Skip Navigation Linkwww.weather.gov 
NOAA logo - Select to go to the NOAA homepage National Weather Service Headquarters Office   NWS logo
NWS Office of the Chief Information Officer/Telecommunication Operations Center
 
    
Home Page > Organization > OCIO > TOC > The Gateway > The WMO > Codes & Headings > Heading Tables > Table C3


Table C3

Geographical area designator A1
(when T1   =   D,G,O,P,or T)

Geographical area designator A2
(when T1   =   I, J, or K)

Instructions for the proper application of the geographical area designator.

1. The designator specified in this table should be used to the greatest extent possible to indicate the geographical area of the data contained within the text of the bulletin.

2. Where the geographical area of the data does not correspond exactly with the designator, the designator for the area most approximating that of the data may be used.

3. When the table does not contain a suitable designator for the geographical area, an alphabetic designator which is not assigned in the table should be introduced and the WMO secretariat notified.

Designator Geographical Area
A 0 - 90W northern hemisphere
B 90W - 180 northern hemisphere
C 180 - 90E northern hemisphere
D 90E - 0 northern hemisphere
E 0 - 90W tropical belt
F 90W - 180 tropical belt
G 180 - 90E tropical belt
H 90E - 0 tropical belt
I 0 - 90W southern hemisphere
J 90W - 180 southern hemisphere
K 180 - 90E southern hemisphere
L 90E - 0 southern hemisphere
M Lower left 10S 100E/upper right 70N 110W
N Northern hemisphere
P Area between 64.69N - 136.76W, 55.61N - 13.43W
64.69N - 156.76W, 55.61N - 33.43W
S Southern hemisphere
T 45W - 180 northern hemisphere
U Area between 21.0N - 128.1W, 36.0N - 130.9W
21.1N - 113.0W, 36.2N - 110.5W
V Area between 30.3N - 83.7W, 51.0N - 68.9W
19.8N - 64.5W, 33.3N - 47.1W
X Global Area (area not definable)


US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Office of the Chief Information Officer (OCIO)
1325 East West Highway
Silver Spring, MD 20910
Page last modified: July 17, 2003
Page Author: Internet Services Group		 Disclaimer
Feedback 		Privacy Policy
Credits