Fire Weather Discussion
Fire Weather Planning Forecast for Southern New England
National Weather Service Boston/Norton MA
407 AM EDT Fri Sep 22 2023
.DISCUSSION...
High pressure moves to just south of Nova Scotia Friday, bringing
dry conditions and light winds. Rain spreads across the region
Saturday as a subtropical low moves to the mid atlantic coast.
Minimum relative humidities will range from 50 to 60 percent for
Friday and 65 to 85 percent from north to south for Saturday.
.OUTLOOK...Sunday through Tuesday...
Subtropical low will bring unsettled conditions for Sunday and
Monday, followed by a trend toward drier conditions for the
remainder of next week.
222100-
Southeast Middlesex MA-
Including the cities of Cambridge, Lexington, Newton, Waltham,
and Woburn
407 AM EDT Fri Sep 22 2023
Today Tonight Sat
Cloud Cover Pcldy Pcldy Cloudy
Precip Type None None Rain
Chance Precip (%) 80
Temp (24h trend) 70 (-3) 52 (+2) 62
RH % (24h trend) 55 (+13) 100 (0) 70
20ft Wnd AM(mph) Lgt/Var E 5
20ft Wnd PM(mph) E 6 Lgt/Var NE 7
Precip Amount 0.00 0.00 0.45
Precip Duration 4
Precip Begin 10 AM
Precip End Continuing
Mixing Hgt (ft-AGL) 4470 410 2200
Transport Wnd (kts) E 11 E 6 E 11
Vent Rate (kt-ft) 49170 2460 24200
Max ADI Early 42 Gen Good 20 Gen Poor 24 Fair
Max ADI Late 55 Gen Good 5 Very Poor 26 Fair
Max LVORI Early 1 6 4
Max LVORI Late 1 6 4
Min Vsby Early
Min Vsby Late
Sunshine Hours N/A N/A N/A
CWR 0 0 100
LAL No Tstms No Tstms No Tstms
Haines Index 3 4 4
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.SATURDAY NIGHT...Rain. Lows in the mid 50s. Northeast winds 5 to
10 mph.
.SUNDAY...Cloudy with a chance of showers. Highs in the mid 60s.
Northeast winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with showers likely. Lows in the
mid 50s. Northeast winds around 10 mph.
.MONDAY AND MONDAY NIGHT...Mostly cloudy with a chance of
showers. Lows in the mid 50s. Highs in the mid 60s. Northeast
winds 10 to 15 mph.
.TUESDAY...Partly sunny. Highs in the lower 60s. Northeast winds
around 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows in the
lower 50s. Highs in the upper 60s. Northeast winds 5 to 10 mph.