iWindsurf.com - Wind Forecasts

CLASSIC IWINDSURF

Hello Guest

��

kiter? see iKitesurf.com

We're curious: Are you a windsurfer or a kiter? I'm a windsurfer. I'm a kiter. I do both!

Classic iWindsurf is here to stay. Our new Wind & Weather tools are also available to you. More info

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
> Extended Disc.

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

>Radar
>Satellite
>General Weather
>Comfort Index
>Tidal Heights
>Water Temp
>Wind Obs + Gust

Other Resources

>Coastal Waters Forecast
>Surf Zone Forecast
>Sea Surface Temps
>Swell Model Map

Watches/Warnings
>None Active

Home : xt_USA : xt_California : CA- san francisco : CA- sf north bay : Alcatraz : Forecast Graphs

Human Meteorologist Forecasts: Tomorrow's Briefing Extended Discussion

Computer Model Data: 8/21 | 8/22 | 8/23 | 8/24 | 8/25 | 8/26 | 8/27 | >>Wind Obs Map<<

Alcatraz Computer Forecast Table - Meteogram

Help us improve this product by taking the survey!

Quick Look
More Hours

Date	Monday, August 21								Tuesday, August 22
Time						5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)						8	8	6	4	5	6	7	8	10	8	7
Direction
Temperature (F)						64	64	63	62	62	63	64	66	66	62	59
Model	NAM 12km								NAM 12km
Model Run						08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)						54	47	47	67	90	100	86	24	24	26	81
Pressure (mb)						1016	1016	1016	1016	1016	1017	1018	1017	1016	1016	1016
Additional Data	Show Additional Data
Date	Wednesday, August 23								Thursday, August 24
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	7	7	6	7	10	11	9	8	7	7	6	6	8	9	8	7
Direction
Temperature (F)	58	58	58	60	63	64	60	59	59	59	58	60	64	66	62	58
Model	NAM 12km								NAM 12km
Model Run	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)	100	100	100	100	70	55	80	100	100	100	100	100	79	51	63	100
Pressure (mb)	1016	1015	1016	1016	1015	1013	1013	1013	1012	1012	1012	1013	1012	1010	1010	1010
Additional Data	Show Additional Data
Date	Friday, August 25								Saturday, August 26
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	5	4	3	4	7	8	5	5	3	3	1	2	5	7	5	4
Direction
Temperature (F)	58	56	58	66	71	69	62	59	57	56	59	70	77	75	65	62
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1010	1010	1010	1011	1010	1009	1010	1011	1011	1011	1012	1012	1012	1011	1012	1013
Additional Data	Show Additional Data
Date	Sunday, August 27								Monday, August 28
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	3	2	1	2	6	7	5	3	4	3	2	3	6	8	6	4
Direction
Temperature (F)	60	59	62	74	81	78	69	64	63	62	64	75	80	77	67	63
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z	08/22 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1012	1012	1013	1013	1012	1010	1011	1012	1011	1011	1011	1011	1010	1009	1009	1010
Additional Data	Show Additional Data
Date	Tuesday, August 29
Time	2am	5am
Wind (mph)	4	4
Direction
Temperature (F)	61	60
Model	GFS 0.5 Deg
Model Run	08/22 00z	08/22 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1010	1010
Additional Data	Show Additional Data