NOAA NWS / Event history

Freeze Warning issued October 15 at 7:54AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO

Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.

See what changed ↓Detailed event record ↗

Bulletin issued: 15 October 2026 at 13:54 UTC
First saved by us: 14 October 2026 at 16:43 UTC
Last included in a daily record: 15 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 update

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 Pueblo CO · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley
Certainty / urgency: Likely / Expected
Message expiry (not hazard end): 15 October 2026 at 15:00 UTC
Forecast onset / end: 15 October 2026 at 13:54 UTC / 15 October 2026 at 14:00 UTC

Archived official description

Temperatures in the 30s across the San Luis Valley early this morning will continue to warm through the day. This will allow the freeze warning to expire at 8 AM MDT.

The saved record

What changed

4 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.

Showing the latest 3 changes

Saved by us
15 October 2026 at 13:58 UTC
Version 5
8 recorded details changed
Title
Before
Freeze Warning issued October 15 at 2:02AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
After
Freeze Warning issued October 15 at 7:54AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
Source updated
Before
15 October 2026 at 08:02 UTC
After
15 October 2026 at 13:54 UTC
Effective from
Before
15 October 2026 at 08:02 UTC
After
15 October 2026 at 13:54 UTC
Forecast onset
Before
15 October 2026 at 08:02 UTC
After
15 October 2026 at 13:54 UTC
Message expiry
Before
15 October 2026 at 14:00 UTC
After
15 October 2026 at 15:00 UTC
Official description
Before
* WHAT...Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...Until 8 AM MDT this morning. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This could be a killing freeze which could bring an end to the growing season across the San Luis Valley. Friday night is expected to be a few degrees colder.
After
Temperatures in the 30s across the San Luis Valley early this morning will continue to warm through the day. This will allow the freeze warning to expire at 8 AM MDT.
Official instructions
Before
~~Take steps now to protect tender plants from the cold. To prevent water pipes from freezing; wrap or drain or allow them to drip slowly.~~
After
Not supplied
External source link
Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.68446a8e37eada8fd0e3c3bf6369f925817a6b4b.002.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.cf45901a89a0c83eda47f86c74f72eab42acd98b.001.1
Bulletin issued: 15 October 2026 at 13:54 UTC
View saved version 5
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:402362b4a982989d3a6e5d16", "authorityId": "urn:oid:2.49.0.1.840.0.cf45901a89a0c83eda47f86c74f72eab42acd98b.001.1", "sender": "w-nws.webmaster@noaa.gov", "references": [ { "identifier": "urn:oid:2.49.0.1.840.0.68446a8e37eada8fd0e3c3bf6369f925817a6b4b.002.1", "sender": "w-nws.webmaster@noaa.gov" } ], "category": "weather", "title": "Freeze Warning issued October 15 at 7:54AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO", "eventType": "Freeze Warning", "occurredAt": "2026-10-15T13:54:00.000Z", "issuedAt": "2026-10-15T13:54:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-15T13:54:00.000Z", "onsetAt": "2026-10-15T13:54:00.000Z", "expiresAt": "2026-10-15T15:00:00.000Z", "forecastEndAt": "2026-10-15T14:00:00.000Z", "severity": "Severe", "urgency": "Expected", "certainty": "Likely", "messageType": "Update", "status": "Source update", "place": "Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley", "coordinates": null, "issuer": "NWS Pueblo CO", "summary": "Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.", "description": "Temperatures in the 30s across the San Luis Valley early this morning\nwill continue to warm through the day. This will allow the freeze\nwarning to expire at 8 AM MDT.", "instruction": "", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.cf45901a89a0c83eda47f86c74f72eab42acd98b.001.1", "source": "nws", "sourceName": "NOAA NWS" }
Visit the external source ↗
The external page may have changed since this version was saved.

Saved by us

15 October 2026 at 08:13 UTC

Version 4

7 recorded details changed

Title: Before
Freeze Warning issued October 14 at 10:31PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
After
Freeze Warning issued October 15 at 2:02AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
Source updated: Before
15 October 2026 at 04:31 UTC
After
15 October 2026 at 08:02 UTC
Effective from: Before
15 October 2026 at 04:31 UTC
After
15 October 2026 at 08:02 UTC
Forecast onset: Before
15 October 2026 at 06:00 UTC
After
15 October 2026 at 08:02 UTC
Message expiry: Before
15 October 2026 at 12:45 UTC
After
15 October 2026 at 14:00 UTC
Official description: Before
…Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...Until 8 AM MDT ~~Thursday.~~ * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor…
After
…Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...Until 8 AM MDT this morning. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor…
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.94f47aa060989cf80d95af156e3e0d4701ca8d5a.002.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.68446a8e37eada8fd0e3c3bf6369f925817a6b4b.002.1

Bulletin issued: 15 October 2026 at 08:02 UTC

View saved version 4

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

{
  "id": "nws:a536130873b9a3ee8d832efb",
  "authorityId": "urn:oid:2.49.0.1.840.0.68446a8e37eada8fd0e3c3bf6369f925817a6b4b.002.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.94f47aa060989cf80d95af156e3e0d4701ca8d5a.002.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 15 at 2:02AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-15T08:02:00.000Z",
  "issuedAt": "2026-10-15T08:02:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-15T08:02:00.000Z",
  "onsetAt": "2026-10-15T08:02:00.000Z",
  "expiresAt": "2026-10-15T14:00:00.000Z",
  "forecastEndAt": "2026-10-15T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley",
  "coordinates": null,
  "issuer": "NWS Pueblo CO",
  "summary": "Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.",
  "description": "* WHAT...Thursday morning low temperatures in the mid 20s to lower\n30s.\n\n* WHERE...The San Luis Valley.\n\n* WHEN...Until 8 AM MDT this morning.\n\n* IMPACTS...Freezing temperatures could kill crops, other sensitive\nvegetation and possibly damage unprotected outdoor plumbing.\n\n* ADDITIONAL DETAILS...This could be a killing freeze which could\nbring an end to the growing season across the San Luis Valley.\nFriday night is expected to be a few degrees colder.",
  "instruction": "Take steps now to protect tender plants from the cold.\n\nTo prevent water pipes from freezing; wrap or drain or allow them to\ndrip slowly.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.68446a8e37eada8fd0e3c3bf6369f925817a6b4b.002.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.

Saved by us

15 October 2026 at 04:43 UTC

Version 3

6 recorded details changed

Title: Before
Freeze Warning issued October 14 at 2:48PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
After
Freeze Warning issued October 14 at 10:31PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
Source updated: Before
14 October 2026 at 20:48 UTC
After
15 October 2026 at 04:31 UTC
Effective from: Before
14 October 2026 at 20:48 UTC
After
15 October 2026 at 04:31 UTC
Message expiry: Before
15 October 2026 at 05:00 UTC
After
15 October 2026 at 12:45 UTC
Official description: Before
* WHAT...Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...From midnight tonight to 8 AM MDT Thursday. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This could be a killing freeze which could bring an end to the growing season across the San Luis Valley.
After
* WHAT...Thursday morning low temperatures in the mid 20s to lower 30s. * WHERE...The San Luis Valley. * WHEN...Until 8 AM MDT Thursday. * IMPACTS...Freezing temperatures could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This could be a killing freeze which could bring an end to the growing season across the San Luis Valley. Friday night is expected to be a few degrees colder.
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8811a5c41bc4131c7b7c51b839e300755ddc3510.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.94f47aa060989cf80d95af156e3e0d4701ca8d5a.002.1

Bulletin issued: 15 October 2026 at 04:31 UTC

View saved version 3

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

{
  "id": "nws:0a805b055e9b669d665b1a39",
  "authorityId": "urn:oid:2.49.0.1.840.0.94f47aa060989cf80d95af156e3e0d4701ca8d5a.002.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.8811a5c41bc4131c7b7c51b839e300755ddc3510.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 14 at 10:31PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-15T04:31:00.000Z",
  "issuedAt": "2026-10-15T04:31:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-15T04:31:00.000Z",
  "onsetAt": "2026-10-15T06:00:00.000Z",
  "expiresAt": "2026-10-15T12:45:00.000Z",
  "forecastEndAt": "2026-10-15T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley",
  "coordinates": null,
  "issuer": "NWS Pueblo CO",
  "summary": "Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.",
  "description": "* WHAT...Thursday morning low temperatures in the mid 20s to lower\n30s.\n\n* WHERE...The San Luis Valley.\n\n* WHEN...Until 8 AM MDT Thursday.\n\n* IMPACTS...Freezing temperatures could kill crops, other sensitive\nvegetation and possibly damage unprotected outdoor plumbing.\n\n* ADDITIONAL DETAILS...This could be a killing freeze which could\nbring an end to the growing season across the San Luis Valley.\nFriday night is expected to be a few degrees colder.",
  "instruction": "Take steps now to protect tender plants from the cold.\n\nTo prevent water pipes from freezing; wrap or drain or allow them to\ndrip slowly.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.94f47aa060989cf80d95af156e3e0d4701ca8d5a.002.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.

Show 1 earlier update

Saved by us

14 October 2026 at 20:58 UTC

Version 2

Source status changed

Title: Before
Freeze Warning issued October 14 at 10:39AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
After
Freeze Warning issued October 14 at 2:48PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO
Source updated: Before
14 October 2026 at 16:39 UTC
After
14 October 2026 at 20:48 UTC
Effective from: Before
14 October 2026 at 16:39 UTC
After
14 October 2026 at 20:48 UTC
Message expiry: Before
15 October 2026 at 00:45 UTC
After
15 October 2026 at 05:00 UTC
Message type: Before
Alert
After
Update
Source status: Before
Source alert
After
Source update
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.751a03eecc0f01df8057b9be5f9d019e0a0efb2a.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8811a5c41bc4131c7b7c51b839e300755ddc3510.001.1

Bulletin issued: 14 October 2026 at 20:48 UTC

View saved version 2

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

{
  "id": "nws:fd90a4d93815cae4df3e128a",
  "authorityId": "urn:oid:2.49.0.1.840.0.8811a5c41bc4131c7b7c51b839e300755ddc3510.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.751a03eecc0f01df8057b9be5f9d019e0a0efb2a.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 14 at 2:48PM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-14T20:48:00.000Z",
  "issuedAt": "2026-10-14T20:48:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-14T20:48:00.000Z",
  "onsetAt": "2026-10-15T06:00:00.000Z",
  "expiresAt": "2026-10-15T05:00:00.000Z",
  "forecastEndAt": "2026-10-15T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley",
  "coordinates": null,
  "issuer": "NWS Pueblo CO",
  "summary": "Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.",
  "description": "* WHAT...Thursday morning low temperatures in the mid 20s to lower\n30s.\n\n* WHERE...The San Luis Valley.\n\n* WHEN...From midnight tonight to 8 AM MDT Thursday.\n\n* IMPACTS...Freezing temperatures could kill crops, other sensitive\nvegetation and possibly damage unprotected outdoor plumbing.\n\n* ADDITIONAL DETAILS...This could be a killing freeze which could\nbring an end to the growing season across the San Luis Valley.",
  "instruction": "Take steps now to protect tender plants from the cold.\n\nTo prevent water pipes from freezing; wrap or drain or allow them to\ndrip slowly.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8811a5c41bc4131c7b7c51b839e300755ddc3510.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.

First saved record · 14 October 2026 at 16:43 UTC

Saved by us

14 October 2026 at 16:43 UTC

Starting point

First saved record

Our first saved version of Freeze Warning issued October 14 at 10:39AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO. We have no earlier saved version to compare.

Bulletin issued: 14 October 2026 at 16:39 UTC

View saved version 1

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

{
  "id": "nws:9a8cb91ee7585521d6f5651f",
  "authorityId": "urn:oid:2.49.0.1.840.0.751a03eecc0f01df8057b9be5f9d019e0a0efb2a.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Freeze Warning issued October 14 at 10:39AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-14T16:39:00.000Z",
  "issuedAt": "2026-10-14T16:39:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-14T16:39:00.000Z",
  "onsetAt": "2026-10-15T06:00:00.000Z",
  "expiresAt": "2026-10-15T00:45:00.000Z",
  "forecastEndAt": "2026-10-15T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley",
  "coordinates": null,
  "issuer": "NWS Pueblo CO",
  "summary": "Freeze Warning · Del Norte Vicinity/Northern San Luis Valley Below 8500 Ft; Alamosa  Vicinity/Central San Luis Valley Below 8500 Ft; Southern San Luis Valley. Severe; likely; urgency: expected.",
  "description": "* WHAT...Thursday morning low temperatures in the mid 20s to lower\n30s.\n\n* WHERE...The San Luis Valley.\n\n* WHEN...From midnight tonight to 8 AM MDT Thursday.\n\n* IMPACTS...Freezing temperatures could kill crops, other sensitive\nvegetation and possibly damage unprotected outdoor plumbing.\n\n* ADDITIONAL DETAILS...This could be a killing freeze which could\nbring an end to the growing season across the San Luis Valley.",
  "instruction": "Take steps now to protect tender plants from the cold.\n\nTo prevent water pipes from freezing; wrap or drain or allow them to\ndrip slowly.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.751a03eecc0f01df8057b9be5f9d019e0a0efb2a.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

The external page may have changed since this version was saved.

Freeze Warning issued October 15 at 7:54AM MDT until October 15 at 8:00AM MDT by NWS Pueblo CO

Archived official description

What changed

8 recorded details changed

7 recorded details changed

6 recorded details changed

Source status changed

First saved record