Flash Flood Warning Issued for Saint John, Virgin Islands

Source: NOAA · Saint John, Virgin Islands

If you are in immediate danger, call emergency services now.

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Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

A Flash Flood Warning is in effect for Saint John in the Virgin Islands until 1:30 PM AST on April 13, 2026, due to heavy rain and ongoing flash flooding.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on April 13, 2026 and geographically references Saint John, Virgin Islands. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Flash Flood Warning, Saint John) map to related alerts in the same area of risk - browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Flash Flood Warning in Saint John, VI

Alert Details

A Flash Flood Warning has been issued by NWS San Juan PR. It is effective from 10:45 AM AST on April 13, 2026.

Affected Areas

The warning affects Saint John in the Virgin Islands.

What You Should Do

Turn around, don't drown when encountering flooded roads. Report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

Expected Conditions

Thunderstorms are producing heavy rain. Between 1 and 2 inches of rain have fallen, with additional rainfall amounts of 1 to 3 inches possible. Flash flooding is ongoing or expected to begin shortly, posing a life-threatening hazard.

Timeline

The alert is effective from 10:45 AM AST on April 13, 2026, and expires at 1:30 PM AST on the same day.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
A Flash Flood Warning is in effect for Saint John in the Virgin Islands until 1:30 PM AST on April 13, 2026, due to heavy rain and ongoing flash flooding.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Saint John, Virgin Islands. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.