iWindsurf.com - Wind Forecasts

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!

You can now check this website (global.iWindsurf.com) OR our classic website (www.iWindsurf.com). Both are 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
>Sea Surface Temps
>Swell Model Map

>Wind Cams

Watches/Warnings
>None Active

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

Human Meteorologist Forecasts: Today's Briefing Extended Discussion

Computer Model Data: 7/24 | 7/25 | 7/26 | 7/27 | 7/28 | 7/29 | 7/30 | >>Wind Obs Map<<

Alcatraz Computer Forecast Table - Meteogram

Help us improve this product by taking the survey!

Quick Look
More Hours

WRAMS 1km - San Francisco

WRAMS 8km - California

NAM 12km

GFS 0.5 Deg

Help

Date	Thursday, July 24								Friday, July 25
Time				11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)				1	9	11	7	5	5	4	3	4	8	9	6	6
Direction
Temperature (F)				65	70	72	68	63	61	60	61	67	72	73	69	64
Model	NAM 12km								NAM 12km
Model Run				07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z
Visibility (mi)				15	14	15	15	15	15	15	15	15	14	15	15	15
Precipitation (in)
Cloud Cover (%)					4								3
Pressure (mb)				1016	1014	1012	1011	1012	1012	1012	1012	1012	1012	1011	1011	1012
Additional Data	Show Additional Data
Date	Saturday, July 26								Sunday, July 27
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	6	6	7	9	11	12	9	8	4	3	3	4	9	10	6	5
Direction
Temperature (F)	61	60	61	64	65	65	62	59	61	59	65	75	81	77	68	62
Model	NAM 12km								GFS 0.5 Deg
Model Run	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z
Visibility (mi)	15	15	15	15	15	15	15	15
Precipitation (in)
Cloud Cover (%)			18	50	33	34	20	53
Pressure (mb)	1013	1013	1014	1015	1015	1014	1014	1015	1013	1012	1013	1014	1013	1012	1013	1013
Additional Data	Show Additional Data
Date	Monday, July 28								Tuesday, July 29
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	4	3	3	5	9	10	6	5	4	2	3	4	9	10	7	5
Direction
Temperature (F)	60	59	66	75	81	78	69	64	63	60	66	76	82	79	69	63
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1013	1013	1014	1015	1014	1013	1014	1015	1014	1014	1015	1015	1013	1012	1013	1013
Additional Data	Show Additional Data
Date	Wednesday, July 30								Thursday, July 31
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	5	4	3	4	10	10	7	6	5	4	4	6	9	10	7	6
Direction
Temperature (F)	62	60	66	76	82	77	68	62	60	58	63	72	78	75	66	60
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z	07/24 18z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1013	1013	1013	1013	1012	1012	1012	1012	1012	1012	1012	1013	1012	1011	1011	1012
Additional Data	Show Additional Data