YES condition: Measurable precipitation (rain) is actively occurring at La Crosse, Kansas (Rush County, KS) at or within the 2-minute window ending at 2:38 PM local time on 2026-05-30, as confirmed by Open-Meteo's historical weather API reporting precipitation > 0 mm for the relevant hour interval at the La Crosse, KS coordinates (38.5817° N, 99.3101° W).

NO condition: Open-Meteo reports 0 mm precipitation for that interval, or no precipitation signal is detected.

Deadline / time window: Resolution is based on weather data for the period ending 2026-05-30T14:38 local (America/Chicago, i.e. La Crosse local time).

Valid evidence / sources: Open-Meteo historical weather API (https://archive-api.open-meteo.com/) queried for La Crosse, KS coordinates, hourly precipitation field. NOAA/Weather.gov current observations for Hays, KS (KHYS) or Russell, KS (KRSL) stations may be used as corroboration.

Invalid evidence / sources: User-submitted photos, screenshots from social media, personal weather station reports not cross-referenced to the above sources, AI-generated weather imagery, or recycled weather photos.

Missing evidence behavior: If the Open-Meteo API returns no data for this window at the deadline, the resolver will wait up to 2 hours for data availability before escalating to admin review.

Fake / edited evidence: Any manipulated screenshot or fabricated API response is rejected; market escalates to admin.

If underlying event is cancelled: Not applicable — weather always occurs.

Escalation: If Open-Meteo and NOAA/KHYS disagree on whether precipitation occurred, market escalates to admin review.

Void conditions: Market may be voided only if Open-Meteo data for this location and time is permanently unavailable and no NOAA station corroboration is possible.

Note: Given the 2-minute window and the hourly resolution of most weather APIs, resolution will use the hourly bucket containing 2:38 PM local time. If Open-Meteo reports any precipitation > 0 mm for the 2 PM–3 PM local hour on 2026-05-30 at La Crosse, KS, YES wins; otherwise NO wins.