Alert archive / Oklahoma / Special Weather Statements in 2017
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Aug 19, 2017, 7:35 PM CDT for Grant County, Kay County, Oklahoma. It was in force for 25 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
- Aug 19, 2017, 7:35 PM CDT (00:35 UTC)
- Expired
- Aug 19, 2017, 8:00 PM CDT
- In force
- 25 min
- Issued by
- NWS Norman, OK
Counties Grant County, OK, Kay County, OK
The radar
The Vance AFB radar (KVNX), 43 km from the middle of the area, began a volume at 00:35 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
Dodge City, (KDDC), launched 00:00Z, 0.6 hours before the alert went out and 226 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
- -40 J/kg
- Mixed-layer LCL
- 2757 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 19, 6:28 PM CDT, 1 hour 7 minutes earlier.
Area forecast discussion, Aug 19, 6:28 PM CDT, 1 hour 7 minutes before
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</html>Hazardous weather outlook, Aug 19, 3:58 PM CDT, 3 hours 37 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 358 PM CDT Sat Aug 19 2017 OKZ004>048-050>052-TXZ083>090-201000- 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- 358 PM CDT Sat Aug 19 2017 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...This Afternoon and Tonight... .Thunderstorms... Scattered thunderstorms will be seen across western north Texas and far southern Oklahoma into early this evening. Isolated severe storms will be possible with damaging wind gusts the main threat. Storms are expected to weaken or dissipate completely by sunset. .Heat... A Heat Advisory is in effect for much of central and eastern Oklahoma through 7 pm today, as heat indices are expected to be near or above 105. .DAYS TWO THROUGH SEVEN...Sunday through Friday... .Thunderstorms... There will be at least a slight chance of thunderstorms each day. The greatest chance for strong and severe storms will be Tuesday night and Wednesday. 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, Aug 19, 3:32 PM CDT, 4 hours 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 332 PM CDT SAT AUG 19 2017 TXZ090-192100- Clay TX- 332 PM CDT SAT AUG 19 2017 ...SIGNIFICANT WEATHER ADVISORY FOR southwestern Clay County Until 400 PM CDT... AT 329 PM CDT, strong thunderstorms were located 5 miles south of Bluegrove and 8 miles southeast of Windthorst, moving northeast at 15 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Wind gusts to 50 MPH... LAT...LON 3347 9842 3368 9842 3375 9806 3346 9816 TIME...MOT...LOC 2029Z 233DEG 14KT 3360 9825 3348 9835 ..speg.
Local storm report, Aug 19, 4:30 PM CDT, 3 hours 5 minutes before
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</html>Special weather statement, Aug 19, 7:35 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 |
|---|---|---|---|---|
| Aug 20, 2:40 AM CDT | Heat Advisory | OUN | Atoka, Bryan, Cleveland, Coal, Garfield, Grant and 11 more | 16 hr |
| Aug 20, 4:26 AM CDT | Special Weather Statement | OUN | Harmon | 49 min |
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.