Alert archive / Oklahoma / River Flood Advisories in 2021

River Flood Advisory 38, NWS Norman, OK

May 31, 2021Comanche County, Cotton County, Oklahoma

NWS Norman, OK issued this river flood advisory at May 31, 2021, 11:27 AM CDT for Comanche County, Cotton County, Oklahoma. It was in force for 27 hr.

The area

The outline as issued.

The facts

Issued: May 31, 2021, 11:27 AM CDT (16:27 UTC)
Expired: Jun 1, 2021, 2:56 PM CDT
In force: 27 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Comanche County, OK, Cotton County, OK

The radar

The Altus AFB radar (KFDR), 59 km from the middle of the area, began a volume at 16:31 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 river

Written for the forecast point East Cache Creek near Walters (WLTO2).

Action stage: 15 ft
Minor stage: 21 ft
Moderate stage: 22 ft
Major stage: 26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07311000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

485 
WGUS84 KOUN 311627
FLSOUN

Flood Advisory
National Weather Service Norman OK
1127 AM CDT Mon May 31 2021

...The National Weather Service in Norman has issued a Flood 
Advisory for the following rivers in Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.


OKC031-033-010430-
/O.NEW.KOUN.FL.Y.0038.210531T1627Z-210602T1200Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1127 AM CDT Mon May 31 2021

The National Weather Service in Norman has issued a

* Flood Advisory for
  the East Cache Creek near Walters.
* From this morning to Wednesday morning.
* At 10:30 AM CDT Monday the stage was 8.4 feet.
* Action stage is 15.0 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek is expected to rise to a crest of 
  17.2 feet early tomorrow afternoon.
* Impact...At 17.0 feet, Some inundation of bottomlands may occur 
  along and near the creek in southern Comanche County and Cotton 
  County.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

SIX

5 follow-up statements

417 
WGUS84 KOUN 010212
FLSOUN

Flood Advisory
National Weather Service Norman OK
912 PM CDT Mon May 31 2021

...The Flood Advisory continues for the following rivers in 
Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.


OKC031-033-011415-
/O.EXT.KOUN.FL.Y.0038.000000T0000Z-210602T0600Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
912 PM CDT Mon May 31 2021

...The Flood Advisory is now in effect until early Wednesday 
morning...

The Flood Advisory continues for
  the East Cache Creek near Walters.
* Until late Tuesday night.
* At 8:30 PM CDT Monday the stage was 10.5 feet.
* Action stage is 15.0 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek is expected to rise to a crest of 
  15.3 feet early tomorrow afternoon.
* Impact...At 15.0 feet, Some inundation of bottomlands may occur 
  along and near the creek in southern Comanche County and Cotton 
  County.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

30

918 
WGUS84 KOUN 010708
FLSOUN

Flood Advisory
National Weather Service Norman OK
208 AM CDT Tue Jun 1 2021

...The Flood Advisory continues for the following rivers in 
Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Advisory means river or stream flows are elevated, or 
ponding of water in urban or other areas is occurring or is imminent.

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.


OKC031-033-011915-
/O.CON.KOUN.FL.Y.0038.000000T0000Z-210602T0600Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
208 AM CDT Tue Jun 1 2021

...The Flood Advisory remains in effect...

The Flood Advisory continues for
  the East Cache Creek near Walters.
* Until late tonight.
* At 1:30 AM CDT Tuesday the stage was 12.3 feet.
* Action stage is 15.0 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek is expected to rise to a crest of 
  15.0 feet this afternoon.
* Impact...At 15.0 feet, Some inundation of bottomlands may occur 
  along and near the creek in southern Comanche County and Cotton 
  County.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

11

803 
WGUS84 KOUN 011344
FLSOUN

Flood Advisory
National Weather Service Norman OK
844 AM CDT Tue Jun 1 2021

...The Flood Advisory continues for the following rivers in 
Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.


OKC031-033-020145-
/O.CON.KOUN.FL.Y.0038.000000T0000Z-210602T0600Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
844 AM CDT Tue Jun 1 2021

...The Flood Advisory remains in effect...

The Flood Advisory continues for
  the East Cache Creek near Walters.
* Until late tonight.
* At 7:30 AM CDT Tuesday the stage was 14.7 feet.
* Action stage is 15.0 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek will rise to 15.0 feet this 
  afternoon.
* Impact...At 15.0 feet, Some inundation of bottomlands may occur 
  along and near the creek in southern Comanche County and Cotton 
  County.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

.speg.

377 
WGUS84 KOUN 011917
FLSOUN

Flood Advisory
National Weather Service Norman OK
217 PM CDT Tue Jun 1 2021

...The Flood Advisory is extended for the following rivers in 
Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.


OKC031-033-020730-
/O.EXT.KOUN.FL.Y.0038.000000T0000Z-000000T0000Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
217 PM CDT Tue Jun 1 2021

...The Flood Advisory is now in effect until further notice...

The Flood Advisory continues for
  the East Cache Creek near Walters.
* Until further notice.
* At 1:30 PM CDT Tuesday the stage was 15.1 feet.
* Action stage is 15.0 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek is expected to fall below 15 feet 
  this afternoon and continue to fall.
* Impact...At 15.0 feet, Some inundation of bottomlands may occur 
  along and near the creek in southern Comanche County and Cotton 
  County.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

Maxwell

018 
WGUS84 KOUN 011956
FLSOUN

Flood Advisory
National Weather Service Norman OK
256 PM CDT Tue Jun 1 2021

...The Flood Advisory is cancelled for the following rivers in 
Oklahoma...

  East Cache Creek near Walters affecting Comanche and Cotton 
  Counties.

OKC031-033-012100-
/O.CAN.KOUN.FL.Y.0038.000000T0000Z-210601T1956Z/
/WLTO2.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
256 PM CDT Tue Jun 1 2021

...The Flood Advisory for the East Cache Creek near Walters has been 
cancelled...

The Flood Advisory is cancelled for
  the East Cache Creek near Walters.
* At 2:30 PM CDT Tuesday the stage was 14.9 feet.
* Flood stage is 21.0 feet.
* Forecast...The East Cache Creek has fallen below 15 feet and will 
  continue to fall.


&&

LAT...LON 3439 9836 3451 9846 3451 9831 3440 9823
      3421 9823 3422 9837

$$

.speg.

What forecasters said that day

The local office's own words before this river flood advisory 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 river flood advisory went out at May 31, 6:32 AM CDT, 4 hours 55 minutes earlier.

Area forecast discussion, May 31, 6:32 AM CDT, 4 hours 55 minutes before

Area Forecast Discussion
National Weather Service Norman OK
632 AM CDT Mon May 31 2021

...New AVIATION...

.SHORT TERM...
(Today and tonight)
Issued at 242 AM CDT Mon May 31 2021

Lead shortwave in positively tilted longwave trough will progress
eastward today and tonight, partially influenced by multiple MCVs
(one centered near Dodge City, one east of Amarillo, and another
east of Lubbock). As these move east, high chances for rain will
be seen today through tonight. The heaviest rain for the first
part of the day will exit western Oklahoma and affect central and
southern Oklahoma, and western north Texas through this afternoon.
We cancelled parts of the flood watch across northwest and west-
central Oklahoma, but will keep the southern portions of it and
expand eastward into central and southern Oklahoma and the rest of
western north Texas through tonight. These are areas where
antecedent conditions are more conduce to runoff and flooding
problems.

&&

.LONG TERM...
(Tuesday through Sunday)
Issued at 242 AM CDT Mon May 31 2021

With general subsidence and lack of recovery expected on Tuesday
across the region, most of the region should be dry, with reasonably
high PoPs continuing across southeast parts of Oklahoma early in the
day. The mentioned longwave trough axis will shift east of Oklahoma
and western north Texas on Wednesday, allowing rain chances to
decrease even further. However, in its wake, broad upper cyclone
still progd to drift slowly east and northeast over the Southern
Plains. This will keep PoPs in the forecast this weekend, with best
chances across southern and eastern portions of the forecast area.
Some of this rainfall this weekend into early next week will be
heavy, exacerbating any existing issues.

&&

.AVIATION...
(12Z TAFS)
Issued at 629 AM CDT Mon May 31 2021

A large area of rain and a few embedded thunderstorms will
progress east across the region today. Highly variable ceilings
and visibilities will occur with this area of rain. Stronger
thunderstorms may occur this afternoon and evening near the Red
River. Most of the rain should end by sunset, but low ceilings and
some areas of mist or fog are expected to continue through the
night.

CmS
&&

.UPPER AIR...
Issued at 325 AM CDT Fri May 28 2021

No Upper Air flights are currently planned.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  68  60  70  58 /  90  70  30  10
Hobart OK         71  58  73  55 / 100  40  20  10
Wichita Falls TX  76  62  75  59 / 100  70  20  20
Gage OK           66  53  70  52 /  80  40  10  10
Ponca City OK     64  57  69  56 / 100  70  30  10
Durant OK         76  65  78  63 /  80 100  80  40

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...Flood Watch through Tuesday morning for OKZ019-020-023>032-
     038>048-050>052.

     Flood Watch until 7 AM CDT this morning for OKZ021-022-033>037.

TX...Flood Watch through Tuesday morning for TXZ086-089-090.

     Flood Watch until 4 PM CDT this afternoon for TXZ087-088.

     Flood Watch until 7 AM CDT this morning for TXZ083>085.

&&

SHORT TERM...11
LONG TERM....11
AVIATION...23

Hazardous weather outlook, May 31, 5:17 AM CDT, 6 hours 10 minutes before

Hazardous Weather Outlook
National Weather Service Norman OK
517 AM CDT Mon May 31 2021

OKZ004>048-050>052-TXZ083>090-011000-
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-
517 AM CDT Mon May 31 2021

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

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

.Thunderstorms...
Scattered thunderstorms will be seen today and tonight across a
large part of Oklahoma and western north Texas. Storm chances will
decrease from northwest to southeast as the day progresses. The
main concern will be heavy rain, which could result in flooding. A
few strong to severe storms are possible across far southern
Oklahoma and western north Texas this afternoon and evening with
the main threat being damaging winds.

.Heavy Rain...
Rain totals of one to three inches will be possible through
tonight. This may lead to some flash flooding, especially in
areas that have seen several inches of rain over the past week. A
Flood Watch is in effect today and tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

.Thunderstorms...
Thunderstorm chances will continue for the rest of the week into
next weekend, mainly across southern Oklahoma and northern Texas.
Organized severe storms are not expected.

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

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 8:11 PM CDT	River Flood Warning	OUN	Major, Woods, Woodward	25 hr
May 30, 8:14 PM CDT	River Flood Advisory	OUN	Kingfisher, Logan	48 hr
May 30, 8:15 PM CDT	River Flood Advisory	OUN	Alfalfa, Woods	19 hr
May 31, 1:52 AM CDT	Special Weather Statement	OUN	Harmon	38 min
May 31, 2:59 AM CDT	Areal Flood Advisory	OUN	Beckham, Greer, Harmon, Jackson, Kiowa	6 hr
May 31, 4:07 AM CDT	Flash Flood Warning	OUN	Greer, Harmon	5 hr
May 31, 6:46 AM CDT	Areal Flood Advisory	OUN	Comanche	3 hr
May 31, 11:26 AM CDT	River Flood Warning	OUN	Greer, Jackson	3 hr
May 31, 11:30 AM CDT	River Flood Advisory	OUN	Cotton	51 hr
May 31, 2:46 PM CDT	River Flood Advisory	OUN	Greer, Jackson	19 min
May 31, 3:34 PM CDT	River Flood Warning	OUN	Pottawatomie, Seminole	10 hr
May 31, 3:35 PM CDT	River Flood Advisory	OUN	Blaine, Canadian	6 hr

Nearby

River Flood Advisories in Oklahoma, 2021 Every river flood advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.