856
FNUS71 KBOX 101055
FWSBOX
SPOT FORECAST FOR HALL TAVERN FARM...COLRAIN FIRE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
655 AM EDT SAT APR 10 2021
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON APRIL 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
HIGH PRESSURE BUILDS OFFSHORE TODAY. THIS WILL MAINTAIN DRY
WEATHER AND ABOVE NORMAL TEMPERATURES INLAND. A COLD FRONT DROPS
SOUTH THROUGH THE REGION TONIGHT, FOLLOWED BY EASTERLY WINDS AND
COLDER TEMPERATURES. SHOWERS ARE POSSIBLE LATE IN THE DAY.
MINIMUM RELATIVE HUMIDITIES TODAY WILL RANGE FROM 40 TO 45
PERCENT. MINIMUM RELATIVE HUMIDITIES ON SUNDAY WILL RANGE FROM 60
TO 65 PERCENT.
OUTLOOK...MONDAY THROUGH FRIDAY...
A SLOW MOVING OFFSHORE LOW PRESSURE AREA WILL MAINTAIN NEAR TO
BELOW SEASONABLE TEMPERATURES ON MONDAY. NEAR TO SLIGHTLY WARMER
THAN NORMAL TEMPERATURES ARE ANTICIPATED FOR THE REST OF THE WEEK.
SHOWERS ARE POSSIBLE MID TO LATE IN THE WEEK.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........40 PERCENT.
DEWPOINT............46 INCREASING TO 49 EARLY.
MAX APPARENT TEMP...74.
SURFACE WINDS.......LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH
THROUGH EARLY AFTERNOON.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH
THROUGH EARLY AFTERNOON.
MIXING HEIGHT.......400-2100 FT AGL INCREASING TO 4500-5000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 6 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (2500-32400 KNOT-FT).
LVORI...............3.
ADI.................10 INCREASING TO 45.
HAINES INDEX........3 VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED
FIRE GROWTH.
CEILING (KFT).......8.0 INCREASING TO 12, THEN INCREASING TO 15
EARLY DECREASING TO 9.0 EARLY IN THE AFTERNOON
INCREASING TO 10 DECREASING TO 8.0 LATE IN THE
AFTERNOON DECREASING TO 7.0 DECREASING TO 6.0
LATE IN THE AFTERNOON.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........17 23 25 28 31 34 37 40 40 40 40
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............49 52 56 59 63 66 70 70 72 72 74
DEWPOINT........45 45 47 48 50 49 49 48 48 48 48
RH..............86 77 72 67 62 54 47 45 42 42 40
HEAT INDEX (F)..49 52 56 59 63 66 70 70 72 72 74
20 FT WIND DIR..W W W W W W SW SW SW S S
20 FT WIND SPD..2 6 6 5 5 5 5 5 5 6 6
20 FT WIND GUST.3 8 8 7 7 7 7 7 7 9 9
SURFACE WND DIR.W W W W W W SW SW SW S S
SURFACE WND SPD.2 6 6 5 5 5 5 5 5 6 6
SURFACE WND GST.3 8 8 7 7 7 7 7 7 9 9
MIX HGT (KFT)...0.4 0.5 1.3 2.1 2.9 3.6 4.3 5.0 4.8 4.6 4.5
TRANSP WIND DIR.W W W W W W SW SW SW SW SW
TRANSP WIND SPD.7 8 7 7 6 6 7 7 8 8 9
LVORI...........5 4 3 3 3 2 2 1 1 1 1
ADI.............7 6 7 7 6 13 21 32 38 38 45
HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3
VRATE KT-FT/10003 4 4 4 4 9 17 23 28 28 32
CEILING (KFT)...8.0 8.0 8.0 12 15 9.0 9.0 10 8.0 7.0 6.0
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (60-70 PERCENT).
MIN TEMPERATURE.....AROUND 49.
MAX HUMIDITY........89 PERCENT.
MAX APPARENT TEMP...71.
SURFACE WINDS.......SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING BECOMING LIGHT.
MIXING HEIGHT.......1700-3100 FT AGL DECREASING TO 100-400 FT AGL
UNTIL JUST AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST 3 TO 9 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (200-22600 KNOT-FT).
HAINES INDEX........3 TO 6 OR VERY LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH TO HIGH POTENTIAL FOR
LARGE PLUME DOMINATED FIRE GROWTH.
CEILING (KFT).......11 INCREASING TO 15 EARLY IN THE EVENING, THEN
INCREASING TO 20 EARLY INCREASING TO 25 LATE IN
THE EVENING DECREASING TO 20 DECREASING TO 9.0
EARLY IN THE MORNING DECREASING TO 6.0
DECREASING TO 4.0 EARLY IN THE MORNING.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........33 27 20 22 37 41 44 47 50 57 65 72
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
TEMP............71 68 65 62 59 57 56 55 54 52 51 50
RH..............44 51 56 62 72 77 80 80 83 86 89 89
HEAT INDEX (F)..71 68 65 62 59 57 56 55 54 52 51 50
20 FT WIND DIR..SW SW SW SW SW SW SW SW W W N N
20 FT WIND SPD..5 5 3 2 2 2 2 2 2 2 2 2
20 FT WIND GUST.8 8 6 3 3 3 3 3 3 3 3 3
SURFACE WND DIR.SW SW SW SW SW SW SW SW W W N N
SURFACE WND SPD.5 5 3 2 2 2 2 2 2 2 2 2
SURFACE WND GST.8 8 6 3 3 3 3 3 3 3 3 3
MIX HGT (KFT)...3.1 1.7 0.4 0.3 0.2 0.2 0.2 0.1 0.1 0.1 0.2 0.2
TRANSP WIND DIR.SW SW SW SW S S S S S S SE E
TRANSP WIND SPD.9 8 8 7 5 3 3 3 3 3 3 3
HAINES INDEX....3 4 4 5 5 6 6 5 5 5 5 5
VRATE KT-FT/100023 11 3 2 1 0 0 0 0 0 1 1
CEILING (KFT)...11 15 20 25 25 25 20 20 20 9.0 6.0 4.0
SUNDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). AREAS OF FOG. SLIGHT
CHANCE OF LIGHT RAIN EARLY. CHANCE OF LIGHT
RAIN LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........72 PERCENT.
MAX APPARENT TEMP...57.
SURFACE WINDS.......LIGHT WINDS BECOMING EAST 5 TO 6 MPH IN THE
AFTERNOON.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......300-2100 FT AGL.
TRANSPORT WINDS.....EAST 6 TO 14 MPH.
SMOKE DISPERSAL.....POOR TO FAIR (1600-17600 KNOT-FT).
HAINES INDEX........4 TO 5 OR LOW POTENTIAL FOR LARGE PLUME
DOMINATED FIRE GROWTH TO MODERATE POTENTIAL FOR
LARGE PLUME DOMINATED FIRE GROWTH.
CEILING (KFT).......3.0 DECREASING TO 2.5 EARLY IN THE MORNING,
THEN DECREASING TO 1.5 EARLY DECREASING TO 1.0
LATE IN THE MORNING DECREASING TO 0.8
DECREASING TO 0.3 EARLY INCREASING TO 0.8.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........81 98 95 96 100 100
WEATHER COV..... AREAS S CHC S CHC CHANCE
WEATHER TYPE....NONE NONE FOG RAIN RAIN RAIN
TSTM COV........
TEMP............49 50 53 56 57 54
RH..............93 93 83 74 72 74
HEAT INDEX (F)..49 49 53 56 57 54
20 FT WIND......N 2 E 3 E 2 E 3 E 6 E 6
20 FT WIND GUST.3 5 3 5 9 9
SURFACE WIND....N 2 E 3 E 2 E 3 E 6 E 6
SURFACE WND GST.3 5 3 5 9 9
MIX HGT (FT)....300 500 1000 1500 2100 1600
TRANSPORT WIND..E 6 E 10 E 9 E 12 E 14 E 14
HAINES INDEX....5 5 5 5 4 4
VRATE KT-FT/10002 5 9 14 18 17
CEILING (KFT)...3.0 1.5 0.8 0.3 0.3 0.8
FORECASTER...WTB
REQUESTED BY...LT. KEVIN WORDEN II
TYPE OF REQUEST...PRESCRIBED
.TAG 2108528.0/BOX
.DELDT 04/10/21
.EMAIL 8MED5@LIVE.COM
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page