NOAA NWS / Event history

Freeze Warning issued October 17 at 2:24AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA

Freeze Warning · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose. Severe; likely; urgency: expected.

See what changed ↓Detailed event record ↗

Bulletin issued: 17 October 2026 at 07:24 UTC
First saved by us: 16 October 2026 at 16:02 UTC
Last included in a daily record: 17 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 Des Moines IA · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose
Certainty / urgency: Likely / Expected
Message expiry (not hazard end): 17 October 2026 at 14:00 UTC
Forecast onset / end: 17 October 2026 at 07:24 UTC / 17 October 2026 at 14:00 UTC

Archived official description

* WHAT...Sub-freezing temperatures as low as 29-32 expected and widespread frost. * WHERE...Portions of central, north central, northeast, northwest, south central, southeast, southwest, and west central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Instructions in this archived message

Take steps now to protect tender plants from the cold.

The saved record

What changed

3 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 3 changes

Saved by us

17 October 2026 at 07:32 UTC

Version 4

7 recorded details changed

Title: Before
Freeze Warning issued October 16 at 9:37PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
After
Freeze Warning issued October 17 at 2:24AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
Source updated: Before
17 October 2026 at 02:37 UTC
After
17 October 2026 at 07:24 UTC
Effective from: Before
17 October 2026 at 02:37 UTC
After
17 October 2026 at 07:24 UTC
Forecast onset: Before
17 October 2026 at 06:00 UTC
After
17 October 2026 at 07:24 UTC
Message expiry: Before
17 October 2026 at 12:45 UTC
After
17 October 2026 at 14:00 UTC
Official description: Before
* WHAT...Sub-freezing temperatures as low as 29-32 expected and widespread frost. * ~~WHERE...Much of central Iowa. * WHEN...From 1 AM to 9 AM CDT Saturday.~~ * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected o…
After
* WHAT...Sub-freezing temperatures as low as 29-32 expected and widespread frost. * WHERE...Portions of central, north central, northeast, northwest, south central, southeast, southwest, and west central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected o…
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.692330cf65e45ff4331b3b5379d1483d38d16efa.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.af4cb704c158760d8a7e4da988b7ab98f3a5ede7.001.1

Bulletin issued: 17 October 2026 at 07:24 UTC

View saved version 4

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

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  "id": "nws:36f04305bf320d4a887b324a",
  "authorityId": "urn:oid:2.49.0.1.840.0.af4cb704c158760d8a7e4da988b7ab98f3a5ede7.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.692330cf65e45ff4331b3b5379d1483d38d16efa.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 17 at 2:24AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-17T07:24:00.000Z",
  "issuedAt": "2026-10-17T07:24:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T07:24:00.000Z",
  "onsetAt": "2026-10-17T07:24:00.000Z",
  "expiresAt": "2026-10-17T14:00:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose",
  "coordinates": null,
  "issuer": "NWS Des Moines IA",
  "summary": "Freeze Warning · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 29-32 expected and\nwidespread frost.\n\n* WHERE...Portions of central, north central, northeast, northwest,\nsouth central, southeast, southwest, and west central Iowa.\n\n* WHEN...Until 9 AM CDT this morning.\n\n* IMPACTS...Frost and freeze conditions could kill crops, other\nsensitive vegetation and possibly damage unprotected outdoor\nplumbing.",
  "instruction": "Take steps now to protect tender plants from the cold.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.af4cb704c158760d8a7e4da988b7ab98f3a5ede7.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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

Saved by us

17 October 2026 at 02:47 UTC

Version 3

5 recorded details changed

Title: Before
Freeze Warning issued October 16 at 2:53PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
After
Freeze Warning issued October 16 at 9:37PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
Source updated: Before
16 October 2026 at 19:53 UTC
After
17 October 2026 at 02:37 UTC
Effective from: Before
16 October 2026 at 19:53 UTC
After
17 October 2026 at 02:37 UTC
Message expiry: Before
17 October 2026 at 06:00 UTC
After
17 October 2026 at 12:45 UTC
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d92e566b954b78ba5596cbffad3ab589827da2ec.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.692330cf65e45ff4331b3b5379d1483d38d16efa.001.1

Bulletin issued: 17 October 2026 at 02:37 UTC

View saved version 3

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

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  "authorityId": "urn:oid:2.49.0.1.840.0.692330cf65e45ff4331b3b5379d1483d38d16efa.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
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      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 9:37PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-17T02:37:00.000Z",
  "issuedAt": "2026-10-17T02:37:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T02:37:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T12:45:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose",
  "coordinates": null,
  "issuer": "NWS Des Moines IA",
  "summary": "Freeze Warning · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 29-32 expected and\nwidespread frost.\n\n* WHERE...Much of central Iowa.\n\n* WHEN...From 1 AM to 9 AM CDT Saturday.\n\n* IMPACTS...Frost and freeze conditions could kill crops, other\nsensitive vegetation and possibly damage unprotected outdoor\nplumbing.",
  "instruction": "Take steps now to protect tender plants from the cold.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.692330cf65e45ff4331b3b5379d1483d38d16efa.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

16 October 2026 at 20:02 UTC

Version 2

5 recorded details changed

Title: Before
Freeze Warning issued October 16 at 10:47AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
After
Freeze Warning issued October 16 at 2:53PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA
Source updated: Before
16 October 2026 at 15:47 UTC
After
16 October 2026 at 19:53 UTC
Effective from: Before
16 October 2026 at 15:47 UTC
After
16 October 2026 at 19:53 UTC
Message expiry: Before
17 October 2026 at 02:00 UTC
After
17 October 2026 at 06:00 UTC
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a64340d155051f744ca8b7849ed2e18401e6db86.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d92e566b954b78ba5596cbffad3ab589827da2ec.001.1

Bulletin issued: 16 October 2026 at 19:53 UTC

View saved version 2

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

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  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
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      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 2:53PM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T19:53:00.000Z",
  "issuedAt": "2026-10-16T19:53:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T19:53:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T06:00:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose",
  "coordinates": null,
  "issuer": "NWS Des Moines IA",
  "summary": "Freeze Warning · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 29-32 expected and\nwidespread frost.\n\n* WHERE...Much of central Iowa.\n\n* WHEN...From 1 AM to 9 AM CDT Saturday.\n\n* IMPACTS...Frost and freeze conditions could kill crops, other\nsensitive vegetation and possibly damage unprotected outdoor\nplumbing.",
  "instruction": "Take steps now to protect tender plants from the cold.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d92e566b954b78ba5596cbffad3ab589827da2ec.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 · 16 October 2026 at 16:02 UTC

Saved by us

16 October 2026 at 16:02 UTC

Starting point

First saved record

Our first saved version of Freeze Warning issued October 16 at 10:47AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA. We have no earlier saved version to compare.

Bulletin issued: 16 October 2026 at 15:47 UTC

View saved version 1

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

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    },
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      "sender": "w-nws.webmaster@noaa.gov"
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  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 10:47AM CDT until October 17 at 9:00AM CDT by NWS Des Moines IA",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T15:47:00.000Z",
  "issuedAt": "2026-10-16T15:47:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T15:47:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T02:00:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose",
  "coordinates": null,
  "issuer": "NWS Des Moines IA",
  "summary": "Freeze Warning · Emmet; Kossuth; Winnebago; Worth; Palo Alto; Hancock; Cerro Gordo; Pocahontas; Humboldt; Wright; Franklin; Butler; Bremer; Sac; Calhoun; Webster; Hamilton; Hardin; Grundy; Black Hawk; Crawford; Carroll; Greene; Boone; Story; Marshall; Tama; Audubon; Guthrie; Dallas; Polk; Jasper; Poweshiek; Cass; Adair; Madison; Warren; Marion; Mahaska; Adams; Union; Clarke; Lucas; Monroe; Wapello; Taylor; Ringgold; Decatur; Wayne; Appanoose. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 29-32 expected and\nwidespread frost.\n\n* WHERE...Much of central Iowa.\n\n* WHEN...From 1 AM to 9 AM CDT Saturday.\n\n* IMPACTS...Frost and freeze conditions could kill crops, other\nsensitive vegetation and possibly damage unprotected outdoor\nplumbing.",
  "instruction": "Take steps now to protect tender plants from the cold.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a64340d155051f744ca8b7849ed2e18401e6db86.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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