Heat Illness Prevention Information

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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Oct 9(Fri)17:00
Today[Oct 9]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsNot issued WBGT forecast: 31+Not issued

Heat Stress Index: WBGT

(Blue) Almost safe (Sky) Caution (Yellow) Warning (Orange) Severe Warning (Red) Danger
< 21
appropriate water replenishment suggested
21 - 25
water should be replenished often
25 - 28
rests should be provided often
28 - 31
heavy exercise prohibited
≥ 31
exercise prohibited
WBGT monitoring as of Oct 9 19:00
Sapporo
16.8
Aomori
15.3
Akita
15.3
Morioka
12.9
Sendai
15.3
Yamagata
14.8
Fukushima
16.0
Mito
16.4
Utsunomiya
16.8
Maebashi
17.1
Kumagaya
17.5
Tokyo
16.4
Choshi
19.1
Yokohama
17.7
Nagano
15.6
Kofu
18.6
Shizuoka
19.9
Nagoya
19.7
Gifu
18.8
Tsu
19.7
Niigata
15.1
Toyama
17.2
Kanazawa
18.0
Fukui
17.6
Hikone
18.6
Kyoto
19.1
Osaka
19.8
Kobe
19.5
Nara
19.1
Wakayama
20.7
Okayama
18.3
Hiroshima
20.3
Matsue
19.5
Tottori
18.7
Shimonoseki
21.3
Tokushima
20.4
Takamatsu
20.2
Matsuyama
21.3
Kochi
21.3
Fukuoka
21.1
Oita
20.5
Nagasaki
20.0
Saga
21.3
Kumamoto
20.8
Miyazaki
22.2
Kagoshima
23.0
Naha
24.3
Note

WBGT index is one of the empirical indices representing the heat stress to which an individual is exposed. (ISO7243)
WBGT varies depending on environmental situation and condition.

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