NOAA NWS / Event history

Flash Flood Warning issued October 19 at 1:28PM AST until October 19 at 4:15PM AST by NWS San Juan PR

Flash Flood Warning · Carolina, PR; Guaynabo, PR; San Juan, PR; Trujillo Alto, PR. Severe; likely; urgency: immediate.

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Bulletin issued: 19 October 2026 at 17:28 UTC
First saved by us: 19 October 2026 at 17:32 UTC
Last included in a daily record: 19 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
Source classification: Severe · Source alert

A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.

Issuer / area: NWS San Juan PR · Carolina, PR; Guaynabo, PR; San Juan, PR; Trujillo Alto, PR
Certainty / urgency: Likely / Immediate
Message expiry (not hazard end): 19 October 2026 at 20:15 UTC
Forecast onset / end: 19 October 2026 at 17:28 UTC / 19 October 2026 at 20:15 UTC

Archived official description

FFWSJU The National Weather Service in San Juan has issued a * Flash Flood Warning for... Northern Carolina in Puerto Rico... Northern Guaynabo in Puerto Rico... San Juan in Puerto Rico... Trujillo Alto in Puerto Rico... * Until 415 PM AST. * At 128 PM AST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Instructions in this archived message

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please 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.

The saved record

What changed

0 updates · 1 first record

Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.

First saved record · 19 October 2026 at 17:32 UTC

Saved by us

19 October 2026 at 17:32 UTC

Starting point

First saved record

Our first saved version of Flash Flood Warning issued October 19 at 1:28PM AST until October 19 at 4:15PM AST by NWS San Juan PR. We have no earlier saved version to compare.

Bulletin issued: 19 October 2026 at 17:28 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:a7453954a2ad5c96c8e132a6",
  "authorityId": "urn:oid:2.49.0.1.840.0.12896c7841cc2a25b996930748abf73f55a0d25d.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Flash Flood Warning issued October 19 at 1:28PM AST until October 19 at 4:15PM AST by NWS San Juan PR",
  "eventType": "Flash Flood Warning",
  "occurredAt": "2026-10-19T17:28:00.000Z",
  "issuedAt": "2026-10-19T17:28:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-19T17:28:00.000Z",
  "onsetAt": "2026-10-19T17:28:00.000Z",
  "expiresAt": "2026-10-19T20:15:00.000Z",
  "forecastEndAt": "2026-10-19T20:15:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Carolina, PR; Guaynabo, PR; San Juan, PR; Trujillo Alto, PR",
  "coordinates": null,
  "issuer": "NWS San Juan PR",
  "summary": "Flash Flood Warning · Carolina, PR; Guaynabo, PR; San Juan, PR; Trujillo Alto, PR. Severe; likely; urgency: immediate.",
  "description": "FFWSJU\n\nThe National Weather Service in San Juan has issued a\n\n* Flash Flood Warning for...\nNorthern Carolina in Puerto Rico...\nNorthern Guaynabo in Puerto Rico...\nSan Juan in Puerto Rico...\nTrujillo Alto in Puerto Rico...\n\n* Until 415 PM AST.\n\n* At 128 PM AST, Doppler radar indicated thunderstorms producing\nheavy rain across the warned area. Between 1 and 2 inches of rain\nhave fallen. Additional rainfall amounts of 1 to 2 inches are\npossible in the warned area. Flash flooding is ongoing or expected\nto begin shortly.\n\nHAZARD...Flash flooding caused by thunderstorms.\n\nSOURCE...Radar indicated.\n\nIMPACT...Flash flooding of small creeks and streams, urban areas,\nhighways, streets and underpasses as well as other poor\ndrainage and low-lying areas.",
  "instruction": "Turn around, don't drown when encountering flooded roads. Most flood\ndeaths occur in vehicles.\n\nBe aware of your surroundings and do not drive on flooded roads.\n\nPlease report observed flooding to local emergency services or law\nenforcement and request they pass this information to the National\nWeather Service when you can do so safely.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.12896c7841cc2a25b996930748abf73f55a0d25d.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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