558
FNUS71 KBOX 091235
FWSBOX
SPOT FORECAST FOR SOUTHEAST PINE BARRENS WMA RX FIRE 4/9/2026...MASSWILDLIFE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
835 AM EDT THU APR 9 2026
FORECAST IS BASED ON IGNITION TIME OF 0930 EDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
LIGHT SOUTHEAST WINDS EARLY THIS MORNING BECOME SOUTH SOUTHEAST
AT 10 TO 15 MPH THIS AFTERNOON WITH A FEW GUSTS NEAR 20 MPH. HIGH
TEMPERATURES WILL TOP OUT IN THE LOWER 50S WITH MINIMUM AFTERNOON
RELATIVE HUMIDITY VALUES NEAR 30 PERCENT. RELATIVE HUMIDITY
VALUES WILL QUICKLY RECOVER EARLY THIS EVENING AS TEMPERATURES
DROP GIVEN THE DRY AIRMASS IN PLACE.
TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 52.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 12 MPH IN THE
LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......2700 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 2 TO 10 MPH SHIFTING TO THE SOUTH 13
TO 15 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO GOOD (30400 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........1 1 3 1 1 0 0 0 0
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0
TEMP............37 42 47 50 52 52 52 51 50
RH..............67 51 37 34 32 33 33 36 37
20 FT WIND DIR..SE S S S S S S S S
20 FT WIND SPD..5 6 8 9 10 12 12 12 12
20 FT WIND GUST.9 10 13 16 17 20 20 21 17
MIX HGT (KFT)...1.7 2.2 2.4 2.5 2.5 2.7 2.5 2.3 2.2
TRANSP WIND DIR.SE SE SE S S S S S S
TRANSP WIND SPD.6 7 9 9 10 13 14 15 15
VRATE KT-FT/1K..9 13 19 20 23 29 30 30 28
VENTRATE CAT....PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 33.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 10 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....SOUTH 10 TO 16 MPH.
SMOKE DISPERSAL.....FAIR (25000 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (4300 KNOT-FT) LATE IN THE
NIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........0 1 9 20 35 44
WEATHER COV..... PATCHY
WEATHER TYPE....NONE NONE NONE NONE NONE FOG
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............47 41 38 37 37 35
RH..............45 65 82 92 96 100
20 FT WIND......S 10 S 8 S 6 S 3 S 3 SW 3
20 FT WIND GUST.16 14 9 10 10 10
MIX HGT (FT)....1800 700 500 400 600 500
TRANSPORT WIND..S 16 S 13 S 12 S 12 SW 10 SW 10
VRATE KT-FT/1K..25 8 5 5 5 4
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY. PATCHY FOG EARLY IN THE MORNING.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 55.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 14 MPH INCREASING TO
AROUND 15 MPH WITH GUSTS TO AROUND 31 MPH LATE
IN THE AFTERNOON.
MIXING HEIGHT.......1800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 22 MPH INCREASING TO AROUND 23
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (6300 KNOT-FT) EARLY IN THE MORNING
INCREASING TO FAIR (29500 KNOT-FT) IN THE
AFTERNOON.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........44 35 31 24 16 17
WEATHER COV.....PATCHY PATCHY
WEATHER TYPE....FOG FOG NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............34 38 45 51 54 53
RH..............100 96 65 52 48 54
20 FT WIND......SW 5 SW 7 SW 10 SW 13 SW 15 SW 15
20 FT WIND GUST.12 14 17 21 26 31
MIX HGT (FT)....600 1000 1600 1800 1700 1600
TRANSPORT WIND..SW 13 SW 15 SW 16 SW 17 SW 18 SW 22
VRATE KT-FT/1K..6 13 22 26 27 30
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
FORECASTER...JWD
REQUESTED BY...ALEX ENTRUP
TYPE OF REQUEST...PRESCRIBED
.TAG 2609362.1/BOX
.DELDT 04/09/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEX.ENTRUP@MASS.GOV
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