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!

NOTICE: With a massive blizzard impacting the Northeast, we anticipate our server location there to lose power. If so, several stations in our network will appear offline. We apologize in advance for this and we’ll do all we can to keep any outages to a minimum.

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

>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

Computer Model Data: 1/29 | 1/30 | 1/31 | 2/01 | 2/02 | 2/03 | 2/04 | >>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, January 29								Friday, January 30
Time						4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)						4	4	3	2	1	0	2	4	6	3	2
Direction
Temperature (F)						61	58	56	54	52	51	51	56	58	56	54
Model	NAM 12km								NAM 12km
Model Run						01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z
Visibility (mi)						15	15	15	13	8	3	8	15	15	15	14
Precipitation (in)
Cloud Cover (%)									4	30	63	91	51	54	22	28
Pressure (mb)						1018	1019	1018	1018	1018	1017	1018	1016	1014	1013	1014
Additional Data	Show Additional Data
Date	Saturday, January 31								Sunday, February 01
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	4	6	8	8	5	2	4	3	4	3	2	1	3	3	2	2
Direction
Temperature (F)	53	52	51	52	59	62	58	55	52	48	47	49	53	54	54	54
Model	NAM 12km								NAM 12km
Model Run	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z
Visibility (mi)	11	15	15	15	15	15	15	15	12			15	15	15	15	15
Precipitation (in)
Cloud Cover (%)	7							6	39	100	100	93	92	98	58	56
Pressure (mb)	1014	1015	1015	1016	1017	1016	1017	1018	1019	1020	1021	1022	1021	1021	1021	1022
Additional Data	Show Additional Data
Date	Monday, February 02								Tuesday, February 03
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	3	4	4	3	6	9	4	4	2	3	4	2	8	7	4	3
Direction
Temperature (F)	53	53	52	59	63	62	56	56	54	54	54	59	62	61	56	55
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1020	1019	1020	1020	1019	1018	1019	1019	1018	1018	1019	1019	1018	1018	1018	1019
Additional Data	Show Additional Data
Date	Wednesday, February 04								Thursday, February 05
Time	1am	4am	7am	10am	1pm	4pm	7pm	10pm	1am	4am	7am	10am	1pm	4pm	7pm	10pm
Wind (mph)	0	1	4	5	5	6	2	6	7	6	8	11	13	13	9	9
Direction
Temperature (F)	53	52	54	60	65	64	56	56	55	55	55	59	61	61	56	56
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/30 00z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z	01/29 18z
Visibility (mi)
Precipitation (in)
Cloud Cover (%)
Pressure (mb)	1018	1017	1017	1018	1016	1016	1016	1016	1016	1016	1017	1017	1017	1016	1017	1017
Additional Data	Show Additional Data