Suppression Forecast
Issued by NWS Boston, MA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5
007
FNUS71 KBOX 210828
FWSBOX

SPOT FORECAST FOR FCN UNIT 10...MASS. DIV. OF FISH&WILDLIFE
NATIONAL WEATHER SERVICE TAUNTON MA
428 AM EDT THU MAY 21 2015

FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON MAY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MINIMUM RELATIVE HUMIDITY VALUES WILL RANGE AROUND 30 PERCENT OR
LOWER THROUGH THE WEEKEND...THE LOWEST ON SATURDAY WITH VALUES
AROUND 20 PERCENT.

RAIN IS LIKELY ACROSS SOUTH COASTAL MASSACHUSETTS AND RHODE
ISLAND...HOWEVER RAIN MAY SPREAD AS FAR NORTH AS THE MASSACHUSETTS
TURNPIKE. RAINFALL AMOUNTS WILL BE THE GREATEST ACROSS THE CAPE
AND ISLANDS POTENTIALLY IN EXCESS OF HALF AN INCH. SCATTERED
SHOWERS AND AN ISOLATED THUNDERSTORM IS POSSIBLE LATE FRIDAY
AFTERNOON AND EARLY EVENING.

BREEZY SW-WINDS TODAY WITH GUSTS UP TO 25 MPH WILL BACK OUT OF THE
NW WITH A COLD FRONTAL PASSAGE LATE FRIDAY BEHIND WHICH GUSTS UP
TO 30 MPH ALONG THE COAST ARE EXPECTED INTO FRIDAY NIGHT. THERE
IS A CHANCE OF A SEA-BREEZE ALONG THE EASTERN MASSACHUSETTS COAST
ON BOTH THURSDAY AND FRIDAY.

FROM THIS DISCUSSION...THERE IS AN ELEVATED FIRE WEATHER POTENTIAL
ON SATURDAY WITH THE COMBINATION OF DRY CONDITIONS AND BREEZY NW
WINDS.

OUTLOOK...SUNDAY THROUGH TUESDAY...

MINIMUM RELATIVE HUMIDITY VALUES ARE FORECAST TO REMAIN AROUND OR
ABOVE 50-PERCENT AS SOUTHWEST FLOW USHERS WARM AND MOIST AIR N AND
THERE REMAINS A DAILY CHANCE OF WET-WEATHER. WINDS OUT OF THE SW
MAY BE GUSTY AT TIMES UP TO 20 MPH PRESENTLY FORECAST.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 64.
MIN HUMIDITY........41 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......1100-2800 FT AGL...INCREASING TO 3000-4100 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 5 TO 14 MPH...INCREASING TO 16 TO 17
                    MPH LATE.
SMOKE DISPERSAL.....POOR TO GOOD (5600-44200 KNOT-FT)...INCREASING
                    TO GOOD TO GOOD (44900-58000 KNOT-FT) LATE.

TIME (EDT)          12P 1PM 2PM 3PM 4PM 5PM
SKY (%).............42  43  43  47  51  55
WEATHER COV.........
WEATHER TYPE........
TSTM COV............
TEMP................60  61  62  62  61  60
RH..................44  42  41  43  44  47
20 FT WIND DIR......SW  SW  SW  SW  SW  SW
20 FT WIND SPD......10  12  14  14  14  15
20 FT WIND GUST.....15  15  20  20  20  20
MIX HGT (KFT).......3.2 3.7 4.1 3.8 3.4 3.0
TRANSP WIND DIR.....W   SW  SW  SW  SW  SW
TRANSP WIND SPD.....13  14  16  16  17  17
LVORI...............1   1   1   1   1   1
ADI.................42  37  45  43  44  41
VRATE KT-FT/1000....36  44  58  53  51  45

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN EARLY IN
                    THE EVENING. A CHANCE OF RAIN LATE IN THE
                    EVENING...THEN RAIN LIKELY AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 9 TO 14 MPH UNTIL JUST AFTER
                    MIDNIGHT...BECOMING LIGHT AND VARIABLE.
MIXING HEIGHT.......1300-2600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 9 TO 18 MPH...BECOMING WEST AROUND 8
                    MPH LATE.
SMOKE DISPERSAL.....POOR TO GOOD (9400-39100 KNOT-FT).

TIME (EDT)          6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).............59  62  66  71  75  80  84  88  93  92  91  90
WEATHER COV.........    SCH SCH CHC CHC CHC CHC LKY LKY LKY LKY LKY
WEATHER TYPE........    RN  RN  RN  RN  RN  RN  RN  RN  RN  RN  RN
TSTM COV............
TEMP................59  57  56  55  54  52  51  50  50  50  50  50
RH..................51  55  59  64  69  77  80  86  89  89  89  89
20 FT WIND DIR......SW  SW  SW  SW  SW  SW  SW  SW  SW  W   NW  N
20 FT WIND SPD......14  14  13  12  10  9   7   5   2   3   3   3
20 FT WIND GUST.....20  20  20  20  15  15  15  10  10  10  10  5
MIX HGT (KFT).......2.6 2.2 1.8 1.7 1.7 1.6 1.5 1.4 1.3 1.3 1.3 1.4
TRANSP WIND DIR.....SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  W   W
TRANSP WIND SPD.....17  18  18  17  15  14  13  10  9   9   8   8
LVORI...............1   1   2   2   3   4   4   5   6   6   6   6
ADI.................38  38  21  19  17  15  8   7   4   4   4   4
VRATE KT-FT/1000....39  36  29  26  22  19  16  12  10  11  9   10

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY. A CHANCE OF RAIN IN THE
                    MORNING...THEN SCATTERED SHOWERS IN THE
                    AFTERNOON. A SLIGHT CHANCE OF THUNDERSTORMS
                    LATE.
MAX TEMPERATURE.....AROUND 66.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH...BECOMING SOUTHWEST
                    10 TO 15 MPH IN THE AFTERNOON.
MIXING HEIGHT.......1400-3000 FT AGL...INCREASING TO 2000-3700 FT
                    AGL IN THE AFTERNOON.
TRANSPORT WINDS.....WEST 6 TO 13 MPH.
SMOKE DISPERSAL.....POOR TO GOOD (7300-33600 KNOT-FT).

TIME (EDT)          6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).............88  87  86  77  68  59  51  51  51  51  52  52
WEATHER COV.........CHC CHC CHC CHC CHC CHC SCT SCT SCT SCT SCT SCT
WEATHER TYPE........RN  RN  RN  RN  RN  RN  RW  RW  RW  RW  RW  RW
TSTM COV............                                SCH SCH SCH SCH
TEMP................51  52  53  55  57  60  62  64  65  65  64  63
RH..................86  83  80  74  67  60  56  50  48  48  48  50
20 FT WIND DIR......N   N   N   N   N   N   NW  W   SW  SW  SW  SW
20 FT WIND SPD......5   7   8   8   7   7   8   8   9   10  13  15
20 FT WIND GUST.....                10  10  10  10  10  15  15
MIX HGT (KFT).......1.4 1.4 1.5 1.8 2.2 2.6 3.0 3.4 3.7 3.2 2.6 2.0
TRANSP WIND DIR.....W   NW  NW  NW  W   W   W   W   W   W   W   W
TRANSP WIND SPD.....7   7   6   7   7   8   9   9   10  12  12  13
LVORI...............5   4   4   3   3   2   2   1   1   1   2   2
ADI.................11  11  9   13  14  18  29  31  37  38  25  24
VRATE KT-FT/1000....8   9   7   11  13  18  24  27  34  32  26  22

$$
FORECASTER...NOCERA
REQUESTED BY...DANIEL FORTIER
TYPE OF REQUEST...PRESCRIBED
.TAG 20150521.FCNUN.01/BOX



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.