NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
National Weather Service Marine Forecast FZUS63 KDTX
FZUS63 KDTX 161937
GLFSC
Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
337 PM EDT Fri May 16 2025
Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum.
SYNOPSIS
Low pressure tracks slowly over the upper Midwest
today before reaching Lake Superior on Saturday at around 29.30
inches. This sends a cold front through the area tonight. A line
of showers and storms is expected ahead of this front with
isolated severe storms possible. Low departs Sunday as weak high
pressure, 29.90 inches, builds in.
LCZ460-170345
Lake St Clair
337 PM EDT Fri May 16 2025
SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING
TONIGHT
Southeast winds 10 to 15 knots becoming south 15 to 20
knots in the late evening and early morning...then becoming
southwest 10 to 15 knots early in the morning. Partly cloudy with a
chance of showers and thunderstorms in the evening...then mostly
cloudy with a chance of thunderstorms after midnight. Waves 1 to 3
feet.
SATURDAY
Southwest winds 10 to 15 knots becoming west 15 to 20
knots with gusts to 30 knots in the late morning and afternoon.
Partly sunny with a chance of light showers. Waves 1 to 3 feet.
SATURDAY NIGHT
West winds 15 to 20 knots with gusts to 30 knots
diminishing to 10 to 15 knots after midnight. Partly cloudy. Waves 1
to 3 feet.
SUNDAY
Northwest winds 10 to 15 knots diminishing to 5 to 10
knots early in the afternoon. Partly sunny. Waves 2 feet or less.
SUNDAY NIGHT
North winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. Partly cloudy. Waves 2 feet or less.
MONDAY
North winds 10 to 15 knots. Partly sunny becoming mostly
clear. Waves 2 feet or less.
TUESDAY
Northeast winds 15 to 20 knots. Partly cloudy. A chance
of showers. Waves 1 to 3 feet.
WEDNESDAY
North winds 15 to 20 knots. Partly cloudy. Showers
likely. Waves 1 to 3 feet.
KDK
Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc
Graphical marine forecasts are available at weather.gov/greatlakes