000 Surface data — land
001 Surface data — sea
002 Vertical soundings (other than satellite)
003 Vertical soundings (satellite)
004 Single level upper-air data (other than satellite)
005 Single level upper-air data (satellite)
006 Radar data
007 Synoptic features
008 Physical/chemical constituents
009 Dispersal and transport
010 Radiological data
011 BUFR tables, complete replacement or update
012 Surface data (satellite)
013 Forecasts
014 Warnings
015 Reserved
016 Reserved
017 Reserved
018 Reserved
019 Reserved
020 Status information
021 Radiances (satellite measured)
022 Reserved
023 Reserved
024 Reserved
025 Reserved
026 Reserved
027 Reserved
028 Reserved
029 Reserved
030 Reserved
031 Oceanographic data
032 Reserved
034 Reserved
035 Reserved
036 Reserved
037 Reserved
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096 Reserved
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098 Reserved
099 Reserved
100 Reserved
101 Image data
102 Reserved
103 Reserved
104 Reserved
105 Reserved
106 Reserved
107 Reserved
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111 Reserved
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232 Reserved
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235 Reserved
236 Reserved
237 Reserved
238 Reserved
239 Reserved
240 For experimental use
241 For experimental use
242 For experimental use
243 For experimental use
244 For experimental use
245 For experimental use
246 For experimental use
247 For experimental use
248 For experimental use
249 For experimental use
250 For experimental use
251 For experimental use
252 For experimental use
253 For experimental use
254 For experimental use
255 Indicator for local use, with sub-category