Alert archive / Oklahoma / Flash Flood Warnings in 2019
Flash Flood Warning 133, NWS Norman, OK
NWS Norman, OK issued this flash flood warning at Aug 16, 2019, 7:38 PM CDT for Harper County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 16, 2019, 7:38 PM CDT (00:38 UTC)
- Expired
- Aug 16, 2019, 10:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Flood severity
- None
County Harper County, OK
The radar
The Dodge City radar (KDDC), 111 km from the middle of the area, began a volume at 00:36 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 111 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
- 2044 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 2733 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.5
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Aug 16, 7:00 PM CDT, 38 minutes earlier.
Area forecast discussion, Aug 16, 7:00 PM CDT, 38 minutes before
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</html>Hazardous weather outlook, Aug 16, 11:47 AM CDT, 7 hours 51 minutes before
Hazardous Weather Outlook National Weather Service Norman OK 1147 AM CDT Fri Aug 16 2019 OKZ004>048-050>052-TXZ083>090-171115- 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- 1147 AM CDT Fri Aug 16 2019 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through tonight... .Thunderstorms... There is a risk of a few strong to severe thunderstorms today, mainly along and northwest of a line from Hollis to Watonga to Stillwater. The strongest storms will be capable of producing wind gusts to 60 mph, heavy downpours, and hail up to the size of quarters. The most likely time for severe weather will be between 5 pm and 11 pm. Isolated to widely scattered may develop late this afternoon across southern Kansas and northern Oklahoma. Other storms will be possible farther south across the eastern Texas panhandle and western Oklahoma. Modest instability and favorable wind fields will result in the possibility of a few strong to severe storms. .Heat... Heat indices around 105 are expected this afternoon across much of the area. .DAYS TWO THROUGH SEVEN...Saturday through Thursday... .Thunderstorms... There is Marginal Risk of severe thunderstorms Saturday afternoon and evening across much of western and northern Oklahoma and portions of western north Texas. Large hail and strong winds will be the main hazards. .Heat... Afternoon heat indices between 100 and 105 degrees will continue across much of the area through the middle of next week. 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 16, 5:11 PM CDT, 2 hours 27 minutes before
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</html>Special weather statement, Aug 16, 5:36 PM CDT, 2 hours 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 536 PM CDT Fri Aug 16 2019 OKZ004-162330- Harper OK- 536 PM CDT Fri Aug 16 2019 ...SIGNIFICANT WEATHER ADVISORY FOR western Harper County Until 630 PM CDT... AT 534 PM CDT, a strong thunderstorm was located 4 miles southeast of Rosston, moving east at 15 MPH. HAZARDS INCLUDE... Wind gusts over 50 MPH... Heavy rain can lead to reduced visibility... Frequent cloud to ground lightning... Locations impacted include... Laverne, Buffalo and Rosston. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely and be alert for threatening weather conditions. && LAT...LON 3695 9962 3665 9960 3670 10001 3687 10000 TIME...MOT...LOC 2234Z 266DEG 12KT 3678 9986 03
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:29 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 46 min |
| Aug 16, 8:14 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 46 min |
| Aug 16, 8:17 PM CDT | Special Weather Statement | OUN | Woods | 43 min |
| Aug 16, 8:27 PM CDT | Severe Thunderstorm Warning | OUN | Woods, Woodward | 63 min |
| Aug 16, 9:00 PM CDT | Special Weather Statement | OUN | Harper | 60 min |
| Aug 16, 9:27 PM CDT | Severe Thunderstorm Warning | OUN | Woods, Woodward | 63 min |
| Aug 16, 9:39 PM CDT | Areal Flood Advisory | OUN | Harper, Woods, Woodward | 3 hr |
| Aug 16, 10:04 PM CDT | Special Weather Statement | OUN | Alfalfa | 56 min |
| Aug 16, 10:06 PM CDT | Special Weather Statement | OUN | Alfalfa | 24 min |
| Aug 16, 10:35 PM CDT | Special Weather Statement | OUN | Alfalfa, Woods | 55 min |
| Aug 16, 10:41 PM CDT | Areal Flood Warning | OUN | Harper | 3 hr |
| Aug 16, 11:29 PM CDT | Special Weather Statement | OUN | Alfalfa, Woods | 31 min |
| Aug 16, 11:45 PM CDT | Special Weather Statement | OUN | Woodward | 30 min |
| Aug 16, 11:52 PM CDT | Special Weather Statement | OUN | Beckham, Roger Mills | 38 min |
| Aug 16, 11:58 PM CDT | Special Weather Statement | OUN | Alfalfa, Woods | 32 min |
| Aug 17, 12:01 AM CDT | Special Weather Statement | OUN | Major | 29 min |
| Aug 17, 12:11 AM CDT | Special Weather Statement | OUN | Kay | 34 min |
| Aug 17, 12:17 AM CDT | Severe Thunderstorm Warning | OUN | Kay | 43 min |
| Aug 17, 12:25 AM CDT | Special Weather Statement | OUN | Alfalfa, Grant, Woods | 50 min |
| Aug 17, 12:28 AM CDT | Special Weather Statement | OUN | Major | 47 min |
| Aug 17, 12:31 AM CDT | Special Weather Statement | OUN | Beckham, Ellis, Roger Mills | 44 min |
| Aug 17, 1:10 AM CDT | Special Weather Statement | OUN | Garfield, Kingfisher | 35 min |
| Aug 17, 1:11 AM CDT | Special Weather Statement | OUN | Noble | 34 min |
| Aug 17, 1:19 AM CDT | Special Weather Statement | OUN | Major | 26 min |
| Aug 17, 1:40 AM CDT | Special Weather Statement | OUN | Garfield, Grant, Kingfisher | 35 min |
| Aug 17, 1:43 AM CDT | Special Weather Statement | OUN | Dewey, Roger Mills | 32 min |
| Aug 17, 1:44 AM CDT | Special Weather Statement | OUN | Kay | 31 min |
| Aug 17, 1:54 AM CDT | Special Weather Statement | OUN | Kingfisher | 36 min |
| Aug 17, 2:12 AM CDT | Special Weather Statement | OUN | Kay | 33 min |
| Aug 17, 3:13 AM CDT | Heat Advisory | OUN | Alfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 29 more | 49 hr |
| Aug 17, 4:00 AM CDT | Special Weather Statement | OUN | Ellis | 30 min |
| Aug 17, 5:31 PM CDT | Special Weather Statement | OUN | Harmon | 29 min |
| Aug 17, 5:32 PM CDT | Special Weather Statement | OUN | Beckham | 28 min |
| Aug 17, 5:52 PM CDT | Severe Thunderstorm Warning | OUN | Greer, Harmon, Jackson | 38 min |
| Aug 17, 6:01 PM CDT | Special Weather Statement | OUN | Beckham | 29 min |
| Aug 17, 6:29 PM CDT | Special Weather Statement | OUN | Harmon, Jackson | 31 min |
| Aug 17, 6:33 PM CDT | Special Weather Statement | OUN | Beckham | 27 min |
| Aug 17, 6:54 PM CDT | Areal Flood Advisory | OUN | Greer, Harmon, Jackson | 2 hr |
| Aug 17, 6:56 PM CDT | Special Weather Statement | OUN | Beckham | 34 min |
| Aug 17, 6:59 PM CDT | Special Weather Statement | OUN | Jackson | 31 min |
Nearby
Flash Flood Warnings in Oklahoma, 2019Every flash flood 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.