24H TREND) 74 (-1) 100 (0) 42
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 9 G24
PRECIP AMOUNT 0.00 0.34 0.07
PRECIP DURATION 6 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT(FT-AGL/MSL)1830 7240
TRANSPORT WND (KTS) SE 5 NW 17
VENT RATE (KT-FT) 11140 157600
DISPERSION POOR EXCELLENT
CWR 0 100
KBDI 301-400 301-400 301-400
REMARKS...NONE.
MEZ113-172000-
BANGOR REGION-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 60 0
CHANCE OF THUNDER (%) 2 7 0(NONE)
TEMP (24H TREND) 72 (-1) 56 (+3) 70
RH % (24H TREND) 64 (+1) 100 (+1) 37
20FTWND-VAL/AM(MPH) LGT/VAR NW 7 G23
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 13 G28
PRECIP AMOUNT 0.01 0.14 0.00
PRECIP DURATION 0 4
PRECIP BEGIN 2 PM CONTINUING
PRECIP END CONTINUING 5 AM
MIXING HGT(FT-AGL/MSL)3070 6750
TRANSPORT WND (KTS) S 8 NW 23
VENT RATE (KT-FT) 26510 168980
DISPERSION MARGINAL EXCELLENT
CWR 10 80 0
KBDI 501-600 501-600 501-600
REMARKS...NONE.
MEZ114-172000-
EASTERN PENOBSCOT BAY COAST-
243 AM EDT THU SEP 17 2026
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN RAIN NONE
CHANCE PRECIP (%) 20 90 0
CHANCE OF THUNDER (%) 0(NONE) 9 1
TEMP (24H TREND) 71 (+3) 56 (+3) 72
RH % (24H TREND) 73 (-3) 100 (0) 39
20FTWND-VAL/AM(MPH) LGT/VAR NW 6 G21
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR NW 11 G25
PRECIP AMOUNT 0.01 0.38 0.00
PRECIP DURATION 0 7
PRECIP BEGIN 4 PM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(FT-AGL/MSL)2160 7140
TRANSPORT WND (KTS) SE 6 NW 20
VENT RATE (KT-FT) 17640 160560
DISPERSION POOR EXCELLENT
CWR 100 0
KBDI 501-600 501-600 501-600
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE LOWER 40S. NORTHWEST WINDS
AROUND 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 50S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. EAST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
IN THE UPPER 30S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 60. NORTHWEST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS AROUND 60. NORTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS AROUND
5 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION ABOVE NORMAL.
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