Keep corridor weather at corridor scale

src/main.ts

@@ -819,8 +819,12 @@ async function mountCity(id: string) {
    * immediately with `null`, which is climatology, and the observation
    * replaces it when it lands.
    */
+  // Weather observations are metro-scoped for the same reason live aircraft
+  // are: one honest station cannot describe a 600 km corridor. California uses
+  // the local climatology model; the detailed SF and SoCal boards keep their
+  // live observations.
   weatherWatch =
-    access.can.liveEnvironment && access.feeds?.weather
+    id !== "california" && access.can.liveEnvironment && access.feeds?.weather
       ? tera.watchWeather(entry.city.center, () => {
           updateSun();
           renderSource();