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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Jun 6(Sat)5:00
Today[Jun 6]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsNot issued WBGT forecast: 31+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 Jun 6 9:00
Sapporo
10.8
Aomori
13.0
Akita
12.8
Morioka
13.3
Sendai
13.7
Yamagata
13.9
Fukushima
14.0
Mito
16.0
Utsunomiya
18.2
Maebashi
18.4
Kumagaya
16.7
Tokyo
17.8
Choshi
15.6
Yokohama
18.0
Nagano
20.4
Kofu
19.9
Shizuoka
19.9
Nagoya
19.1
Gifu
18.4
Tsu
21.4
Niigata
19.5
Toyama
20.2
Kanazawa
21.4
Fukui
21.1
Hikone
20.8
Kyoto
21.9
Osaka
21.7
Kobe
22.6
Nara
22.3
Wakayama
23.1
Okayama
21.4
Hiroshima
21.6
Matsue
23.3
Tottori
23.2
Shimonoseki
22.8
Tokushima
22.1
Takamatsu
22.4
Matsuyama
23.9
Kochi
22.0
Fukuoka
24.2
Oita
24.0
Nagasaki
23.6
Saga
25.6
Kumamoto
25.2
Miyazaki
25.2
Kagoshima
25.3
Naha
26.9
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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