SEV3 — ElevatedCLOSEDWeather✓ Corroborated · 5 sources2d ago

Tornado Warning — Mitchell, IA; Mower, MN

Tornado warnings are active for Mitchell County, IA and Mower County, MN, with a duplicate signal received. A separate extreme heat advisory covers the Tarragona depression area in Spain. News coverage references a super typhoon impacting Taiwan and a U.S. Pacific territory. None of these locations intersect with known contact-center or knowledge-worker operations footprints.

Impact Summary

Tornado warnings are active for Mitchell County, IA and Mower County, MN, with a duplicate signal received. A separate extreme heat advisory covers the Tarragona depression area in Spain. News coverage references a super typhoon impacting Taiwan and a U.S. Pacific territory. None of these locations intersect with known contact-center or knowledge-worker operations footprints.

Domain
Weather
Region
DepresióN Central De Tarragona, DepresióN Central De Tarragona
Opened By
watchkeeper
Jul 8, 2026, 10:30 PM UTC
Validated By
auto
Jul 8, 2026, 10:30 PM UTC
Event Cluster
4 events
OVIX Score
10.0
Closed
watchkeeper-auto(resolved)
Jul 10, 2026, 11:00 AM UTC

Timeline5

⚠
Incident openedby watchkeeperJul 8, 2026, 10:30 PM UTC
Declared from 3 signals. OVIX 10. News 1. BPO 0. Acute severe-weather floor (agents-028): authoritative short-fuse warning, declared at SEV3 regardless of resolved BPO footprint.
✓
Severity validatedby autoJul 8, 2026, 10:30 PM UTC
Auto-validated: SEV3 per policy.
✎
Note addedby watchkeeperJul 8, 2026, 10:30 PM UTC
External corroboration: corroborated (5 sources via Exa). trafico.live, news-usa.today, kttc.com, wjon.com, kimt.com
✎
Note addedby watchkeeperJul 8, 2026, 11:00 PM UTC
Merged new cluster (2 signals, OVIX 10) — same domain, active <24h.
✖
Incident closedby watchkeeperJul 10, 2026, 11:00 AM UTC
Auto-closed: no new material events within 36h for this incident.

Evidence / Why this?

Traced to source — read-onlyUpdated Jul 8, 10:30 PM UTC
Why declareddeclareHybrid
Incident declaration (deterministic floor + LLM relevance gate)v1
DECLARE when deterministicFloor AND (llm.declare OR acuteWeatherFloor) AND NOT aggregateTitle, and no open same-domain incident merges it. deterministicFloor = maxSeverity>=8 AND (newsScore>=1 OR bpoScore>=1 OR acuteWeatherFloor). acuteWeatherFloor = maxSeverity>=9 AND any signal is an acute severe-weather WARNING (tornado/severe-thunderstorm/flash-flood) — overrides the LLM footprint-based suppression. aggregateTitle (grab-bag "Multiple/Several/Various…") is refused (agents-019 §D). Asset-class deny (military/war-zone, WFM-37) suppresses earlier. cyberFloor disabled (agents-009 hotfix).
domain
weather
regions
["DepresióN Central De Tarragona","Mitchell, IA; Mower, MN"]
bpo score
0
news score
1
llm declare
no
max severity
10
signal count
3
llm rationale
Operations footprint confirmed absent across all affected regions (Tarragona, rural Iowa/Minnesota, and typhoon-affected Pacific territories), meeting suppression criterion (a); declare:false.
aggregate title
no
high confidence
yes
acute weather floor
yes
deterministic floor
yes
model claude-sonnet-4-6 · prompt watchkeeper-declare-2026-06
Why SEV3SEV3score 3Deterministic
Incident severity level (SEV1–SEV4) at declarationv1
Base: SEV2 if sev>=9 AND news>=2 AND bpo>=1; else SEV3 if sev>=8 AND (news>=1 OR bpo>=1); else SEV4. Acute severe-weather (agents-028): if sev>=9 floor to SEV3 (SEV2→SEV3); minor/transient watches+advisories drop SEV2/SEV3→SEV4. Single-event cap: any SEV2 caps to SEV3 absent sustained multi-day BPO-region corroboration (SEV2 promotion is human-gated via revalidation). score = numeric SEV (1=most severe … 4); SEV3/SEV4 auto-validate, SEV1/SEV2 require human validation.
domain
weather
bpo score
0
news score
1
persistent
no
max severity
10
auto validated
yes
acute weather floor
yes
Geo Provenance
Tierprecise
Sourcesignal_coords
Deterministic
Sources✓ Corroborated · 5 sources

Related Signals8

[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago[Mitchell, IA; Mower, MN] weather 10.0 — Tornado Warningsentinel2d ago[Mitchell, IA; Mower, MN] weather 10.0 — Tornado Warningsentinel2d ago[DepresióN Central De Tarragona] weather 10.0 — Extreme high-temperature warning. Depresión central de Tarragonasentinel2d ago

External Corroboration

✓ Corroborated · 5 sourcesChecked Jul 8, 2026, 10:30 PM UTC
Alerta meteorológica nivel rojo: 20 avisos en 1 provincias | trafico.live↗trafico.liveJul 7, 2026, 12:00 AM UTCTornado Warning Issued for Iowa as Superstorms Move Northeast of Waterloo - News Usa Today↗news-usa.todayJul 2, 2026, 07:47 PM UTCFirst Alert Day: Scattered strong storms possible on Wednesday↗kttc.comJul 8, 2026, 09:42 AM UTCSevere Storms Hit St. Cloud Area Saturday Afternoon↗wjon.comJul 4, 2026, 11:23 PM UTCSTORM ALERT WEATHER 3 FORECAST: Midweek severe threat, flooding concerns | Forecast | kimt.com↗kimt.comJul 8, 2026, 09:00 AM UTC

Affected Regions

DepresióN Central De TarragonaMitchell, IA; Mower, MN