NOAA NWS / Event history
Severe Thunderstorm Warning issued October 13 at 7:01PM CDT until October 13 at 7:15PM CDT by NWS Norman OK
Severe Thunderstorm Warning · Harper, OK. Severe; observed; urgency: immediate.
- Bulletin issued
- 14 October 2026 at 00:01 UTC
- First saved by us
- 13 October 2026 at 23:28 UTC
- Last included in a daily record
- 14 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 Norman OK · Harper, OK
- Certainty / urgency
- Observed / Immediate
- Message expiry (not hazard end)
- 14 October 2026 at 00:15 UTC
- Forecast onset / end
- 14 October 2026 at 00:01 UTC / 14 October 2026 at 00:15 UTC
Archived official description
At 700 PM CDT, a severe thunderstorm was located 6 miles west of Buffalo, moving northeast at 50 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Buffalo.
Instructions in this archived message
For your protection move to an interior room on the lowest floor of a building.
The saved record
What changed
1 update · 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 1 change
Saved by us
Version 2
Source status changed
- Title
- Before
Severe Thunderstorm Warning issued October 13 at 6:26PM CDT until October 13 at 7:15PM CDT by NWS Norman OK
AfterSevere Thunderstorm Warning issued October 13 at 7:01PM CDT until October 13 at 7:15PM CDT by NWS Norman OK
- Source updated
- Before
13 October 2026 at 23:26 UTC
After14 October 2026 at 00:01 UTC
- Effective from
- Before
13 October 2026 at 23:26 UTC
After14 October 2026 at 00:01 UTC
- Forecast onset
- Before
13 October 2026 at 23:26 UTC
After14 October 2026 at 00:01 UTC
- Message type
- Before
Alert
AfterUpdate
- Source status
- Before
Source alert
AfterSource update
- Reported area
- Before
Ellis, OK; Harper, OK
AfterHarper, OK
- Source summary
- Before
Severe Thunderstorm Warning ·
Ellis, OK;Harper, OK. Severe; observed; urgency: immediate.AfterSevere Thunderstorm Warning · Harper, OK. Severe; observed; urgency: immediate.
- Official description
- Before
SVROUN The National Weather Service in Norman has issued a * Severe Thunderstorm Warning for... Northwestern Ellis County in northwestern Oklahoma... Harper County in northwestern Oklahoma... * Until 715 PM CDT. * At 625 PM CDT, a severe thunderstorm was located in northwest Ellis County, about 11 miles southeast of Slapout, moving northeast at 35 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Laverne, Buffalo, May, Selman, and Catesby.AfterAt 700 PM CDT, a severe thunderstorm was located 6 miles west of Buffalo, moving northeast at 50 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Buffalo.
- External source link
- Before
https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.46a12948979de1f917ad8f7674fde95cc5bb99c7.001.1
Afterhttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3ac0ea5cba5b4d72dd458e27ec40a614694fcbed.002.1
Bulletin issued: 14 October 2026 at 00:01 UTC
View saved version 2
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:53612d1078cb7af3dedd7af2", "authorityId": "urn:oid:2.49.0.1.840.0.3ac0ea5cba5b4d72dd458e27ec40a614694fcbed.002.1", "sender": "w-nws.webmaster@noaa.gov", "references": [ { "identifier": "urn:oid:2.49.0.1.840.0.46a12948979de1f917ad8f7674fde95cc5bb99c7.001.1", "sender": "w-nws.webmaster@noaa.gov" } ], "category": "weather", "title": "Severe Thunderstorm Warning issued October 13 at 7:01PM CDT until October 13 at 7:15PM CDT by NWS Norman OK", "eventType": "Severe Thunderstorm Warning", "occurredAt": "2026-10-14T00:01:00.000Z", "issuedAt": "2026-10-14T00:01:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-14T00:01:00.000Z", "onsetAt": "2026-10-14T00:01:00.000Z", "expiresAt": "2026-10-14T00:15:00.000Z", "forecastEndAt": "2026-10-14T00:15:00.000Z", "severity": "Severe", "urgency": "Immediate", "certainty": "Observed", "messageType": "Update", "status": "Source update", "place": "Harper, OK", "coordinates": null, "issuer": "NWS Norman OK", "summary": "Severe Thunderstorm Warning · Harper, OK. Severe; observed; urgency: immediate.", "description": "At 700 PM CDT, a severe thunderstorm was located 6 miles west of\nBuffalo, moving northeast at 50 mph.\n\nHAZARD...60 mph wind gusts and half dollar size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Hail damage to vehicles is expected. Expect wind damage to\nroofs, siding, and trees.\n\nLocations impacted include...\nBuffalo.", "instruction": "For your protection move to an interior room on the lowest floor of a\nbuilding.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3ac0ea5cba5b4d72dd458e27ec40a614694fcbed.002.1", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.
First saved record · 13 October 2026 at 23:28 UTC
Saved by us
Starting point
First saved record
Our first saved version of Severe Thunderstorm Warning issued October 13 at 6:26PM CDT until October 13 at 7:15PM CDT by NWS Norman OK. We have no earlier saved version to compare.
Bulletin issued: 13 October 2026 at 23:26 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:daf99816b720c228a1ae2968", "authorityId": "urn:oid:2.49.0.1.840.0.46a12948979de1f917ad8f7674fde95cc5bb99c7.001.1", "sender": "w-nws.webmaster@noaa.gov", "references": [], "category": "weather", "title": "Severe Thunderstorm Warning issued October 13 at 6:26PM CDT until October 13 at 7:15PM CDT by NWS Norman OK", "eventType": "Severe Thunderstorm Warning", "occurredAt": "2026-10-13T23:26:00.000Z", "issuedAt": "2026-10-13T23:26:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-13T23:26:00.000Z", "onsetAt": "2026-10-13T23:26:00.000Z", "expiresAt": "2026-10-14T00:15:00.000Z", "forecastEndAt": "2026-10-14T00:15:00.000Z", "severity": "Severe", "urgency": "Immediate", "certainty": "Observed", "messageType": "Alert", "status": "Source alert", "place": "Ellis, OK; Harper, OK", "coordinates": null, "issuer": "NWS Norman OK", "summary": "Severe Thunderstorm Warning · Ellis, OK; Harper, OK. Severe; observed; urgency: immediate.", "description": "SVROUN\n\nThe National Weather Service in Norman has issued a\n\n* Severe Thunderstorm Warning for...\nNorthwestern Ellis County in northwestern Oklahoma...\nHarper County in northwestern Oklahoma...\n\n* Until 715 PM CDT.\n\n* At 625 PM CDT, a severe thunderstorm was located in northwest\nEllis County, about 11 miles southeast of Slapout, moving\nnortheast at 35 mph.\n\nHAZARD...Ping pong ball size hail and 60 mph wind gusts.\n\nSOURCE...Radar indicated.\n\nIMPACT...People and animals outdoors will be injured. Expect hail\ndamage to roofs, siding, windows, and vehicles. Expect\nwind damage to roofs, siding, and trees.\n\n* Locations impacted include...\nLaverne, Buffalo, May, Selman, and Catesby.", "instruction": "For your protection move to an interior room on the lowest floor of a\nbuilding.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.46a12948979de1f917ad8f7674fde95cc5bb99c7.001.1", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.