iWindsurf.com - Wind Forecasts

CLASSIC IWINDSURF

Hello Guest

•

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
> 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

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: 9/16 | 9/17 | 9/18 | 9/19 | 9/20 | 9/21 | 9/22 | >>Wind Obs Map<<

Alcatraz Computer Forecast Table - Meteogram

Help us improve this product by taking the survey!

Quick Look
More Hours

NAM 12km

GFS 0.5 Deg

Help

Date	Tuesday, September 16								Wednesday, September 17
Time		5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)		2	2	3	7	7	5	5	4	3	3	4	6	7	6	6
Direction
Temperature (F)		60	60	64	66	65	60	57	55	54	54	60	66	68	63	59
Model	NAM 12km								NAM 12km
Model Run		09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)		1011	1013	1014	1014	1013	1013	1015	1015	1014	1015	1015	1013	1011	1011	1011
Visibility (mi)
Cloud Cover (%)		3	24	38	42	41	50	57	56	72	73	62	38	27	35	56
Additional Data	Show Additional Data
Date	Thursday, September 18								Friday, September 19
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	7	9	6	6	6	8	6	3	6	5	5	7	9	9	7	4
Direction
Temperature (F)	58	58	59	61	62	61	62	63	60	60	61	66	68	67	61	60
Model	NAM 12km								GFS 0.5 Deg
Model Run	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)	1010	1010	1011	1012	1011	1010	1010	1010	1011	1011	1013	1013	1013	1013	1014	1015
Visibility (mi)
Cloud Cover (%)	85	100	99	100	100	100	100	100
Additional Data	Show Additional Data
Date	Saturday, September 20								Sunday, September 21
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	3	3	2	3	7	8	6	5	4	3	2	3	5	7	6	4
Direction
Temperature (F)	59	59	60	67	70	70	62	60	60	60	61	68	73	73	65	63
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)	1016	1016	1017	1017	1016	1015	1017	1017	1017	1016	1017	1017	1015	1014	1014	1015
Visibility (mi)
Cloud Cover (%)
Additional Data	Show Additional Data
Date	Monday, September 22								Tuesday, September 23
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	3	3	3	1	5	7	7	5	4	1	6	3	7	7	6	4
Direction
Temperature (F)	62	61	63	70	74	74	65	62	61	60	62	68	67	68	62	61
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)	1014	1013	1014	1014	1012	1010	1011	1012	1012	1011	1012	1013	1013	1012	1014	1014
Visibility (mi)
Cloud Cover (%)
Additional Data	Show Additional Data
Date	Wednesday, September 24								Thursday, September 25
Time	2am	5am	8am	11am	2pm	5pm	8pm	11pm	2am	5am	8am	11am	2pm	5pm	8pm	11pm
Wind (mph)	4	7	2	2	10	8	6	6	5	4	5	6	10	9	5	8
Direction
Temperature (F)	61	62	62	67	69	68	61	60	60	61	62	65	68	68	64	62
Model	GFS 0.5 Deg								GFS 0.5 Deg
Model Run	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)	1013	1013	1015	1015	1014	1013	1015	1015	1015	1016	1017	1018	1016	1015	1015	1015
Visibility (mi)
Cloud Cover (%)			1							57	70	10			35	13
Additional Data	Show Additional Data
Date	Friday, September 26
Time	2am	5am
Wind (mph)	8	8
Direction
Temperature (F)	58	57
Model	GFS 0.5 Deg
Model Run	09/16 12z	09/16 12z
Precipitation (in)
Pressure (mb)	1015	1014
Visibility (mi)
Cloud Cover (%)
Additional Data	Show Additional Data