| Rail.Blue Railroad Weather Information System |
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- Rain
- Wind
- Alert
- Lightning
- Typhoon
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Satellite
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Registration Map
National Railroad
Metro and ETC.
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Rain
Rainfall within 1h
No rainfall within 1h
High-speed (v ≥ 300km/h)
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Limit to 130km/h | Daily Snowfall is greater than 14cm and less than 21cm |
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Limit to 170km/h | Daily Snowfall ≥ 14cm AND ＜ 21cm |
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Limit to 230km/h | Daily Snowfall ≥ 7cm AND ＜ 14cm |
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Limit to 230km/h for First Operation Train | Daily Snowfall ≥ 5cm AND ＜ 7cm |
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Operation Stop | Continuous rainfall ≥ 150mm AND rainfall ≥ 60mm/h ≥ 70mm/h of rainfall on the overpass and bridge sections |
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Limit to 90km/h | Continuous rainfall ≥ 150mm AND rainfall ≥ 35mm/h |
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Limit to 170km/h | Continuous rainfall ≥ 140mm AND rainfall ≥ 30mm/h |
Higher-speed (v ≥ 170km/h)
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Operation Stop | Continuous rainfall ≥ 150mm AND rainfall ≥ 60mm/h ≥ 70mm/h of rainfall on the overpass and bridge sections |
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Limit to 90km/h | Continuous rainfall ≥ 150mm AND rainfall ≥ 35mm/h |
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Limit to 170km/h | Continuous rainfall ≥ 140mm AND rainfall ≥ 30mm/h |
Normal (v ＜ 170km/h)
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Operation Stop | Continuous rainfall ＜ 150mm AND rainfall ≥ 65mm/h Continuous rainfall ≥ 150mm AND ＜ 320mm AND rainfall ≥ 25mm/h Continuous rainfall ≥ 320mm |
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Slow Down | Continuous rainfall ＜ 125mm AND rainfall ≥ 50mm/h Continuous rainfall ≥ 125mm AND ＜ 250mm AND rainfall ≥ 20mm/h Continuous rainfall ≥ 250mm |
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Cautious Operation | Continuous rainfall ＜ 100mm AND rainfall ≥ 40mm/h Continuous rainfall ≥ 100mm AND ＜ 210mm AND rainfall ≥ 10mm/h Continuous rainfall ≥ 210mm |
Wind
High-speed (v ≥ 300km/h)
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Operation Stop | Wind speed ≥ 45m/s |
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Limit to 90km/h | Wind speed ≥ 40m/s AND ＜ 45m/s |
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Limit to 170km/h | Wind speed ≥ 30m/s AND ＜ 40m/s |
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Slow Down | Wind speed ≥ 20m/s AND ＜ 30m/s |
Higher-speed (v ≥ 170km/h)
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Operation Stop | Wind speed ≥ 30m/s |
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Limit to 90km/h | Wind speed ≥ 25m/s AND ＜ 30m/s |
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Limit to 170km/h | Wind speed ≥ 20m/s AND ＜ 25m/s |
Normal (v ＜ 170km/h)
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Operation Stop | Wind speed ≥ 30m/s |
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Limit to 90km/h | Wind speed ≥ 25m/s AND ＜ 30m/s |
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Cautious Operation | Wind speed ≥ 20m/s AND ＜ 25m/s |
Alert
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Strong Wind advisory |
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Strong Wind warning |
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Wind Wave advisory |
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Wind Wave warning |
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Heavy Rain advisory |
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Heavy Rain warning |
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Heavy Snow advisory |
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Heavy Snow warning |
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Dry Air advisory |
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Dry Air warning |
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Storm Surge advisory |
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Storm Surge warning |
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Tsunami advisory |
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Tsunami warning |
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Cold Wave advisory |
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Cold Wave warning |
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Typhoon advisory |
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Typhoon warning |
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Yellow Dust advisory |
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Yellow Dust warning |
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Heat Wave advisory |
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Heat Wave warning |
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Volcanic Ash advisory |
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Volcanic Ash warning |
Weather Alert in Rail.Blue are announced excluding Dry and Yellow dust alert. Strong winds and Heavy snow alert are excluded for underground sections.
Lightning
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Lightning within 30min. |
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Lightning within 1h. |
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Lightning within 1h. 30min. |
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Lightning within 2h. |
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Lightning within 2h. 30min. |
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Lightning within 3h. |
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Lightning within 3h. 30min. |
Typhoon
Typhoon Intensity
| Maximum Wind Speed | |
| Weak | ≥ 17m/s (61km/h, 34kt) AND ＜ 25m/s (90km/h, 48kt) |
| Normal | ≥ 25m/s (90km/h, 48kt) AND ＜ 33m/s (119km/h, 64kt) |
| Strong | ≥ 33m/s (119km/h, 64kt) AND ＜ 44m/s (158km/h, 85kt) |
| Very Strong | ≥ 44m/s (158km/h, 85kt) AND ＜ 54m/s (194km/h, 105kt) |
| Super Strong | ≥ 54m/s (194km/h, 105kt) |
Wind Speed ≥ 15m/s Range
| Wind Speed ≥ 15m/s Range | |
| Small | ＜ 300km |
| Medium | ≥ 300km AND ＜ 500km |
| Large | ≥ 500km AND ＜ 800km |
| Extra-Large | ≥ 800km |
Icon
| Small | Medium | Large | Extra-Large | |
| Weak |  |
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| Normal |  |
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| Strong |  |
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| Very Strong |  |
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| Super Strong |  |
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| Wind Speed ≥ 15m/s Range | |
| Wind Speed ≥ 25m/s Range | |
| 70% Probability Range of Typhoon | |
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Tropical Depression Route |
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Center of Probability Range |
No Information
Common
High-speed (v ≥ 300km/h)
Higher-speed (v ≥ 170km/h)
Normal (v ＜ 170km/h)
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