GRIB2 - TABLE 4.2-20-4

PARAMETERS FOR DISCIPLINE 20
CATEGORY 4

(Health and Socioeconomic Impacts, Meteorological and Hydrological Hazard Indices category)

In Section 0, Octet 7 = 20
In Section 4, Octet 10 = 4

Created 09/16/2025


Number
(In Section 4, octet 11)
Parameter Units
Abbrev
0 Reserved
1 Downburst See Table 4.253
DBURSTHI
2 Lightning (Electrical Storm) See Table 4.253
LTNGHI
3 Thunderstorm See Table 4.253
TSTMHI
4 Coastal Flood See Table 4.253
COASTFLDHI
5 Estuarine (Coastal) Flood See Table 4.253
ESTFLDHI
6 Flash Flood See Table 4.253
FFLDHI
7 Fluvial (Riverine) Flood See Table 4.253
FLUVFLDHI
8 Groundwater Flood See Table 4.253
GFLDHI
9 Ice-Jam Flood Including Debris See Table 4.253
IJFLDHI
10 Ponding (Drainage) Flood See Table 4.253
PFLDHI
11 Snowmelt Flood See Table 4.253
SMFLDHI
12 Surface Water Flooding See Table 4.253
SWFLDHI
13 Glacial Lake Outburst Flood See Table 4.253
GLOFLDHI
14 Black Carbon (Brown Clouds) See Table 4.253
BCHI
15 Dust Storm or Sandstorm See Table 4.253
DSTMHI
16 Fog See Table 4.253
FOGHI
17 Haze See Table 4.253
HZHI
18 Polluted Air See Table 4.253
POLAIRHI
19 Sand Haze See Table 4.253
SAHZHI
20 Smoke See Table 4.253
SMOKEHI
21 Ocean Acidification See Table 4.253
OAHI
22 Rogue Wave See Table 4.253
RWAVEHI
23 Sea Water Intrusion See Table 4.253
SWIHI
24 Sea Ice (Icebergs) See Table 4.253
SICEHI
25 Ice Flow See Table 4.253
ICEFLOWHI
26 Seiche See Table 4.253
SEICHEHI
27 Storm Surge See Table 4.253
SURGEHI
28 Storm Tides See Table 4.253
STMTIDEHI
29 Tsunami See Table 4.253
TSUNAMIHI
30 Depression or Cyclone (Low Pressure Area) (Pressure-Related) See Table 4.253
DEPRESHI
31 Extra-Tropical Cyclone (Pressure-Related) See Table 4.253
ECPRESHI
32 Sub-Tropical Cyclone (Pressure-Related) See Table 4.253
SUBTCPRESHI
33 Acid Rain See Table 4.253
ACIDRAINHI
34 Blizzard See Table 4.253
BLIZHI
35 Drought See Table 4.253
DRTHI
36 Hail See Table 4.253
HAILHI
37 Ice Storm See Table 4.253
ICESTMHI
38 Snow See Table 4.253
SNOWHI
39 Snowstorm See Table 4.253
SNOWSTMHI
40 Cold Wave See Table 4.253
CWAVEHI
41 Dzud See Table 4.253
DZUDHI
42 Freeze See Table 4.253
FRZHI
43 Frost (Hoar Frost) See Table 4.253
FROSTHI
44 Freezing Rain (Supercooled Rain) See Table 4.253
FRZRHI
45 Glaze See Table 4.253
GLAZEHI
46 Ground Frost See Table 4.253
GFROSTHI
47 Heatwave See Table 4.253
HWAVEHI
48 Icing (including Ice) See Table 4.253
ICINGHI
49 Thaw See Table 4.253
THAWHI
50 Avalanche See Table 4.253
AVALHI
51 Mud Flow See Table 4.253
MUDFLOWHI
52 Rock Slide See Table 4.253
RSLIDEHI
53 Derecho See Table 4.253
DERECHOHI
54 Gale (Strong Gale) See Table 4.253
GALEHI
55 Squall See Table 4.253
SQLNHI
56 Subtropical Storm See Table 4.253
SSTMHI
57 Tropical Cyclone (Cyclonic Wind, Rain [Storm] Surge) (Wind-Related) See Table 4.253
TCWINDHI
58 Tropical Storm (Wind-Related) See Table 4.253
TSWINDHI
59 Tornado See Table 4.253
TORHI
60 Wind See Table 4.253
WINDHI
61-190
Reserved

191-254
Reserved for Local Use


255
Missing




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