NOAA NWS / Event history
Flood Watch issued October 20 at 11:29AM MDT until October 23 at 12:00AM MDT by NWS Salt Lake City UT
Flood Watch · Castle Country; San Rafael Swell. Severe; possible; urgency: future.
- Bulletin issued
- 20 October 2026 at 17:29 UTC
- First saved by us
- 20 October 2026 at 17:40 UTC
- Last included in a daily record
- 20 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 Salt Lake City UT · Castle Country; San Rafael Swell
- Certainty / urgency
- Possible / Future
- Message expiry (not hazard end)
- 21 October 2026 at 06:00 UTC
- Forecast onset / end
- 21 October 2026 at 18:00 UTC / 23 October 2026 at 06:00 UTC
Archived official description
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of Utah, including the following areas, Castle Country and San Rafael Swell. * WHEN...From Wednesday afternoon through Thursday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, dry washes, slot canyons, and other low-lying and flood-prone locations such as slickrock areas and recent burn scars. * ADDITIONAL DETAILS... - A late season surge of tropical moisture will bring widespread moderate to at times heavy rainfall across much of eastern Utah beginning Wednesday afternoon, and continuing through Thursday. Local rainfall totals in excess of 2 inches are expected through Thursday evening. - All normally dry washes, small streams and mainstem rivers will see elevated flows from this excessive rainfall, with periods of heavier rainfall resulting in flash flooding. Backcountry roads may become impassable due to flooding. - http://www.weather.gov/safety/flood
Instructions in this archived message
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. People in the backcountry should ensure they have alternative routes available in case their primary route becomes impassable.
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 · 20 October 2026 at 17:40 UTC
Saved by us
Starting point
First saved record
Our first saved version of Flood Watch issued October 20 at 11:29AM MDT until October 23 at 12:00AM MDT by NWS Salt Lake City UT. We have no earlier saved version to compare.
Bulletin issued: 20 October 2026 at 17:29 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:dbf6d31796c6b85209d33523", "authorityId": "urn:oid:2.49.0.1.840.0.b9ceefaf3efe717e54dcd6d8fa6fa5c5c0319cea.002.1", "sender": "w-nws.webmaster@noaa.gov", "references": [], "category": "weather", "title": "Flood Watch issued October 20 at 11:29AM MDT until October 23 at 12:00AM MDT by NWS Salt Lake City UT", "eventType": "Flood Watch", "occurredAt": "2026-10-20T17:29:00.000Z", "issuedAt": "2026-10-20T17:29:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-20T17:29:00.000Z", "onsetAt": "2026-10-21T18:00:00.000Z", "expiresAt": "2026-10-21T06:00:00.000Z", "forecastEndAt": "2026-10-23T06:00:00.000Z", "severity": "Severe", "urgency": "Future", "certainty": "Possible", "messageType": "Alert", "status": "Source alert", "place": "Castle Country; San Rafael Swell", "coordinates": null, "issuer": "NWS Salt Lake City UT", "summary": "Flood Watch · Castle Country; San Rafael Swell. Severe; possible; urgency: future.", "description": "* WHAT...Flash flooding caused by excessive rainfall is possible.\n\n* WHERE...A portion of Utah, including the following areas, Castle\nCountry and San Rafael Swell.\n\n* WHEN...From Wednesday afternoon through Thursday evening.\n\n* IMPACTS...Excessive runoff may result in flooding of rivers,\ncreeks, streams, dry washes, slot canyons, and other low-lying and\nflood-prone locations such as slickrock areas and recent burn\nscars.\n\n* ADDITIONAL DETAILS...\n- A late season surge of tropical moisture will bring widespread\nmoderate to at times heavy rainfall across much of eastern Utah\nbeginning Wednesday afternoon, and continuing through Thursday.\nLocal rainfall totals in excess of 2 inches are expected through\nThursday evening.\n- All normally dry washes, small streams and mainstem rivers will\nsee elevated flows from this excessive rainfall, with periods of\nheavier rainfall resulting in flash flooding. Backcountry roads\nmay become impassable due to flooding.\n- http://www.weather.gov/safety/flood", "instruction": "You should monitor later forecasts and be prepared to take action\nshould Flash Flood Warnings be issued.\n\nPeople in the backcountry should ensure they have alternative routes\navailable in case their primary route becomes impassable.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b9ceefaf3efe717e54dcd6d8fa6fa5c5c0319cea.002.1", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.