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Heat Stroke Alerts have been issued. [Map View]

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Special Heat Stroke Alert ・ Heat Stroke Alert

Updated at Aug 16(Sun)17:00
Today[Aug 17]
Map of Japan Alert Map(Today) Special Heat Stroke AlertsNot issued Heat Stroke AlertsIssued 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 Aug 17 1:00
Sapporo
20.5
Aomori
21.5
Akita
21.1
Morioka
19.4
Sendai
22.1
Yamagata
20.1
Fukushima
21.4
Mito
20.7
Utsunomiya
21.6
Maebashi
21.6
Kumagaya
22.0
Tokyo
21.4
Choshi
23.7
Yokohama
23.1
Nagano
21.9
Kofu
22.9
Shizuoka
23.8
Nagoya
23.6
Gifu
23.8
Tsu
24.6
Niigata
23.0
Toyama
25.0
Kanazawa
25.3
Fukui
23.2
Hikone
23.2
Kyoto
23.3
Osaka
22.8
Kobe
22.9
Nara
22.8
Wakayama
22.6
Okayama
23.8
Hiroshima
23.7
Matsue
23.7
Tottori
24.4
Shimonoseki
25.0
Tokushima
24.1
Takamatsu
23.6
Matsuyama
24.9
Kochi
23.3
Fukuoka
25.5
Oita
24.4
Nagasaki
23.6
Saga
25.1
Kumamoto
23.8
Miyazaki
24.3
Kagoshima
25.1
Naha
25.6
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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