Keep an eye on the weather

Share on LinkedIn
Share on Facebook

Keep an eye on the weather
天気に注意を

JMA_fi_600x325

With images of the destruction wrought by 2011’s Great East Japan Earthquake and subsequent tsunami having been broadcast around the world, most visitors and recently-arrived residents will no doubt be aware of the ever-present danger of seismic activity in Japan. But these are not the only potential hazards, as tropical cyclones (typhoons) and other natural phenomena can also cause tremendous damage and loss of life, as demonstrated by the Heavy Rain Event of July 2018. It’s therefore important to heed weather forecasts and pay attention to warnings and advisories.

 

Warnings and Advisories

The Japan Meteorological Agency issues a number of warnings and advisories in response to potential weather hazards. Current warnings and advisories are broadcast on TV and radio weather forecasts, and warnings often are flashed briefly at the top of TV screens when issued. As these are broadcast in Japanese, it’s a good idea to try and remember some of the important vocabulary you’ll need to decipher warnings.

 

◆Emergency warnings (特別警報 / tokubetsu keihō)

– issued when a serious disaster will most probably happen

大雨(土砂災害、浸水害) / ōame (dosha-saigai,
shinsui-gai)
Heavy rain (Ground-loosening, Inundation)
大雪 / ōyuki Heavy snow
暴風 / bōfū Storm
暴風雪 / bōfūsetsu Snow-storm
波浪 / harō High waves
高潮 / takashio Storm surge

 

◆Warnings (警報 / keihō)

– issued when serious disasters may happen

大雨(土砂災害、浸水害) / ōame (dosha-saigai,
shinsui-gai)
Heavy rain (Ground-loosening, Inundation)
洪水 / kōzui Flood
暴風 / bōfū Storm
暴風雪 / bōfūsetsu Snow-storm
大雪 / ōyuki Heavy snow
波浪 / harō High waves
高潮 / takashio Storm surge

 

◆Advisories (注意報 / chūihō)

– issued when disasters may happen

大雨 / ōame Heavy rain
洪水 / kōzui Flood
強風 / kyōfū Gale
風雪 / fūsetsu Gale and snow
大雪 / ōyuki Heavy snow
波浪 / harō High waves
高潮 / takashio Storm surge
雷 / kaminari Thunderstorm
融雪 / yūsetsu Snow-melting
濃霧 / nōmu Dense fog
乾燥 / kansō Dry air
なだれ / nadare Avalanche
低温 / teion Low temperature
霜 / shimo Frost
着氷 / chakuhyō Ice accretion
着雪 / chakusetsu Snow accretion

 

It’s also useful to familiarize yourself with local geography. Warnings and advisories are issued for sub-prefecture regions and municipalities, so to determine whether a warning applies to you, you need to know which sub-prefecture region your current location is in. Aichi Prefecture is divided into 2 main sub-prefecture regions, Seibu (西部 / west) and Tobu (東部 / east), and these are divided into another 5 and 3 smaller sub-prefecture regions respectively.

Seibu / 西部 Owari Tobu / 尾張東部
Owari Seibu / 尾張西部
Chita Chiiki / 知多地域
Nishi-mikawa Nambu / 西三河南部
Nishi-mikawa Hokuseibu / 西三河北西部
Tobu / 東部 Nishi-mikawa Hokutobu / 西三河北東部
Higashi-mikawa Hokubu / 東三河北部
Higashi-mikawa Nambu / 東三河南部

See the Japan Meteorological Agency website for municipalities within each sub-prefecture region.

 

The Japan Meteorological Agency website

A great resource for keeping yourself informed of the latest weather information in English is the Japan Meteorological Agency (気象庁) website. Here you can find information on an earthquake you felt a few minutes ago, volcanic warnings, a predicted course of an approaching tropical cyclone, current warnings and advisories for the whole country, and more.

 

◆Real-time Risk Maps of Weather Warnings / Advisories

Another useful feature on the JMA website is Real-time Risk Maps which allow users to understand a number of risk factors for your current location.

Analysis and Forecast of Precipitation:Radar/Rain gauge-Analyzed Precipitation data are updated every 10 minutes with a spatial resolution of 1 km. Past data with a time interval of 30 minutes are displayed.
Forecasts of hourly precipitation up to 6 hours ahead are updated every 10 minutes with a spatial resolution of 1 km. Forecasts of hourly precipitation from 7 to 15 hours ahead are updated every hour with a spatial resolution of 5 km.
JMA_0_PrecipitationForecast0 JMA_0_PrecipitationForecastQR
High-resolution Precipitation Nowcasts: These provide short-range precipitation intensity predictions with a spatial resolution of 250m, derived from weather radar data and other types of meteorological information. JMA_1_JMAPrecipitation0 JMA_1_JMAPrecipitationQR
Real-time Landslide Risk Map:This map shows the levels of landslide risk for individual 5-km grid square on an ascending scale of five risk levels ranking from white (low) to purple (high).This type of Warning is shown in red as Heavy rain (Ground-loosening) on the Weather Warnings/Advisories webpage. JMA_2_JMALandslide0 JMA_2_JMALandslideQR
Real-time Inundation Risk Map:This map shows levels of inundation risk for individual 1-km grid square on an ascending scale of five risk levels ranking from white (low) to purple (high). JMA_3_JMAInundation0 JMA_3_JMAInundationQR
Real-time Flood Risk Map:This map shows levels of flood risk for rivers of five levels ranking from light blue (low) to purple (high). JMA_4_JMAFlood0 JMA_4_JMAFloodQR

Japan Meteorological Agency website: https://www.jma.go.jp/jma/indexe.html

To learn more about the Nagoya International Center,
please watch our video.

Your feedback is appreciated. Please note that we are unable to respond to inquiries sent via this form.

Did you find the information on this page useful? (Required)

 Yes No

Please send us your feedback and comments.*Please DO NOT SEND INQUIRIES using this form. For inquiries, please call us on 052-581-0100 or e-mail us from our contact page.

Enter the code as it is shown. This helps prevent automated access.
captcha