Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 124, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 13, 2018, 10:38 PM CDT for Beckham County, Oklahoma. It was in force for 37 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
- May 13, 2018, 10:38 PM CDT (03:38 UTC)
- Expired
- May 13, 2018, 11:15 PM CDT
- In force
- 37 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Beckham County, OK
The radar
The Altus AFB radar (KFDR), 120 km from the middle of the area, began a volume at 03:40 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 |
|---|---|---|---|
| May 13, 3:59 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.6 hours before the alert went out and 183 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3885 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 May 13, 8:43 PM CDT, 1 hour 55 minutes earlier.
Area forecast discussion, May 13, 8:43 PM CDT, 1 hour 55 minutes before
Area Forecast Discussion National Weather Service Norman OK 843 PM CDT Sun May 13 2018 .DISCUSSION... Overall, shower and storm coverage has decreased over the past few hours, but a few severe storms remain. The stronger/rotating storms will likely continue through the late evening, therefore, parts of western Oklahoma, and north Texas will have a risk of severe weather. A few areas across the eastern panhandle of Texas have received very heavy rainfall this evening, but do not expect this to translate into western Oklahoma. Depending on trends, we will also need to watch for heatburst late this evening/overnight. && .PREV DISCUSSION... /issued 615 PM CDT Sun May 13 2018/ DISCUSSION... Please see the 00Z aviation discussion below. AVIATION... A large area of thunderstorms will continue to move toward the western OK terminals over the next 1-2 hours. Very strong wind gusts will be the main threat, although some hail can't be ruled out. Also, even after the thunderstorms dissipate the threat of wind gusts over 50 kt may continue, especially near WWR and CSM. We will watch this closely for amendments. Otherwise, expect VFR cigs for most of the terminals overnight. Winds will remain S to SSE around 15 to 20 kt. && .PRELIMINARY POINT TEMPS/POPS... Oklahoma City OK 70 87 68 84 / 30 30 50 20 Hobart OK 71 92 66 86 / 30 10 70 30 Wichita Falls TX 72 90 68 89 / 30 20 60 20 Gage OK 67 95 62 78 / 60 40 50 30 Ponca City OK 72 89 66 83 / 20 20 60 20 Durant OK 70 85 68 85 / 20 20 50 30 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...None. TX...None. &&
Hazardous weather outlook, May 13, 8:18 PM CDT, 2 hours 20 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 818 PM CDT Sun May 13 2018 OKZ004>048-050>052-TXZ083>090-141115- 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- 818 PM CDT Sun May 13 2018 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Tonight... .Thunderstorms... There is Slight Risk of severe thunderstorms. Location... The Slight Risk area is west of a line from Alva to Clinton to Frederick and Vernon, Texas. A Marginal Risk area surrounds the Slight Risk area west of a line from Enid to Wichita Falls, Texas. Timing... through 11 pm. Impacts... Damaging winds up to 80 mph is the main hazard. Large hail up to the size of golf balls is also possible. Discussion... Scattered strong to severe thunderstorms will move across western Oklahoma and far western north Texas through the late evening. Thunderstorm intensity is expected to decrease after sunset. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across the risk areas should prepare for severe weather operations. ..Heavy Rainfall... Locally heavy rainfall of 1 to 2 inches in a short period of time from thunderstorms may cause some flooding in a few locations across western Oklahoma and western north Texas. .DAYS TWO THROUGH SEVEN...Monday through Saturday... .Thunderstorms... Some strong to severe thunderstorms with damaging winds as the main hazard are possible Monday through Tuesday night, mainly during the late afternoon and evening hours. Low thunderstorm chances are forecast Wednesday through Friday across parts of Oklahoma and north Texas. Severe storm potential remains very low Wednesday through Friday. Thunderstorm chances may increase again Friday night and Saturday and strong to severe thunderstorms are possible. .Heavy Rainfall and Flash Flooding... Locally heavy rainfall of 1 to 2 inches in a short period of time from slow moving thunderstorms may cause flash flooding in a few locations across Oklahoma and north Texas Monday through early Wednesday. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Local storm report, May 13, 9:14 PM CDT, 1 hour 24 minutes before
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</html>Special weather statement, May 13, 9:21 PM CDT, 1 hour 17 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 |
|---|---|---|---|---|
| May 13, 7:09 PM CDT | Special Weather Statement | OUN | Harper | 21 min |
| May 13, 7:24 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 36 min |
| May 13, 8:02 PM CDT | Special Weather Statement | OUN | Harper | 28 min |
| May 13, 8:04 PM CDT | Special Weather Statement | OUN | Roger Mills | 41 min |
| May 13, 8:14 PM CDT | Special Weather Statement | OUN | Ellis | 61 min |
| May 13, 8:17 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 58 min |
| May 13, 8:42 PM CDT | Special Weather Statement | OUN | Woods | 48 min |
| May 13, 8:46 PM CDT | Special Weather Statement | OUN | Harper | 59 min |
| May 13, 8:57 PM CDT | Severe Thunderstorm Warning | OUN | Woods | 44 min |
| May 13, 9:04 PM CDT | Special Weather Statement | OUN | Ellis | 41 min |
| May 13, 9:09 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills | 51 min |
| May 13, 9:13 PM CDT | Special Weather Statement | OUN | Roger Mills | 47 min |
| May 13, 9:21 PM CDT | Special Weather Statement | OUN | Harmon | 54 min |
| May 13, 9:31 PM CDT | Special Weather Statement | OUN | Dewey | 29 min |
| May 13, 9:49 PM CDT | Special Weather Statement | OUN | Woods | 56 min |
| May 13, 10:26 PM CDT | Special Weather Statement | OUN | Greer | 34 min |
| May 13, 10:28 PM CDT | Special Weather Statement | OUN | Harmon | 47 min |
| May 13, 10:55 PM CDT | Severe Thunderstorm Warning | OUN | Harmon, Jackson | 50 min |
| May 13, 11:03 PM CDT | Special Weather Statement | OUN | Kiowa | 57 min |
| May 13, 11:09 PM CDT | Special Weather Statement | OUN | Washita | 21 min |
| May 13, 11:21 PM CDT | Special Weather Statement | OUN | Jackson | 24 min |
| May 13, 11:28 PM CDT | Special Weather Statement | OUN | Beckham | 47 min |
| May 13, 11:35 PM CDT | Special Weather Statement | OUN | Washita | 55 min |
| May 13, 11:47 PM CDT | Special Weather Statement | OUN | Jackson, Kiowa | 28 min |
| May 14, 12:05 AM CDT | High Wind Warning | OUN | Blaine, Caddo, Custer, Washita | 115 min |
| May 14, 12:06 AM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 39 min |
| May 14, 12:33 AM CDT | Special Weather Statement | OUN | Greer | 27 min |
| May 14, 12:45 AM CDT | Special Weather Statement | OUN | Kiowa | 30 min |
| May 14, 12:59 AM CDT | Special Weather Statement | OUN | Greer | 31 min |
| May 14, 1:12 AM CDT | Special Weather Statement | OUN | Comanche | 33 min |
| May 14, 1:32 AM CDT | Special Weather Statement | OUN | Kiowa | 28 min |
| May 14, 5:17 PM CDT | Special Weather Statement | OUN | Roger Mills | 28 min |
| May 14, 5:29 PM CDT | Special Weather Statement | OUN | Beckham | 31 min |
| May 14, 5:30 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Greer, Harmon | 45 min |
| May 14, 5:42 PM CDT | Special Weather Statement | OUN | Harmon | 33 min |
| May 14, 5:57 PM CDT | Severe Thunderstorm Warning | OUN | Greer, Harmon | 48 min |
| May 14, 5:58 PM CDT | Special Weather Statement | OUN | Beckham | 32 min |
| May 14, 6:00 PM CDT | Special Weather Statement | OUN | Ellis | 30 min |
| May 14, 6:05 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Roger Mills | 55 min |
| May 14, 6:09 PM CDT | Severe Thunderstorm Warning | OUN | Dewey, Ellis, Woodward | 51 min |
| May 14, 6:14 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 46 min |
| May 14, 6:42 PM CDT | Severe Thunderstorm Warning | OUN | Major, Woodward | 48 min |
| May 14, 6:46 PM CDT | Severe Thunderstorm Warning | OUN | Beckham, Greer, Harmon, Jackson | 44 min |
| May 14, 6:49 PM CDT | Special Weather Statement | OUN | Custer | 26 min |
| May 14, 6:56 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 64 min |
| May 13, 10:33 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 42 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2018Every severe thunderstorm warning in 2018
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.