945
FZUS61 KBUF 302003
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
403 PM EDT Tue Jun 30 2026

SLZ022-024-010300-
Saint Lawrence River from Cape Vincent to Saint Regis
403 PM EDT Tue Jun 30 2026

...SEVERE THUNDERSTORM WATCH 423 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

.TONIGHT...Southwest winds 5 to 10 knots. A chance of showers and
thunderstorms early. A chance of showers late. Some thunderstorms
may be severe with strong winds and large hail early.
.WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers
early.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less. Partly
cloudy.
.THURSDAY...Southwest winds 5 to 15 knots. Showers likely with a
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots diminishing to
less than 10 knots. Showers likely with a chance of thunderstorms
in the evening, then a chance of showers overnight.
.FRIDAY...Southwest winds 10 knots or less. A chance of showers.
.SATURDAY...West winds less than 10 knots. A chance of showers
and thunderstorms.
.SUNDAY...Light and variable winds. A chance of showers Sunday
night.

Winds and waves higher in and near thunderstorms.

$$