Orange heavy-rain watch for Tainan; three reservoir release reds active

19:31 update: Tainan upgraded to orange heavy-rain watch; release-reservoir list changes

Information time: September 14, 2026, 19:31.

Official sources: Central Weather Administration heavy-rain advisory, Water Resources Agency combined alerts, WRA reservoir-release alerts, Taitung Airport live flights, Hualien County Wanli Creek alert-zone notice, Agency of Rural Development and Soil and Water Conservation slope alerts, Directorate General of Highways Highway 7 Daman notice, and Directorate-General of Personnel Administration.

Affected Indigenous areas and alert levels:

• Tainan mountain areas and citywide: The CWA updated its advisory at 16:05, placing both the plains and mountains of Tainan under an orange heavy-rain watch through 23:00. This is weather / watch / orange, not red. Mountain districts and adjacent roads, bridges and streams should watch for landslides, rockfall, rapidly rising water and flooding.
• Dongshan and the earlier thunderstorm area: The WRA live page currently reports no inundation warning. Dongshan’s earlier flood / watch / level-2 has ended without escalating to level one or red. The severe-thunderstorm alert for Dapu and eight Tainan districts expired at 16:33 without a renewal.
• Baoshan Second, Dapu and Hushan reservoirs: The WRA live page lists these three reservoirs as releasing water under red-coded level-one release warnings. Red is confined to the officially listed downstream riverbeds and impact areas along Shijing Creek, Emei Creek and the Beigang River. It does not apply to Jianshi, Wufeng, Heping, Ren'ai, Xinyi, Alishan or another unlisted Indigenous area, and does not mean an entire listed township is under a blanket red alert. Zengwen Reservoir is no longer on the active list.
• Existing status: The Wanli Creek access-restriction / watch remains valid through 20:00. It is not a resident evacuation order or a blanket red alert for Wanrong. Highway 7 at 48.9K in Daman, Fuxing, remains closed under transport / watch. At 19:18, Taitung Airport’s live page no longer displayed a cancelled or delayed Lanyu flight, so the earlier transport watch returns to monitoring; airline notices still govern.

Nationwide assessment:

• North: The Baoshan Second and Dapu release reds apply only to listed downstream areas along Shijing and Emei creeks, not Jianshi or Wufeng. The Fuxing road closure continues. No other threshold-level change was found for Wulai, Nanzhuang or Tai'an.
• Central: The Hushan release red applies only to listed downstream Beigang River areas, not Heping, Ren'ai, Xinyi or Alishan. No new official road, bridge, evacuation, shelter or public-service change was found for the other covered central Indigenous areas.
• South: Tainan’s plains and mountains have been upgraded to an orange heavy-rain watch. The Dongshan level-two flood watch and severe-thunderstorm alert have ended, and no level-one inundation warning is active. No new slope-alert escalation, formal rapid-rise warning, evacuation, shelter opening, school closure, transport suspension or major public-service interruption was found for the covered Kaohsiung and Pingtung Indigenous areas.
• East: The Wanli Creek access watch remains through 20:00. Lanyu’s earlier flight disruption has returned to monitoring. No new heavy-rain, level-one inundation, slope-alert, road, bridge, school, shelter or utility change was found for Datong, Nan'ao or the other covered Hualien and Taitung Indigenous areas.

No level-one inundation warning, debris-flow or large-scale-landslide red/yellow escalation, resident evacuation, shelter opening, school-level closure, major agricultural-loss warning or new major Indigenous-area public-service interruption was found. At 19:10, the DGPA reported no work or class suspensions.

Recommended action: In Tainan’s orange heavy-rain area, stay away from streams, riverbeds, low-lying ground and unstable slopes. Leave the listed downstream riverbeds below the three releasing reservoirs. Do not enter the Wanli Creek alert zone. Highway 7 at Daman remains closed. Official real-time notices govern.

16:07 update: Tainan thunderstorm and Dongshan level-two flood watch; three release reds continue

Information time: September 14, 2026, 16:07.

Official sources: 15:33 CWA severe thunderstorm alert, 15:28 CWA heavy-rain advisory, 15:57 WRA Dongshan flood warning, 13:18 WRA Zengwen Reservoir release warning, 14:18 WRA Hushan Reservoir release warning, 15:08 WRA Baoshan Second Reservoir release warning, 11:18 final WRA Deyuan Pond release warning, Taitung Airport live flights, Hualien County Wanli Creek alert-zone notice, live NCDR alerts, Agency of Rural Development and Soil and Water Conservation slope-hazard alerts, Directorate General of Highways Highway 7 Daman notice, and Directorate-General of Personnel Administration.

Affected Indigenous areas and levels:

• Dapu, Chiayi, and eight Tainan districts: The CWA issued a severe thunderstorm alert at 15:33 for Dapu and Zhongpu in Chiayi, and Liujia, Danei, Guantian, Dongshan, Liuying, Nanxi, Yujing and Baihe in Tainan. It is valid through 16:33 and classified as weather / watch / orange, not red. Dapu borders Alishan, but Alishan is not listed in this thunderstorm alert.
• Tainan mountain areas and the city: The CWA's 15:28 yellow heavy-rain advisory covers all of Tainan, including the mountain and hill districts of Nanhua, Nanxi, Yujing, Zuozhen, Longqi and Dongshan, through 23:00. It is weather / watch / yellow, not red. Mountain areas should watch for landslides, rockfall, rapidly rising streams and low-lying flooding.
• Dongshan District, Tainan: The WRA issued a level-two inundation warning at 15:57 after Dongyuan Station recorded more than 60 millimetres in one hour. The listed villages include Dongyuan, Lingnan, Lin'an, Nanxi, Keli, Nanshi, Qingshan, Shuiyun, Gaoyuan and Dake. It is valid through 18:58 and classified as flood / watch / level-2. This is not a level-one inundation warning and not red.
• Zengwen, Hushan and Baoshan Second reservoirs: Their red-coded level-one release warnings continue through 16:18:40, 17:18:40 and 18:08:40 respectively. Red is confined to officially listed downstream riverbeds and impact areas along the Zengwen, Beigang and Shijing rivers. It does not apply to Alishan, Heping, Ren'ai, Xinyi, Jianshi, Wufeng or another unlisted Indigenous area, and does not mean an entire listed township is under blanket red. The final Deyuan Pond warning expired at 14:18:40 without a renewal and is no longer listed as an active red; expiry does not independently authorize riverbed entry.
• Existing status: The Silin Village water-outage CAP expired at 16:00 without a renewal and returns to utility / monitoring; actual restoration remains subject to the water company's notice. At 15:44, Taitung Airport's board still showed two delayed Lanyu flights, under transport / watch. The Wanli Creek alert zone remains under access-restriction / watch through 20:00. Highway 7 at 48.9K in Daman, Fuxing, remains closed under transport / watch.

Nationwide assessment:

• North: Baoshan Second red is limited to the officially listed Shijing Creek downstream areas, not Jianshi or Wufeng; the Fuxing road closure continues. No new heavy-rain, thunderstorm, level-one inundation, slope-alert escalation, evacuation, shelter, school or utility change was found for Wulai, Nanzhuang or Tai'an.
• Central: Hushan red is limited to the listed Beigang River downstream areas, not Heping, Ren'ai, Xinyi or Alishan. Dapu is under the thunderstorm watch, but Alishan is not in the alert area. No other new road, bridge, evacuation, shelter or public-service change was found for the covered central Indigenous areas.
• South: All of Tainan is under yellow heavy-rain watch; Dapu and eight Tainan districts are under an orange thunderstorm watch; and Dongshan is under a level-two flood watch. None may be mislabeled as a level-one inundation alert or blanket red for Indigenous areas. Zengwen red remains limited to listed downstream riverbeds. No new slope escalation, evacuation, shelter, school closure, transport suspension or major public-service interruption was found for the other covered Kaohsiung and Pingtung Indigenous areas.
• East: Lanyu flights remain under transport watch, and the Wanli Creek access watch continues. No new heavy-rain, level-one inundation, slope-alert escalation, road, bridge, school, shelter or utility change was found for Datong, Nan'ao or the other covered Hualien and Taitung Indigenous areas.

No level-one inundation warning, debris-flow or large-scale-landslide red/yellow escalation, resident evacuation, shelter opening, school-level closure, major agricultural loss or new major Indigenous-area public-service interruption was found. At 15:37, the DGPA still reported no work or class suspensions.

Recommended action: Avoid streams, riverbeds, low-lying areas and unstable slopes within the thunderstorm and heavy-rain areas. In Dongshan's listed level-two flood-watch villages, follow WRA and local-government instructions and avoid flooded roads. Stay away from the listed downstream riverbeds under release red. Lanyu passengers should confirm live flights. Do not enter the Wanli Creek alert zone. Highway 7 at Daman remains closed. Official real-time notices govern.

11:51 update: Mudan water outage and Lanyu flight changes; four release reds active

Information time: September 14, 2026, 11:51.

Official sources: 09:18 WRA Zengwen release warning, 10:18 WRA Hushan warning, 11:18 WRA Baoshan Second warning, 11:18 WRA Deyuan Pond warning, 11:30 Taiwan Water Corporation Mudan outage, 10:43 CWA strong-wind advisory, Taitung Airport live flights, Hualien County Wanli Creek notice, live NCDR alerts, slope-hazard alerts, Highway 7 Daman notice, and DGPA.

Affected Indigenous areas and levels:

• Zengwen, Hushan and Baoshan Second reservoirs, and Deyuan Pond: Red-coded level-one release warnings are active. Zengwen is valid through 12:18:40, Hushan through 13:18:40, and Baoshan Second and Deyuan through 14:18:40. Red is confined to officially listed downstream riverbeds and impact areas. It does not apply to Alishan, Heping, Ren'ai, Xinyi, Jianshi, Wufeng or another unlisted Indigenous area, and does not mean an entire listed township is under a blanket red alert.
• Mudan, Pingtung: A pipe-break repair affects Silin Village in Mudan and Changle Village in Manzhou through an estimated 16:00. This is utility / watch, not red. Users should store water and switch off pump power.
• Lanyu transport: At 11:41, Taitung Airport's official board showed three cancelled and two delayed Daily Air flights on the Lanyu route. This is transport / watch, not red. Passengers should confirm live status before departure.
• Land strong wind: The 10:43 yellow advisory runs through 23:00 on September 15 and lists Chenggong and Changbin in Taitung and Hengchun and Manzhou in Pingtung. All are weather / watch / yellow, not red. Lanyu is no longer in this advisory and returns to weather / monitoring.
• Existing status: The Wanli Creek alert zone remains under access-restriction / watch through 20:00 and is not a resident evacuation order or a blanket Wanrong red. Highway 7 at Daman remains closed under transport / watch. The overnight earthquakes remain under monitoring, with no new official Indigenous-area infrastructure or utility damage found.

Nationwide assessment:

• North: Baoshan Second red is limited to listed downstream areas in Baoshan, Emei and Hsinchu City, not Jianshi or Wufeng; the Fuxing closure continues. The yellow wind zones are coastal and do not extend to the covered northern mountain Indigenous areas.
• Central: Hushan red is limited to listed Beigang River downstream areas, not Heping, Ren'ai, Xinyi or Alishan. The yellow wind zones cover listed coastal Taichung districts, not Heping.
• South: Zengwen and Deyuan reds are limited to listed downstream riverbeds. Silin Village, Mudan, is under utility watch; Hengchun and Manzhou are under yellow wind watch. No other threshold-level change was found for covered Kaohsiung and Pingtung Indigenous areas.
• East: Chenggong and Changbin are under yellow wind watch. Lanyu is no longer in the wind advisory, but its air route has cancellations and delays under transport watch. The Wanli Creek access watch continues. No other official infrastructure or utility damage was found.

No new heavy-rain advisory, thunderstorm alert, level-one inundation warning, debris-flow or large-scale-landslide escalation, resident evacuation, shelter opening, school-level closure, major agricultural loss or another Indigenous-area public-service disruption was found. At 11:40 on September 14, the DGPA reported no work or class suspensions.

Recommended action: Stay away from riverbeds in the listed release-warning areas. In Silin Village, store water and follow restoration updates. Lanyu passengers should confirm flights. Secure outdoor items in yellow wind zones. Do not enter the Wanli Creek alert zone. Highway 7 at Daman remains closed. Official real-time notices govern.

08:24 update: Three reservoir release reds active; Wanli Creek access watch reissued

Information time: September 14, 2026, 08:24.

Official sources: 07:18 Water Resources Agency Zengwen Reservoir release warning, 08:18 WRA Hushan Reservoir release warning, 07:08 WRA Baoshan Second Reservoir release warning, 08:02 Hualien County Wanli Creek alert-zone notice, 06:49 Central Weather Administration earthquake report, 04:26 CWA land strong-wind advisory, live NCDR alerts, Forestry and Nature Conservation Agency barrier-lake monitoring, Agency of Rural Development and Soil and Water Conservation slope-hazard alerts, Directorate General of Highways Highway 7 Daman notice, and Directorate-General of Personnel Administration.

Affected Indigenous areas and levels:

• Zengwen, Hushan and Baoshan Second reservoirs: The WRA reissued red-coded level-one release warnings. Zengwen is valid through 10:18:40, Hushan through 11:18:40 and Baoshan Second through 10:08:40. Red is confined to the officially listed downstream riverbeds and impact areas along the Zengwen, Beigang and Shijing rivers. It does not apply to Alishan, Heping, Ren'ai, Xinyi, Jianshi, Wufeng or another unlisted Indigenous area, and does not mean an entire listed township is under a blanket red alert.
• Wanli Creek, Hualien: Hualien County reissued its alert-zone notice at 08:02, valid through 20:00. The landslide-dammed lake is overflowing stably but residual uncertainty remains. Entry to the embankment surroundings, riverbed and county-designated alert zone is prohibited under access-restriction / watch. This is not a resident evacuation order and not a blanket red alert for Wanrong Township.
• Southeastern offshore earthquake: A magnitude 4.9 felt earthquake occurred at 06:44. Maximum intensity was 4 on Green Island, Taitung, and 3 in Hualien County. It is classified as earthquake / monitoring. At 08:14, no official road, bridge, school, shelter, water, power or transport change had appeared for Lanyu or covered Taitung and Hualien Indigenous areas. The earthquake report alone is not being upgraded to red.
• Existing status: Lanyu's yellow land strong-wind advisory was updated at 04:26 and remains weather / watch / yellow through 23:00, with no transport-authority ferry or flight suspension found. Highway 7 at 48.9K in Daman, Fuxing, remains closed under transport / watch.

Nationwide assessment:

• North: The Baoshan Second red-coded warning applies only to the officially listed downstream areas in Baoshan, Emei and Hsinchu City, not Jianshi or Wufeng. The Fuxing road closure continues. No new heavy-rain, level-one inundation, slope-alert escalation, evacuation, shelter or public-service interruption was found for Wulai, Nanzhuang or Tai'an.
• Central: The Hushan red-coded warning applies only to the officially listed Beigang River downstream areas, not Heping, Ren'ai, Xinyi or Alishan. No new heavy-rain, level-one inundation, slope-alert escalation or public-service interruption was found for the other covered central Indigenous areas.
• South: The Zengwen red-coded warning applies only to the officially listed downstream areas in Tainan and Dapu, Chiayi, not Alishan. No new heavy-rain, level-one inundation, slope-alert escalation, evacuation, shelter or major public-service interruption was found for Taoyuan, Namasia, Maolin or the covered Pingtung Indigenous areas.
• East: The Wanli Creek alert zone remains under access-restriction watch through 20:00, and Lanyu's yellow wind watch continues through 23:00. The M4.9 offshore earthquake is under monitoring. No new official road, bridge, school, shelter, transport or utility change was found for Datong, Nan'ao or the other covered Hualien and Taitung Indigenous areas.

No new heavy-rain advisory, thunderstorm alert, level-one inundation warning, debris-flow or large-scale-landslide red/yellow escalation, resident evacuation, shelter opening, school-level closure, transport suspension, major agricultural loss, disaster-caused utility outage or other major public-service interruption was found. At 08:04 on September 14, the DGPA reported no work or class suspensions.

Recommended action: Stay away from riverbeds in the listed Zengwen, Hushan and Baoshan Second release-warning areas. Do not enter the Wanli Creek embankment surroundings, riverbed or designated alert zone. In eastern Taiwan and the offshore islands, remain alert for aftershocks. In Lanyu, secure outdoor items and check live ferry and flight status. Highway 7 at Daman remains closed. Official real-time notices govern.

03:50 update: Zengwen release red expires; M4.7 Wanrong earthquake monitored

Information time: September 14, 2026, 03:50.

Official sources: 02:18 Water Resources Agency Hushan Reservoir release warning, 02:18 WRA Baoshan Second Reservoir release warning, 00:28 final Zengwen Reservoir release warning, 03:26 Central Weather Administration earthquake report, live NCDR alerts, CWA land strong-wind advisory, Forestry and Nature Conservation Agency barrier-lake monitoring, Agency of Rural Development and Soil and Water Conservation slope-hazard alerts, Directorate General of Highways Highway 7 Daman notice, and Directorate-General of Personnel Administration.

Affected Indigenous areas and levels:

• Zengwen Reservoir: The level-one release warning issued at 00:28 expired at 03:28:40. No renewal appeared in the live NCDR feed by this scan, so the release-warning red for the formerly listed downstream corridors has ended. Expiry does not mean riverbeds may be entered freely; on-site authority notices still govern.
• Hushan and Baoshan Second reservoirs: Their red-coded level-one release warnings were renewed at 02:18 and remain valid through 05:18:40. Red is confined to the officially listed downstream riverbeds and impact areas along the Beigang and Shijing rivers. It does not apply to Heping, Ren'ai, Xinyi, Alishan, Jianshi, Wufeng or another unlisted Indigenous area, and does not mean an entire listed township is under a blanket red alert.
• Wanrong, Hualien: A magnitude 4.7 felt earthquake occurred at 03:21, with maximum intensity 4 in Wanrong, Hualien, and Yushan, Nantou. It is classified as earthquake / monitoring. At 03:50, no official Indigenous-area road, bridge, school, shelter, water, power or transport change had appeared. Any later authority damage report will be reflected from the official notice; the earthquake report alone is not being upgraded to red.
• Existing status: Lanyu's yellow land strong-wind advisory remains weather / watch / yellow through 23:00, with no transport-authority ferry or flight suspension found. Highway 7 at 48.9K in Daman, Fuxing, remains closed under transport / watch. Wanli Creek remains barrier-lake / monitoring.

Nationwide assessment:

• North: The Baoshan Second red-coded warning applies only to the officially listed downstream areas in Baoshan, Emei and Hsinchu City, not Jianshi or Wufeng. The Fuxing road closure continues. No new heavy-rain, level-one inundation, slope-alert escalation or public-service interruption was found for Wulai, Nanzhuang or Tai'an.
• Central: The Hushan red-coded warning applies only to the officially listed Beigang River downstream areas, not Heping, Ren'ai, Xinyi or Alishan. Intensity 4 at Yushan, Nantou, is under monitoring, with no official road, school or utility change found.
• South: The Zengwen release-warning red has expired without renewal. Taoyuan, Namasia and Maolin remain under monitoring. No new heavy-rain, level-one inundation, slope-alert escalation, evacuation, shelter or major public-service interruption was found for the covered Tainan mountain and Pingtung Indigenous areas.
• East: The Wanrong M4.7 earthquake is under monitoring. Wanli Creek remains under monitoring and Lanyu remains under a yellow wind watch. No new official road, bridge, school, shelter, transport or utility change was found for Datong, Nan'ao or the other covered Hualien and Taitung Indigenous areas.

No new heavy-rain advisory, thunderstorm alert, level-one inundation warning, debris-flow or large-scale-landslide red/yellow escalation, resident evacuation, shelter opening, school-level closure, transport suspension, major agricultural loss, disaster-caused utility outage or other major public-service interruption was found. At 03:49 on September 14, the DGPA reported no work or class suspensions.

Recommended action: Stay away from riverbeds in the listed Hushan and Baoshan Second release-warning areas. In Wanrong and nearby mountain areas, remain alert for aftershocks and follow local-government or authority instructions if rockfall, road damage or public-service disruption appears. In Lanyu, secure outdoor items and check live ferry and flight status. Highway 7 at Daman remains closed. Official real-time notices govern.

00:29 initial brief

Information time: September 14, 2026, 00:29.

Official sources: 23:52 Central Weather Administration heavy-rain cancellation, 22:31 CWA land strong-wind advisory, 00:28 Water Resources Agency Zengwen Reservoir release warning, 00:18 Hushan Reservoir release warning, 00:08 Baoshan Second Reservoir release warning, live NCDR alerts, Forestry and Nature Conservation Agency barrier-lake monitoring, Agency of Rural Development and Soil and Water Conservation slope-hazard alerts, Directorate General of Highways Highway 7 Daman notice, and Directorate-General of Personnel Administration.

Affected Indigenous areas and levels: The CWA lifted its heavy-rain advisory at 23:40 on September 13. The `weather / watch / yellow` status for Taoyuan, Namasia and Maolin in Kaohsiung has ended and returned to `monitoring`; this was not the lifting of a red alert. The WRA renewed the red-coded level-one release warnings for Zengwen, Hushan and Baoshan Second reservoirs through 03:29, 03:19 and 03:09 respectively. Red applies only to the officially listed downstream riverbeds and impact corridors. It does not apply to Jianshi, Wufeng, Alishan or another unlisted Indigenous area, and does not mean an entire listed township is under a blanket red alert.

The yellow land strong-wind advisory for Lanyu has been updated through 23:00 on September 14 and remains `weather / watch / yellow, not red`. No ferry or flight suspension notice from a transport authority was found. The September 13 Wanli Creek alert-zone CAP expired at 20:00 without a renewed entry in this scan, so Wanli Creek returns to `barrier-lake / monitoring`; this does not independently declare the former alert zone open, and on-site authority notices still govern. Highway 7 at 48.9K in Daman, Fuxing, remains closed under `transport / watch, not red`.

Nationwide assessment:

• North: The Baoshan Second red-coded warning is confined to the listed downstream areas in Baoshan, Emei and Hsinchu City and does not apply to Jianshi or Wufeng. The Fuxing road closure continues. No new threshold-level change was found for Wulai, Nanzhuang or Tai'an.
• Central: The Hushan warning is confined to listed downstream Beigang River areas and does not apply to Heping, Ren'ai, Xinyi or Alishan. No new heavy-rain, level-one inundation or slope-alert escalation was found.
• South: The heavy-rain watches for Taoyuan, Namasia and Maolin have ended. The Zengwen red-coded warning is confined to listed downstream areas in the Tainan mountains and Dapu, Chiayi. No new threshold-level change was found for the covered Pingtung Indigenous areas.
• East: Lanyu's yellow wind watch continues, while Wanli Creek returns to monitoring. No new threshold-level change was found for Datong, Nan'ao or the other covered Hualien and Taitung Indigenous areas.

No new level-one inundation warning, debris-flow or large-scale-landslide red/yellow escalation, resident evacuation, shelter opening, school-level closure, transport suspension, major agricultural loss, disaster-caused utility outage or other major public-service interruption was found. At 00:25 on September 14, the DGPA reported no work or class suspensions.

Recommended action: Stay away from riverbeds in the listed Zengwen, Hushan and Baoshan Second release-warning areas. In Lanyu, secure outdoor items and check live ferry and flight status. Highway 7 at Daman remains closed. Official real-time notices govern.