Alert archive / Oregon / Flash Flood Warnings in 1996

Flash Flood Warning 4, NWS Portland, OR

November 18, 1996Douglas County, Josephine County, Oregon

NWS Portland, OR issued this flash flood warning at Nov 18, 1996, 5:05 PM PST for Douglas County, Josephine County, Oregon. It was in force for 19 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
Nov 18, 1996, 5:05 PM PST (01:05 UTC)
Expired
Nov 19, 1996, 12:00 PM PST
In force
19 hr
Issued by
NWS Portland, OR
Area
Whole counties

Counties Douglas County, OR, Josephine County, OR

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 1.1 hours before the alert went out and 69 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, Medford/Jackson, OR at 00:00Z on 1996-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Medford/Jackson, OR at 00:00Z on 1996-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 374 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
374 m²/s²
0-3 km storm-relative helicity
850 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.

In the hours before

Local storm report, Nov 18, 2:20 PM PST, 2 hours 45 minutes before
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Local storm report, Nov 18, 3:29 PM PST, 1 hour 36 minutes before
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<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.
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The office that day

Everything else NWS Portland, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 18, 5:25 PM PSTFlash Flood WarningPQRMarion, Polk9 hr
Nov 18, 5:25 PM PSTFlash Flood WarningPQRClackamas9 hr
Nov 18, 5:35 PM PSTFlash Flood WarningPQRMarion, Polk8 hr
Nov 18, 5:35 PM PSTFlash Flood WarningPQRClackamas8 hr
Nov 18, 8:48 PM PSTFlash Flood WarningPQRCoos12 hr
Nov 18, 8:48 PM PSTFlash Flood WarningPQRCurry, Douglas, Jackson, Josephine12 hr
Nov 18, 9:27 PM PSTFlash Flood WarningPQRBenton, Lane, Lincoln, Linn5 hr
Nov 18, 9:44 PM PSTFlash Flood WarningPQRBenton, Lane, Lincoln4 hr
Nov 18, 9:44 PM PSTFlash Flood WarningPQRLinn4 hr

Nearby

Flash Flood Warnings in Oregon, 1996Every flash flood warning in 1996

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.