640
FNUS51 KCAR 191901 AAC
FWFCAR
FIRE WEATHER PLANNING FORECAST FOR NORTHERN AND EASTERN MAINE...UPDATED
NATIONAL WEATHER SERVICE CARIBOU ME
301 PM EDT THU MAR 19 2026
DISCUSSION
LIGHT WINDS ARE EXPECTED TONIGHT INTO FRIDAY WITH THE LOWEST
MINIMUM DAYTIME RELATIVE HUMIDITIES OF 35 TO 45 PERCENT ACROSS THE
PENOBSCOT VALLEY. ISOLATED TO SCATTERED SNOW SHOWERS ARE EXPECTED
TONIGHT. MORE WIDESPREAD PRECIPITATION IS LIKELY FRIDAY NIGHT
INTO SATURDAY WITH HIGHER MINIMUM RELATIVE HUMIDITY IN EXCESS OF
50 PERCENT THIS WEEKEND. A LIGHT SNOW ACCUMULATION IS LIKELY FOR
MUCH OF THE FORECAST AREA. MORE ACCUMULATING SNOW IS POSSIBLE
OVER MUCH OF THE AREA EARLY NEXT WEEK. NEAR NORMAL TEMPERATURES
ARE EXPECTED THROUGH THE WEEKEND WITH BELOW NORMAL TEMPERATURES
EARLY NEXT WEEK.
MEZ101-200830-
QUEBEC-MAINE BORDERLANDS-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SNOW SNOW
CHANCE PRECIP (%) 40 40 70 40
CHANCE OF THUNDER (%) 2 2 2 4
TEMP (24H TREND) 19 (+12) 31 (-1) 18 38
RH % (24H TREND) 99 (+29) 49 (+1) 95 54
20FTWND-VAL/AM(MPH) W 5 LGT/VAR
20FTWND-RDG/PM(MPH) S 5 LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.04 0.03 0.04 0.01
PRECIP DURATION 3 1 5 2
PRECIP BEGIN 7 PM CONTINUING CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 4050 4470
TRANSPORT WND (KTS) SW 8 NW 7
VENT RATE (KT-FT) 47220 84140
DISPERSION FAIR VERY GOOD
CWR 20 20 20 10
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ102-200830-
NORTH WOODS AND ST. JOHN VALLEY-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SNOW SNOW
CHANCE PRECIP (%) 30 30 70 50
CHANCE OF THUNDER (%) 1 2 2 4
TEMP (24H TREND) 19 (+10) 34 (+1) 19 39
RH % (24H TREND) 96 (+26) 46 (+1) 95 54
20FTWND-VAL/AM(MPH) W 5 N 5
20FTWND-RDG/PM(MPH) S 5 LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.02 0.03 0.06 0.02
PRECIP DURATION 2 1 7 2
PRECIP BEGIN 9 PM CONTINUING CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 4410 4810
TRANSPORT WND (KTS) W 10 NW 9
VENT RATE (KT-FT) 56270 101120
DISPERSION GOOD VERY GOOD
CWR 10 10 10 10
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ103-200830-
EASTERN AROOSTOOK-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW SHOWERS SNOW SNOW SNOW
CHANCE PRECIP (%) 40 20 80 60
CHANCE OF THUNDER (%) 1 1 1 2
TEMP (24H TREND) 19 (+9) 37 (+3) 22 40
RH % (24H TREND) 95 (+26) 45 (+3) 95 55
20FTWND-VAL/AM(MPH) SW 5 N 5
20FTWND-RDG/PM(MPH) S 6 LGT/VAR LGT/VAR NW 7 G17
PRECIP AMOUNT 0.02 0.02 0.07 0.03
PRECIP DURATION 2 0 9 3
PRECIP BEGIN 12 AM CONTINUING CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 4670 5010
TRANSPORT WND (KTS) W 11 N 9
VENT RATE (KT-FT) 60400 51080
DISPERSION GOOD GOOD
CWR 10 10 30 20
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ105-200830-
CENTRAL HIGHLANDS-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SNOW SNOW SNOW
CHANCE PRECIP (%) 20 50 80 30
CHANCE OF THUNDER (%) 0(NONE) 2 2 3
TEMP (24H TREND) 20 (+7) 37 (+4) 24 42
RH % (24H TREND) 95 (+25) 44 (-4) 94 53
20FTWND-VAL/AM(MPH) LGT/VAR NW 5
20FTWND-RDG/PM(MPH) S 6 G20 LGT/VAR LGT/VAR NW 7 G18
PRECIP AMOUNT 0.01 0.06 0.10 0.01
PRECIP DURATION 1 1 8 1
PRECIP BEGIN 11 PM 1 PM CONTINUING CONTINUING
PRECIP END 6 AM CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 4260 5250
TRANSPORT WND (KTS) SW 8 NW 11
VENT RATE (KT-FT) 51610 117190
DISPERSION GOOD VERY GOOD
CWR 10 40 40 10
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ106-200830-
CENTRAL MAINE NORTH OF BANGOR-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW SNOW SNOW
CHANCE PRECIP (%) 20 20 80 50
CHANCE OF THUNDER (%) 0(NONE) 2 2 2
TEMP (24H TREND) 21 (+6) 42 (+6) 26 44
RH % (24H TREND) 98 (+34) 41 (0) 99 55
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.01 0.04 0.14 0.03
PRECIP DURATION 1 0 10 2
PRECIP BEGIN 1 AM 3 PM CONTINUING CONTINUING
PRECIP END 6 AM CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL/MSL) 4900 5720
TRANSPORT WND (KTS) SW 9 NW 9
VENT RATE (KT-FT) 58320 96730
DISPERSION GOOD VERY GOOD
CWR 10 30 40 20
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ108-200830-
INTERIOR DOWNEAST-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW SHOWERS SNOW/RAIN SNOW SNOW
CHANCE PRECIP (%) 20 10 90 50
CHANCE OF THUNDER (%) 0(NONE) 2 2 0(NONE)
TEMP (24H TREND) 23 (+5) 44 (+8) 29 44
RH % (24H TREND) 100 (+35) 45 (0) 100 65
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.01 0.02 0.26 0.04
PRECIP DURATION 0 0 10 1
PRECIP BEGIN 2 AM 5 PM CONTINUING CONTINUING
PRECIP END 6 AM CONTINUING CONTINUING 4 PM
MIXING HGT(FT-AGL/MSL) 5150 5660
TRANSPORT WND (KTS) SW 10 NW 10
VENT RATE (KT-FT) 59740 59000
DISPERSION GOOD GOOD
CWR 10 10 100 50
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ112-200830-
COASTAL DOWNEAST-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE SNOW SHOWERS SNOW/RAIN SNOW SNOW
CHANCE PRECIP (%) 20 10 90 50
CHANCE OF THUNDER (%) 0(NONE) 2 2 0(NONE)
TEMP (24H TREND) 24 (+4) 44 (+9) 29 44
RH % (24H TREND) 98 (+33) 49 (+2) 100 65
20FTWND-VAL/AM(MPH) LGT/VAR LGT/VAR
20FTWND-RDG/PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.02 0.33 0.06
PRECIP DURATION 0 0 10 1
PRECIP BEGIN 2 AM 5 PM CONTINUING CONTINUING
PRECIP END 6 AM CONTINUING CONTINUING 4 PM
MIXING HGT(FT-AGL/MSL) 4590 5400
TRANSPORT WND (KTS) W 9 NW 9
VENT RATE (KT-FT) 61780 53750
DISPERSION GOOD GOOD
CWR 10 20 100 80
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ113-200830-
BANGOR REGION-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW/RAIN SNOW SNOW
CHANCE PRECIP (%) 20 30 80 30
CHANCE OF THUNDER (%) 0(NONE) 2 2 0(NONE)
TEMP (24H TREND) 22 (+5) 43 (+6) 29 45
RH % (24H TREND) 100 (+28) 40 (-7) 100 53
20FTWND-VAL/AM(MPH) LGT/VAR NW 5
20FTWND-RDG/PM(MPH) S 5 SW 5 LGT/VAR NW 7 G17
PRECIP AMOUNT 0.00 0.05 0.15 0.01
PRECIP DURATION 0 0 8 1
PRECIP BEGIN 2 AM 3 PM CONTINUING CONTINUING
PRECIP END 4 AM CONTINUING CONTINUING 10 AM
MIXING HGT(FT-AGL/MSL) 4850 5980
TRANSPORT WND (KTS) SW 8 NW 9
VENT RATE (KT-FT) 42740 61340
DISPERSION FAIR GOOD
CWR 40 70 20
KBDI <200 <200 <200 <200
REMARKS...NONE.
MEZ114-200830-
EASTERN PENOBSCOT BAY COAST-
301 PM EDT THU MAR 19 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY MCLDY PCLDY
PRECIP TYPE SNOW SHOWERS SNOW/RAIN SNOW SHOWERS
CHANCE PRECIP (%) 20 20 90 40
CHANCE OF THUNDER (%) 0(NONE) 2 2 0(NONE)
TEMP (24H TREND) 24 (+4) 44 (+8) 29 45
RH % (24H TREND) 100 (+28) 46 (-8) 100 65
20FTWND-VAL/AM(MPH) LGT/VAR NW 5 G17
20FTWND-RDG/PM(MPH) LGT/VAR SW 5 S 5 G20 NW 7 G17
PRECIP AMOUNT 0.00 0.05 0.27 0.02
PRECIP DURATION 0 0 9 1
PRECIP BEGIN 2 AM 4 PM CONTINUING CONTINUING
PRECIP END 3 AM CONTINUING CONTINUING 10 AM
MIXING HGT(FT-AGL/MSL) 4730 6000
TRANSPORT WND (KTS) SW 9 NW 9
VENT RATE (KT-FT) 44410 64740
DISPERSION FAIR GOOD
CWR 40 100 30
KBDI <200 <200 <200 <200
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. HIGHS IN
THE MID 30S. WEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
20. NORTHEAST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE LOWER
30S. NORTH WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
15. NORTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS IN THE
UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 11. NORTHWEST WINDS
AROUND 5 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS IN THE MID
30S. SOUTHWEST WINDS AROUND 10 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES BELOW NORMAL. PRECIPITATION NEAR NORMAL.
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