NOAA Storm Prediction Center

spc.noaa.gov ↗

US severe-convective weather outlooks

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SI Score: 40/100
Pricing: Not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

united-states weather

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Answers use saved listing facts and recorded sources.

What it does

SPC publishes US convective outlooks, watches and related severe-weather information.

A multi-day convective outlook and an active watch cover different periods and areas. Read the product explanation and issue time rather than transfer a categorical area label to every point inside it.

Best for

Distinguishing US convective outlooks from active watches

Sources

NOAA/NWS Storm Prediction Center (Oct 26, 2026)
Storm Prediction Center Forecast Products (Oct 26, 2026)

SI Score

40/100

#58 in Weather

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 26, 2026Score ceiling for this evidence: 84/100.

Product usefulness 40

Evidence

Outlook, watch and report separation supports basic severe-weather discovery. The retained sources do not establish the full probability/validity interpretation workflow.

Limits: AI review of saved source passages. No hands-on test, human approval or automatic-provider checker receipt.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checksunknown

No check recorded.

HTML accessibility checksunknown

No check recorded.

Homepage HTML responseunknown

No check recorded.

Trackers in homepage HTMLunknown

No check recorded.

Page date hintsunknown

No check recorded.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

www.spc.noaa.gov/
- Product usefulness evidenceChecked Oct 26, 2026
www.spc.noaa.gov/products/
- Product usefulness evidenceChecked Oct 26, 2026

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