Alert archive / Oklahoma / Flash Flood Warnings in 1993

Flash Flood Warning 26, NWS Norman, OK

May 9, 1993Logan County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 9, 1993, 3:22 AM CDT for Logan County, Oklahoma. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 9, 1993, 3:22 AM CDT (08:22 UTC)
Expired
May 9, 1993, 6:30 AM CDT
In force
3 hr
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Logan County, OK

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 8.4 hours before the alert went out and 78 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 1993-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 1993-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 square meters per square second.19395878Sfc1 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
6 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 8, 4:35 PM CDT, 10 hours 47 minutes earlier.

Area forecast discussion, May 8, 4:35 PM CDT, 10 hours 47 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
430 PM CDT SAT MAY 8 1993

VRY ACTV SVR WX THIS AFTN PRECLUDING MUCH FCST DISC. WL CONT WITH FFA
FOR MOST OF FCST AREA XPCT FOR NWRN OK. SVR WX AND MAJOR HVY RN PRBLMS
TO PERSIST INTO EVE.

32

.OK...FFA ZNS 6>21 TNGT
.TX...FFA TNGT ZNS 76 77

In the hours before

Local storm report, May 8, 10:39 PM CDT, 4 hours 43 minutes before
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Local storm report, May 8, 10:40 PM CDT, 4 hours 42 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.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:05 PM CDTSevere Thunderstorm WarningOUNLove40 min
May 8, 7:22 PM CDTTornado WarningOUNCarter68 min
May 8, 7:26 PM CDTSevere Thunderstorm WarningOUNWoods49 min
May 8, 7:29 PM CDTTornado WarningOUNMurray46 min
May 8, 7:40 PM CDTFlash Flood WarningOUNCarter3 hr
May 8, 8:23 PM CDTTornado WarningOUNCarter37 min
May 8, 8:28 PM CDTSevere Thunderstorm WarningOUNCoal, Hughes, Johnston, Pontotoc62 min
May 8, 8:35 PM CDTTornado WarningOUNJohnston40 min
May 8, 9:43 PM CDTSevere Thunderstorm WarningOUNLove47 min
May 8, 10:05 PM CDTSevere Thunderstorm WarningOUNMarshall40 min
May 9, 12:22 AM CDTSevere Thunderstorm WarningOUNGreer, Harmon53 min
May 9, 12:51 AM CDTSevere Thunderstorm WarningOUNBeckham, Kiowa, Washita39 min
May 9, 12:51 AM CDTSevere Thunderstorm WarningOUNGreer, Harmon39 min
May 9, 3:00 AM CDTFlash Flood WarningOUNBlaine, Kingfisher3 hr
May 9, 5:24 AM CDTFlash Flood WarningOUNPayne111 min
May 9, 7:25 AM CDTFlash Flood WarningOUNCarter, Coal, Johnston, Marshall, Pontotoc3 hr
May 9, 7:25 AM CDTFlash Flood WarningOUNLove3 hr
May 9, 9:46 AM CDTFlash Flood WarningOUNBryan, Choctaw4 hr
May 9, 1:38 PM CDTFlash Flood WarningOUNBryan, Choctaw3 hr
May 9, 2:40 PM CDTFlash Flood WarningOUNAtoka, Pushmataha3 hr
May 9, 3:46 PM CDTSevere Thunderstorm WarningOUNChoctaw44 min
May 9, 4:30 PM CDTFlash Flood WarningOUNBryan, Choctaw3 hr
May 9, 6:00 PM CDTFlash Flood WarningOUNPushmataha3 hr
May 8, 7:10 PM CDTTornado WarningOUNClay35 min
May 8, 7:56 PM CDTSevere Thunderstorm WarningOUNArcher49 min
May 8, 9:45 PM CDTSevere Thunderstorm WarningOUNClay45 min

Nearby

Flash Flood Warnings in Oklahoma, 1993Every flash flood warning in 1993

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.