Johns Pass
Madeira Beach / Treasure Island · Gulf coast
Check Johns Pass nowNWS advisories, tides and ebb, sun and moon. Free, no sign-up.Current in the inlet
NOAA publishes current predictions for this inlet (Johns Pass Entrance, station JOP1101). The ebb sets toward 222° (southwest); typical peak ebb 1 kn, up to 1.9 kn at spring tides.
Ebb against swell on the bar
Swell and wind from the southwest meet the ebb head on: waves get shorter and steeper and can break on the bar. The same swell on the flood is usually far easier. The app compares the hour-by-hour current with the forecast waves and wind to rate each hour.
Bar depth used to estimate wave steepening: about 3 m (10 ft). Sandbars move: this is not a chart and never says where to cross.
Hour by hour, 48 hours ahead
The app rates every hour of the next 48 for Johns Pass: Lower risk, Caution, Hazardous or Extreme, with waves on the bar, wind, current and the inlet map. Free trial of Pro for 7 days.
Data for this inlet
- NWS marine forecast, zone GMZ853
- NOAA tide predictions: Johns Pass
- NOAA current predictions: Johns Pass Entrance
- NDBC buoy 42098 (waves, 25 km away)
- Wind observations: station SAPF1
- Airport weather: KPIE, KSPG