Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 20, NWS Norman, OK

May 3, 2019Canadian County, Oklahoma County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 3, 2019, 12:52 PM CDT for Canadian County, Oklahoma County, Oklahoma. It was in force for 68 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 3, 2019, 12:52 PM CDT (17:52 UTC)
Expired: May 3, 2019, 2:00 PM CDT
In force: 68 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Canadian County, OK, Oklahoma County, OK

The radar

The Norman radar (KTLX), 45 km from the middle of the area, began a volume at 17:53 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 12:00Z, 5.9 hours before the alert went out and 304 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 39 J/kg
Mixed-layer CIN: -296 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 May 2, 3:45 PM CDT, 21 hours 7 minutes earlier.

Area forecast discussion, May 2, 3:45 PM CDT, 21 hours 7 minutes before

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Hazardous weather outlook, May 2, 4:28 PM CDT, 20 hours 24 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 10:21 AM CDT	Special Weather Statement	OUN	Garfield, Kingfisher	24 min
May 3, 10:47 AM CDT	Special Weather Statement	OUN	Garfield, Kingfisher	28 min
May 3, 11:07 AM CDT	Special Weather Statement	OUN	Noble	23 min
May 3, 11:27 AM CDT	Special Weather Statement	OUN	Noble, Payne	33 min
May 3, 11:48 AM CDT	Special Weather Statement	OUN	Noble	27 min
May 3, 11:52 AM CDT	Special Weather Statement	OUN	Logan, Payne	23 min
May 3, 12:17 PM CDT	Special Weather Statement	OUN	Greer	28 min
May 3, 12:30 PM CDT	Special Weather Statement	OUN	Canadian, Cleveland, Grady, Lincoln, Oklahoma	30 min
May 3, 12:42 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Grady, Lincoln, Logan, McClain and 2 more	4 hr
May 3, 12:43 PM CDT	Special Weather Statement	OUN	Harmon	32 min
May 3, 12:51 PM CDT	Special Weather Statement	OUN	Jackson	24 min
May 3, 12:55 PM CDT	Special Weather Statement	OUN	Canadian, Grady, Lincoln, Oklahoma	35 min
May 3, 1:05 PM CDT	Special Weather Statement	OUN	Cleveland	25 min
May 3, 1:26 PM CDT	Special Weather Statement	OUN	Cleveland, Grady, Lincoln, Oklahoma	34 min
May 3, 1:41 PM CDT	Special Weather Statement	OUN	Kiowa	34 min
May 3, 1:43 PM CDT	Special Weather Statement	OUN	Kiowa	32 min
May 3, 2:11 PM CDT	Special Weather Statement	OUN	Kiowa	34 min
May 3, 2:18 PM CDT	Special Weather Statement	OUN	Tillman	42 min
May 3, 2:25 PM CDT	Special Weather Statement	OUN	Kiowa	35 min
May 3, 3:10 PM CDT	Special Weather Statement	OUN	Hughes	35 min
May 3, 5:03 PM CDT	Special Weather Statement	OUN	Murray	27 min
May 3, 5:43 PM CDT	Areal Flood Advisory	OUN	Carter, Murray	3 hr
May 3, 11:54 AM CDT	Special Weather Statement	OUN	Foard	51 min
May 3, 12:36 PM CDT	Special Weather Statement	OUN	Foard	39 min
May 3, 1:03 PM CDT	Special Weather Statement	OUN	Hardeman	27 min
May 3, 1:33 PM CDT	Special Weather Statement	OUN	Hardeman	27 min
May 3, 6:24 PM CDT	Special Weather Statement	OUN	Wilbarger	36 min
May 3, 6:58 PM CDT	Special Weather Statement	OUN	Wilbarger	47 min

Nearby

Flash Flood Warnings in Oklahoma, 2019 Every 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.