Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 145, NWS Norman, OK

September 12, 2019Garfield County, Noble County, Oklahoma

NWS Norman, OK issued this flash flood warning at Sep 12, 2019, 4:19 PM CDT for Garfield County, Noble 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: Sep 12, 2019, 4:19 PM CDT (21:19 UTC)
Expired: Sep 12, 2019, 7:15 PM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Garfield County, OK, Noble County, OK

The radar

The Vance AFB radar (KVNX), 68 km from the middle of the area, began a volume at 21:18 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

Norman, OK (KOUN), launched 12:00Z, 9.3 hours before the alert went out and 130 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: 2 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 1180 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: 18 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 Sep 12, 3:01 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, Sep 12, 3:01 PM CDT, 1 hour 18 minutes before

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Hazardous weather outlook, Sep 12, 11:29 AM CDT, 4 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
1129 AM CDT Thu Sep 12 2019

OKZ004>048-050>052-TXZ083>090-131630-
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-
1129 AM CDT Thu Sep 12 2019

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Through Tonight...

.Thunderstorms and Heavy Rainfall...
There is a risk of severe storms this afternoon and evening
across much of western, central, and north central Oklahoma. The
main threats will be damaging wind gusts up to 65 mph and heavy
rainfall. The most likely time for severe storms will be from 3 pm
to 10 pm.

Additional showers and thunderstorms may linger across southern
Oklahoma and northern Texas overnight with a continued risk for
heavy rainfall and flooding, though the severe risk should be
diminished by this time.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

Storm spotter groups and emergency management personnel should
ready for severe weather operations through this evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday...

.Thunderstorms...
Showers and thunderstorms may linger into the morning hours on
Friday. Organized severe weather is not expected.

Get graphics and more details at weather.gov/norman...and follow
our weather forecast office on Twitter and Facebook.

Mahale

In the hours before

Local storm report, Sep 12, 3:27 PM CDT, 52 minutes before

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Local storm report, Sep 12, 3:30 PM CDT, 49 minutes before

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Special weather statement, Sep 12, 3:42 PM CDT, 37 minutes before

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Special weather statement, Sep 12, 3:48 PM CDT, 31 minutes before

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Special weather statement, Sep 12, 3:58 PM CDT, 21 minutes before

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Special weather statement, Sep 12, 4:05 PM CDT, 14 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 2:02 PM CDT	Special Weather Statement	OUN	Alfalfa	28 min
Sep 12, 2:05 PM CDT	Special Weather Statement	OUN	Ellis	25 min
Sep 12, 2:08 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	52 min
Sep 12, 2:18 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	42 min
Sep 12, 2:21 PM CDT	Special Weather Statement	OUN	Kay	24 min
Sep 12, 2:41 PM CDT	Special Weather Statement	OUN	Alfalfa	34 min
Sep 12, 2:49 PM CDT	Special Weather Statement	OUN	Major	26 min
Sep 12, 2:55 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	50 min
Sep 12, 2:56 PM CDT	Areal Flood Advisory	OUN	Kay	3 hr
Sep 12, 2:58 PM CDT	Special Weather Statement	OUN	Kay	17 min
Sep 12, 3:03 PM CDT	Flash Flood Warning	OUN	Kay	6 hr
Sep 12, 3:07 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Dewey, Major, Woods, Woodward	38 min
Sep 12, 3:11 PM CDT	Special Weather Statement	OUN	Grant	34 min
Sep 12, 3:18 PM CDT	Areal Flood Advisory	OUN	Garfield	3 hr
Sep 12, 3:27 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant	48 min
Sep 12, 3:31 PM CDT	Areal Flood Advisory	OUN	Grant, Kay	3 hr
Sep 12, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major, Woodward	50 min
Sep 12, 3:42 PM CDT	Special Weather Statement	OUN	Grant	33 min
Sep 12, 3:47 PM CDT	Areal Flood Advisory	OUN	Dewey, Major, Woods, Woodward	3 hr
Sep 12, 3:48 PM CDT	Special Weather Statement	OUN	Noble	27 min
Sep 12, 3:51 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	39 min
Sep 12, 3:58 PM CDT	Special Weather Statement	OUN	Noble	32 min
Sep 12, 4:02 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Major	43 min
Sep 12, 4:05 PM CDT	Special Weather Statement	OUN	Garfield	25 min
Sep 12, 4:09 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	51 min
Sep 12, 4:19 PM CDT	Severe Thunderstorm Warning	OUN	Garfield	41 min
Sep 12, 4:30 PM CDT	Special Weather Statement	OUN	Kay	30 min
Sep 12, 4:40 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	50 min
Sep 12, 4:43 PM CDT	Areal Flood Advisory	OUN	Blaine, Dewey, Major, Roger Mills	3 hr
Sep 12, 4:43 PM CDT	Special Weather Statement	OUN	Blaine, Dewey	32 min
Sep 12, 4:47 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	43 min
Sep 12, 5:03 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	42 min
Sep 12, 5:09 PM CDT	Special Weather Statement	OUN	Kay	36 min
Sep 12, 5:13 PM CDT	Special Weather Statement	OUN	Blaine, Dewey, Kingfisher	32 min
Sep 12, 5:20 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	55 min
Sep 12, 5:30 PM CDT	Areal Flood Advisory	OUN	Kay, Noble	3 hr
Sep 12, 5:36 PM CDT	Areal Flood Advisory	OUN	Custer, Dewey	3 hr
Sep 12, 5:39 PM CDT	Special Weather Statement	OUN	Payne	36 min
Sep 12, 5:47 PM CDT	Special Weather Statement	OUN	Blaine, Custer, Dewey, Kingfisher	28 min
Sep 12, 6:20 PM CDT	Special Weather Statement	OUN	Payne	25 min
Sep 12, 6:24 PM CDT	Special Weather Statement	OUN	Blaine, Custer	36 min
Sep 12, 6:40 PM CDT	Flash Flood Warning	OUN	Custer, Dewey	6 hr
Sep 12, 6:55 PM CDT	Special Weather Statement	OUN	Logan, Payne	50 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.