気象関係コード表（FETI）

注意：一部英語で記述してある

水色（Water color）
コード フォーレル・ウーレ階級
01 I
02 II
03 III
04 IV
05 V
06 VI
07 VII
08 VIII
09 IX
10 X
11 XI
12 XII
13 XIII
14 XIV
15 XV
16 XVI
17 XVII
18 XVIII
19 XIX
20 XX
21 XXI

気象庁風力階級（Wind force）

ビューフォート風力階級と同値
コード 説明 Knots m/s
0 鏡のような海面 0- 0.9 0 - 0.2
1 うろこのようなさざ波ができるが、波がしらに泡はない。 1- 3 0.3- 1.5
2 小波の小さいもので、まだ短いがはっきりしてくる。波がしらはなめらかに見え、砕けていない。 4- 6 1.6- 3.3
3 小波の大きなもの、波がしらが砕け始める。泡はガラスのように見える。ところどころ白波が現れることがある。 7- 10 3.4- 5.4
4 波の小さいもので、長くなる。白波がかなり多くなる。 11- 16 5.5- 7.9
5 波の中くらいのもので、いっそうはっきりして長くなる。白波がたくさん現れる。（しぶきを生じることもある。） 17- 21 8.0-10.7
6 波の大きいものができ始める。いたるところで白く泡立った波がしらの範囲がいっそう広くなる。（しぶきを生じることが多い。） 22- 27 10.8-13.8
7 波はますます大きくなり、波がしらが砕けてできた白い泡は、すじを引いて風下に吹き流され始める。 28- 33 13.9-17.1
8 大波のやや小さいもので、長さが長くなる。波がしらの端は砕けて水煙となり始める。泡は明りょうなすじを引いて風下に吹き流される。 34- 40 17.2-20.7
9 大波。泡は濃いすじを引いて風下に吹き流される。波がしらはのめり、くずれ落ち、逆巻き始める。しぶきのため視程が損なわれることもある。 41- 47 20.8-24.4
10 波がしらが長くのしかかるような非常に高い大波。大きなかたまりとなった泡は濃い白色のすじを引いて風下に吹き流される。海面は全体として白く見える。波のくずれ方は、激しく衝動的になる。視程は損なわれる。 48- 55 24.5-28.4
11 山のように高い大波（中小船舶は、一時、波の陰に見えなくなることもある）。海面は、風下に吹き流された長い白色の泡のかたまりで完全に覆われる。いたるところで波がしらの端が吹き飛ばされて水煙となる。視程は損なわれる。 56- 63 28.5-32.6
12 大気は、泡としぶきが充満する。海面は、吹き飛ぶしぶきのために完全に白くなる。視程は著しく損なわれる。 64以上 32.7以上

気象庁風浪階級（Sea State）

WMO3700と同値
階級 説明 波の高さ（ m ）
0 鏡のようになめらかである。 0
1 さざ波がある。 0 〜 1/10
2 なめらか、小波がある。 1/10 〜 1/2
3 やや波がある。 1/2 〜 1 1/4
4 かなり波がある。 1 1/4 〜 2 1/2
5 波がやや高い。 2 1/2 〜 4
6 波がかなり高い。 4 〜 6
7 相当荒れている。 6 〜 9
8 非常に荒れている。 9 〜 14
9 異常な状態。 14 〜

気象庁うねり階級（Swell）
階級 説明
0 うねりがない
1 短くまたは中位の弱いうねり（波高2m未満）
2 長く弱いうねり（波高2m未満）
3 短くやや高いうねり（波高2m 〜 4m）
4 中位のやや高いうねり（波高2m 〜 4m）
5 長くやや高いうねり（波高2m 〜 4m）
6 短く高いうねり（波高4m以上）
7 中位の高いうねり（波高4m以上）
8 長く高いうねり（波高4m以上）
9 2方向以上からうねりがきて海上が混乱している場合



※　うねり説明

短く：
波長100m未満、周期8.0秒以下
中位の：
波長100〜200m、周期8.1〜11.3秒
長く：
波長200m以上、周期11.4秒以上

現在天候（Present weather）

現在天候（Present weather）（WMO 4501）

Based on WMO Code 4501 for recording present weather

Code Description
L00 Clear(No cloud at any level)
L01 Partly cloudy(Scattered or broken)
L02 Continuous layer(s) of blowing snow
L03 Sandstorm, duststorm, or blowing snow
L04 Fog, thick dust or haze
L05 Drizzle
L06 Rain
L07 Snow, or rain and snow mixed
L08 Shower(s)
L09 Thunderstorm(s)

Conversion from Beaufort weather notation to WMO Code 4501

Abbreviation Description Code
B Blue sky whether with clear or hazy atmosphere, or sky not more than one-quarter clouded. 0
BC Sky between one-quarter and three-quarters clouded. 1
C Mainly cloudy (not less than three-quarters covered). 1
D Drizzle or fine rain. 5
E Wet air without rain falling. 4
F Fog. 4
FE Wet fog. 4
G Gloomy. 2
H Hail. 9
KQ Line squall. 9
L Lightning. 9
M Mist. 4
O Overcast sky (i.e., the whole sky covered with unbroken cloud). 2
P Passing showers. 8
Q Squalls. 9
R Rain. 6
RS Sleet (i.e., rain and snow together). 7
S Snow. 7
T Thunder. 9
TL Thunderstorm. 9
U Ugly, threatening sky. 2
V Unusual visibility. 0
Z Dust haze; the turbid atmosphere or dry weather. 4

現在天候（Present Weather）（WMO Code 4677）

WMO Code 4677 for recording present weather

ww = 00 - 03
No meteors except photometeors



Code
ww		 Description
00 Cloud development not observed or not observable *
01 Clouds generally dissolving or becoming less developed *
02 State of sky on the whole unchanged *
03 Clouds generally forming or developing *

* characteristic change of the state of sky during the past hour

ww = 04 - 09
Haze, dust, sand or smoke



Code
ww		 Description
04 Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes
05 Haze
06 Widespread dust in suspension in the air, not raised by wind at or near the station at the time of observation
07 Dust or sand raised by wind at or near the station at the time of observation, but no well developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen
08 Well developed dust whirl(s) or sand whirl(s) seen at or near the station during the preceding hour or at the time ot observation, but no duststorm or sandstorm
09 Duststorm or sandstorm within sight at the time of observation, or at the station during the preceding hour

* The expression "at the station" refers to a land station or a ship.

Code
ww		 Description
10 Mist
11 Patches of shallow fog or ice fog at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea
12 More or less continuous shallow fog or ice fog at the station, whether on land or sea, not deeper than about 2 metres on land or 10 metres at sea
13 Lightning visible, no thunder heard
14 Precipitation within sight, not reaching the ground or the surface of the sea
15 Precipitation within sight, reaching the ground or the surface of the sea, but distant (i.e. estimated to be more than 5 km) from the station
16 Precipitation within sight, reaching the ground or the surface of the sea, near to, but not at the station
17 Thunderstorm, but no precipitation at the time of observation
18 Squalls at or within sight of the station during the preceding hour or at the time of observation
19 Funnel cloud(s)** at or within sight of the station during the preceding hour or at the time of observation

* The expression "at the station" refers to a land station or a ship.
** Tornado cloud or waterspout.

ww = 20 - 29
Precipitation, fog, ice fog or thunderstorm at the station during the preceding hour but not at the time of observation



Code
ww		 Description
20 Drizzle (not freezing) or snow grains not falling as shower(s)
21 Rain (not freezing) not falling as shower(s)
22 Snow not falling as shower(s)
23 Rain and snow or ice pellets, type (a) not falling as shower(s)
24 Freezing drizzle or freezing rain not falling as shower(s)
25 Shower(s) of rain
26 Shower(s) of snow, or of rain and snow
27 Shower(s) of hail*, or of rain and hail*
28 Fog or ice fog
29 Thunderstorm (with or without precipitation)

* Hail, ice pellets, type (b), snow pellets. French: grele, gresil ou neige roulee.

ww = 30 - 39
Duststorm, sandstorm, drifting or blowing snow



Code
ww		 Description
30 Slight or moderate duststorm or sandstorm - has decreased during the preceding hour
31 Slight or moderate duststorm or sandstorm - no appreciable change during the preceding hour
32 Slight or moderate duststorm or sandstorm - has begun or has increased during the preceding hour
33 Severe duststorm or sandstorm - has decreased during the preceding hour
34 Severe duststorm or sandstorm - no appreciable change during the preceding hour
35 Severe duststorm or sandstorm - has begun or has increased during the preceding hour
36 Slight or moderate blowing snow generally low (below eye level)
37 Heavy drifting snow generally low (below eye level)
38 Slight or moderate blowing snow generally high (above eye level)
39 Heavy drifting snow generally high (above eye level)
ww = 40 - 49
Fog or ice fog at the time of observation



Code
ww		 Description
40 Fog or ice fog at a distance at the time of observation, but not at the station during the preceding hour, the fog or ice fog extending to a level above that of the observer
41 Fog or ice fog in patches
42 Fog or ice fog, sky visible has become thinner during the preceding hour
43 Fog or ice fog, sky invisible has become thinner during the preceding hour
44 Fog or ice fog, sky visible no appreciable change during the preceding hour
45 Fog or ice fog, sky invisible no appreciable change during the preceding hour
46 Fog or ice fog, sky visible has begun or has become thicker during the preceding hour
47 Fog or ice fog, sky invisible has begun or has become thicker during the preceding hour
48 Fog, depositing rime, sky visible
49 Fog, depositing rime, sky invisible
ww = 50 - 99
Precipitation at the station at the time of observation
ww = 50 - 59
Drizzle



Code
ww		 Description
50 Drizzle, not freezing, intermittent slight at time of observation
51 Drizzle, not freezing, continuous slight at time of observation
52 Drizzle, not freezing, intermittent moderate at time of observation
53 Drizzle, not freezing, continuous moderate at time of observation
54 Drizzle, not freezing, intermittent heavy (dence) at time of observation
55 Drizzle, not freezing, continuous heavy (dence) at time of observation
56 Drizzle, freezing, slight
57 Drizzle, freezing, moderate or heavy (dence)
58 Drizzle and rain, slight
59 Drizzle and rain, moderate or heavy
ww = 60 - 69
Rain



Code
ww		 Description
60 Rain, not freezing, intermittent slight at time of observation
61 Rain, not freezing, continuous slight at time of observation
62 Rain, not freezing, intermittent moderate at time of observation
63 Rain, not freezing, continuous moderate at time of observation
64 Rain, not freezing, intermittent heavy at time of observation
65 Rain, not freezing, continuous heavy at time of observation
66 Rain, freezing, slight
67 Rain, freezing, moderate or heavy
68 Rain, or drizzle and snow, slight
69 Rain, or drizzle and snow, moderate or heavy
ww = 70 - 79
Solid precipitation not in showers



Code
ww		 Description
70 Intermittent fall of snow flakes slight at time of observation
71 Continuous fall of snow flakes slight at time of observation
72 Intermittent fall of snow flakes moderate at time of observation
73 Continuous fall of snow flakes moderate at time of observation
74 Intermittent fall of snow flakes heavy at time of observation
75 Continuous fall of snow flakes heavy at time of observation
76 Ice prisms (with or without fog)
77 Snow grains (with or without fog)
78 Isolated starlike snow crystals (with or without fog)
79 Ice pellets, type (a)
ww = 80 - 99
Showery precipitation, or precipitation with current or recent thunder storm



Code
ww		 Description
80 Rain shower(s), slight
81 Rain shower(s), moderate or heavy
82 Rain shower(s), violent
83 Shower(s) of rain and snow mixed, slight
84 Shower(s) of rain and snow mixed, moderate or heavy
85 Snow shower(s), slight
86 Snow shower(s), moderate or heavy
87 Shower(s) of snow pellets or ice pellets, type (b), with or without rain or rain and snow mixed - slight
88 Shower(s) of snow pellets or ice pellets, type (b), with or without rain or rain and snow mixed - moderate or heavy
89 Shower(s) of hail*, with or without rain or rain and snow mixed, not associated with thunder - slight
90 Shower(s) of hail*, with or without rain or rain and snow mixed, not associated with thunder - moderate or heavy
91 Slight rain at time of observation - thunderstorm during the preceding hour but not at time of observation
92 Moderate or heavy rain at time of observation - thunderstorm during the preceding hour but not at time of observation
93 Slight snow, or rain and snow mixed or hail** at time of observation - thunderstorm during the preceding hour but not at time of observation
94 Moderate or heavy snow, or rain and snow mixed or hail** at time of observation - thunderstorm during the preceding hour but not at time of observation
95 Thunderstorm, slight or moderate, without hail**, but with rain and/or snow at time of observation - thunderstorm at time of observation
96 Thunderstorm, slight or moderate, with hail** at time of observation - thunderstorm at time of observation
97 Thunderstorm, heavy, without hail**, but with rain and/or snow at time of observation - thunderstorm at time of observation
98 Thunderstorm combined with duststorm or sandstorm at time of observation - thunderstorm at time of observation
99 Thunderstorm, heavy, with hail** at time of observation - thunderstorm at time of observation

* French: grele.
** Hail, ice pellets, type (b), snow pellets. French: grele, gresil ou neige roulee.

雲形（Cloud type）（WMO 0500）
コード 説明
0 巻雲 ----- Ci
1 巻積雲 ----- Cc
2 巻層雲 ----- Cs
3 高積雲 ----- Ac
4 高層雲 ----- As
5 乱層雲 ----- Ns
6 層積雲 ----- Sc
7 層雲 ----- St
8 積雲 ----- Cu
9 積乱雲 ----- Cb
X 暗闇、霧、砂塵あらし、砂あらし、その他類似の現象のため雲が確認できなかった

雲量（Cloud amount） （WMO 2700）
コード 説明
0 0 0
1 1/8以下、ただし0ではない 1/10以下、ただし0ではない
2 2/8 2/10〜3/10
3 3/8 4/10
4 4/8 5/10
5 5/8 6/10
6 6/8 7/10〜8/10
7 7/8以上、ただし8/8ではない 9/10以上、ただし10/10ではない
8 8/8 10/10
9 雲量が判断できなかった