945
FNUS71 KBOX 040756
FWSBOX
SPOT FORECAST FOR MASHPEE PINE BARRENS...MASS DCR
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
356 AM EDT MON MAY 4 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON MAY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
FOR TODAY, EXPECT MOSTLY CLEAR SKIES. RELATIVE HUMIDITY VALUES
THIS MORNING BETWEEN 70 AND 75 PERCENT QUICKLY FALLING AS LOW AS
45 TO 50 PERCENT BY THE AFTERNOON. SOUTHWEST WINDS TODAY INCREASE
FROM 5-10 MPH THIS MORNING TO BETWEEN 22-24 MPH THIS AFTERNOON
WITH OCCASIONAL GUSTS AS HIGH AS 35 TO 40 MPH.
FOR TUESDAY, EXPECT MOSTLY CLEAR SKIES IN THE MORNING WITH
INCREASING CLOUD COVER AND A LOW (30%) CHANCE FOR SHOWERS AFTER
8PM. WARMER TEMPERATURES EXPECTED WITH A HIGH BETWEEN 78 AND 82
DEGREES. RELATIVE HUMIDITY VALUES DECREASE FROM 85 TO 90 PERCENT
TO 55 TO 65 PERCENT BY THE AFTERNOON. ANOTHER DAY OF CONSISTENT
SOUTHWEST WINDS BUILDING TO BETWEEN 24-27 MPH IN THE AFTERNOON
WITH OCCASIONAL GUSTS AS HIGH AS 35-45 MPH.
TUESDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 61.
MIN HUMIDITY........70 PERCENT.
DEWPOINT............51.
MAX APPARENT TEMP...61.
SURFACE WINDS (MPH).SOUTHWEST WINDS 16 TO 21 MPH. GUSTS UP TO 31
MPH INCREASING TO 39 MPH IN THE AFTERNOON.
WIND (20 FT)........SOUTHWEST WINDS 16 TO 21 MPH. GUSTS UP TO 31
MPH INCREASING TO 39 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 24 TO 33 MPH.
SMOKE DISPERSAL.....FAIR (21000 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (43100 KNOT-FT) IN THE
AFTERNOON.
LVORI...............4.
ADI.................31 TO 55.
CEILING (KFT).......10 INCREASING TO 14 LATE IN THE MORNING, THEN
INCREASING TO 20 DECREASING TO 18 EARLY
INCREASING TO 20 INCREASING TO 23 LATE IN THE
AFTERNOON.
TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........26 19 15 10 10 11 11 15 19 23
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0
TEMP............54 58 60 60 61 61 61 61 61 60
DEWPOINT........51 52 52 52 52 51 51 51 51 51
RH..............90 80 75 75 72 70 70 70 70 72
HEAT INDEX (F)..54 58 60 60 61 61 61 61 61 60
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..16 17 17 18 20 20 21 21 20 20
20 FT WIND GUST.22 24 25 28 31 36 39 39 39 39
SURFACE WND DIR.SW SW SW SW SW SW SW SW SW SW
SURFACE WND SPD.16 17 17 18 20 20 21 21 20 20
SURFACE WND GST.22 24 25 28 31 36 39 39 39 39
MIX HGT (KFT)...1.0 1.4 1.5 1.5 1.6 1.6 1.6 1.5 1.5 1.5
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.24 26 28 29 29 30 30 31 33 33
LVORI...........4 3 3 3 3 3 3 3 3 3
ADI.............31 41 45 48 48 50 50 52 55 54
VRATE KT-FT/1K..21 31 37 38 40 40 40 42 43 43
VENTRATE CAT....PR PR PR PR PR FR FR FR FR FR
CEILING (KFT)...10 14 20 18 19 20 21 22 22 23
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................1 PERCENT.
MIN TEMPERATURE.....AROUND 53.
MAX HUMIDITY........93 PERCENT.
DEWPOINT............51.
MAX APPARENT TEMP...59.
SURFACE WINDS (MPH).SOUTHWEST WINDS 14 TO 18 MPH. GUSTS UP TO 36
MPH DECREASING TO 26 MPH AFTER MIDNIGHT.
WIND (20 FT)........SOUTHWEST WINDS 14 TO 18 MPH. GUSTS UP TO 36
MPH DECREASING TO 26 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 23 TO 32 MPH.
SMOKE DISPERSAL.....GOOD (39600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (19400 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............4.
ADI.................21 TO 51.
CEILING (KFT).......20 DECREASING TO 11.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........28 32 37 41 45 49 54 60 65 65 65 65
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 58 57 56 55 55 55 54 54 54 54 54
DEWPOINT........51 50 50 50 51 51 51 52 52 52 51 51
RH..............75 75 77 80 86 86 86 93 93 93 90 90
HEAT INDEX (F)..59 58 57 56 55 55 55 54 54 54 54 54
20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW
20 FT WIND SPD..18 16 16 16 15 15 15 14 14 14 14 14
20 FT WIND GUST.36 31 28 28 28 28 26 26 25 25 25 25
SURFACE WND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
SURFACE WND SPD.18 16 16 16 15 15 15 14 14 14 14 14
SURFACE WND GST.36 31 28 28 28 28 26 26 25 25 25 25
MIX HGT (KFT)...1.4 1.4 1.3 1.3 1.2 1.1 1.1 1.0 1.0 1.0 1.1 1.2
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW SW SW
TRANSP WIND SPD.32 30 28 26 26 25 24 23 23 23 24 24
LVORI...........3 3 3 3 4 4 4 5 5 5 4 4
ADI.............51 46 25 24 24 23 22 21 21 21 22 22
VRATE KT-FT/1K..40 36 32 29 27 25 22 20 19 21 23 25
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...22 21 20 17 15 13 13 12 12 12 12 11
WEDNESDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS LATE IN
THE AFTERNOON.
CWR.................2 PERCENT INCREASING TO 36 PERCENT.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........75 PERCENT.
DEWPOINT............52.
MAX APPARENT TEMP...62.
SURFACE WINDS (MPH).SOUTH WINDS 14 TO 17 MPH WITH GUSTS TO AROUND
29 MPH.
WIND (20 FT)........SOUTH WINDS 14 TO 17 MPH WITH GUSTS TO AROUND
29 MPH.
MIXING HEIGHT.......1300 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 24 TO 30 MPH.
SMOKE DISPERSAL.....FAIR (26500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (34800 KNOT-FT) IN THE
AFTERNOON.
LVORI...............6.
ADI.................1.
CEILING (KFT).......9.6 DECREASING TO 7.7 EARLY IN THE MORNING,
THEN DECREASING TO 5.9 EARLY INCREASING TO 7.8
LATE IN THE MORNING INCREASING TO 9.7
INCREASING TO 9.2 EARLY DECREASING TO 8.1
DECREASING TO 7.1 LATE IN THE AFTERNOON.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........64 64 63 69 74 80 81 81 82 85 88 91
WEATHER COV..... CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 20 30 30 40
TEMP............54 54 55 57 59 61 62 62 62 61 60 59
DEWPOINT........51 52 53 53 54 54 54 54 54 54 53 53
RH..............90 93 93 86 83 78 75 75 75 78 78 80
HEAT INDEX (F)..54 54 55 57 59 61 62 62 62 61 60 59
20 FT WIND DIR..SW S S S S S S S S S S S
20 FT WIND SPD..14 14 14 14 15 15 16 17 17 17 16 15
20 FT WIND GUST.25 24 24 25 26 28 29 29 29 28 26 25
SURFACE WND DIR.SW S S S S S S S S S S S
SURFACE WND SPD.14 14 14 14 15 15 16 17 17 17 16 15
SURFACE WND GST.25 24 24 25 26 28 29 29 29 28 26 25
MIX HGT (KFT)...1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.2 1.2
TRANSP WIND DIR.SW SW SW SW SW SW SW SW SW SW S S
TRANSP WIND SPD.24 24 24 25 28 29 30 30 30 29 28 26
LVORI...........7 8 7 6 6 4 4 4 4 4 4 6
ADI.............1 1 1 1 1 1 1 1 1 1 1 1
VRATE KT-FT/1K..27 27 28 30 31 32 34 35 35 33 30 28
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...9.6 7.7 5.9 7.8 9.7 12 11 11 10 9.2 8.1 7.1
FORECASTER...FT
REQUESTED BY...JOSH NIGRO
TYPE OF REQUEST...PRESCRIBED
.TAG 2612452.0/BOX
.DELDT 05/04/26
.FORMATTERVERSION 2.0.0
.EMAIL JOSH.NIGRO@MASS.GOV
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