005
FNUS51 KGYX 211820
FWFGYX
FIRE WEATHER PLANNING FORECAST FOR WESTERN MAINE AND NEW HAMPSHIRE
NATIONAL WEATHER SERVICE GRAY ME
220 PM EDT FRI AUG 21 2026
DISCUSSION
HUMIDITY WILL INCREASE OVER THE WEEKEND WITH SHOWER CHANCES
SATURDAY MAINLY CONFINED NEAR THE COAST FOR THE FIRST PART OF THE
DAY, POSSIBLY EXPANDING FARTHER NORTH INTO WESTERN ME IN THE
AFTERNOON AND EVENING. 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 ACROSS THE INTERIOR.
MEZ104-220815-
WESTERN MAINE MOUNTAINS AND FOOTHILLS-
INCLUDING THE CITIES OF FARMINGTON, RUMFORD, BETHEL, EUSTIS,
JACKMAN, AND CARRABASSETT VALLEY
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 3 8 19(LTD)
CHANCE PRECIP (%) 0 0 50 60
TEMP (24H TREND) 49 (-2) 75 (+1) 55 73
RH % (24H TREND) 87 (0) 46 (+8) 100 72
20FTWND - AM(MPH) E 6 G17 E 5
20FTWND - PM(MPH) LGT/VAR SE 9 G19 E 6 G17 SE 8 G17
PRECIP AMOUNT 0.00 0.00 0.03 0.03
PRECIP DURATION 3 4
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(FT-AGL) 5580(UNST) 2150(MRGL)
TRANSPORT WND (MPH) SE 12 SE 10
VENT RATE (KT-FT) 55800 19350
CWR 0 0 10 10
KBDI 201-300 N/A N/A N/A
REMARKS...NONE.
MEZ107-220815-
KENNEBEC RIVER VALLEY-
INCLUDING THE CITIES OF AUGUSTA, WATERVILLE, SKOWHEGAN, AUBURN,
LEWISTON, LIBERTY, AND LIVERMORE
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 7 8 20(LTD)
CHANCE PRECIP (%) 0 50 70 60
TEMP (24H TREND) 52 (-6) 77 (-3) 57 75
RH % (24H TREND) 90 (+10) 60 (+21) 100 82
20FTWND - AM(MPH) NE 5 LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 8 E 6 SE 6
PRECIP AMOUNT 0.00 0.05 0.07 0.06
PRECIP DURATION 1 4 6
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 4870(UNST) 2070(MRGL)
TRANSPORT WND (MPH) E 13 SE 9
VENT RATE (KT-FT) 53570 16560
CWR 0 20 20 20
KBDI 401-500 N/A N/A N/A
REMARKS...NONE.
MEZ109-220815-
LAKES REGION-
INCLUDING THE CITIES OF SANFORD, NORTH WINDHAM, GRAY,
NEW GLOUCESER, FRYEBURG, SOUTH PARIS, AND HIRAM
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 4 6 19(LTD)
CHANCE PRECIP (%) 0 40 60 60
TEMP (24H TREND) 52 (-6) 75 (-4) 55 75
RH % (24H TREND) 92 (+12) 65 (+25) 100 81
20FTWND - AM(MPH) NE 6 LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 8 NE 6 SE 6
PRECIP AMOUNT 0.00 0.03 0.04 0.06
PRECIP DURATION 1 3 3
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3890(UNST) 2100(MRGL)
TRANSPORT WND (MPH) E 12 SE 9
VENT RATE (KT-FT) 38900 16800
CWR 0 10 10 20
KBDI 401-500 N/A N/A N/A
REMARKS...NONE.
MEZ110-220815-
BEACHES AND CASCO BAY-
INCLUDING THE CITIES OF KITTERY, YORK, KENNEBUNK, SCARBOROUGH,
PORTLAND, YARMOUTH, FREEPORT, BRUNSWICK, TOPSHAM,
BOOTHBAY HARBOR, AND DAMARISCOTTA
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 5 5 17(LTD)
CHANCE PRECIP (%) 0 60 60 60
TEMP (24H TREND) 54 (-8) 75 (-4) 57 75
RH % (24H TREND) 93 (+12) 66 (+24) 100 80
20FTWND - AM(MPH) NE 8 G17 LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 9 G19 NE 8 G17 SE 6
PRECIP AMOUNT 0.00 0.08 0.06 0.10
PRECIP DURATION 2 3 4
PRECIP BEGIN 9 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 2600(MRGL) 1810(MRGL)
TRANSPORT WND (MPH) E 14 SE 8
VENT RATE (KT-FT) 31200 12670
CWR 0 30 30 30
KBDI 501-600 N/A N/A N/A
REMARKS...NONE.
MEZ111-220815-
MID-COAST-
INCLUDING THE CITIES OF WALDOBORO, ROCKLAND, CAMDEN,
LINCOLNVILLE, BELFAST, SEARSPORT, ISLESBORO, AND VINALHAVEN
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE OF THUNDER (%) 0(NONE) 9 9 16(LTD)
CHANCE PRECIP (%) 0 60 70 70
TEMP (24H TREND) 55 (-6) 76 (-3) 58 74
RH % (24H TREND) 89 (+6) 66 (+28) 100 88
20FTWND - AM(MPH) NE 8 G17 E 5
20FTWND - PM(MPH) LGT/VAR E 9 G17 E 8 G19 SE 6
PRECIP AMOUNT 0.00 0.11 0.11 0.13
PRECIP DURATION 2 5 5
PRECIP BEGIN 1 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3130(UNST) 1750(MRGL)
TRANSPORT WND (MPH) E 14 SE 9
VENT RATE (KT-FT) 37560 14000
CWR 0 40 40 40
KBDI 401-500 N/A N/A N/A
REMARKS...NONE.
NHZ021-220815-
COOS COUNTY-
INCLUDING THE CITIES OF ERROL, MILLSFIELD, COLEBROOK, BERLIN,
DUMMER, MILAN, YORK POND, AND LANCASTER
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 2 3 20(LTD)
CHANCE PRECIP (%) 0 0 20 60
TEMP (24H TREND) 48 (0) 76 (+3) 54 76
RH % (24H TREND) 88 (-4) 47 (+5) 100 63
20FTWND - AM(MPH) SE 6 G19 LGT/VAR
20FTWND - PM(MPH) LGT/VAR SE 8 G21 SE 6 G19 SE 6
PRECIP AMOUNT 0.00 0.00 0.01 0.03
PRECIP DURATION 1 2
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(FT-AGL) 5510(UNST) 3080(UNST)
TRANSPORT WND (MPH) SE 12 SE 12
VENT RATE (KT-FT) 55100 30800
CWR 0 0 10
KBDI 201-300 N/A N/A N/A
REMARKS...NONE.
NHZ022-220815-
WHITE MOUNTIANS-
INCLUDING THE CITIES OF LINCOLN, LITTLETON, THORNTON,
WATERVILLE VALLEY, WOODSTOCK, JACKSON, NORTH CONWAY, CONWAY,
AND CRAWFORD NOTCH
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 3 6 20(LTD)
CHANCE PRECIP (%) 0 20 30 70
TEMP (24H TREND) 51 (-1) 76 (0) 54 76
RH % (24H TREND) 91 (+4) 57 (+14) 100 70
20FTWND - AM(MPH) E 5 LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 6 E 5 SE 5
PRECIP AMOUNT 0.00 0.00 0.01 0.08
PRECIP DURATION 0 2 4
PRECIP BEGIN 2 PM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 4880(UNST) 3050(UNST)
TRANSPORT WND (MPH) E 12 SE 10
VENT RATE (KT-FT) 48800 27450
CWR 0 30
KBDI 301-400 N/A N/A N/A
REMARKS...NONE.
NHZ023-220815-
CENTRAL LAKES-
INCLUDING THE CITIES OF LEBANON, PLYMOUTH, LACONIA, WOLFEBORO,
ALTON, AND OSSIPEE
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 4 4 20(LTD)
CHANCE PRECIP (%) 0 30 40 70
TEMP (24H TREND) 54 (-2) 74 (-4) 56 75
RH % (24H TREND) 94 (+9) 65 (+23) 100 75
20FTWND - AM(MPH) NE 6 LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 6 E 5 SE 5
PRECIP AMOUNT 0.00 0.02 0.03 0.08
PRECIP DURATION 1 2 4
PRECIP BEGIN 1 PM CONTINUING 6 AM
PRECIP END CONTINUING 5 AM CONTINUING
MIXING HGT(FT-AGL) 4310(UNST) 2450(MRGL)
TRANSPORT WND (MPH) E 12 SE 10
VENT RATE (KT-FT) 43100 22050
CWR 0 10 20
KBDI 401-500 N/A N/A N/A
REMARKS...NONE.
NHZ024-220815-
LAKE SUNAPEE AND MONADNOCKS-
INCLUDING THE CITIES OF CLAREMONT, KEENE, AND JAFFREY
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 3 4 20(LTD)
CHANCE PRECIP (%) 0 30 30 70
TEMP (24H TREND) 54 (-2) 73 (-4) 55 75
RH % (24H TREND) 100 (+8) 70 (+24) 100 75
20FTWND - AM(MPH) LGT/VAR LGT/VAR
20FTWND - PM(MPH) LGT/VAR E 5 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.01 0.02 0.06
PRECIP DURATION 1 2 4
PRECIP BEGIN 10 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3870(UNST) 2340(MRGL)
TRANSPORT WND (MPH) E 10 SE 9
VENT RATE (KT-FT) 34830 18720
CWR 0 20
KBDI 201-300 N/A N/A N/A
REMARKS...NONE.
NHZ025-220815-
MERRIMACK VALLEY-
INCLUDING THE CITIES OF MANCHESTER, NASHUA, WEARE, AND DERRY
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 4 6 20(LTD)
CHANCE PRECIP (%) 0 40 30 60
TEMP (24H TREND) 55 (-5) 72 (-6) 57 77
RH % (24H TREND) 99 (+17) 77 (+30) 100 79
20FTWND - AM(MPH) NE 6 LGT/VAR
20FTWND - PM(MPH) E 5 NE 6 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.05 0.04 0.08
PRECIP DURATION 2 2 4
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3360(UNST) 2290(MRGL)
TRANSPORT WND (MPH) E 13 SE 9
VENT RATE (KT-FT) 36960 18320
CWR 0 20 20 20
KBDI 301-400 N/A N/A N/A
REMARKS...NONE.
NHZ026-220815-
SEACOAST-
INCLUDING THE CITIES OF PORTSMOUTH, DOVER, HAMPTON, AND EXETER
220 PM EDT FRI AUG 21 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE OF THUNDER (%) 0(NONE) 5 5 19(LTD)
CHANCE PRECIP (%) 0 50 30 50
TEMP (24H TREND) 57 (-5) 72 (-5) 59 76
RH % (24H TREND) 98 (+18) 73 (+21) 100 78
20FTWND - AM(MPH) NE 8 G17 LGT/VAR
20FTWND - PM(MPH) LGT/VAR NE 8 G17 NE 5 LGT/VAR
PRECIP AMOUNT 0.00 0.02 0.03 0.11
PRECIP DURATION 1 2 2
PRECIP BEGIN 8 AM CONTINUING CONTINUING
PRECIP END CONTINUING CONTINUING CONTINUING
MIXING HGT(FT-AGL) 2340(MRGL) 1890(MRGL)
TRANSPORT WND (MPH) NE 14 SE 7
VENT RATE (KT-FT) 28080 11340
CWR 0 10 10 30
KBDI 401-500 N/A N/A N/A
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
SUNDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY. PATCHY FOG.
LOWS AROUND 60. SOUTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO
10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 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
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH. DAYTIME HUMIDITY VALUES MODERATE.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. SOUTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH. DAYTIME HUMIDITY VALUES
HIGH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES NEAR NORMAL. PRECIPITATION ABOVE NORMAL.
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