NOAA NWS / Event history

Freeze Warning issued October 17 at 2:10AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI

Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.

See what changed ↓Detailed event record ↗

Bulletin issued: 17 October 2026 at 07:10 UTC
First saved by us: 16 October 2026 at 05:32 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 Milwaukee/Sullivan WI · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth
Certainty / urgency: Likely / Expected
Message expiry (not hazard end): 17 October 2026 at 14:00 UTC
Forecast onset / end: 17 October 2026 at 07:10 UTC / 17 October 2026 at 14:00 UTC

Archived official description

* WHAT...Sub-freezing temperatures as low as 28. * WHERE...Portions of east central, south central, and southeast Wisconsin. * 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

6 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

17 October 2026 at 07:17 UTC

Version 7

7 recorded details changed

Title: Before
Freeze Warning issued October 16 at 11:25PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 17 at 2:10AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
17 October 2026 at 04:25 UTC
After
17 October 2026 at 07:10 UTC
Effective from: Before
17 October 2026 at 04:25 UTC
After
17 October 2026 at 07:10 UTC
Forecast onset: Before
17 October 2026 at 06:00 UTC
After
17 October 2026 at 07:10 UTC
Message expiry: Before
17 October 2026 at 12:30 UTC
After
17 October 2026 at 14:00 UTC
Official description: Before
* WHAT...Sub-freezing temperatures as low as ~~28 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 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 28. * WHERE...Portions of east central, south central, and southeast Wisconsin. * 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:2.49.0.1.840.0.95c38695178e220db38d53090f564b293044f73e.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.60cf2d89381dc984bd170f67078910911c23a377.001.1

Bulletin issued: 17 October 2026 at 07:10 UTC

View saved version 7

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

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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 17 at 2:10AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-17T07:10:00.000Z",
  "issuedAt": "2026-10-17T07:10:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T07:10:00.000Z",
  "onsetAt": "2026-10-17T07:10:00.000Z",
  "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": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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:2.49.0.1.840.0.60cf2d89381dc984bd170f67078910911c23a377.001.1",
  "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 04:32 UTC

Version 6

6 recorded details changed

Title: Before
Freeze Warning issued October 16 at 6:56PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 16 at 11:25PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
16 October 2026 at 23:56 UTC
After
17 October 2026 at 04:25 UTC
Effective from: Before
16 October 2026 at 23:56 UTC
After
17 October 2026 at 04:25 UTC
Message expiry: Before
17 October 2026 at 08:00 UTC
After
17 October 2026 at 12:30 UTC
Official description: Before
…ing temperatures as low as 28 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * ~~WHEN...From 1 AM to~~ 9 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly d…
After
…ing temperatures as low as 28 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...Until 9 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly d…
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b7656b29a231ad287b854db6d728ec51321f5ebd.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.95c38695178e220db38d53090f564b293044f73e.001.1

Bulletin issued: 17 October 2026 at 04:25 UTC

View saved version 6

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

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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 11:25PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-17T04:25:00.000Z",
  "issuedAt": "2026-10-17T04:25:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-17T04:25:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T12:30:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\n\n* WHEN...Until 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:2.49.0.1.840.0.95c38695178e220db38d53090f564b293044f73e.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 00:02 UTC

Version 5

6 recorded details changed

Title: Before
Freeze Warning issued October 16 at 3:19PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 16 at 6:56PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
16 October 2026 at 20:19 UTC
After
16 October 2026 at 23:56 UTC
Effective from: Before
16 October 2026 at 20:19 UTC
After
16 October 2026 at 23:56 UTC
Message expiry: Before
17 October 2026 at 04:30 UTC
After
17 October 2026 at 08:00 UTC
Official description: Before
* WHAT...Sub-freezing temperatures as low as 28 ~~degrees~~ expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 1 AM to 9 AM CDT S…
After
* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 1 AM to 9 AM CDT S…
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.78e982d79aedf413aef605bda19c66fc7c131013.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b7656b29a231ad287b854db6d728ec51321f5ebd.001.1

Bulletin issued: 16 October 2026 at 23:56 UTC

View saved version 5

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

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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 6:56PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T23:56:00.000Z",
  "issuedAt": "2026-10-16T23:56:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T23:56:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T08:00:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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.b7656b29a231ad287b854db6d728ec51321f5ebd.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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

Show 3 earlier updates

Saved by us

16 October 2026 at 20:32 UTC

Version 4

5 recorded details changed

Title: Before
Freeze Warning issued October 16 at 12:13PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 16 at 3:19PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
16 October 2026 at 17:13 UTC
After
16 October 2026 at 20:19 UTC
Effective from: Before
16 October 2026 at 17:13 UTC
After
16 October 2026 at 20:19 UTC
Message expiry: Before
17 October 2026 at 01:15 UTC
After
17 October 2026 at 04:30 UTC
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a08e4e44a8cc57ad4706a99a6cf2bf3cfbc5030b.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.78e982d79aedf413aef605bda19c66fc7c131013.001.1

Bulletin issued: 16 October 2026 at 20:19 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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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 3:19PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T20:19:00.000Z",
  "issuedAt": "2026-10-16T20:19:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T20:19:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T04:30:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 degrees expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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:2.49.0.1.840.0.78e982d79aedf413aef605bda19c66fc7c131013.001.1",
  "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 17:17 UTC

Version 3

6 recorded details changed

Title: Before
Freeze Warning issued October 16 at 6:00AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 16 at 12:13PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
16 October 2026 at 11:00 UTC
After
16 October 2026 at 17:13 UTC
Effective from: Before
16 October 2026 at 11:00 UTC
After
16 October 2026 at 17:13 UTC
Message expiry: Before
16 October 2026 at 19:00 UTC
After
17 October 2026 at 01:15 UTC
Official description: Before
* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 1 AM to 9 AM CDT S…
After
* WHAT...Sub-freezing temperatures as low as 28 degrees expected. * WHERE...Portions of east central, south central, and southeast Wisconsin. * WHEN...From 1 AM to 9 AM CDT S…
External source link: Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.03bfeea56389cee2b3be0828e894163ea91bb20d.001.1
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a08e4e44a8cc57ad4706a99a6cf2bf3cfbc5030b.001.1

Bulletin issued: 16 October 2026 at 17:13 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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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 12:13PM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T17:13:00.000Z",
  "issuedAt": "2026-10-16T17:13:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T17:13:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-17T01:15:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 degrees expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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.a08e4e44a8cc57ad4706a99a6cf2bf3cfbc5030b.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 11:02 UTC

Version 2

Source status changed

Title: Before
Freeze Warning issued October 16 at 12:29AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
After
Freeze Warning issued October 16 at 6:00AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI
Source updated: Before
16 October 2026 at 05:29 UTC
After
16 October 2026 at 11:00 UTC
Effective from: Before
16 October 2026 at 05:29 UTC
After
16 October 2026 at 11:00 UTC
Message expiry: Before
16 October 2026 at 13:30 UTC
After
16 October 2026 at 19:00 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:2.49.0.1.840.0.1d3c3224a201b1f004a8d1f489eea913673eb56c.001.2
After
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.03bfeea56389cee2b3be0828e894163ea91bb20d.001.1

Bulletin issued: 16 October 2026 at 11:00 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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    }
  ],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 6:00AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T11:00:00.000Z",
  "issuedAt": "2026-10-16T11:00:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T11:00:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-16T19:00:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Update",
  "status": "Source update",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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:2.49.0.1.840.0.03bfeea56389cee2b3be0828e894163ea91bb20d.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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

First saved record · 16 October 2026 at 05:32 UTC

Saved by us

16 October 2026 at 05:32 UTC

Starting point

First saved record

Our first saved version of Freeze Warning issued October 16 at 12:29AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI. We have no earlier saved version to compare.

Bulletin issued: 16 October 2026 at 05:29 UTC

View saved version 1

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

{
  "id": "nws:816c8d0e3881debfe791e8a0",
  "authorityId": "urn:oid:2.49.0.1.840.0.1d3c3224a201b1f004a8d1f489eea913673eb56c.001.2",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Freeze Warning issued October 16 at 12:29AM CDT until October 17 at 9:00AM CDT by NWS Milwaukee/Sullivan WI",
  "eventType": "Freeze Warning",
  "occurredAt": "2026-10-16T05:29:00.000Z",
  "issuedAt": "2026-10-16T05:29:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-16T05:29:00.000Z",
  "onsetAt": "2026-10-17T06:00:00.000Z",
  "expiresAt": "2026-10-16T13:30:00.000Z",
  "forecastEndAt": "2026-10-17T14:00:00.000Z",
  "severity": "Severe",
  "urgency": "Expected",
  "certainty": "Likely",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth",
  "coordinates": null,
  "issuer": "NWS Milwaukee/Sullivan WI",
  "summary": "Freeze Warning · Marquette; Green Lake; Fond Du Lac; Sheboygan; Sauk; Columbia; Dodge; Washington; Iowa; Dane; Jefferson; Waukesha; Lafayette; Green; Rock; Walworth. Severe; likely; urgency: expected.",
  "description": "* WHAT...Sub-freezing temperatures as low as 28 expected.\n\n* WHERE...Portions of east central, south central, and southeast\nWisconsin.\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:2.49.0.1.840.0.1d3c3224a201b1f004a8d1f489eea913673eb56c.001.2",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

Visit the external source ↗

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