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Johns Island, Chassahowitzka Bay, FL tide chart and marine alerts

NOAA station 8727235 · 28.692°N, 82.638°W. Get an email only when the NWS issues a marine or coastal alert here, or the tide runs unusually high or low.

NOAA station 8727235

Johns Island, Chassahowitzka Bay, FL

Tide now1.9 ft↑ rising · predicted

Next high4:01 AM2.6 ft

Next low1:06 PM0.0 ft

No active NWS marine or coastal alerts here

Times EST · NOAA source

Today and tomorrow

Next 7 days Shape drawn between NOAA's predicted highs and lows

7-day tides, sun and moon Times EST · feet above MLLW

Day	High tides	Low tides	Sunrise Sunset	Moon
Fri, Nov 13	4:01 AM 2.7 ft6:26 PM 1.4 ft	1:06 PM 0.0 ft11:23 PM 0.7 ft	6:51 AM 5:38 PM	Waxing crescent 18%
Sat, Nov 14	4:46 AM 2.6 ft7:12 PM 1.4 ft	1:43 PM 0.1 ft	6:52 AM 5:38 PM	Waxing crescent 25%
Sun, Nov 15	5:38 AM 2.4 ft8:03 PM 1.4 ft	12:16 AM 0.6 ft2:25 PM 0.2 ft	6:53 AM 5:37 PM	Waxing crescent 34%
Mon, Nov 16	6:39 AM 2.2 ft8:56 PM 1.5 ft	1:12 AM 0.5 ft3:11 PM 0.3 ft	6:53 AM 5:37 PM	Waxing crescent 43%
Tue, Nov 17	7:49 AM 2.0 ft9:45 PM 1.7 ft	2:15 AM 0.5 ft3:56 PM 0.3 ft	6:54 AM 5:36 PM	First quarter 53%
Wed, Nov 18	9:05 AM 1.9 ft10:30 PM 1.8 ft	3:25 AM 0.5 ft4:37 PM 0.3 ft	6:55 AM 5:36 PM	Waxing gibbous 63%
Thu, Nov 19	10:24 AM 1.7 ft11:09 PM 2.0 ft	4:43 AM 0.5 ft5:15 PM 0.3 ft	6:56 AM 5:36 PM	Waxing gibbous 73%

Tides: NOAA CO-OPS predictions. Sun and moon: computed for this station's coordinates with NOAA's solar equations and standard lunar formulas.

Today Friday, Nov 13

Tide	Time (EST)	Height
High	4:01 AM	2.7 ft
Low	1:06 PM	0.0 ft
High	6:26 PM	1.4 ft
Low	11:23 PM	0.7 ft

Tomorrow Saturday, Nov 14

Tide	Time (EST)	Height
High	4:46 AM	2.6 ft
Low	1:43 PM	0.1 ft
High	7:12 PM	1.4 ft

Sunday Sunday, Nov 15

Tide	Time (EST)	Height
Low	12:16 AM	0.6 ft
High	5:38 AM	2.4 ft
Low	2:25 PM	0.2 ft
High	8:03 PM	1.4 ft

Active NWS alerts

No active NWS marine or coastal alerts cover this station right now (checked 1:52 AM EST).

Marine forecast GMZ850 · Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM

Tonight: West winds 10 to 15 knots, becoming northwest 15 to 20 knots late this evening and early morning, then becoming north 10 to 15 knots late. Seas 2 to 3 feet. Wave Detail: Northwest 3 feet at 4 seconds. Bay and inland waters choppy. A slight chance of showers late this evening.
Friday: North winds 10 to 15 knots, becoming northwest with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: Northwest 2 feet at 4 seconds. Bay and inland waters a moderate chop.
Friday Night: Northwest winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest 3 feet at 4 seconds. Bay and inland waters choppy.
Saturday: North winds 10 to 15 knots. Seas 2 to 3 feet. Wave Detail: North 3 feet at 4 seconds and north 1 foot at 3 seconds. Bay and inland waters a moderate chop.
Saturday Night: Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 1 foot at 3 seconds and northwest 1 foot at 4 seconds. Bay and inland waters a moderate chop.
Sunday: Northeast winds 10 to 15 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at 3 seconds and north 1 foot at 5 seconds. Bay and inland waters a moderate chop.
Sunday Night: Northeast winds 15 to 20 knots. Seas 2 to 3 feet. Bay and inland waters choppy.
Monday: Northeast winds 15 to 20 knots. Seas 2 to 3 feet. Bay and inland waters choppy.
Monday Night: Northeast winds 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Seas 2 to 3 feet. Bay and inland waters rough.
Tuesday: Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Bay and inland waters rough. Isolated showers in the afternoon.

National Weather Service, issued Thu 7:46 PM EST. Official forecast for GMZ850

Unusual tides here

We flag a predicted high at or above 4.0 ft MLLW (0.5 m above mean higher high water (MHHW), NOAA's national proxy for minor high-tide flooding, because NOAA lists no station threshold). We flag a predicted low at or below −1.0 ft MLLW. Mean higher high water is 2.4 ft.

No predicted tide in the next few days crosses either line.

Official sources

Predictions are astronomical tides. Wind and pressure can move the real water level a foot or more.

Nearby stations

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Johns Island, Chassahowitzka Bay, FL: common questions

When is the next high tide at Johns Island, Chassahowitzka Bay, FL?

NOAA predicts the next high tide at Johns Island, Chassahowitzka Bay, FL at Fri 4:01 AM EST, 2.6 ft above mean lower low water (MLLW).

When is the next low tide at Johns Island, Chassahowitzka Bay, FL?

The next predicted low tide is at Fri 1:06 PM EST, 0.0 ft relative to MLLW.

Is there a marine alert for Johns Island, Chassahowitzka Bay, FL right now?

No. When this page was built, no NWS marine or coastal alert covered this station.

What are these tide heights measured from?

Heights are in feet above mean lower low water (MLLW), the average of the lower of the two daily low tides. A negative number means the water is below that average.

How do I get an email when something happens at Johns Island, Chassahowitzka Bay, FL?

Enter your email at the top of this page. You get one confirmation email, then nothing until the NWS issues a marine or coastal alert here or the tide is predicted unusually high or low. Unsubscribe in one click.