BOX issues Area Forecast Discussion (AFD) at Sep 14, 1:34 PM EDT406
FXUS61 KBOX 141734
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
134 PM EDT Mon Sep 14 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- Dry with below normal temperatures through Tuesday night.
- Above normal temps return Wed through the end of the week with
high temps mainly in the 70s to near 80. A few showers possible
sometime late Thu into early Fri...But dry weather dominates.
&&
.DISCUSSION...
KEY MESSAGE 1...Dry with below normal temperatures through
Tuesday night.
A large high pressure arrives from the west tonight. Gusty winds
subside around sunset, then become light and variable late this
evening. Expecting decent radiational cooling conditions,
leading to low temperatures about 5-10 degrees below normal. The
cooler conditions continue into Tuesday night with light E to SE
winds. This high pressure should be over the North Atlantic
Tuesday night, shifting winds more from the S to SW.
KEY MESSAGE 2...Above normal temps return Wed through the end of the
week with high temps mainly in the 70s to near 80. A few showers
possible sometime late Thu into early Fri...But dry weather
dominates.
Upper trough shifts east of the region allowing warmer mid level air
to advect in from the west. This will bring a return to above normal
temperatures in the Wed through Fri time frame. High temperatures
will be mainly in the 70s to near 80. A shortwave/cold front may
bring a few showers to the region sometime late Thu into early Fri.
However...a dry/tranquil weather pattern will dominate most of the
week.
&&
.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through 00Z...High confidence.
VFR with gusty NW to N winds. Gusts up to 25 kt. Winds diminish
toward sunset.
Tonight...High confidence.
Winds becoming calm/light from a N direction except N-NE at 5
to 15 knots along the immediate coast, Cape and Islands.
Tuesday...High confidence.
VFR. NE to E winds 5-10 kt becoming S to SE along portions of
the immediate coast.
Tuesday night...High confidence.
VFR. Winds becoming light S to SW.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday through Saturday/...
Wednesday through Wednesday Night: VFR.
Thursday: Mainly VFR, with local MVFR possible. Chance SHRA.
Thursday Night: VFR. Chance SHRA.
Friday through Friday Night: VFR.
Saturday: VFR. Slight chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
High pressure moves over the waters late Tuesday, then offshore
Tuesday night. Gusty NW to N winds diminish towards sunset
tonight. Expecting relatively light winds and seas through
Tuesday night. Marginal Small Craft Advisory conditions will end
later this afternoon. The existing headlines may be canceled
early. Will continue to monitor through this afternoon.
Outlook /Wednesday through Saturday/...
Wednesday through Thursday: Winds less than 25 kt.
Thursday Night: Winds less than 25 kt. Chance of rain showers.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain showers.
Friday Night: Winds less than 25 kt. Seas locally approaching
5 ft.
Saturday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 AM EDT Tuesday for ANZ231>235-237-
250-254>256.
&&
$$
DISCUSSION...Belk/Hrencecin
AVIATION...Belk/Hrencecin
MARINE...Belk/Hrencecin
Source:
BOX issues Area Forecast Discussion (AFD) at Sep 14, 1:34 PM EDT----------------
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