264
FNUS51 KCAR 181226
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE
NATIONAL WEATHER SERVICE CARIBOU ME
826 AM EDT TUE AUG 18 2026
DISCUSSION
TODAY WILL FEATURE SIGNIFICANT CLOUD COVER, LIGHT AND VARIABLE
WINDS AND ELEVATED RHS IN THE 60-80% RANGE. ISOLATED TO SCATTERED
SHOWERS EXPECTED TODAY MOSTLY OVER THE CENTRAL HIGHLANDS AND
ALONG
THE MAINE/NEW BRUNSWICK BORDER IN EASTERN ZONES. A FEW
THUNDERSTORMS ARE POSSIBLE MAINLY IN THE CENTRAL HIGHLANDS. NEAR
100% RH TUESDAY NIGHT WITH FOG EXPECTED. WEDNESDAY, EXPECTING
MINIMUM RHS TO DIP DOWN INTO THE 50-60% RANGE WITH SW WINDS
5-10MPH AND TEMPERATURES IN THE UPPER 70S TO LOW 80S. ISOLATED TO
SCATTERED SHOWERS AND A FEW THUNDERSTORMS EXPECTED FROM THE
CENTRAL HIGHLANDS NORTHWARD.
MEZ101-182015-
QUEBEC-MAINE BORDERLANDS-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 30
CHANCE OF THUNDER (%) 10 7 23(LTD)
TEMP (24H TREND) 77 (+5) 53 (-3) 76
RH % (24H TREND) 54 (-19) 100 (+1) 53
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.00 0.00 0.01
PRECIP DURATION 2
PRECIP BEGIN 2 PM
PRECIP END CONTINUING
MIXING HGT(FT-AGL/MSL)5060 5130
TRANSPORT WND (KTS) SW 3 SW 11
VENT RATE (KT-FT) 22480 63460
DISPERSION MARGINAL GOOD
CWR 0 0
KBDI <200 <200 <200
REMARKS...LOW.
MEZ102-182015-
NORTH WOODS AND ST. JOHN VALLEY-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 10 10 20
CHANCE OF THUNDER (%) 17(LTD) 13 18(LTD)
TEMP (24H TREND) 77 (+5) 53 (-6) 77
RH % (24H TREND) 60 (-18) 100 (+2) 53
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.01 0.01 0.00
PRECIP DURATION 0 0 0
PRECIP BEGIN 2 PM CONTINUING 2 PM
PRECIP END CONTINUING 9 PM CONTINUING
MIXING HGT(FT-AGL/MSL)4510 5770
TRANSPORT WND (KTS) SE 4 SW 11
VENT RATE (KT-FT) 21240 69710
DISPERSION MARGINAL GOOD
CWR
KBDI <200 <200 <200
REMARKS...LOW.
MEZ103-182015-
EASTERN AROOSTOOK-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 20 20 10
CHANCE OF THUNDER (%) 23(LTD) 14 16(LTD)
TEMP (24H TREND) 75 (+6) 55 (-7) 78
RH % (24H TREND) 67 (-16) 100 (+3) 53
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.05 0.03 0.00
PRECIP DURATION 1 1 0
PRECIP BEGIN 11 AM CONTINUING 5 PM
PRECIP END CONTINUING 1 AM CONTINUING
MIXING HGT(FT-AGL/MSL)3620 5880
TRANSPORT WND (KTS) E 4 SW 10
VENT RATE (KT-FT) 20470 81480
DISPERSION MARGINAL VERY GOOD
CWR 20 20
KBDI 201-300 201-300 201-300
REMARKS...LOW.
MEZ105-182015-
CENTRAL HIGHLANDS-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 30 20 10
CHANCE OF THUNDER (%) 25(ELEV) 18(LTD) 15(LTD)
TEMP (24H TREND) 75 (+7) 56 (-5) 79
RH % (24H TREND) 70 (-20) 100 (0) 51
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.06 0.02 0.00
PRECIP DURATION 2 1 0
PRECIP BEGIN 6 AM CONTINUING 5 PM
PRECIP END CONTINUING 1 AM CONTINUING
MIXING HGT(FT-AGL/MSL)3100 5550
TRANSPORT WND (KTS) NE 4 SW 10
VENT RATE (KT-FT) 16700 68740
DISPERSION POOR GOOD
CWR 20 20
KBDI 201-300 201-300 201-300
REMARKS...LOW.
MEZ106-182015-
CENTRAL MAINE NORTH OF BANGOR-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 20 20 10
CHANCE OF THUNDER (%) 24(LTD) 17(LTD) 10
TEMP (24H TREND) 76 (+8) 58 (-4) 80
RH % (24H TREND) 75 (-11) 100 (+1) 51
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR
PRECIP AMOUNT 0.09 0.02 0.00
PRECIP DURATION 1 1 0
PRECIP BEGIN 6 AM CONTINUING 3 PM
PRECIP END CONTINUING 11 PM CONTINUING
MIXING HGT(FT-AGL/MSL)2870 5360
TRANSPORT WND (KTS) NE 5 SW 11
VENT RATE (KT-FT) 20310 74960
DISPERSION MARGINAL GOOD
CWR 30 20
KBDI 301-400 301-400 301-400
REMARKS...LOW.
MEZ108-182015-
INTERIOR DOWNEAST-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS NONE
CHANCE PRECIP (%) 20 20 0
CHANCE OF THUNDER (%) 16(LTD) 13 6
TEMP (24H TREND) 78 (+10) 59 (-3) 80
RH % (24H TREND) 76 (-6) 100 (0) 58
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.02 0.01 0.00
PRECIP DURATION 0 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 11 PM
MIXING HGT(FT-AGL/MSL)2890 5510
TRANSPORT WND (KTS) NE 7 SW 11
VENT RATE (KT-FT) 22610 72050
DISPERSION MARGINAL GOOD
CWR 10 10 0
KBDI 301-400 301-400 301-400
REMARKS...LOW.
MEZ112-182015-
COASTAL DOWNEAST-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS NONE
CHANCE PRECIP (%) 20 20 0
CHANCE OF THUNDER (%) 14 10 4
TEMP (24H TREND) 77 (+10) 57 (-4) 81
RH % (24H TREND) 71 (-10) 100 (0) 62
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.03 0.01 0.00
PRECIP DURATION 1 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 1 AM
MIXING HGT(FT-AGL/MSL)2170 3380
TRANSPORT WND (KTS) NE 8 SW 11
VENT RATE (KT-FT) 21270 50570
DISPERSION MARGINAL GOOD
CWR 20 20 0
KBDI 301-400 301-400 301-400
REMARKS...LOW.
MEZ113-182015-
BANGOR REGION-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 20 10 10
CHANCE OF THUNDER (%) 20(LTD) 16(LTD) 9
TEMP (24H TREND) 77 (+8) 59 (-4) 81
RH % (24H TREND) 77 (-6) 100 (+2) 54
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 5
PRECIP AMOUNT 0.05 0.00 0.00
PRECIP DURATION 1 0 0
PRECIP BEGIN 6 AM CONTINUING 3 PM
PRECIP END CONTINUING 9 PM 4 PM
MIXING HGT(FT-AGL/MSL)3330 5470
TRANSPORT WND (KTS) NE 6 SW 11
VENT RATE (KT-FT) 21250 72420
DISPERSION MARGINAL GOOD
CWR 10 10
KBDI 401-500 401-500 401-500
REMARKS...LOW.
MEZ114-182015-
EASTERN PENOBSCOT BAY COAST-
826 AM EDT TUE AUG 18 2026
TODAY TONIGHT WED
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE DRIZZLE NONE NONE
CHANCE PRECIP (%) 10 0 0
CHANCE OF THUNDER (%) 10 10 4
TEMP (24H TREND) 80 (+12) 60 (-2) 83
RH % (24H TREND) 67 (-16) 100 (+1) 60
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR SW 6
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION 0
PRECIP BEGIN 6 AM
PRECIP END 8 AM
MIXING HGT(FT-AGL/MSL)3260 4290
TRANSPORT WND (KTS) NE 6 SW 10
VENT RATE (KT-FT) 23160 52100
DISPERSION MARGINAL GOOD
CWR 0 0
KBDI 401-500 401-500 401-500
REMARKS...LOW.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG. LOWS IN THE MID
50S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. WEST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 50S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE LOWER
70S. EAST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. LOWS IN THE
MID 50S. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH SHOWERS LIKELY. HIGHS IN THE LOWER
70S. SOUTHWEST WINDS AROUND 10 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES NEAR NORMAL. PRECIPITATION ABOVE NORMAL.
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