052
FNUS51 KGYX 201818
FWFGYX
FIRE WEATHER PLANNING FORECAST FOR WESTERN MAINE AND NEW HAMPSHIRE
NATIONAL WEATHER SERVICE GRAY ME
218 PM EDT THU AUG 20 2026
DISCUSSION
MOSTLY DRY CONDITIONS ARE EXPECTED THROUGH FRIDAY WITH THE
EXCEPTION OF LIGHT SHOWER CHANCES ACROSS SOUTHERN NEW HAMPSHIRE.
MIN RH GENERALLY STAYS ABOVE 40 PERCENT FRIDAY WITH GOOD RECOVERY
AT NIGHT, AND THEN RH TRENDS UPWARD FOR THE WEEKEND. LOW PRESSURE
BRINGS CHANCES FOR RAIN SATURDAY AND SATURDAY NIGHT WITH WETTING
RAINFALL LIKELY ALONG AND SOUTH OF THE MOUNTAINS. ANOTHER SYSTEM
CROSSES SUNDAY AND SUNDAY NIGHT BRINGING POTENTIAL FOR WETTING
RAINFALL. DRIER CONDITIONS RETURN EARLY NEXT WEEK WITH SOME
LINGERING SHOWERS POSSIBLE ON MONDAY.
MEZ104-210815-
WESTERN MAINE MOUNTAINS AND FOOTHILLS-
INCLUDING THE CITIES OF FARMINGTON, RUMFORD, BETHEL, EUSTIS,
JACKMAN, AND CARRABASSETT VALLEY
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 1 0(NONE) 0(NONE) 4
CHANCE PRECIP (%) 0 0 0 30
TEMP (24H TREND) 48 (-8) 78 (+4) 50 73
RH % (24H TREND) 98 (+2) 37 (-10) 92 50
20FTWND - AM(MPH) LGT/VAR E 6
20FTWND - PM(MPH) NW 5 G17 LGT/VAR LGT/VAR SE 9 G19
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6440(UNST) 5050(UNST)
TRANSPORT WND (MPH) NW 6 SE 13
VENT RATE (KT-FT) 32200 55550
CWR 0 0 0
KBDI 201-300 201-300 201-300 N/A
REMARKS...NONE.
MEZ107-210815-
KENNEBEC RIVER VALLEY-
INCLUDING THE CITIES OF AUGUSTA, WATERVILLE, SKOWHEGAN, AUBURN,
LEWISTON, LIBERTY, AND LIVERMORE
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 1 0(NONE) 0(NONE) 8
CHANCE PRECIP (%) 0 0 0 50
TEMP (24H TREND) 54 (-5) 80 (0) 52 74
RH % (24H TREND) 93 (-5) 43 (0) 99 63
20FTWND - AM(MPH) LGT/VAR NE 5
20FTWND - PM(MPH) LGT/VAR LGT/VAR LGT/VAR E 8 G17
PRECIP AMOUNT 0.00 0.00 0.00 0.04
PRECIP DURATION 2
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6770(UNST) 4090(UNST)
TRANSPORT WND (MPH) N 6 E 12
VENT RATE (KT-FT) 33850 40900
CWR 0 0 0 20
KBDI 401-500 401-500 401-500 N/A
REMARKS...NONE.
MEZ109-210815-
LAKES REGION-
INCLUDING THE CITIES OF SANFORD, NORTH WINDHAM, GRAY,
NEW GLOUCESER, FRYEBURG, SOUTH PARIS, AND HIRAM
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 1 0(NONE) 0(NONE) 6
CHANCE PRECIP (%) 0 0 0 50
TEMP (24H TREND) 54 (-4) 80 (-1) 52 73
RH % (24H TREND) 91 (+1) 46 (+2) 100 71
20FTWND - AM(MPH) NE 5 NE 8
20FTWND - PM(MPH) LGT/VAR E 6 SE 5 E 8 G17
PRECIP AMOUNT 0.00 0.00 0.00 0.06
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6560(UNST) 3180(UNST)
TRANSPORT WND (MPH) NE 7 E 13
VENT RATE (KT-FT) 39360 34980
CWR 0 0 0 20
KBDI 401-500 401-500 401-500 N/A
REMARKS...NONE.
MEZ110-210815-
BEACHES AND CASCO BAY-
INCLUDING THE CITIES OF KITTERY, YORK, KENNEBUNK, SCARBOROUGH,
PORTLAND, YARMOUTH, FREEPORT, BRUNSWICK, TOPSHAM,
BOOTHBAY HARBOR, AND DAMARISCOTTA
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 0(NONE) 0(NONE) 0(NONE) 10
CHANCE PRECIP (%) 0 0 0 60
TEMP (24H TREND) 57 (-3) 80 (-2) 53 73
RH % (24H TREND) 89 (-5) 47 (-2) 100 69
20FTWND - AM(MPH) NE 6 NE 9 G19
20FTWND - PM(MPH) LGT/VAR E 6 SE 5 E 10 G21
PRECIP AMOUNT 0.00 0.00 0.00 0.12
PRECIP DURATION 4
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 5060(UNST) 2030(MRGL)
TRANSPORT WND (MPH) E 8 E 12
VENT RATE (KT-FT) 35420 20300
CWR 0 0 0 40
KBDI 501-600 501-600 501-600 N/A
REMARKS...NONE.
MEZ111-210815-
MID-COAST-
INCLUDING THE CITIES OF WALDOBORO, ROCKLAND, CAMDEN,
LINCOLNVILLE, BELFAST, SEARSPORT, ISLESBORO, AND VINALHAVEN
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 1 0(NONE) 0(NONE) 10
CHANCE PRECIP (%) 0 0 0 60
TEMP (24H TREND) 57 (-2) 81 (0) 53 73
RH % (24H TREND) 92 (-8) 44 (-1) 98 68
20FTWND - AM(MPH) N 5 NE 8 G17
20FTWND - PM(MPH) LGT/VAR LGT/VAR LGT/VAR E 9 G18
PRECIP AMOUNT 0.00 0.00 0.00 0.11
PRECIP DURATION 3
PRECIP BEGIN 9 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6040(UNST) 2520(MRGL)
TRANSPORT WND (MPH) E 6 E 13
VENT RATE (KT-FT) 30200 27720
CWR 0 0 0 40
KBDI 401-500 401-500 401-500 N/A
REMARKS...NONE.
NHZ021-210815-
COOS COUNTY-
INCLUDING THE CITIES OF ERROL, MILLSFIELD, COLEBROOK, BERLIN,
DUMMER, MILAN, YORK POND, AND LANCASTER
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 0(NONE) 0(NONE) 0(NONE) 3
CHANCE PRECIP (%) 0 0 0 20
TEMP (24H TREND) 47 (-7) 77 (+5) 49 75
RH % (24H TREND) 99 (+1) 37 (-13) 91 49
20FTWND - AM(MPH) LGT/VAR SE 6 G17
20FTWND - PM(MPH) LGT/VAR LGT/VAR LGT/VAR SE 8 G19
PRECIP AMOUNT 0.00 0.00 0.00 0.01
PRECIP DURATION 1
PRECIP BEGIN 11 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 5950(UNST) 4680(UNST)
TRANSPORT WND (MPH) NW 5 SE 13
VENT RATE (KT-FT) 23800 51480
CWR 0 0 0
KBDI 201-300 201-300 201-300 N/A
REMARKS...NONE.
NHZ022-210815-
WHITE MOUNTIANS-
INCLUDING THE CITIES OF LINCOLN, LITTLETON, THORNTON,
WATERVILLE VALLEY, WOODSTOCK, JACKSON, NORTH CONWAY, CONWAY,
AND CRAWFORD NOTCH
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 0(NONE) 0(NONE) 0(NONE) 2
CHANCE PRECIP (%) 0 0 0 40
TEMP (24H TREND) 49 (-6) 80 (+4) 51 75
RH % (24H TREND) 96 (+2) 41 (-3) 94 58
20FTWND - AM(MPH) LGT/VAR E 5
20FTWND - PM(MPH) NW 5 G19 LGT/VAR LGT/VAR SE 6
PRECIP AMOUNT 0.00 0.00 0.00 0.02
PRECIP DURATION 1
PRECIP BEGIN 10 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6070(UNST) 4280(UNST)
TRANSPORT WND (MPH) NE 5 E 12
VENT RATE (KT-FT) 24280 42800
CWR 0 0 0 10
KBDI 301-400 301-400 301-400 N/A
REMARKS...NONE.
NHZ023-210815-
CENTRAL LAKES-
INCLUDING THE CITIES OF LEBANON, PLYMOUTH, LACONIA, WOLFEBORO,
ALTON, AND OSSIPEE
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE OF THUNDER (%) 2 0(NONE) 0(NONE) 3
CHANCE PRECIP (%) 0 0 0 50
TEMP (24H TREND) 52 (-6) 80 (+1) 54 73
RH % (24H TREND) 95 (+4) 44 (+1) 97 68
20FTWND - AM(MPH) LGT/VAR E 8
20FTWND - PM(MPH) LGT/VAR E 5 LGT/VAR E 8 G17
PRECIP AMOUNT 0.00 0.00 0.00 0.03
PRECIP DURATION 2
PRECIP BEGIN 6 AM
PRECIP END CONTINUING
MIXING HGT(FT-AGL) 6280(UNST) 3560(UNST)
TRANSPORT WND (MPH) E 6 E 13
VENT RATE (KT-FT) 31400 39160
CWR 0 0 0 10
KBDI 401-500 401-500 401-500 N/A
REMARKS...NONE.
NHZ024-210815-
LAKE SUNAPEE AND MONADNOCKS-
INCLUDING THE CITIES OF CLAREMONT, KEENE, AND JAFFREY
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE OF THUNDER (%) 2 0(NONE) 0(NONE) 4
CHANCE PRECIP (%) 30 0 20 50
TEMP (24H TREND) 52 (-6) 79 (0) 53 72
RH % (24H TREND) 99 (+3) 47 (+2) 100 73
20FTWND - AM(MPH) LGT/VAR NE 5
20FTWND - PM(MPH) LGT/VAR LGT/VAR LGT/VAR E 6
PRECIP AMOUNT 0.02 0.00 0.01 0.05
PRECIP DURATION 1 0 2
PRECIP BEGIN 6 PM 2 AM CONTINUING
PRECIP END 1 AM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 5720(UNST) 3340(UNST)
TRANSPORT WND (MPH) E 9 E 12
VENT RATE (KT-FT) 45760 33400
CWR 10 0 20
KBDI 201-300 201-300 201-300 N/A
REMARKS...NONE.
NHZ025-210815-
MERRIMACK VALLEY-
INCLUDING THE CITIES OF MANCHESTER, NASHUA, WEARE, AND DERRY
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE OF THUNDER (%) 2 0(NONE) 0(NONE) 5
CHANCE PRECIP (%) 30 0 20 60
TEMP (24H TREND) 55 (-3) 79 (-6) 55 72
RH % (24H TREND) 94 (+6) 52 (+12) 100 80
20FTWND - AM(MPH) NE 5 NE 8
20FTWND - PM(MPH) LGT/VAR E 6 E 5 E 8
PRECIP AMOUNT 0.03 0.00 0.01 0.09
PRECIP DURATION 1 0 5
PRECIP BEGIN 6 PM 2 AM CONTINUING
PRECIP END 2 AM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 5030(UNST) 2600(MRGL)
TRANSPORT WND (MPH) E 10 NE 14
VENT RATE (KT-FT) 45270 31200
CWR 10 0 30
KBDI 301-400 301-400 301-400 N/A
REMARKS...NONE.
NHZ026-210815-
SEACOAST-
INCLUDING THE CITIES OF PORTSMOUTH, DOVER, HAMPTON, AND EXETER
218 PM EDT THU AUG 20 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS NONE SHOWERS SHOWERS
CHANCE OF THUNDER (%) 1 0(NONE) 0(NONE) 6
CHANCE PRECIP (%) 40 0 20 60
TEMP (24H TREND) 59 (-4) 78 (-8) 56 72
RH % (24H TREND) 93 (+6) 54 (+13) 100 78
20FTWND - AM(MPH) NE 6 NE 9 G17
20FTWND - PM(MPH) LGT/VAR E 6 LGT/VAR NE 9 G17
PRECIP AMOUNT 0.04 0.00 0.00 0.13
PRECIP DURATION 1 0 6
PRECIP BEGIN 6 PM 2 AM CONTINUING
PRECIP END 2 AM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3650(UNST) 2140(MRGL)
TRANSPORT WND (MPH) E 10 NE 15
VENT RATE (KT-FT) 32850 27820
CWR 10 0 50
KBDI 401-500 401-500 401-500 N/A
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY NIGHT
MOSTLY CLOUDY WITH RAIN LIKELY. AREAS OF FOG.
LOWS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. AREAS OF FOG.
HIGHS IN THE MID 70S. SOUTHEAST WINDS AROUND 5 MPH. DAYTIME
HUMIDITY VALUES HIGH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WEST WINDS
5 TO 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO 10 MPH.
DAYTIME HUMIDITY VALUES MODERATE.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. WEST WINDS
5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH. DAYTIME HUMIDITY VALUES
HIGH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION ABOVE NORMAL.
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