Will Oregon reach D4 (Exceptional Drought) by August 31, 2026? [ resolves 2026-09-01 (28D) ]
Will Oregon reach D4 (Exceptional Drought) by August 31, 2026?
polymarket: [A] single source·objective outcome methodology ›
markets · by resolution date · marks: daily snapshot
polymarket 1 market
| market | resolves | P(YES) | vol (24h) | vol (cum) | RCG | venue id | ||
|---|---|---|---|---|---|---|---|---|
| Will Oregon reach D4 (Exceptional Drought) by August 31, 2026 | 2026-09-01 | 26.0% | $6 | $17K | A | 0xd0e661…8075 |
resolution architecture
| venue | proposer | source | citation | arbitration | class | analyst notes |
|---|---|---|---|---|---|---|
| polymarket | Whitelisted Proposers | not provided | link | Optimistic Oracle (UMA) | Other | — |
verbatim rules
polymarket
This market will resolve "Yes" if the D4 Exceptional Drought value shown in the official U.S. Drought Monitor's weekly "Categorical Percent Area" statistics table for Oregon published by the National Drought Mitigation Center at https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4 is 1.00% or greater in any weekly release published from market creation through August 31, 2026, 11:59:59 PM ET. Otherwise, this market will resolve "No". D4 Exceptional Drought is defined as described at https://droughtmonitor.unl.edu/About/AbouttheData.aspx.
"Oregon" means the entire State of Oregon as recognized under U.S. law.
Eligibility is determined solely by the release's publication date, not the date its underlying map data is valid "as of" (USDM releases are typically published on Thursday but reflect conditions as of the preceding Tuesday), except as provided in the force majeure clause below.
Upon a qualifying release, the market will be held open for 7 calendar days from its publication date before finalizing, to allow for NDMC corrections. If those 7 days elapse before August 31, settlement finalizes at that point. If the qualifying release is published within 7 days of August 31, including on August 31 itself, the market will remain open past August 31 for the balance of that window, resolving at the earlier of (i) the 7 days elapsing or (ii) NDMC issuing a correction to that release. This holding period does not extend the publication-date cutoff, it only delays finalization of a release that already qualified.
If the NDMC publishes no weekly release at all before August 31, 2026, 11:59 PM ET, due to a data disruption, government shutdown, or other event, this market will accept the next official weekly release published after that date as the sole governing release, up to 14 calendar days following the scheduled expiration date, and will resolve "Yes" or "No" based on that release's D4 value under the same 1.00% threshold.
A correction will be considered only if issued before the market finalizes settlement under the holding period above. Once finalized, that determination is final and will not be revised, reopened, or reversed by any correction, revision, or retraction issued afterward. A correction issued within the holding period is fully applied to the D4 value used for resolution, and that finalization occurs after (not at the instant of) any such correction, so the corrected value governs.
platform source field
polymarket.description → https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4 sources (4) · single authority
- droughtmonitor.unl.edu venue-listed
- droughtmonitor.unl.edu venue-listed
- U.S. Drought Monitor's weekly "Categorical Percent Area" statistics table for Oregon published by the National Drought Mitigation Center at https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4 from rules text · editorial
- https://droughtmonitor.unl.edu/About/AbouttheData.aspx from rules text · editorial
recent wire items
monitoring status: active no active wire
No CM Signal wire has been published for this event yet.
CM Signal’s news-cycle scan surfaces the day’s top stories alongside the prediction markets pricing them. When a story references this event, its wire is published here and links back to this page.
programmatic access · four surfaces, same payload
One canonical record at every surface — embedded JSON-LD, REST, MCP, and /llms.txt.
| HTML | browsers, AI grounded search, crawlers (embedded JSON-LD @type: Dataset) | https://clearmarket.fyi/events/will-oregon-reach-d4-exceptional-drought-by-august-31-2026-20260721193813646/ |
| JSON | REST API for developers | https://api.clearmarket.fyi/v1/events/will-oregon-reach-d4-exceptional-drought-by-august-31-2026-20260721193813646 |
| MCP | agentic AI tool call (Claude Desktop, Cursor, Continue) | clearmarket.get_event("will-oregon-reach-d4-exceptional-drought-by-august-31-2026-20260721193813646") |
| AGENT | AI crawler discovery index | /llms.txt |
Snapshot 2026-08-04. Venue data via Kalshi + Polymarket APIs. Editorial fields (tags, editorial_notes) are ClearMarket-drafted with AI assistance under editorial review. Derived fields (venues_covered, resolution_clarity_grade, rcg_score) computed at serve time. Full per-field map in the JSON record under field_provenance.
raw JSON record · same payload returned by REST endpoint {
"event_id": "CM-EVT-1Y235JS022",
"slug": "will-oregon-reach-d4-exceptional-drought-by-august-31-2026-20260721193813646",
"question": "Will Oregon reach D4 (Exceptional Drought) by August 31, 2026?",
"category": "climate",
"tags": [
"climate",
"drought",
"oregon",
"weather-extremes",
"2026",
"us-regional"
],
"venues_covered": [
"polymarket"
],
"market_count": 1,
"cumulative_volume_usd": 17326,
"resolution_clarity_grade": "A",
"rcg_score": 93,
"rcg_caps": [],
"resolution_source": null,
"resolution_source_url": "https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4",
"source_status": "platform_named",
"source_of_record": "U.S. Drought Monitor",
"resolution_source_list": [
{
"name": "droughtmonitor.unl.edu",
"url": "https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4",
"provenance": "platform_api"
},
{
"name": "droughtmonitor.unl.edu",
"url": "https://droughtmonitor.unl.edu/About/AbouttheData.aspx",
"provenance": "platform_api"
},
{
"name": "U.S. Drought Monitor's weekly \"Categorical Percent Area\" statistics table for Oregon published by the National Drought Mitigation Center at https://droughtmonitor.unl.edu/DmData/DataTables.aspx?dregion,4",
"url": null,
"provenance": "clearmarket_editorial"
},
{
"name": "https://droughtmonitor.unl.edu/About/AbouttheData.aspx",
"url": null,
"provenance": "clearmarket_editorial"
}
],
"arbitration_model": "uma_oracle",
"proposer_model": "managed_whitelist",
"field_provenance": {
"question": {
"source": "clearmarket_editorial"
},
"tags": {
"source": "clearmarket_editorial",
"ai_drafted": true
},
"resolution_clarity_grade": {
"source": "derived",
"method": "rcg_v2_7factor"
},
"venues_covered": {
"source": "derived"
}
}
}