Public Atlas.
Public Atlas / Sources & operationsSources & operations

Know how recent your answer is.

Daily water and preliminary-report jobs, weekly reference checks. A failed refresh leaves the last successful snapshot in place; its age remains visible.

Latest automated refresh

Attempted 2026-09-28T19:41:18.494Z. Each source family runs independently. A failure retains the previous snapshot and its original timestamp.

Source familyResult
Texas lakes & NOAA tidesCompleted
USGS rivers & SPC hailCompleted
California reservoirsCompleted
Eastern reservoirsCompleted
Daily archiveCompleted
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Bull Shoals Lake

Timestamp: 2026-09-29T00:00:00Z

USACE timestamp: 2026-09-29T01:00:00.000Z. Current elevation, not a daily mean.

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Smith Mountain Lake

Timestamp: 2026-09-29T00:00:00Z

AEP timestamp: Sep 28 2026, 9:48 PM EST. Current elevation, not a daily mean.

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Lake Lanier

Timestamp: 2026-09-29T00:00:00Z

USGS timestamp: 2026-09-29T01:15:00+00:00. Current elevation, not a daily mean.

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Table Rock Lake

Timestamp: 2026-09-28T00:00:00Z

USACE timestamp: 2026-09-29T01:00:00.000Z. Current elevation, not a daily mean.

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Shasta Lake

Timestamp: 2026-09-27T00:00:00Z

CDEC daily reservoir elevation. Series date shown; site retrieval does not change its age.

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Lake Oroville

Timestamp: 2026-09-27T00:00:00Z

CDEC daily reservoir elevation. Series date shown; site retrieval does not change its age.

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Folsom Lake

Timestamp: 2026-09-27T00:00:00Z

CDEC daily reservoir elevation. Series date shown; site retrieval does not change its age.

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Lake Travis

Timestamp: 2026-09-28T00:00:00Z

TWDB daily reservoir estimate. Observation date shown; date-only freshness conservatively uses the start of that UTC day.

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Canyon Lake

Timestamp: 2026-09-28T00:00:00Z

TWDB daily reservoir estimate. Observation date shown; date-only freshness conservatively uses the start of that UTC day.

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Lake Corpus Christi

Timestamp: 2026-09-28T00:00:00Z

TWDB daily reservoir estimate. Observation date shown; date-only freshness conservatively uses the start of that UTC day.

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Medina Lake

Timestamp: 2026-09-28T00:00:00Z

TWDB daily reservoir estimate. Observation date shown; date-only freshness conservatively uses the start of that UTC day.

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Susquehanna River at at Marietta

Timestamp: 2026-09-29T01:30:00.000Z

USGS stage observation. A fresh site deployment does not make an old reading current.

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Skagit River at near Mount Vernon

Timestamp: 2026-09-29T01:30:00.000Z

USGS stage observation. A fresh site deployment does not make an old reading current.

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Susquehanna River at at Harrisburg

Timestamp: 2026-09-29T01:00:00.000Z

USGS stage observation. A fresh site deployment does not make an old reading current.

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Wilson River at near Tillamook

Timestamp: 2026-09-29T01:30:00.000Z

USGS stage observation. A fresh site deployment does not make an old reading current.

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Ohio River at at Cincinnati

Timestamp: 2026-09-29T01:00:00.000Z

USGS stage observation. A fresh site deployment does not make an old reading current.

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NOAA tide predictions

Timestamp: 2026-09-29T01:45:15.047Z

Prediction bundle through 2026-10-07. Check each station’s covered dates; these are predictions.

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SPC preliminary hail

Timestamp: 2026-09-29T01:48:27.932Z

Preliminary reports; empty results do not establish absence of hail.

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OPM 2026 tables

Timestamp: 2026-09-29T00:01:49.958218Z

Weekly retrieval target; rates apply to the table year.

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EPA / Census reference

Timestamp: 2026-09-28T18:11:03.992541Z

Weekly retrieval target. Underlying EPA and Census reference vintages are not live measurements.

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NCEI historical hail

Timestamp: 2026-09-28T18:11:03.992541Z

Historical coverage through 2026-06-30; retrieval date does not extend coverage.

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What a green status means

“Within refresh target” compares the stated timestamp with a configured time window. It does not guarantee source accuracy or safe conditions. The badge checks the device clock once a minute. Use the issuing source for time-sensitive decisions.

Audit trail

Snapshots and changes are versioned in the project repository. Ingestion validates required values and dates before publication. GitHub Actions handles daily and weekly schedules; failure notifications go through the repository’s workflow notification settings.