405
FZUS61 KBUF 302102
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
402 PM EST Sun Nov 30 2025

SLZ022-010400-
Saint Lawrence River from Cape Vincent to Ogdensburg-
402 PM EST Sun Nov 30 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST MONDAY...

.TONIGHT...Southwest winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. Lake effect rain and snow early,
then lake effect rain showers and lake effect snow late this
evening. A chance of snow and rain showers after midnight.
.MONDAY...Northwest winds 5 to 15 knots becoming southwest less
than 10 knots. Becoming mostly sunny.
.MONDAY NIGHT...Light and variable winds becoming south 5 to
10 knots. A chance of snow showers overnight.
.TUESDAY...Southeast winds 10 knots or less becoming northeast.
Snow likely.
.TUESDAY NIGHT...North winds less than 10 knots. Mostly cloudy.
.WEDNESDAY...South winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. Snow showers.
.THURSDAY...West winds 10 to 15 knots diminishing to less than
10 knots. Snow showers during the day, then a chance of snow
showers Thursday night.
.FRIDAY...South winds 5 to 10 knots. A chance of snow showers.

$$

SLZ024-010400-
Saint Lawrence River from Ogdensburg to Saint Regis-
402 PM EST Sun Nov 30 2025

.TONIGHT...Southwest winds 15 to 20 knots becoming northwest.
Lake effect rain and snow showers likely early, then lake effect
snow with a chance of lake effect rain showers late this evening.
A chance of snow showers after midnight.
.MONDAY...Northwest winds 5 to 15 knots becoming west less than
10 knots. Partly sunny early, then becoming mostly sunny.
.MONDAY NIGHT...Light and variable winds. A chance of snow
showers overnight.
.TUESDAY...South winds less than 10 knots becoming northeast.
Snow likely in the morning, then a chance of snow showers in the
afternoon.
.TUESDAY NIGHT...Light and variable winds. Mostly cloudy.
.WEDNESDAY...Southwest winds 5 to 10 knots increasing to 15 to
20 knots. Snow showers.
.THURSDAY...West winds 15 to 20 knots diminishing to 5 to
15 knots. Snow showers during the day.
.FRIDAY...Southwest winds 5 to 10 knots becoming south. A chance
of snow showers.

$$