Tides in Florida

Mile Point LB 20 tidal current predictions

FloridaNear Atlantic Beach, Duval CountyNOAA jx0302Harmonic current station11 ft deep

Slack water now. Maximum flood 2.7 kt at 7:32 AM.

Now

Today, Sat, Sep 26, at 11 ft deep.

Now
SlackTurning
Next slack
10:37 AMEDT
Next max flood
2.7 kt7:32 AM
Next max ebb
3.0 kt1:13 PM
-3-2-1012312 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM12 AMSlackNow

Knots along the channel: above the line the flood, running in toward SSW (203°); below it the ebb, running out toward NE (36°). Times are Eastern Daylight Time. Today: ebb 2.8 kt 12:52 AM, slack 5:01 AM, flood 2.7 kt 7:32 AM, slack 10:37 AM, ebb 3.0 kt 1:13 PM, slack 5:22 PM, flood 2.7 kt 7:54 PM, slack 10:55 PM.

Alerts in force1

National Weather Service marine and coastal products at this station’s position.

  • Small Craft Advisory Small Craft Advisory issued September 26 at 12:12AM EDT until September 26 at 10:00AM EDT by NWS Jacksonville FLUntil 10:00 AM
    Full text

    * WHAT...Seas 5 to 8 ft. * WHERE...Northeast Florida coastal waters from Fernandina Beach FL to Flagler Beach FL out to 20 NM. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft.

    Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.

7-day current table

Strongest flood this week 3.2 kt, Tue, Sep 29 at 9:55 AM. Strongest ebb 3.3 kt, Tue, Sep 29 at 3:00 AM.

Slack water and maximum currents at Mile Point LB 20, Eastern Daylight Time; knots, and the direction the water runs toward.
TimeEventSpeedToward
Sat, Sep 26
12:52 AMMaximum ebb2.8 ktNE (36°)
5:01 AMSlack water
7:32 AMMaximum flood2.7 ktSSW (203°)
10:37 AMSlack water
1:13 PMMaximum ebb3.0 ktNE (36°)
5:22 PMSlack water
7:54 PMMaximum flood2.7 ktSSW (203°)
10:55 PMSlack water
Sun, Sep 27
1:31 AMMaximum ebb3.1 ktNE (36°)
5:37 AMSlack water
8:17 AMMaximum flood2.9 ktSSW (203°)
11:24 AMSlack water
1:58 PMMaximum ebb3.1 ktNE (36°)
6:09 PMSlack water
8:42 PMMaximum flood2.6 ktSSW (203°)
11:36 PMSlack water
Mon, Sep 28
2:14 AMMaximum ebb3.3 ktNE (36°)
6:15 AMSlack water
9:05 AMMaximum flood3.1 ktSSW (203°)
12:12 PMSlack water
2:45 PMMaximum ebb3.1 ktNE (36°)
7:00 PMSlack water
9:32 PMMaximum flood2.5 ktSSW (203°)
Tue, Sep 29
12:19 AMSlack water
3:00 AMMaximum ebb3.3 ktNE (36°)
6:57 AMSlack water
9:55 AMMaximum flood3.2 ktSSW (203°)
1:03 PMSlack water
3:35 PMMaximum ebb3.1 ktNE (36°)
7:56 PMSlack water
10:24 PMMaximum flood2.4 ktSSW (203°)
Wed, Sep 30
1:06 AMSlack water
3:48 AMMaximum ebb3.3 ktNE (36°)
7:46 AMSlack water
10:47 AMMaximum flood3.2 ktSSW (203°)
1:57 PMSlack water
4:26 PMMaximum ebb2.9 ktNE (36°)
8:58 PMSlack water
11:18 PMMaximum flood2.2 ktSSW (203°)
Thu, Oct 1
1:59 AMSlack water
4:39 AMMaximum ebb3.2 ktNE (36°)
8:42 AMSlack water
11:40 AMMaximum flood3.0 ktSSW (203°)
2:55 PMSlack water
5:19 PMMaximum ebb2.7 ktNE (36°)
10:02 PMSlack water
Fri, Oct 2
12:15 AMMaximum flood2.0 ktSSW (203°)
2:59 AMSlack water
5:33 AMMaximum ebb2.9 ktNE (36°)
9:46 AMSlack water
12:37 PMMaximum flood2.8 ktSSW (203°)
3:56 PMSlack water
6:21 PMMaximum ebb2.4 ktNE (36°)
11:07 PMSlack water

Other depths

NOAA predicts the current at more than one depth here. This page is for the shallowest; the water deeper down turns at different times and runs at different speeds.

DepthStrongest flood todayStrongest ebb today
11 ft2.7 kt 7:32 AM3.0 kt 1:13 PM
17 ft2.1 kt 7:44 AM2.4 kt 1:29 PM
27 ft1.9 kt 7:47 AM2.1 kt 1:16 PM

What this means

The flood is the tidal current running in from the sea, the ebb the current running back out. Slack water is the short turn between them, when the current is weakest: the time to cross a strong channel, anchor, or dive. Slack in a channel is not the time of high or low tide; it can come hours after.

Speeds are knots along the channel's main axis, and directions are degrees true toward which the water flows, as NOAA prints its tables. A current against the wind stands the waves up steep and close together.

Predictions are astronomical: the moon and the sun, not the weather. Strong wind, river flow after heavy rain and storm surge all change the real current.

Nearby8

The closest other NOAA current stations, nearest first.

More for this place

Sources

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station jx0302, bin 1: original at NOAA. Marine alerts from the National Weather Service.