400
FNUS51 KGYX 121857
FWFGYX
FIRE WEATHER PLANNING FORECAST FOR WESTERN MAINE AND NEW HAMPSHIRE
NATIONAL WEATHER SERVICE GRAY ME
257 PM EDT SAT SEP 12 2026
DISCUSSION
HUMIDITY INCREASES TONIGHT WITH WIDESPREAD WETTING RAINFALL LIKELY
BETWEEN AN AREA OF LOW PRESSURE SUNDAY AND A COLD FRONT CROSSING
SUNDAY NIGHT. DRIER AIR ARRIVES MONDAY WITH MIN RH DOWN TO 40
PERCENT WITH NW WINDS GUSTING 25 TO 30 MPH. HIGH PRESSURE
CONTINUES DRY WEATHER INTO WEDNESDAY WITH LIGHT WINDS. THE NEXT
CHANCE FOR WETTING RAINFALL ARRIVES THURSDAY INTO THURSDAY NIGHT.
MEZ104-130815-
WESTERN MAINE MOUNTAINS AND FOOTHILLS-
INCLUDING THE CITIES OF FARMINGTON, RUMFORD, BETHEL, EUSTIS,
JACKMAN, AND CARRABASSETT VALLEY
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 5 7 8 4
CHANCE PRECIP (%) 0 50 50 0
TEMP (24H TREND) 49 (+7) 69 (-2) 50 65
RH % (24H TREND) 99 (+2) 75 (+34) 100 49
20FTWND - AM(MPH) S 8 NW 14 G29
20FTWND - PM(MPH) S 8 G19 S 9 G17 S 6 NW 16 G29
PRECIP AMOUNT 0.00 0.13 0.08 0.00
PRECIP DURATION 2 3
PRECIP BEGIN 6 AM 6 PM
PRECIP END 3 PM 6 AM
MIXING HGT(FT-AGL) 1790(MRGL) 5120(UNST)
TRANSPORT WND (MPH) S 14 NW 22
VENT RATE (KT-FT) 21480 97280
CWR 0 40 40 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
MEZ107-130815-
KENNEBEC RIVER VALLEY-
INCLUDING THE CITIES OF AUGUSTA, WATERVILLE, SKOWHEGAN, AUBURN,
LEWISTON, LIBERTY, AND LIVERMORE
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 3 8 8 4
CHANCE PRECIP (%) 0 70 40 0
TEMP (24H TREND) 51 (+9) 67 (-6) 57 70
RH % (24H TREND) 100 (+1) 92 (+50) 100 51
20FTWND - AM(MPH) S 10 G21 W 13 G28
20FTWND - PM(MPH) S 9 G19 S 10 G19 S 6 NW 14 G28
PRECIP AMOUNT 0.00 0.23 0.05 0.00
PRECIP DURATION 5 1
PRECIP BEGIN 6 AM 3 AM
PRECIP END 6 PM 6 AM
MIXING HGT(FT-AGL) 1810(MRGL) 6090(UNST)
TRANSPORT WND (MPH) S 16 NW 20
VENT RATE (KT-FT) 25340 103530
CWR 0 80 80 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
MEZ109-130815-
LAKES REGION-
INCLUDING THE CITIES OF SANFORD, NORTH WINDHAM, GRAY,
NEW GLOUCESER, FRYEBURG, SOUTH PARIS, AND HIRAM
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 7 11 6 4
CHANCE PRECIP (%) 0 90 30 0
TEMP (24H TREND) 52 (+10) 68 (-6) 56 70
RH % (24H TREND) 100 (+2) 88 (+48) 100 46
20FTWND - AM(MPH) S 8 G17 NW 14 G28
20FTWND - PM(MPH) S 9 G19 S 8 G17 LGT/VAR NW 14 G28
PRECIP AMOUNT 0.00 0.36 0.03 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(FT-AGL) 1520(MRGL) 5740(UNST)
TRANSPORT WND (MPH) S 13 NW 18
VENT RATE (KT-FT) 16720 91840
CWR 0 100 100 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
MEZ110-130815-
BEACHES AND CASCO BAY-
INCLUDING THE CITIES OF KITTERY, YORK, KENNEBUNK, SCARBOROUGH,
PORTLAND, YARMOUTH, FREEPORT, BRUNSWICK, TOPSHAM,
BOOTHBAY HARBOR, AND DAMARISCOTTA
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 3 12 7 6
CHANCE PRECIP (%) 0 90 30 0
TEMP (24H TREND) 53 (+9) 68 (-2) 57 73
RH % (24H TREND) 100 (+4) 90 (+40) 100 44
20FTWND - AM(MPH) S 11 G21 NW 13 G26
20FTWND - PM(MPH) S 9 G19 S 11 G21 S 6 NW 14 G28
PRECIP AMOUNT 0.00 0.37 0.04 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(FT-AGL) 1350(MRGL) 6360(UNST)
TRANSPORT WND (MPH) S 13 NW 17
VENT RATE (KT-FT) 14850 95400
CWR 0 100 100 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
MEZ111-130815-
MID-COAST-
INCLUDING THE CITIES OF WALDOBORO, ROCKLAND, CAMDEN,
LINCOLNVILLE, BELFAST, SEARSPORT, ISLESBORO, AND VINALHAVEN
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE OF THUNDER (%) 1 10 10 4
CHANCE PRECIP (%) 0 80 30 40
TEMP (24H TREND) 53 (+8) 66 (-4) 57 72
RH % (24H TREND) 100 (+3) 90 (+40) 100 52
20FTWND - AM(MPH) S 11 G21 W 13 G25
20FTWND - PM(MPH) S 8 G17 S 11 G21 S 6 NW 13 G26
PRECIP AMOUNT 0.00 0.27 0.05 0.01
PRECIP DURATION 5 1 0
PRECIP BEGIN 8 AM 3 AM CONTINUING
PRECIP END 6 PM CONTINUING 12 PM
MIXING HGT(FT-AGL) 1660(MRGL) 6150(UNST)
TRANSPORT WND (MPH) S 16 NW 18
VENT RATE (KT-FT) 23240 98400
CWR 0 90 90 10
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
NHZ021-130815-
COOS COUNTY-
INCLUDING THE CITIES OF ERROL, MILLSFIELD, COLEBROOK, BERLIN,
DUMMER, MILAN, YORK POND, AND LANCASTER
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS TSTMS SHOWERS
CHANCE OF THUNDER (%) 9 9 14 4
CHANCE PRECIP (%) 50 60 80 20
TEMP (24H TREND) 50 (+11) 70 (-1) 49 61
RH % (24H TREND) 97 (0) 77 (+36) 100 57
20FTWND - AM(MPH) S 6 G21 NW 14 G34
20FTWND - PM(MPH) S 8 G23 S 5 G18 SW 5 G23 NW 14 G34
PRECIP AMOUNT 0.08 0.17 0.18 0.03
PRECIP DURATION 1 2 5 1
PRECIP BEGIN 3 AM CONTINUING CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING 1 PM
MIXING HGT(FT-AGL) 1910(MRGL) 4670(UNST)
TRANSPORT WND (MPH) SW 13 NW 20
VENT RATE (KT-FT) 21010 79390
CWR 40 40 60 60
KBDI 201-300 201-300 201-300 201-300
REMARKS...NONE.
NHZ022-130815-
WHITE MOUNTIANS-
INCLUDING THE CITIES OF LINCOLN, LITTLETON, THORNTON,
WATERVILLE VALLEY, WOODSTOCK, JACKSON, NORTH CONWAY, CONWAY,
AND CRAWFORD NOTCH
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 14 14 11 3
CHANCE PRECIP (%) 60 80 50 0
TEMP (24H TREND) 52 (+11) 69 (-2) 50 65
RH % (24H TREND) 99 (+4) 83 (+38) 100 54
20FTWND - AM(MPH) S 6 G21 NW 12 G32
20FTWND - PM(MPH) S 6 G20 LGT/VAR LGT/VAR NW 12 G29
PRECIP AMOUNT 0.13 0.27 0.10 0.00
PRECIP DURATION 2 4 3
PRECIP BEGIN 2 AM CONTINUING 6 PM
PRECIP END CONTINUING 5 PM 6 AM
MIXING HGT(FT-AGL) 1530(MRGL) 4890(UNST)
TRANSPORT WND (MPH) S 10 NW 17
VENT RATE (KT-FT) 13770 73350
CWR 70 70 70 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
NHZ023-130815-
CENTRAL LAKES-
INCLUDING THE CITIES OF LEBANON, PLYMOUTH, LACONIA, WOLFEBORO,
ALTON, AND OSSIPEE
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS NONE
CHANCE OF THUNDER (%) 13 13 6 3
CHANCE PRECIP (%) 40 80 40 0
TEMP (24H TREND) 53 (+9) 69 (-5) 55 68
RH % (24H TREND) 100 (+6) 85 (+41) 100 52
20FTWND - AM(MPH) S 5 NW 12 G25
20FTWND - PM(MPH) S 6 S 5 LGT/VAR NW 12 G25
PRECIP AMOUNT 0.14 0.40 0.03 0.00
PRECIP DURATION 1 5 1
PRECIP BEGIN 1 AM CONTINUING 10 PM
PRECIP END CONTINUING 4 PM 6 AM
MIXING HGT(FT-AGL) 1300(MRGL) 5240(UNST)
TRANSPORT WND (MPH) S 9 NW 21
VENT RATE (KT-FT) 10400 94320
CWR 70 90 90 0
KBDI 401-500 401-500 401-500 401-500
REMARKS...NONE.
NHZ024-130815-
LAKE SUNAPEE AND MONADNOCKS-
INCLUDING THE CITIES OF CLAREMONT, KEENE, AND JAFFREY
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS NONE
CHANCE OF THUNDER (%) 14 15(LTD) 7 3
CHANCE PRECIP (%) 30 90 30 0
TEMP (24H TREND) 55 (+10) 71 (-3) 55 68
RH % (24H TREND) 100 (+5) 85 (+38) 100 53
20FTWND - AM(MPH) S 5 NW 10 G21
20FTWND - PM(MPH) S 5 LGT/VAR LGT/VAR NW 11 G21
PRECIP AMOUNT 0.10 0.56 0.02 0.00
PRECIP DURATION 1 6 1
PRECIP BEGIN 2 AM CONTINUING 2 AM
PRECIP END CONTINUING 4 PM 6 AM
MIXING HGT(FT-AGL) 1320(MRGL) 5400(UNST)
TRANSPORT WND (MPH) S 7 NW 20
VENT RATE (KT-FT) 7920 91800
CWR 40 100 100 0
KBDI 301-400 301-400 301-400 301-400
REMARKS...NONE.
NHZ025-130815-
MERRIMACK VALLEY-
INCLUDING THE CITIES OF MANCHESTER, NASHUA, WEARE, AND DERRY
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY MCLEAR
PRECIP TYPE NONE TSTMS SHOWERS NONE
CHANCE OF THUNDER (%) 7 16(LTD) 7 5
CHANCE PRECIP (%) 0 90 30 0
TEMP (24H TREND) 55 (+10) 69 (-7) 58 71
RH % (24H TREND) 100 (+10) 88 (+44) 100 53
20FTWND - AM(MPH) LGT/VAR NW 12 G25
20FTWND - PM(MPH) S 5 LGT/VAR LGT/VAR NW 12 G25
PRECIP AMOUNT 0.00 0.57 0.02 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM 3 AM
PRECIP END 6 PM 6 AM
MIXING HGT(FT-AGL) 1230(MRGL) 5810(UNST)
TRANSPORT WND (MPH) SE 9 NW 20
VENT RATE (KT-FT) 9840 98770
CWR 0 100 100 0
KBDI 401-500 401-500 401-500 401-500
REMARKS...NONE.
NHZ026-130815-
SEACOAST-
INCLUDING THE CITIES OF PORTSMOUTH, DOVER, HAMPTON, AND EXETER
257 PM EDT SAT SEP 12 2026
TONIGHT SUN SUN NIGHT MON
CLOUD COVER PCLDY MCLDY MCLDY PCLDY
PRECIP TYPE NONE TSTMS SHOWERS NONE
CHANCE OF THUNDER (%) 4 16(LTD) 8 6
CHANCE PRECIP (%) 0 90 20 0
TEMP (24H TREND) 54 (+8) 69 (-4) 59 71
RH % (24H TREND) 100 (+13) 90 (+42) 100 48
20FTWND - AM(MPH) S 5 NW 11 G23
20FTWND - PM(MPH) S 6 SE 5 LGT/VAR NW 11 G23
PRECIP AMOUNT 0.00 0.51 0.03 0.00
PRECIP DURATION 7 0
PRECIP BEGIN 8 AM CONTINUING
PRECIP END CONTINUING 6 AM
MIXING HGT(FT-AGL) 1330(MRGL) 5890(UNST)
TRANSPORT WND (MPH) SE 9 NW 18
VENT RATE (KT-FT) 10640 94240
CWR 0 100 100 0
KBDI 501-600 501-600 501-600 501-600
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY NIGHT
CLEAR. LOWS IN THE LOWER 40S. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS AROUND
5 MPH. DAYTIME HUMIDITY VALUES MODERATE.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS
AROUND 5 MPH. DAYTIME HUMIDITY VALUES MODERATE.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 70S. SOUTHEAST WINDS AROUND 5 MPH. DAYTIME HUMIDITY VALUES
HIGH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 50S. SOUTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 70S. NORTHWEST WINDS 5 TO 10 MPH. DAYTIME HUMIDITY VALUES
MODERATE.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
5 TO 10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES BELOW NORMAL. PRECIPITATION BELOW NORMAL.
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