Alert archive / Minnesota / Areal Flood Warnings in 2010

Areal Flood Warning 4, NWS Twin Cities, MN

March 13, 2010Scott County, Minnesota

NWS Twin Cities, MN issued this areal flood warning at Mar 13, 2010, 1:58 PM CST for Scott County, Minnesota. It was in force for 24 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
Mar 13, 2010, 1:58 PM CST (19:58 UTC)
Expired
Mar 14, 2010, 2:30 PM CDT
In force
24 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

County Scott County, MN

The radar

The Minneapolis radar (KMPX), 22 km from the middle of the area, began a volume at 19:58 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

Minneapolis, MN (KMPX), launched 12:00Z, 8.0 hours before the alert went out and 23 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, Minneapolis, MN at 12:00Z on 2010-03-13Temperature 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, Minneapolis, MN at 12:00Z on 2010-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.193958Sfc1 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
535 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
129 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 areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this areal flood warning went out at Mar 13, 11:45 AM CST, 2 hours 13 minutes earlier.

Area forecast discussion, Mar 13, 11:45 AM CST, 2 hours 13 minutes before
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Hazardous weather outlook, Mar 13, 11:33 AM CST, 2 hours 25 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 Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 7:01 PM CSTAreal Flood WarningMPXScott12 hr
Mar 12, 9:30 PM CSTDense Fog AdvisoryMPXBlue Earth, Brown, Carver, Chippewa, Douglas, Faribault and 24 more13 hr
Mar 13, 6:52 AM CSTAreal Flood WarningMPXScott4 hr
Mar 13, 9:59 AM CSTAreal Flood WarningMPXScott24 hr
Mar 13, 2:59 PM CSTRiver Flood WatchMPXTodd6 days
Mar 13, 2:59 PM CSTRiver Flood WatchMPXDakota, Washington6 days
Mar 13, 3:54 PM CSTRiver Flood WatchMPXDakota, Washington21 hr
Mar 13, 3:54 PM CSTRiver Flood WatchMPXTodd21 hr

Nearby

Areal Flood Warnings in Minnesota, 2010Every areal flood warning in 2010

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.