Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 873, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Sep 12, 2019, 7:03 PM CDT for Lincoln County, Logan County, Payne County, Oklahoma. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 12, 2019, 7:03 PM CDT (00:03 UTC)
- Expired
- Sep 12, 2019, 7:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lincoln County, OK, Logan County, OK, Payne County, OK
The radar
The Norman radar (KTLX), 65 km from the middle of the area, began a volume at 00:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 12, 2:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.1 hours before the alert went out and 316 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 876 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 12, 6:20 PM CDT, 43 minutes earlier.
Area forecast discussion, Sep 12, 6:20 PM CDT, 43 minutes before
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</html>Hazardous weather outlook, Sep 12, 11:29 AM CDT, 7 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 1129 AM CDT Thu Sep 12 2019 OKZ004>048-050>052-TXZ083>090-131630- Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain- Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson- Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton- Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman- Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay- 1129 AM CDT Thu Sep 12 2019 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through Tonight... .Thunderstorms and Heavy Rainfall... There is a risk of severe storms this afternoon and evening across much of western, central, and north central Oklahoma. The main threats will be damaging wind gusts up to 65 mph and heavy rainfall. The most likely time for severe storms will be from 3 pm to 10 pm. Additional showers and thunderstorms may linger across southern Oklahoma and northern Texas overnight with a continued risk for heavy rainfall and flooding, though the severe risk should be diminished by this time. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel should ready for severe weather operations through this evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... .Thunderstorms... Showers and thunderstorms may linger into the morning hours on Friday. Organized severe weather is not expected. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook. Mahale
In the hours before
Special weather statement, Sep 12, 5:39 PM CDT, 1 hour 24 minutes before
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</html>Local storm report, Sep 12, 5:41 PM CDT, 1 hour 22 minutes before
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</html>Special weather statement, Sep 12, 6:20 PM CDT, 43 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 7:00 PM CDT | Special Weather Statement | OUN | Beckham | 45 min |
| Sep 12, 7:06 PM CDT | Areal Flood Advisory | OUN | Garfield, Lincoln, Logan, Noble, Payne | 3 hr |
| Sep 12, 7:11 PM CDT | Areal Flood Warning | OUN | Garfield, Grant, Kay, Noble | 3 hr |
| Sep 12, 7:28 PM CDT | Special Weather Statement | OUN | Logan | 47 min |
| Sep 12, 7:46 PM CDT | Special Weather Statement | OUN | Lincoln | 59 min |
| Sep 12, 7:50 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Logan, Payne | 55 min |
| Sep 12, 8:17 PM CDT | Special Weather Statement | OUN | Oklahoma | 58 min |
| Sep 12, 8:48 PM CDT | Areal Flood Advisory | OUN | Custer | 3 hr |
| Sep 12, 8:57 PM CDT | Areal Flood Warning | OUN | Kay | 3 hr |
| Sep 12, 9:01 PM CDT | Special Weather Statement | OUN | Greer | 59 min |
| Sep 12, 9:08 PM CDT | Severe Thunderstorm Warning | OUN | Custer, Washita | 27 min |
| Sep 12, 9:10 PM CDT | Special Weather Statement | OUN | Oklahoma | 65 min |
| Sep 12, 10:11 PM CDT | Special Weather Statement | OUN | Pottawatomie | 64 min |
| Sep 13, 12:48 AM CDT | Areal Flood Warning | OUN | Custer, Dewey | 3 hr |
| Sep 13, 1:09 AM CDT | Areal Flood Advisory | OUN | Grady, McClain | 3 hr |
| Sep 13, 1:46 AM CDT | Areal Flood Advisory | OUN | Payne | 3 hr |
| Sep 13, 2:53 AM CDT | Areal Flood Advisory | OUN | Lincoln, Payne | 3 hr |
| Sep 13, 7:41 AM CDT | Areal Flood Advisory | OUN | Cotton, Jefferson, Stephens | 3 hr |
| Sep 13, 7:04 AM CDT | Areal Flood Advisory | OUN | Archer, Baylor, Clay, Wichita | 3 hr |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.