• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
Alcatraz
 > Current Wind Graph
 > Meteogram
 > Onsite Report
 > Wind Yesterday
 > Last 7 Days
 > Wind Archive
 > Tides
 > Local Info
 > Sensor Notes
CA- sf north bay

Human Forecasts
 > Daily Briefing
 > Baja Guide
 > Forecast Blog

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary
 > Pressure Report

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map
 > Tidal Currents Map

More Maps

Other Resources

Watches/Warnings
>None Active




New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

Computer Model Data: 2/15 | 2/16 | 2/17 | 2/18 | 2/19 | 2/20 | 2/21   |  >>Wind Obs Map<<

Alcatraz Computer Forecast Table - Meteogram

Help us improve this product by taking the survey!

   Quick Look  
More Hours
 Beta-WRF 1km WF-WRF 3km - SF Bay NAM 12km GFS 0.5 Deg  Help
DateSunday, February 15Monday, February 16
Time 4pm7pm10pm1am4am7am10am1pm4pm7pm10pm
Wind (mph) 91074281215121219
Direction 
Temperature (F) 5656545451494949495149
Additional DataShow Additional Data
DateTuesday, February 17Wednesday, February 18
Time1am4am7am10am1pm4pm7pm10pm1am4am7am10am1pm4pm7pm10pm
Wind (mph)14122222211581212881012111011
Direction
Temperature (F)47485049505046444545464850504749
Additional DataShow Additional Data
DateThursday, February 19Friday, February 20
Time1am4am7am10am1pm4pm7pm10pm1am4am7am10am1pm4pm7pm10pm
Wind (mph)6464313141385453448
Direction
Temperature (F)46444245494946454241414549504849
Additional DataShow Additional Data
DateSaturday, February 21Sunday, February 22
Time1am4am7am10am1pm4pm7pm10pm1am4am7am10am1pm4pm7pm10pm
Wind (mph)111110666425757771010
Direction
Temperature (F)48484751545552515149475258585455
Additional DataShow Additional Data
DateMonday, February 23Tuesday, February 24
Time1am4am7am10am1pm4pm7pm10pm1am4am7am10am1pm4pm7pm10pm
Wind (mph)111517131197463346643
Direction
Temperature (F)53515152545455535352525557575452
Additional DataShow Additional Data
DateWednesday, February 25
Time1am4am7am10am 
Wind (mph)3362 
Direction 
Temperature (F)52515251 
Additional DataShow Additional Data

© Copyright 2026 WeatherFlow, Inc · Contact Us ·