WorldAware is tracking Tropical Storm Danas in the East China Sea. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. If possible, ensure that critical business operations can failover to business units outside of the storm zone as needed.

Hurricanes, also called tropical cyclones or typhoons (depending on where in the world they occur), are low-pressure weather systems that most often form in the tropics. The warm, moisture-laden air of the tropics contains this energy, thus most hurricanes develop within 20 degrees of the equator and begin to dissipate as they move into mid-latitudes.

Hurricanes are categorized according to the strength of their winds using the Saffir-Simpson Hurricane Scale. Take the following preparations in advance of a storm.

  • Review and update emergency action plans well in advance of the storm. Consider conducting drills. Think about evacuating personnel to outside of the storm's area of impact. If there is any doubt as to the viability of a structure, evacuate ahead of time.
  • Stock up on nonperishable supplies and bottled water for essential personnel who must remain during the storm. Procure additional first aid supplies, insect repellent, ice, vehicle fuel, spare batteries, flashlights, radios, mobile phones, etc. Consider purchasing a few non-powered hand tools (hammer, nails, crowbars, wood, etc.) to have on hand.
  • Test emergency back-up power supplies and ensure there is plenty of fuel to operate a backup generator should power be knocked out for an extended period.
  • Secure buildings, or make sure building owners do so well in advance of the storm's approach. Remove or secure any equipment that could become airborne during a storm.
 
Navigate to each of the alert updates for Tropical Storm Danas:

Warning Alert | July 18: Danas tracking northward in the East China Sea, July 18. System forecast to turn northeast, make landfall in South Korea, July 20.

Warning Alert | July 18Danas continues northward in the East China Sea, July 19. System forecast to turn northeast, make landfall in South Korea July 20.

Warning Alert | July 19: Danas tracks north-northeast in the East China Sea, late July 19. Landfall forecast in Jeollanam Province, South Korea, July 20.

Warning Alert | July 20: Danas tracks north-northeast in the East China Sea, morning July 20. Landfall forecast in Jeollanam Province, South Korea.

Warning Alert | July 20: Tropical Depression Danas weakening as it impacts southwestern South Korea, late July 20.


Warning Alert effective July 20 14:58 GMT: Tropical Depression Danas weakening as it impacts southwestern South Korea, late July 20.

This alert began 20 Jul 2019 14:58 GMT and is scheduled to expire 21 Jul 2019 23:59 GMT.

  • Incident: Tropical Depression Danas
  • Center of Circulation: Approximately 62 km (39 miles) northwest of Gwangju, South Korea
  • Maximum Sustained Winds: 25 kts (45 kph, 30 mph)
  • Landfall (Date): Jeolla Province, South Korea (July 20)
  • Affected Areas: Korean Peninsula 

 

Summary

Click to enlarge Google map.

Tropical Depression Danas has weakened considerably as of late July 20. The storm continues to track in a northeastward direction over South Korea after making landfall in Jeolla Province earlier July 20. As of 2100 KST, the system's center of circulation was approximately 62 km (39 miles) northwest of Gwangju, South Korea. Forecast models predict that Danas will continue to weaken through the next 24 hours as it tracks in a northeasterly direction over the southern Korean Peninsula.
 

Hazardous Conditions

Danas will almost certainly bring further heavy rainfall and wind gusts to affected areas through at least end July 21. Authorities have warned that heavy rainfalls are still forecast in Jeolla and Gyeongsang provinces. Sustained heavy rain could trigger flash flooding in low-lying communities near rivers, creeks, and streams, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites downstream of large reservoirs could experience flooding after relatively short periods of intense rainfall. Rain-induced debris flows pose a significant concern in steeply sloped terrains where the soil has become overly saturated.

 

Transport

Inclement weather associated with the system could trigger further localized business, transport, and utility disruptions. Floodwaters and related debris may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Strong winds could down trees or spread debris, which could damage infrastructure (including power lines) or impede access to important thoroughfares. High wind gusts led to flight disruptions across South Korea, July 20. Further disruption is possible; however, as of late July 20, flight services appear to be normalizing. Jeju International Airport (CJU) reopened July 20. Hazardous sea conditions could prompt further ferry service and port operation disruptions. Media reports July 20 indicated that over 100 scheduled ferry trips had been suspended.

 

Advice

Monitor local media for updates on the storm system and related weather advisories. Confirm all transport reservations and business appointments before traveling. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. Stay away from rivers, streams, and steeply sloped terrain due to the threat of flooding and landslides/mudflows. Charge battery-powered devices, and stockpile water and nonperishable food in case of prolonged electricity outages.
 


Warning Alert effective July 20 04:51 GMT: Danas tracks north-northeast in the East China Sea, morning July 20. Landfall forecast in Jeollanam Province, South Korea.

  • Incident: Tropical Storm Danas
  • Center of Circulation: East China Sea, about 209 km (130 miles) south-southwest of Gunsan-si, North Jeolla Province, South Korea
  • Maximum Sustained Winds: 35 kts (65 kph, 40 mph)
  • Projected Landfall (Date): Jeollanam Province, South Korea (July 20)
  • Affected Areas: Coastal eastern China, Korean Peninsula, northwestern Kyushu 

 

Summary

Tropical Storm Danas is continuing north-northeast in the East China Sea as of morning July 20. As of 1200 KST, the system's center of circulation was approximately 209 km (130 miles) south-southwest of Gunsan-si, North Jeolla Province, South Korea. Forecast models predict that Danas will continue shift course to the northeast as it moves across South Korea. Projections indicate the system will make landfall in western Jeollanam Province, South Korea, evening July 20, and then weaken into a tropical depression as it tracks over central South Korea. However, some uncertainty remains in the system's projected path and intensity.

 

Weather Warnings

Reports indicate that authorities evacuated at least 19000 households from Goto Islands in Nagasaki Prefecture, Japan, due to heavy rains. The Korean Meteorological Administration had issued warnings for heavy rain and potentially damaging winds throughout Jeju Island, Gwangju, and Jeollanam Province. Authorities issued storm surge warnings for Jeju Island and coastal areas of Jeollanam Province.

 

Hazardous Conditions

Meteorologists predict Danas will bring heavy rainfall and wind gusts to affected areas. The system may bring up to 30 cm (12 inches) of rainfall to parts of southern South Korea and northwestern Kyushu. Sustained heavy rain could trigger flash flooding in low-lying communities near rivers, creeks, and streams, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites downstream of large reservoirs could experience flooding after relatively short periods of intense rainfall. Rain-induced debris flows pose a significant concern in steeply sloped terrains where the soil has become overly saturated.

 

Transport

Inclement weather associated with the system could trigger localized business, transport, and utility disruptions. Floodwaters and related debris may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Strong winds could down trees or spread debris, which could damage infrastructure (including power lines) or impede access to important thoroughfares. High wind gusts may trigger flight disruptions - including delays and cancellations - at regional airports serving Jeju (CJU) and Gwangju (KWJ). Hazardous sea conditions could prompt the temporary suspension of ferry services and port operations in areas near the storm's path.

 

Advice

Monitor local media for updates on the storm system and related weather advisories. Confirm all transport reservations and business appointments before traveling in affected areas of South Korea. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. Stay away from rivers, streams, and steeply sloped terrain due to the threat of flooding and landslides/mudflows. Charge battery-powered devices, and stockpile water and nonperishable food in case of prolonged electricity outages.

 


Warning Alert effective July 19 15:22 GMT: Danas tracks north-northeast in the East China Sea, late July 19. Landfall forecast in Jeollanam Province, South Korea, July 20.

  • Incident: Tropical Storm Danas
  • Center of Circulation: East China Sea, about 220 km (137 miles) southwest of Jeju Island, South Korea
  • Maximum Sustained Winds: 45 kts (85 kph, 50 mph)
  • Projected Landfall (Date): Jeollanam Province, South Korea (July 20)
  • Affected Areas: Coastal eastern China, Korean Peninsula, northwestern Kyushu 

 

Summary

Tropical Storm Danas has strengthened slightly while tracking north-northeast in the East China Sea late July 19. As of 2100 KST, the system's center of circulation was approximately 220 km (137 miles) southwest of Jeju Island, South Korea. Forecast models predict that Danas will continue shift course to the northeast as it approaches southeastern South Korea. Projections indicate the system will make landfall in western Jeollanam Province, South Korea, July 20, and then weaken into an extratropical low as it tracks over central South Korea. However, some uncertainty remains in the system's projected path and intensity.

 

Weather Warnings
 

The Korean Meteorological Administration has issued warnings for heavy rain and potentially damaging winds throughout Jeju Island, Gwangju, and Jeollanam Province. Storm surge warnings have been issued for Jeju Island and coastal areas of Jeollanam Province.

 

Hazardous Conditions
 

Meteorologists predict Danas will bring heavy rainfall and wind gusts to affected areas. The system may bring up to 30 cm (12 inches) of rainfall to parts of southern South Korea and northwestern Kyushu. Sustained heavy rain could trigger flash flooding in low-lying communities near rivers, creeks, and streams, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites downstream of large reservoirs could experience flooding after relatively short periods of intense rainfall. Rain-induced debris flows pose a significant concern in steeply sloped terrains where the soil has become overly saturated.

 

Transport

Inclement weather associated with the system could trigger localized business, transport, and utility disruptions. Floodwaters and related debris may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Strong winds could down trees or spread debris, which could damage infrastructure (including power lines) or impede access to important thoroughfares. High wind gusts may trigger flight disruptions - including delays and cancellations - at regional airports serving Jeju (CJU) and Gwangju (KWJ). Hazardous sea conditions could prompt the temporary suspension of ferry services and port operations in areas near the storm's path.

 

Advice

Monitor local media for updates on the storm system and related weather advisories. Confirm all transport reservations and business appointments before traveling in affected areas of South Korea. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. Stay away from rivers, streams, and steeply sloped terrain due to the threat of flooding and landslides/mudflows. Charge battery-powered devices, and stockpile water and nonperishable food in case of prolonged electricity outages.
 


Warning Alert effective July 18 21:02 GMT: Danas continues northward in the East China Sea, July 19. System forecast to turn northeast, make landfall in South Korea July 20.

  • Incident: Tropical Storm Danas
  • Center of Circulation: East China Sea, about 312 km (194 miles) east of Wenzhou, China
  • Maximum Sustained Winds: 40 kts (75 kph, 45 mph)
  • Projected Landfall (Date): Jeollanam Province, South Korea (July 20)
  • Affected Areas: Okinawa Prefecture and western Kyushu Island, Japan; coastal eastern China; Korean Peninsula 

 

Summary

Tropical Storm Danas has maintained its strength as it tracks northward in the East China Sea early July 19. As of 0300 JST, the system's center of circulation was approximately 312 km (194 miles) east of Wenzhou, China. Forecast models predict that Danas will shift its course to the north-northeast through July 20. Projections indicate the system will make landfall in western Jeollanam Province, South Korea, July 20, and then weaken into an extratropical low as its tracks over central South Korea. However, the system's projected path and intensity could change in the coming days.

 

Weather Warnings

Japan Meteorological Agency (JMA) has issued warnings for high waves in Okinawa Prefecture, as well as advisories for strong winds, storm surge, heavy rain, and flooding in the southern Ryukyu Islands. China's National Meteorological Center has maintained a blue typhoon warning - the lowest level - for eastern Zhejiang province. As of early July 19, the Korean Meteorological Administration has not issued any notifications. Weather agencies are likely to upgrade or issue new warnings as Danas tracks closer to land in the coming days.

 

Hazardous Conditions

Meteorologists predict Danas will bring heavy rainfall and wind gusts to affected areas. The system may bring up to 30 cm (12 inches) of rainfall to parts of southeast South Korea and western Kyushu. Sustained heavy rain could trigger flash flooding in low-lying communities near rivers, creeks, and streams, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites downstream of large reservoirs could experience flooding after relatively short periods of intense rainfall. Rain-induced debris flows pose a significant concern in steeply sloped terrains where the soil has become overly saturated. Gusty winds and storm surges might also be a concern in coastal areas in far southern Japan through July 19.

 

Transport

Inclement weather associated with the system could trigger localized business, transport, and utility disruptions. Floodwaters and related debris may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Strong winds could down trees or spread debris, which could damage infrastructure (including power lines) or impede access to important thoroughfares. High wind gusts may trigger flight disruptions - including delays and cancellations - at regional airports serving Wenzhou (WNZ) and Ningbo (NGB) in China; Jeju (CJU) and Gwangju (KWJ) in South Korea; and Naha (OKA) in Japan. Hazardous sea conditions could prompt the temporary suspension of ferry services and port operations in areas near the storm's path.

 

Advice

Monitor local media for updates on the storm system and related weather advisories. Confirm all transport reservations and business appointments before traveling in affected areas of South Korea and Japan. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. Stay away from rivers, streams, and steeply sloped terrain due to the threat of flooding and landslides/mudflows. Charge battery-powered devices, and stockpile water and nonperishable food in case of prolonged electricity outages.
 


Warning Alert effective July 18 09:50 GMT: Danas tracking northward in the East China Sea, July 18. System forecast to turn northeast, make landfall in South Korea, July 20.

  • Incident: Tropical Storm Danas
  • Center of Circulation: East China Sea, about 340 km (212 miles) west of Naha, Okinawa, Japan
  • Maximum Sustained Winds: 40 kts (75 kph, 45 mph)
  • Projected Landfall (Date): Jeollanam Province, South Korea (July 20)
  • Affected Areas: Okinawa Prefecture and Kyushu Island, Japan; coastal areas of Fujian and Zhejiang provinces, China; South Korea 

 

Summary

Click to enlarge Google map.

Tropical Storm Danas has strengthened as it tracks northward in the East China Sea the afternoon of July 18. As of 1800, the system's center of circulation was approximately 315 km (195 miles) northeast of Taipei, Taiwan, and 340 km (212 miles) southwest of Naha, Okinawa, Japan. Forecast models predict that Danas will veer east early July 19 and begin to weaken as it tracks northeastward toward South Korea. Projections indicate the system will make landfall in western Jeollanam Province, South Korea, July 20. However, the system's projected path and intensity could change in the coming days.

 

Weather Warnings

Japan Meteorological Agency (JMA) has issued warnings for high waves throughout Okinawa Prefecture, as well as advisories for strong winds, storm surge, and heavy rain in the southern Ryukyu Islands. China's National Meteorological Center has issued a blue typhoon warning - the lowest level - for parts of Fujian and Zhejiang provinces. As of July 18, the Korean Meteorological Administration has not issued any notifications. Weather agencies may upgrade or issue new warnings as Danas tracks closer to land in the coming days.

 

Hazardous Conditions

Meteorologists predict Danas will bring heavy rainfall and wind gusts to affected areas. Sustained heavy rain could trigger flash flooding in low-lying communities near rivers, creeks, and streams, as well as in urban areas with easily overwhelmed stormwater drainage systems. Sites downstream of large reservoirs could experience flooding after relatively short periods of intense rainfall. Rain-induced debris flows pose a significant concern in steeply sloped terrains where the soil has become overly saturated. Gusty winds and storm surges might also be a concern in coastal areas of northern Taiwan and southern Japan through July 18 and southern provinces in South Korea and Kyushu Island in Japan beginning July 20.

 

Transportation Disruptions

Inclement weather associated with the system could trigger localized business, transport, and utility disruptions. Floodwaters and related debris may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Strong winds could down trees or spread debris, which could damage infrastructure (including power lines) or impede access to important thoroughfares. High wind gusts may trigger flight disruptions - including delays and cancellations - at regional airports serving Wenzhou (WNZ) and Ningbo (NGB) in China; Jeju (CJU) and Gwangju (KWJ) in South Korea; and Naha (OKA), Nagasaki (NGS), and Kagoshima (KOJ) in Japan. Hazardous sea conditions could prompt the temporary suspension of ferry services and port operations in areas near the storm's path.

 

Operations Advice

Monitor local media for updates on the storm system and related weather advisories. Confirm all transport reservations and business appointments before traveling in affected areas of South Korea and Japan. Make allowances for localized travel delays and potential supply chain disruptions where severe weather is forecast. Stay away from rivers, streams, and steeply sloped terrain due to the threat of flooding and landslides/mudflows. Charge battery-powered devices, and stockpile water and nonperishable food in case of prolonged electricity outages.


 

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