205
FNUS51 KCAR 171837
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE
NATIONAL WEATHER SERVICE CARIBOU ME
236 PM EDT SUN MAY 17 2026
DISCUSSION
REST OF TODAY EXPECTING CONTINUED GUSTY W-NW WINDS THROUGH SUNSET
WITH RHS IN THE 28-40 PERCENT RANGE. RHS RECOVER INTO THE 65-80
PERCENT RANGE TONIGHT WITH FROST DEVELOPING ACROSS THE NORTH
WOODS
AND PORTIONS OF EASTERN AROOSTOOK COUNTY. ON MONDAY, EXPECTING A
MUCH DRIER DAY, WITH AFTERNOON RELATIVE HUMIDITIES BETWEEN 24 TO
33 PERCENT. WINDS WILL BE LIGHTER ON MONDAY, INTIALLY LIGHT AND
VARIABLE BECOMING SW THEN S LATE DAY. ACROSS THE BANGOR REGION TO
DOWNEAST COAST AFTERNOON GUSTS WILL INCREASE UP TO AROUND 20 MPH.
A ROUND OF SHOWERS AND THUNDERSTORMS ON TUESDAY COULD BRING A
RETURN OF WETTING RAIN ACROSS THE FORECAST AREA TUESDAY
AFTERNOON.
MEZ101-180800-
QUEBEC-MAINE BORDERLANDS-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 0 10 50 70
CHANCE OF THUNDER (%) 0 9 23(LTD) 21(LTD)
TEMP (24H TREND) 33 (-18) 68 (+6) 49 76
RH % (24H TREND) 77 (-14) 26 (-13) 100 61
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR W 6
PRECIP AMOUNT 0.00 0.01 0.07 0.17
PRECIP DURATION 1 4 5
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 3240 3260
TRANSPORT WND (KTS) S 9 W 14
VENT RATE (KT-FT) 34050 67560
DISPERSION MARGINAL GOOD
CWR 0 30 80
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ102-180800-
NORTH WOODS AND ST. JOHN VALLEY-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE SHOWERS TSTMS TSTMS
CHANCE PRECIP (%) 0 0 40 70
CHANCE OF THUNDER (%) 0(NONE) 6 19(LTD) 21(LTD)
TEMP (24H TREND) 33 (-20) 68 (+2) 48 79
RH % (24H TREND) 75 (-14) 23 (-15) 96 55
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 5 G20 LGT/VAR LGT/VAR W 5
PRECIP AMOUNT 0.00 0.00 0.03 0.19
PRECIP DURATION 4 4
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 3430 3740
TRANSPORT WND (KTS) SW 9 W 15
VENT RATE (KT-FT) 37040 86480
DISPERSION FAIR VERY GOOD
CWR 0 10 90
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ103-180800-
EASTERN AROOSTOOK-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS TSTMS
CHANCE PRECIP (%) 0 0 20 70
CHANCE OF THUNDER (%) 0(NONE) 2 16(LTD) 22(LTD)
TEMP (24H TREND) 36 (-18) 67 (-2) 49 80
RH % (24H TREND) 69 (-8) 25 (-11) 84 53
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 7 G23 LGT/VAR S 6 G18 W 5
PRECIP AMOUNT 0.00 0.00 0.02 0.22
PRECIP DURATION 4 4
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 3530 2990
TRANSPORT WND (KTS) SW 8 W 12
VENT RATE (KT-FT) 37050 63940
DISPERSION FAIR GOOD
CWR 0 0 100
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ105-180800-
CENTRAL HIGHLANDS-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 20 10 70
CHANCE OF THUNDER (%) 0(NONE) 12 12 20(LTD)
TEMP (24H TREND) 37 (-17) 70 (+1) 47 84
RH % (24H TREND) 75 (-13) 28 (-13) 88 50
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 7 G23 S 5 G18 S 7 G18 W 7 G17
PRECIP AMOUNT 0.00 0.01 0.01 0.17
PRECIP DURATION 0 0 4
PRECIP BEGIN 2 PM CONTINUING 10 AM
PRECIP END CONTINUING 7 PM CONTINUING
MIXING HGT(FT-AGL/MSL) 3030 4170
TRANSPORT WND (KTS) S 11 W 17
VENT RATE (KT-FT) 45050 95580
DISPERSION FAIR VERY GOOD
CWR 0 10 10 90
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ106-180800-
CENTRAL MAINE NORTH OF BANGOR-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 20 10 70
CHANCE OF THUNDER (%) 0(NONE) 13 13 21(LTD)
TEMP (24H TREND) 39 (-16) 70 (-3) 49 86
RH % (24H TREND) 70 (-16) 24 (-13) 84 44
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 5 G21 LGT/VAR S 6 W 6
PRECIP AMOUNT 0.00 0.01 0.00 0.11
PRECIP DURATION 0 0 2
PRECIP BEGIN 4 PM CONTINUING 12 PM
PRECIP END CONTINUING 7 PM CONTINUING
MIXING HGT(FT-AGL/MSL) 3170 4810
TRANSPORT WND (KTS) SW 9 W 15
VENT RATE (KT-FT) 33420 87210
DISPERSION MARGINAL VERY GOOD
CWR 0 10 10 80
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ108-180800-
INTERIOR DOWNEAST-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 20 10 50
CHANCE OF THUNDER (%) 0(NONE) 10 10 16(LTD)
TEMP (24H TREND) 43 (-10) 71 (-5) 47 85
RH % (24H TREND) 69 (-27) 25 (-13) 89 45
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 5 G21 LGT/VAR LGT/VAR SW 6 G17
PRECIP AMOUNT 0.00 0.01 0.00 0.09
PRECIP DURATION 0 0 1
PRECIP BEGIN 4 PM CONTINUING 1 PM
PRECIP END CONTINUING 7 PM CONTINUING
MIXING HGT(FT-AGL/MSL) 3380 4870
TRANSPORT WND (KTS) SW 9 W 15
VENT RATE (KT-FT) 32450 84610
DISPERSION MARGINAL VERY GOOD
CWR 0 90
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ112-180800-
COASTAL DOWNEAST-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 20 0 30
CHANCE OF THUNDER (%) 0(NONE) 4 4 15(LTD)
TEMP (24H TREND) 44 (-6) 69 (-7) 46 81
RH % (24H TREND) 72 (-23) 28 (-12) 95 52
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR SW 6 LGT/VAR SW 6 G17
PRECIP AMOUNT 0.00 0.00 0.00 0.05
PRECIP DURATION 0 1
PRECIP BEGIN 5 PM 2 PM
PRECIP END 6 PM CONTINUING
MIXING HGT(FT-AGL/MSL) 3340 2540
TRANSPORT WND (KTS) W 7 SW 12
VENT RATE (KT-FT) 27770 54570
DISPERSION MARGINAL GOOD
CWR 0 0 30
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ113-180800-
BANGOR REGION-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
CHANCE OF THUNDER (%) 0(NONE) 6 6 21(LTD)
TEMP (24H TREND) 43 (-11) 71 (-6) 48 88
RH % (24H TREND) 72 (-17) 29 (-6) 87 42
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 8 G23 S 6 G17 S 6 G17 SW 7 G17
PRECIP AMOUNT 0.00 0.00 0.00 0.06
PRECIP DURATION 1
PRECIP BEGIN 1 PM
PRECIP END CONTINUING
MIXING HGT(FT-AGL/MSL) 3600 5090
TRANSPORT WND (KTS) SW 10 W 17
VENT RATE (KT-FT) 46880 95200
DISPERSION FAIR VERY GOOD
CWR 0 0 0 60
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ114-180800-
EASTERN PENOBSCOT BAY COAST-
236 PM EDT SUN MAY 17 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 20
CHANCE OF THUNDER (%) 0(NONE) 3 4 20(LTD)
TEMP (24H TREND) 45 (-6) 70 (-8) 46 85
RH % (24H TREND) 75 (-17) 30 (-8) 94 47
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) NW 6 G21 SW 6 G17 LGT/VAR SW 7 G19
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(FT-AGL/MSL) 3310 3220
TRANSPORT WND (KTS) SW 6 W 13
VENT RATE (KT-FT) 23200 66530
DISPERSION MARGINAL GOOD
CWR 0 0 0
KBDI <200 <200 <200 <200
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS AROUND
60. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. WEST WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 40S.
NORTHWEST WINDS AROUND 15 MPH.
THURSDAY
SUNNY, COOLER. HIGHS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
CLEAR. LOWS IN THE UPPER 30S. NORTHWEST WINDS
AROUND 10 MPH.
FRIDAY
SUNNY. HIGHS IN THE LOWER 60S. WEST WINDS AROUND
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTHEAST WINDS
AROUND 5 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION NEAR NORMAL.
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