Alert archive / Michigan / Mesoscale Discussions in 2003

Mesoscale Discussion 2263

August 26, 20035 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Aug 26, 2003, 7:47 AM EDT for 5 counties in Michigan. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued
Aug 26, 2003, 7:47 AM EDT (11:47 UTC)
Expired
Aug 26, 2003, 8:45 AM EDT
In force
58 min
Issued by
the Storm Prediction Center

Counties Alpena County, MI, Crawford County, MI, Montmorency County, MI, Oscoda County, MI, Presque Isle County, MI

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 11.8 hours before the alert went out and 268 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, Detroit, MI at 00:00Z on 2003-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1653 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, Detroit, MI at 00:00Z on 2003-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
1653 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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>

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 11:02 PM EDTMesoscale DiscussionSPCGogebic58 min
Aug 26, 12:27 AM EDTMesoscale DiscussionSPCMonroe, Wayne63 min
Aug 26, 2:35 AM EDTMesoscale DiscussionSPCClare, Gladwin, Isabella, Lake, Mecosta, Midland and 3 more85 min
Aug 26, 3:49 AM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clinton and 12 more116 min
Aug 26, 5:41 AM EDTMesoscale DiscussionSPCAntrim, Cheboygan, Crawford, Emmet, Montmorency, Oscoda and 1 more94 min
Aug 26, 6:00 AM EDTSevere Thunderstorm WatchSPCAlpena, Antrim, Charlevoix, Cheboygan, Crawford, Emmet and 7 more4 hr
Aug 26, 9:10 AM EDTSevere Thunderstorm WatchSPCMonroe5 hr
Aug 26, 2:15 PM EDTSevere Thunderstorm WatchSPCBerrien, Branch, Cass, Saint Joseph4 hr

Nearby

Mesoscale Discussions in Michigan, 2003Every mesoscale discussion in 2003

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.