Alert archive / Oklahoma / Flash Flood Warnings in 2019

Flash Flood Warning 124, NWS Norman, OK

July 3, 2019Custer County, Washita County, Oklahoma

NWS Norman, OK issued this flash flood warning at Jul 3, 2019, 8:58 PM CDT for Custer County, Washita 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
Jul 3, 2019, 8:58 PM CDT (01:58 UTC)
Expired
Jul 4, 2019, 12:00 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Storm-based polygon
Flood severity
None

Counties Custer County, OK, Washita County, OK

The radar

The Altus AFB radar (KFDR), 123 km from the middle of the area, began a volume at 02:01 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 00:00Z, 2.0 hours before the alert went out and 147 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2019-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2002 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2019-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2002 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
1110 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.2

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 Jul 3, 6:14 PM CDT, 2 hours 44 minutes earlier.

Area forecast discussion, Jul 3, 6:14 PM CDT, 2 hours 44 minutes before
Area Forecast Discussion
National Weather Service Norman OK
614 PM CDT Wed Jul 3 2019

.AVIATION...
Scattered storms may continue a few more hours before dying down
with the setting sun. There is some indication of lower clouds
building over eastern Oklahoma overnight, but chances are low for
it to impact any of our TAF sites. Scattered storms may be
possible again tomorrow afternoon, though chances will be very
low.

Day

&&

.PREV DISCUSSION... /issued 257 PM CDT Wed Jul 3 2019/

DISCUSSION...
A weak mid and upper level shear axis will translate east through
Thursday, with overall height rises in its wake by Friday.
Therefore, after this evening/overnight, the coverage of storms
will be lower than the past several days.

Meanwhile, a small cluster of thunderstorms, just north of the
OKC area, has been building slowly southward this afternoon. The
cold pool with this activity will likely foster more development
into central Oklahoma through the mid evening hours. Other
isolated storms may develop during peak heating along and east of
the aforementioned shear axis. The stronger storms will be
capable of producing strong to near severe wind gusts along with
high rainfall rates. Most of the storms should decrease/dissipate
near sunset.

Over the weekend, a shortwave trough may move along the northern
periphery of a mid level ridge. This will result in a better
chance of storms across at least northern Oklahoma. The trend
going into next week is for hotter temperatures with little or no
chance of rain.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  72  91  73  93 /  30  10  10  10
Hobart OK         73  96  74  98 /  20   0  10   0
Wichita Falls TX  74  94  75  96 /  20  10  10  10
Gage OK           70  95  71  97 /  20  10  10  10
Ponca City OK     73  91  73  94 /  20  20  10  10
Durant OK         73  89  74  92 /  10  20  10  10

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...None.
TX...None.
&&

03/14/14
Hazardous weather outlook, Jul 3, 1:12 PM CDT, 7 hours 46 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Norman OK
112 PM CDT Wed Jul 3 2019

OKZ004>048-050>052-TXZ083>090-041815-
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-
112 PM CDT Wed Jul 3 2019

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

.DAY ONE...Through Tonight...

Isolated to scattered thunderstorms will remain possible through
at least early evening. Widespread severe weather is not expected
but a few storms could become severe with damaging winds of up to
65 mph and hail up to the size of nickels possible. Otherwise,
gusty winds and heavy rain that could lead to flooding and reduce
visibility will be the main concerns. Showers and thunderstorms
are expected to decrease towards or after sunset.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

.Thunderstorms...
Storm chances will continue through the early part of next week.
Chances will be highest this weekend, mainly over northern
Oklahoma. Strong wind gusts and heavy rainfall will be possible
with any storms that form.

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, Jul 3, 7:24 PM CDT, 1 hour 34 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 3, 7:35 PM CDT, 1 hour 23 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 3, 7:36 PM CDT, 1 hour 22 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 3, 7:37 PM CDT, 1 hour 21 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Jul 3, 8:17 PM CDT, 41 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 3, 8:40 PM CDT, 18 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 7:08 PM CDTSpecial Weather StatementOUNCuster52 min
Jul 3, 7:21 PM CDTSevere Thunderstorm WarningOUNCuster39 min
Jul 3, 7:24 PM CDTSpecial Weather StatementOUNCuster36 min
Jul 3, 7:29 PM CDTSevere Thunderstorm WarningOUNCuster, Washita46 min
Jul 3, 7:42 PM CDTAreal Flood AdvisoryOUNCuster, Washita3 hr
Jul 3, 7:57 PM CDTSevere Thunderstorm WarningOUNCuster48 min
Jul 3, 8:01 PM CDTFlash Flood WarningOUNCuster3 hr
Jul 3, 8:17 PM CDTSpecial Weather StatementOUNWashita28 min
Jul 3, 8:43 PM CDTSevere Thunderstorm WarningOUNCuster, Washita47 min
Jul 3, 8:48 PM CDTAreal Flood AdvisoryOUNCuster, Washita3 hr
Jul 3, 9:29 PM CDTSevere Thunderstorm WarningOUNWashita46 min
Jul 3, 10:15 PM CDTSpecial Weather StatementOUNWashita45 min
Jul 3, 10:29 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita38 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.