Indian Ocean Weather Information

 

Resources available by radio:

          1. Text reports – North Indian Ocean

          2. Text reports – South Indian Ocean

          3. Weatherfax – South Indian Ocean

          4. How to request a moving forecast GRIB

 

Resources available by internet:

          5. Map of cyclone tracks for the 2011-2012 season

          6. Metvue provides South Africa weather reporting

 

1. North Indian Ocean text reports - Met area 8N 

24 & 48 hr. forecasts of wind speed & direction, weather, wave height, visibility, warnings for the 4 regions shown below. Report file size is ~ 5.5K

 

Source: Airmail – via Sailmail or Winlink

 

 

 

Areas of coverage:

 

Sub Regions:

A1 ARABIAN SEA EQUATOR TO 10 DEG. N AND W OF 80 DEG. E.

A2 ARABIAN SEA N. OF 10 DEG N.AND  W OF 80 DEG E.

A3 BAY OF BENGAL EQUATOR TO 10 DEG N AND E-OF 80 DEG E.

A4 BAY OF BENGAL N OF 10 DEG N AND E OF 80 DEG E.

 

2. South Indian Ocean text reports - Met area 8S 

24 & 48 hr. forecasts of wind speed & direction, weather, wave height, visibility, warnings for the 7 regions shown below.  Includes coordinates of the ITCZ axis.

Report file size is ~6K

 

Source: Airmail – via Sailmail or Winlink

 

 

 

Areas of coverage:

 

 

 

Sub Regions:

8/1 :  20 Degrees South to 30 Degrees South,  55 degrees East to 75 Degrees East,
8/2 :  20 Degrees South to 30 Degrees South,  75 degrees East to 95 Degrees East,
8/3 :  10 Degrees South to 20 Degrees South,  55 degrees East to 75 Degrees East,
8/4 :  10 Degrees South to 20 Degrees South,  75 degrees East to 95 Degrees East,
8/5 :  00 Degree South to 10 Degrees South,  55 degrees East to 75 Degrees East,
8/6 :  00 Degree South to 10 Degrees South,  75 degrees East to 95 Degrees East,
8/7 :  00 Degree South to 10 Degrees South,  East African Coast  to 55 Degrees East.

 

3. South Indian Ocean WxFax images

(0000 and 1200 UTC weather fax images)

Report file size is ~17K

 

Source: Airmail –via Winlink

 

 

Coverage: see sample images below

 

0000 UTC 15  Dec. 2011 report

 

 

 

 

 

 

 

 

 

 

 

Same WxFax chart with outlined geography I added for clarity (for future reference)

 

 

4. GRIB Reports with moving forecast input

 

Source: Airmail – via Sailmail or Winlink

 

 

 

 

 

 

 

5. Southwest Indian Ocean Cyclones Report 2011-2012

Track maps, photos and descriptions of all disturbances, depressions, storms and cyclones in the 2011–12 South-West Indian Ocean cyclone season (7 as of Jan. 30, 2012). The points show the location of the storm at 6-hour intervals. The colour represents the storm's maximum sustained wind speeds as classified in the Saffir-Simpson Hurricane Scale.  Detailed reports of the individual weather systems are also available.

 

Source: Internet

 http://en.wikipedia.org/wiki/2011%E2%80%9312_South-West_Indian_Ocean_cyclone_season

 

Coverage:

The basin is defined as the area west of 90°E and south of the Equator in the Indian Ocean, which includes the waters around Madagascar westward to the east coast of Africa.

 

30 Jan. 2012 summary report

 

 

 

 

 

 

6. Metvuw South Africa Weather Charts

Click on forecast charts, then Southern Africa.

 

Source: Internet: www.metvuw.com

 

 

Rev. Feb 26, 2012

Dave Pryde  s/v Baraka