레일.블루 철도기상정보시스템

Rain

Rainfall within 1h

Rainfall within 1h High-speed (v ≥ 300km/h)

No rainfall within 1h

High-speed (v ≥ 300km/h)

	Limit to 130km/h	Daily Snowfall is greater than 14cm and less than 21cm
	Limit to 170km/h	Daily Snowfall ≥ 14cm AND ＜ 21cm
	Limit to 230km/h	Daily Snowfall ≥ 7cm AND ＜ 14cm
	Limit to 230km/h for First Operation Train	Daily Snowfall ≥ 5cm AND ＜ 7cm
	Operation Stop	Continuous rainfall ≥ 150mm AND rainfall ≥ 60mm/h ≥ 70mm/h of rainfall on the overpass and bridge sections
	Limit to 90km/h	Continuous rainfall ≥ 150mm AND rainfall ≥ 35mm/h
	Limit to 170km/h	Continuous rainfall ≥ 140mm AND rainfall ≥ 30mm/h

Higher-speed (v ≥ 170km/h)

	Operation Stop	Continuous rainfall ≥ 150mm AND rainfall ≥ 60mm/h ≥ 70mm/h of rainfall on the overpass and bridge sections
	Limit to 90km/h	Continuous rainfall ≥ 150mm AND rainfall ≥ 35mm/h
	Limit to 170km/h	Continuous rainfall ≥ 140mm AND rainfall ≥ 30mm/h

Normal (v ＜ 170km/h)

	Operation Stop	Continuous rainfall ＜ 150mm AND rainfall ≥ 65mm/h Continuous rainfall ≥ 150mm AND ＜ 320mm AND rainfall ≥ 25mm/h Continuous rainfall ≥ 320mm
	Slow Down	Continuous rainfall ＜ 125mm AND rainfall ≥ 50mm/h Continuous rainfall ≥ 125mm AND ＜ 250mm AND rainfall ≥ 20mm/h Continuous rainfall ≥ 250mm
	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)

	Operation Stop	Wind speed ≥ 45m/s
	Limit to 90km/h	Wind speed ≥ 40m/s AND ＜ 45m/s
	Limit to 170km/h	Wind speed ≥ 30m/s AND ＜ 40m/s
	Slow Down	Wind speed ≥ 20m/s AND ＜ 30m/s

Higher-speed (v ≥ 170km/h)

	Operation Stop	Wind speed ≥ 30m/s
	Limit to 90km/h	Wind speed ≥ 25m/s AND ＜ 30m/s
	Limit to 170km/h	Wind speed ≥ 20m/s AND ＜ 25m/s

Normal (v ＜ 170km/h)

	Operation Stop	Wind speed ≥ 30m/s
	Limit to 90km/h	Wind speed ≥ 25m/s AND ＜ 30m/s
	Cautious Operation	Wind speed ≥ 20m/s AND ＜ 25m/s

Alert

	Strong Wind advisory		Strong Wind warning
	Wind Wave advisory		Wind Wave warning
	Heavy Rain advisory		Heavy Rain warning
	Heavy Snow advisory		Heavy Snow warning
	Dry Air advisory		Dry Air warning
	Storm Surge advisory		Storm Surge warning
	Tsunami advisory		Tsunami warning
	Cold Wave advisory		Cold Wave warning
	Typhoon advisory		Typhoon warning
	Yellow Dust advisory		Yellow Dust warning
	Heat Wave advisory		Heat Wave warning
	Volcanic Ash advisory		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

	Lightning within 30min.
	Lightning within 1h.
	Lightning within 1h. 30min.
	Lightning within 2h.
	Lightning within 2h. 30min.
	Lightning within 3h.
	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)