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029
FNUS71 KBOX 030659
FWSBOX

Spot Forecast for Herman Covey WMA Woodlands Rx Burn...MassWildlife
National Weather Service Boston/Norton MA
259 AM EDT Fri May 3 2024

Forecast is based on ignition time of 0500 EDT on May 03.
If conditions become unrepresentative, contact the National
Weather Service.


.DISCUSSION...

EASTERN HAMPSHIRE COUNTY

Steady 5 to 10 knot winds out of the northeast through about
noon-2pm today. Thereafter, winds will take on a more easterly
wind direction, but continue to remain at modest speeds less than
10 knots. Not expecting any higher gusts. The flow off the ocean
and associated cooler temperatures should support higher RH. MinRH
across eastern Hampshire County could get as low as 40 to 45 perecent.


Wednesday...

Increasing clouds with solid chances for rains and cooler
temperatures on Sunday into Sunday evening. High pressure then
brings dry and seasonable weather early next week, with our next
chance for rains after Sunday not appearing until Wednesday.


.TODAY...

Sky/weather.........Mostly cloudy then becoming mostly sunny.
CWR.................0 percent.
Max temperature.....Around 65.
Min humidity........48 percent.
Dewpoint............43.
Max apparent temp...63.
Surface winds (mph).Northeast winds 6 to 7 mph shifting to the east
                    late in the afternoon.
Wind (20 ft)........Northeast winds around 7 mph shifting to the
                    east 6 to 7 mph late in the afternoon.
Mixing height.......4600 ft AGL.
Transport winds.....East 8 to 12 mph.
Smoke dispersal.....Fair (13400 knot-ft) early in the morning
                    increasing to good (32300 knot-ft) in the
                    afternoon.
LVORI...............3.
ADI.................20 to 29 increasing to 41 to 42.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
CEILING (KFT).......1.2 increasing to 9.1.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........56  65  84  84  75  73  69  63  57  58  48  50
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............46  47  48  50  52  55  58  61  62  63  63  63
Dewpoint........43  43  43  43  43  43  43  43  43  43  43  43
RH..............89  86  83  77  71  64  57  51  50  48  48  48
Heat index (F)..42  44  45  47  52  55  58  61  62  63  63  63
20 FT wind dir..NE  NE  NE  NE  E   E   E   E   E   E   E   E
20 FT wind spd..7   7   7   7   7   6   6   6   7   7   7   6
20 FT wind gust.14  14  14  13  13  12  12  12  12  10  10  9
Surface wnd dir.NE  NE  NE  NE  E   E   E   E   E   E   E   E
Surface wnd spd.7   7   7   7   7   6   6   6   7   7   7   6
Surface wnd gst.14  14  14  13  13  12  12  12  12  10  10  9
Mix hgt (kft)...1.3 1.6 1.9 2.4 2.9 3.4 3.8 4.2 4.6 4.5 4.3 4.1
Transp wind dir.NE  NE  NE  E   E   E   E   E   E   E   E   E
Transp wind spd.12  12  12  10  10  9   9   8   8   8   8   8
LVORI...........4   4   3   3   3   1   1   1   1   1   1   1
ADI.............20  24  28  29  33  32  33  31  32  32  41  42
Haines index....3   3   3   3   3   3   3   3   3   3   3   3
Vrate kt-ft/1K..13  16  19  22  26  27  30  29  32  31  30  29
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR
Ceiling (kft)...1.2 1.2 1.2 1.3 1.8 2.7 4.7 5.0 5.3 7.5 9.1 9.4

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy then
                    becoming partly cloudy then becoming mostly
                    cloudy. Patchy fog early in the morning.
CWR.................0 percent.
Min temperature.....Around 43.
Max humidity........93 percent.
Dewpoint............42.
Max apparent temp...62.
Surface winds (mph).Southeast winds 5 to 6 mph becoming light.
Wind (20 ft)........East winds 5 to 6 mph becoming light.
Mixing height.......100 ft AGL.
Transport winds.....Southeast 2 to 7 mph.
Smoke dispersal.....Fair (17800 knot-ft) early in the evening
                    decreasing to poor (300 knot-ft) late in the
                    night.
LVORI...............5.
ADI.................26 decreasing to 1 to 4.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
CEILING (KFT).......21 increasing to 24 in the evening, then
                    decreasing to 21 decreasing to 16 around
                    midnight increasing to 19 decreasing to 16
                    early in the morning decreasing to 13
                    decreasing to 11 early in the morning.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........45     53     64     41     41     37
Weather cov.....                                   PATCHY
Weather type....NONE   NONE   NONE   NONE   NONE   FOG
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............62     57     52     49     46     44
Dewpoint........43     43     42     41     42     41
RH..............50     59     69     74     86     89
Heat index (F)..62     57     52     48     46     44
20 ft wind......E 6    SE 6   SE 5   SE 3   SE 1   E 2
20 ft wind gust.10     10     9      6      5      5
Surface wind....E 6    SE 6   SE 5   SE 3   SE 1   E 2
Surface wnd gst.10     10     9      6      5      5
Mix hgt (ft)....3000   600    400    200    200    100
Transport wind..E 7    E 6    SE 5   SE 3   SE 2   E 2
LVORI...........2      3      3      3      5      7
ADI.............26     4      3      2      1      1
Haines index....3      3      3      3      3      4
Vrate kt-ft/1K..18     3      2      1      0      0
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR
Ceiling (kft)...21     24     21     17     19     13

.SATURDAY...

Sky/weather.........Partly sunny. Patchy fog early in the morning.
CWR.................0 percent.
Max temperature.....Around 66.
Min humidity........48 percent.
Dewpoint............43.
Max apparent temp...64.
Surface winds (mph).Light winds becoming east 5 to 8 mph early.
Wind (20 ft)........East winds 5 to 8 mph early in the morning
                    becoming light, then becoming east 5 to 8 mph
                    early.
Mixing height.......4700 ft AGL.
Transport winds.....East 3 to 10 mph.
Smoke dispersal.....Poor (1500 knot-ft) early in the morning
                    increasing to good (39000 knot-ft) in the
                    afternoon.
LVORI...............4.
ADI.................4 to 7 increasing to 36 to 40.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.
CEILING (KFT).......9.7 decreasing to 5.3.

TIME (EDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........56        49        56        62
Weather cov.....PATCHY
Weather type....FOG       NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Temp............44        54        61        64
Dewpoint........42        43        44        44
RH..............93        66        53        48
Heat index (F)..44        54        61        64
20 FT wind......E 2G5     E 2G6     E 6G9     E 7G10
Surface wind....E 2G5     E 2G6     E 6G9     E 7G10
Mix hgt (ft)....500       2100      4100      4600
Transport wind..E 3       E 6       E 7       E 9
LVORI...........6         3         2         1
ADI.............4         15        26        37
Haines index....4         3         4         3
Vrate kt-ft/1K..2         10        25        37
Ventrate Cat....POOR      POOR      POOR      POOR
Ceiling (kft)...9.7       7.4       6.1       5.3

$$
Forecaster...RM
Requested by...Alex Entrup
Type of request...PRESCRIBED
.TAG 2413000.0/BOX
.DELDT 05/03/24
.FormatterVersion 2.0.0
.EMAIL alex.entrup@mass.gov