339
FNUS51 KCAR 171912
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE
NATIONAL WEATHER SERVICE CARIBOU ME
312 PM EDT THU SEP 17 2026
DISCUSSION
NEXT CHANCE OF RAIN TONIGHT, PARTICULARLY ACROSS THE DOWNEAST COAST
WITH ANOTHER CHANCE OF RAIN LATE THIS WEEKEND. WINDS WILL BE LIGHT
AND VARIABLE TONIGHT. GUSTY NORTHWEST WINDS UP TO 35 MPH ON
FRIDAY WITH RH VALUES BETWEEN 35 AND 45 PERCENT. WINDS 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 SUNDAY AND INTO MONDAY.
MEZ101-180815-
QUEBEC-MAINE BORDERLANDS-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 10 0 0 0
CHANCE OF THUNDER (%) 3 2 0 0
TEMP (24H TREND) 43 (-3) 60 (-7) 33 57
RH % (24H TREND) 100 (+2) 36 (-22) 99 35
20FTWND-VAL/AM(MPH) W 7 G23 LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR NW 11 G25 NW 7 G23 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 6 PM
PRECIP END 7 PM
MIXING HGT(FT-AGL/MSL) 5060 4870
TRANSPORT WND (KTS) NW 22 NW 10
VENT RATE (KT-FT) 121690 51640
DISPERSION VERY GOOD GOOD
CWR 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ102-180815-
NORTH WOODS AND ST. JOHN VALLEY-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 10 0 0 0
CHANCE OF THUNDER (%) 5 2 0 0
TEMP (24H TREND) 45 (-1) 62 (-5) 33 58
RH % (24H TREND) 100 (+2) 37 (-21) 97 36
20FTWND-VAL/AM(MPH) W 7 G26 NW 5 G18
20FTWND-RDG/PM(MPH) LGT/VAR NW 12 G31 NW 9 G28 LGT/VAR
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 6 PM
PRECIP END 12 AM
MIXING HGT(FT-AGL/MSL) 5310 5140
TRANSPORT WND (KTS) NW 23 NW 10
VENT RATE (KT-FT) 134380 68820
DISPERSION EXCELLENT GOOD
CWR 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ103-180815-
EASTERN AROOSTOOK-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 40 0 0 0
CHANCE OF THUNDER (%) 10 2 0 0
TEMP (24H TREND) 48 (+1) 65 (-2) 33 59
RH % (24H TREND) 100 (+3) 36 (-20) 97 38
20FTWND-VAL/AM(MPH) W 8 G27 NW 9 G23
20FTWND-RDG/PM(MPH) LGT/VAR NW 15 G31 NW 12 G30 NW 7 G20
PRECIP AMOUNT 0.04 0.00 0.00 0.00
PRECIP DURATION 4
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT(FT-AGL/MSL) 5890 5420
TRANSPORT WND (KTS) NW 24 NW 12
VENT RATE (KT-FT) 149470 77220
DISPERSION EXCELLENT GOOD
CWR 20 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ105-180815-
CENTRAL HIGHLANDS-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 30 0 0 0
CHANCE OF THUNDER (%) 7 0(NONE) 0 0
TEMP (24H TREND) 51 (-1) 66 (-1) 37 61
RH % (24H TREND) 100 (+2) 37 (-28) 89 37
20FTWND-VAL/AM(MPH) NW 8 G25 NW 6 G18
20FTWND-RDG/PM(MPH) LGT/VAR NW 12 G26 NW 11 G26 LGT/VAR
PRECIP AMOUNT 0.04 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 5 AM
MIXING HGT(FT-AGL/MSL) 5630 5310
TRANSPORT WND (KTS) NW 24 NW 10
VENT RATE (KT-FT) 146830 62830
DISPERSION EXCELLENT GOOD
CWR 20 0 0 0
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
MEZ106-180815-
CENTRAL MAINE NORTH OF BANGOR-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 50 30 0 0
CHANCE OF THUNDER (%) 11 2 0 0
TEMP (24H TREND) 54 (+1) 70 (0) 36 61
RH % (24H TREND) 100 (+2) 36 (-27) 93 38
20FTWND-VAL/AM(MPH) NW 5 G22 NW 5
20FTWND-RDG/PM(MPH) LGT/VAR NW 11 G23 NW 9 G23 LGT/VAR
PRECIP AMOUNT 0.08 0.00 0.00 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT(FT-AGL/MSL) 6350 5720
TRANSPORT WND (KTS) NW 22 NW 10
VENT RATE (KT-FT) 157200 69720
DISPERSION EXCELLENT GOOD
CWR 40 10 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ108-180815-
INTERIOR DOWNEAST-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR CLEAR CLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 80 30 0 0
CHANCE OF THUNDER (%) 11 3 0 0
TEMP (24H TREND) 55 (+1) 72 (+2) 41 62
RH % (24H TREND) 100 (0) 44 (-30) 84 44
20FTWND-VAL/AM(MPH) NW 5 G21 NW 6
20FTWND-RDG/PM(MPH) LGT/VAR NW 11 G24 NW 8 G23 NW 5
PRECIP AMOUNT 0.26 0.05 0.00 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 8 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT(FT-AGL/MSL) 6450 5700
TRANSPORT WND (KTS) NW 22 NW 10
VENT RATE (KT-FT) 148880 66000
DISPERSION EXCELLENT GOOD
CWR 90 90 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ112-180815-
COASTAL DOWNEAST-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 80 30 0 0
CHANCE OF THUNDER (%) 11 4 0 0
TEMP (24H TREND) 54 (0) 74 (+7) 42 63
RH % (24H TREND) 100 (0) 40 (-37) 82 43
20FTWND-VAL/AM(MPH) NW 5 G19 NW 6
20FTWND-RDG/PM(MPH) LGT/VAR NW 10 G23 NW 7 G22 LGT/VAR
PRECIP AMOUNT 0.43 0.09 0.00 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT(FT-AGL/MSL) 5930 5560
TRANSPORT WND (KTS) NW 19 NW 9
VENT RATE (KT-FT) 144670 66120
DISPERSION EXCELLENT GOOD
CWR 100 100 0 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ113-180815-
BANGOR REGION-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 70 20 0 0
CHANCE OF THUNDER (%) 11 1 0 0
TEMP (24H TREND) 56 (+2) 72 (0) 39 63
RH % (24H TREND) 100 (+1) 39 (-30) 88 40
20FTWND-VAL/AM(MPH) NW 7 G22 NW 5
20FTWND-RDG/PM(MPH) LGT/VAR NW 14 G26 NW 11 G24 LGT/VAR
PRECIP AMOUNT 0.14 0.01 0.00 0.00
PRECIP DURATION 4 0
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT(FT-AGL/MSL) 6260 5670
TRANSPORT WND (KTS) NW 22 NW 9
VENT RATE (KT-FT) 148830 56430
DISPERSION EXCELLENT GOOD
CWR 60 10 0 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
MEZ114-180815-
EASTERN PENOBSCOT BAY COAST-
312 PM EDT THU SEP 17 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE NONE
CHANCE PRECIP (%) 80 10 0 0
CHANCE OF THUNDER (%) 13 1 0 0
TEMP (24H TREND) 57 (+2) 76 (+7) 43 65
RH % (24H TREND) 100 (0) 39 (-39) 80 42
20FTWND-VAL/AM(MPH) NW 7 G22 NW 6 G17
20FTWND-RDG/PM(MPH) LGT/VAR NW 12 G25 NW 10 G24 LGT/VAR
PRECIP AMOUNT 0.45 0.07 0.00 0.00
PRECIP DURATION 7 0
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT(FT-AGL/MSL) 6470 5620
TRANSPORT WND (KTS) NW 21 NW 9
VENT RATE (KT-FT) 148810 56710
DISPERSION EXCELLENT GOOD
CWR 100 100 0 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. EAST
WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. PATCHY FOG. LOWS AROUND 40.
SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. PATCHY FOG. HIGHS AROUND 60. NORTHWEST
WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE MID 60S. WEST WINDS AROUND 5 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES NEAR NORMAL. PRECIPITATION NEAR NORMAL.
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