Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 142, NWS Norman, OK

August 30, 2019Cleveland County, Pottawatomie County, Oklahoma

NWS Norman, OK issued this flash flood warning at Aug 30, 2019, 9:51 AM CDT for Cleveland County, Pottawatomie 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 30, 2019, 9:51 AM CDT (14:51 UTC)
Expired: Aug 30, 2019, 12:45 PM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Cleveland County, OK, Pottawatomie County, OK

The radar

The Norman radar (KTLX), 19 km from the middle of the area, began a volume at 14:52 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

Springfield, MO (KSGF), launched 12:00Z, 2.9 hours before the alert went out and 354 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1042 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: -45 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 Aug 30, 6:36 AM CDT, 3 hours 15 minutes earlier.

Area forecast discussion, Aug 30, 6:36 AM CDT, 3 hours 15 minutes before

Area Forecast Discussion
National Weather Service Norman OK
636 AM CDT Fri Aug 30 2019

.AVIATION...
TAFS 3012/3112...
Scattered to numerous showers and thunderstorms will move across
northern and central Oklahoma this morning.  Ceilings will mainly
be VFR, but heavy rainfall associated with storms will lower
visibility to MVFR/IFR. Most terminals could be impacted through
at least 16Z. Additional showers and thunderstorms are possible
late this afternoon and night.

&&

.PREV DISCUSSION... /issued 340 AM CDT Fri Aug 30 2019/

DISCUSSION...
The western edge of the MCS moving across northeastern Oklahoma
will affect areas through Oklahoma City and to the southeast
through late morning. Isolated thunderstorms continue to form over
southwestern KS and the panhandles near the trough of the upper
short wave moving eastward today. Scattered showers and storms are
expected over the eastern 2/3 of OK today with higher chances in
the southeastern quarter later today. The flood watch will
continue until midday over north central, given the amount of rain
that has fallen recently. Residual boundaries from the MCS and
isolated storms will be in the area for afternoon heating.
Overnight, another, likely weaker, short wave trough is expected
to translate across Kansas. Upper flow will probably be more zonal
tonight along with a weaker low- level jet. Scattered storms are
expected, mostly across northern Oklahoma overnight. Once that
trough exits later Saturday and mesoscale surface boundaries
dissipate, the rest of the weekend and next week will be dominated
by a strong upper high pressure building to the east from the
southwestern U.S. with little chance for rain through the week.
Temperatures will be a bit above normals after the weekend.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  89  70  89  69 /  70  30  30  30
Hobart OK         96  72  94  71 /  40  30  20  20
Wichita Falls TX  97  72  94  70 /  20  10  10  10
Gage OK           93  68  89  68 /  30  40  20  20
Ponca City OK     82  69  83  68 /  60  50  60  40
Durant OK         93  71  91  70 /  40  20  20  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch until 1 PM CDT this afternoon for OKZ007-008-012-013-
     019-020-026.

TX...None.
&&

99/99/99

Hazardous weather outlook, Aug 30, 7:49 AM CDT, 2 hours 2 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
749 AM CDT Fri Aug 30 2019

OKZ004>048-050>052-TXZ083>090-311300-
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-
749 AM CDT Fri Aug 30 2019

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

.DAY ONE...Today and Tonight...

.Thunderstorms...
Showers and thunderstorms will continue to move across the area
this morning into potentially early afternoon. Some of the storms
could become strong to severe with strong wind gusts and hail the
main concerns.

Another round of storms will be possible later this evening into
early Saturday. Some of the storms could become strong to severe
with strong winds and hail the main concerns.

.Heavy Rain...
Locally heavy rain that could produce flooding and/or flash
flooding will be possible through early Saturday.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

.Thunderstorms...
Scattered, non-severe thunderstorms are expected Saturday over
most of Oklahoma. Thunderstorm chances end early Sunday.

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 30, 9:11 AM CDT, 40 minutes before

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Special weather statement, Aug 30, 9:24 AM CDT, 27 minutes before

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Special weather statement, Aug 30, 9:32 AM CDT, 19 minutes before

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Local storm report, Aug 30, 9:37 AM CDT, 14 minutes before

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Special weather statement, Aug 30, 9:42 AM CDT, 9 minutes before

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Special weather statement, Aug 30, 9:48 AM CDT, 3 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
Aug 29, 11:48 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	42 min
Aug 30, 12:29 AM CDT	Special Weather Statement	OUN	Alfalfa	46 min
Aug 30, 12:35 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Woods	40 min
Aug 30, 12:35 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Woods	40 min
Aug 30, 1:17 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant	5 min
Aug 30, 1:20 AM CDT	Special Weather Statement	OUN	Kay	40 min
Aug 30, 1:24 AM CDT	Special Weather Statement	OUN	Alfalfa	36 min
Aug 30, 1:49 AM CDT	Special Weather Statement	OUN	Garfield	41 min
Aug 30, 2:07 AM CDT	Special Weather Statement	OUN	Kay	23 min
Aug 30, 2:18 AM CDT	Special Weather Statement	OUN	Kay	27 min
Aug 30, 2:19 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	41 min
Aug 30, 3:09 AM CDT	Special Weather Statement	OUN	Noble	51 min
Aug 30, 3:46 AM CDT	Areal Flood Advisory	OUN	Kay, Noble, Payne	3 hr
Aug 30, 4:00 AM CDT	Special Weather Statement	OUN	Lincoln, Payne	30 min
Aug 30, 4:08 AM CDT	Special Weather Statement	OUN	Blaine	37 min
Aug 30, 4:55 AM CDT	Special Weather Statement	OUN	Okfuskee	50 min
Aug 30, 5:20 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	40 min
Aug 30, 5:48 AM CDT	Special Weather Statement	OUN	Cleveland, Pottawatomie	27 min
Aug 30, 5:50 AM CDT	Areal Flood Advisory	OUN	Custer, Kiowa, Washita	3 hr
Aug 30, 5:56 AM CDT	Areal Flood Advisory	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie, Seminole	3 hr
Aug 30, 6:12 AM CDT	Areal Flood Advisory	OUN	Alfalfa, Garfield, Grant, Major, Woods	3 hr
Aug 30, 6:26 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Dewey	49 min
Aug 30, 6:30 AM CDT	Special Weather Statement	OUN	Major, Woodward	30 min
Aug 30, 6:52 AM CDT	Flash Flood Warning	OUN	Washita	3 hr
Aug 30, 7:13 AM CDT	Areal Flood Advisory	OUN	Hughes, Pottawatomie, Seminole	3 hr
Aug 30, 7:16 AM CDT	Areal Flood Advisory	OUN	Blaine, Custer, Dewey, Major, Woodward	3 hr
Aug 30, 7:23 AM CDT	Severe Thunderstorm Warning	OUN	Dewey	39 min
Aug 30, 7:25 AM CDT	Areal Flood Advisory	OUN	Lincoln, Logan, Noble, Payne	3 hr
Aug 30, 7:39 AM CDT	Flash Flood Warning	OUN	Lincoln, Logan, Noble, Payne	3 hr
Aug 30, 7:47 AM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	43 min
Aug 30, 8:00 AM CDT	Areal Flood Advisory	OUN	Jefferson	3 hr
Aug 30, 8:17 AM CDT	Special Weather Statement	OUN	Custer	28 min
Aug 30, 8:22 AM CDT	Flash Flood Warning	OUN	Blaine, Caddo, Custer, Dewey, Washita	3 hr
Aug 30, 8:30 AM CDT	Special Weather Statement	OUN	Lincoln	30 min
Aug 30, 8:32 AM CDT	Areal Flood Advisory	OUN	Beckham, Roger Mills	3 hr
Aug 30, 8:35 AM CDT	Special Weather Statement	OUN	Beckham	25 min
Aug 30, 8:37 AM CDT	Special Weather Statement	OUN	Cleveland	23 min
Aug 30, 8:39 AM CDT	Special Weather Statement	OUN	Washita	36 min
Aug 30, 8:42 AM CDT	Areal Flood Advisory	OUN	Lincoln, Logan, Oklahoma, Pottawatomie	3 hr
Aug 30, 8:53 AM CDT	Severe Thunderstorm Warning	OUN	Kiowa, Washita	52 min
Aug 30, 8:59 AM CDT	Special Weather Statement	OUN	Cleveland	31 min
Aug 30, 9:08 AM CDT	Special Weather Statement	OUN	Beckham	37 min
Aug 30, 9:11 AM CDT	Special Weather Statement	OUN	Kiowa	34 min
Aug 30, 9:12 AM CDT	Areal Flood Advisory	OUN	Cleveland, Oklahoma	3 hr
Aug 30, 9:16 AM CDT	Flash Flood Warning	OUN	Caddo, Kiowa, Washita	3 hr
Aug 30, 9:24 AM CDT	Special Weather Statement	OUN	Harmon, Jackson	36 min
Aug 30, 9:32 AM CDT	Special Weather Statement	OUN	Cleveland, McClain, Pottawatomie	28 min
Aug 30, 9:42 AM CDT	Special Weather Statement	OUN	Beckham	48 min
Aug 30, 9:44 AM CDT	Areal Flood Advisory	OUN	Grady, McClain	3 hr
Aug 30, 9:48 AM CDT	Special Weather Statement	OUN	McClain, Pottawatomie	27 min
Aug 30, 10:00 AM CDT	Areal Flood Advisory	OUN	Garvin, McClain, Murray, Pontotoc	3 hr
Aug 30, 10:13 AM CDT	Special Weather Statement	OUN	Garvin, McClain, Pottawatomie	32 min
Aug 30, 10:33 AM CDT	Areal Flood Advisory	OUN	Garvin, Grady, McClain, Stephens	3 hr
Aug 30, 10:40 AM CDT	Areal Flood Advisory	OUN	Comanche	3 hr
Aug 30, 10:42 AM CDT	Special Weather Statement	OUN	Cotton, Stephens	33 min
Aug 30, 10:47 AM CDT	Areal Flood Warning	OUN	Lincoln, Logan, Noble, Payne	4 hr
Aug 30, 11:12 AM CDT	Areal Flood Advisory	OUN	Carter, Johnston, Love, Marshall, Murray	3 hr
Aug 30, 11:14 AM CDT	Special Weather Statement	OUN	Cotton, Stephens	31 min
Aug 30, 11:16 AM CDT	Areal Flood Warning	OUN	Blaine, Caddo, Custer, Dewey, Washita	4 hr
Aug 30, 11:22 AM CDT	Special Weather Statement	OUN	Love	23 min
Aug 30, 11:24 AM CDT	Special Weather Statement	OUN	Washita	36 min
Aug 30, 11:25 AM CDT	Areal Flood Advisory	OUN	Jefferson	3 hr
Aug 30, 11:40 AM CDT	Special Weather Statement	OUN	Jefferson	50 min
Aug 30, 11:48 AM CDT	Flash Flood Warning	OUN	Jefferson	3 hr
Aug 30, 11:55 AM CDT	Special Weather Statement	OUN	Comanche, Cotton, Jackson, Stephens, Tillman	65 min
Aug 30, 11:56 AM CDT	Areal Flood Advisory	OUN	Beckham, Roger Mills, Washita	3 hr
Aug 30, 11:58 AM CDT	Special Weather Statement	OUN	Beckham	62 min
Aug 30, 12:10 PM CDT	Areal Flood Warning	OUN	Caddo, Kiowa, Washita	4 hr
Aug 30, 12:15 PM CDT	Areal Flood Advisory	OUN	Bryan, Johnston, Marshall	3 hr
Aug 30, 12:33 PM CDT	Special Weather Statement	OUN	Beckham	27 min
Aug 30, 2:19 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	19 hr
Aug 29, 7:15 PM CDT	Special Weather Statement	OUN	Wilbarger	30 min
Aug 30, 12:12 PM CDT	Special Weather Statement	OUN	Archer	33 min
Aug 30, 12:34 PM CDT	Special Weather Statement	OUN	Baylor	26 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.