Alert archive / Oklahoma / Special Weather Statements in 2017
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Apr 29, 2017, 7:07 PM CDT for Coal County, Johnston County, Oklahoma. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2017, 7:07 PM CDT (00:07 UTC)
- Expired
- Apr 29, 2017, 7:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Norman, OK
Counties Coal County, OK, Johnston County, OK
The radar
The Norman radar (KTLX), 126 km from the middle of the area, began a volume at 00:06 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.1 hours before the alert went out and 207 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 619 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 13.3
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 29, 6:58 PM CDT, 9 minutes earlier.
Area forecast discussion, Apr 29, 6:58 PM CDT, 9 minutes before
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Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 403 PM CDT Sat Apr 29 2017 OKZ004>048-050>052-TXZ083>090-302115- 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- 403 PM CDT Sat Apr 29 2017 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through this evening... .Thunderstorms... There is a Marginal Risk of severe thunderstorms across far southeastern Oklahoma. Location... The risk area is along and southeast of an Atoka to Durant line. Timing... Through 7 pm this evening. Impacts... Half dollar size hail and 60 mph. Discussion... Scattered showers and thunderstorms will continue to develop across south central and southeast Oklahoma this afternoon and evening. A few storms may produce some hail and very strong winds. Some of the storms may produce locally heavy rainfall which could result in some flooding. .SPOTTER AND EMERGENCY MANAGEMENT STATEMENT... Storm spotter groups and emergency management personnel across the risk area should be ready for severe weather operations. .DAYS TWO THROUGH SEVEN...Sunday through Friday... .Thunderstorms... Chances for thunderstorms will return Tuesday night through Wednesday night across parts of Oklahoma and north Texas. Severe storms are not anticipated. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Special weather statement, Apr 29, 3:40 PM CDT, 3 hours 27 minutes before
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</html>Local storm report, Apr 29, 4:03 PM CDT, 3 hours 4 minutes before
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</html>Special weather statement, Apr 29, 7:07 PM CDT, 0 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 |
|---|---|---|---|---|
| Apr 29, 7:23 PM CDT | Special Weather Statement | OUN | Hughes | 52 min |
| Apr 29, 7:33 PM CDT | Areal Flood Advisory | OUN | Atoka, Bryan, Coal, Hughes, Johnston, Love and 2 more | 117 min |
| Apr 29, 8:03 PM CDT | Special Weather Statement | OUN | Seminole | 27 min |
| Apr 29, 9:10 PM CDT | Special Weather Statement | OUN | Bryan | 50 min |
| Apr 29, 9:38 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan | 37 min |
| Apr 29, 10:16 PM CDT | Special Weather Statement | OUN | Bryan | 29 min |
| Apr 29, 10:37 PM CDT | Special Weather Statement | OUN | Atoka | 23 min |
| Apr 29, 10:52 PM CDT | Special Weather Statement | OUN | Atoka | 23 min |
| Apr 30, 2:16 AM CDT | River Flood Warning | OUN | Logan | 15 hr |
| Apr 30, 2:18 AM CDT | River Flood Warning | OUN | Logan | 29 hr |
| Apr 30, 3:32 AM CDT | Wind Advisory | OUN | Atoka, Beckham, Blaine, Bryan, Caddo, Canadian and 34 more | 16 hr |
| Apr 30, 4:05 AM CDT | River Flood Warning | OUN | Jackson, Kiowa, Tillman | 29 hr |
Nearby
Special Weather Statements in Oklahoma, 2017Every special weather statement in 2017
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.