陕西大雾安全 · Shaanxi fog safety

陕西大雾黄色预警覆盖西安南部与秦巴山区：清晨观鸟何时取消、怎样记录能见度

Shaanxi Yellow Fog Warning Covers Southern Xi’an and the Qinba Mountains: When to Cancel Dawn Birding and How to Log Visibility

陕西省气象台9月29日22时18分继续发布大雾黄色预警，预计未来12小时西安长安、鄠邑、蓝田、周至以及秦巴山区等地出现500—1000米能见度，局地不足500米。本文给出取消山路与水边行程、改用城市公开点和记录低能见度偏差的方法。
At 22:18 on September 29, the Shaanxi Meteorological Observatory continued a yellow fog warning for the next 12 hours, forecasting visibility of 500–1,000 metres and locally below 500 metres in Chang'an, Huyi, Lantian and Zhouzhi in Xi’an and across the Qinba Mountains, among other areas. This guide covers cancelling mountain and waterside outings, switching to open urban sites and recording low-visibility bias.

发布 Published 2026-09-30 · 来源日期 Source 2026-09-29 22:18（预警有效期以气象部门更新为准）
Shaanxi Yellow Fog Warning Covers Southern Xi’an and the Qinba Mountains: When to Cancel Dawn Birding and How to Log Visibility
适合季节 · SEASON

2026年9月30日清晨预警时段及类似秋季低能见度天气；每次出发前以最新气象预警为准
The warning period on the morning of 30 September 2026 and similar low-visibility autumn weather; always use the latest meteorological warning before departure

地点范围 · AREA

陕西受大雾预警影响地区，重点包括西安长安、鄠邑、蓝田、周至和秦巴山区；不进入封闭山路、河岸、库区或无护栏水边
Fog-affected parts of Shaanxi, especially Chang'an, Huyi, Lantian and Zhouzhi in Xi’an and the Qinba Mountains; avoid closed mountain roads, riverbanks, reservoirs and unguarded water edges

涉及鸟种 · SPECIES

原始来源未公开具体鸟种
Species not listed by the source

中文 · CHINESE

预警意味着先改交通和地点

预警给出的500—1000米、局地不足500米是区域能见度判断，不等于每条路线都相同。山区弯道、临水步道、桥面和低洼地可能更差；清晨自驾、包车或步行进入秦岭支路不应只凭城市起点的视野决定。

在预警影响时段，优先取消需要走山路、临崖路、库岸或无人管理湿地的计划。若仍需观察，只选白天开放、交通清晰、有护栏和管理人员的城市公园，且把是否出发交给最新官方预警和现场管控。

出现四个信号就停止行程

看不清道路标线、前车灯或步道边缘，镜片持续结露，听见鸟声却无法判断安全距离，或同行者开始掉队，任何一项都足以结束观察。不要为补清单跨护栏、靠近水边或循声进入林下。

车辆降低速度并使用合法停车点，绝不因突然看见鸟而急停；徒步者穿反光外层、携带照明并保持结伴。管理部门封路、劝返或关闭入口时直接执行，不等待雾散后自行闯入。

低能见度记录怎样保持可用

记录开始和结束时间、地点到公园或乡镇级、估计能见度、雾是否变化、观察方式与有效时长。只凭声音的记录标注声闻；无法排除相似种时保留未定，不用鸟鸣回放逼鸟现身。

雾会降低探测距离并改变可见鸟种比例，因此清单短不等于鸟少。将低能见度写进备注，保留零记录和取消记录，避免与晴天样本直接比较，也不要公布敏感鸟的声源精确位置。

ENGLISH · 英文

Change transport and site before doing anything else

The warning's 500–1,000 metres, locally below 500 metres, is an area-level visibility forecast, not a promise of identical conditions on every route. Mountain bends, waterside paths, bridges and hollows can be worse. A dawn drive or walk onto a Qinling side road must not be judged only by visibility at the urban departure point.

During the warning, cancel plans requiring mountain roads, cliff edges, reservoir shores or unmanaged wetlands. If observing at all, use only a daylight-open urban park with clear access, railings and staff, and let the latest official warning and on-site control decide whether to go.

Four stop signals

End the outing if road markings, a vehicle ahead or the path edge is unclear; optics keep fogging; a call cannot be approached at a safe distance; or a group member begins to fall behind. Never cross a barrier, approach water or follow sound into woodland to fill a list.

Drivers should slow down and use legal parking only, never braking suddenly for a bird. Walkers need reflective outerwear, a light and a companion. Obey every closure or turn-back instruction instead of waiting nearby and entering when fog seems thinner.

Keeping low-visibility records usable

Log start and end time, locality only to park or township level, estimated visibility, fog trend, method and effective effort. Mark sound-only records as heard. Leave similar species unresolved and never use playback to force a bird into view.

Fog reduces detection distance and changes the visible species mix, so a shorter list does not mean fewer birds. Note visibility, retain zero and cancelled records, avoid direct comparison with clear-weather samples, and never publish an exact sound source for a sensitive bird.