Alert archive / Michigan / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 67, NWS Gaylord, MI

October 13, 1999Missaukee County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Oct 13, 1999, 4:21 AM EDT for Missaukee County, Michigan. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 13, 1999, 4:21 AM EDT (08:21 UTC)
Expired: Oct 13, 1999, 5:10 AM EDT
In force: 49 min
Issued by: NWS Gaylord, MI
Area: Whole counties

County Missaukee County, MI

The radar

The NCL Michigan radar (KAPX), 70 km from the middle of the area, began a volume at 08:22 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

Alpena, MI (KAPX), launched 00:00Z, 8.4 hours before the alert went out and 228 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1797 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 354 m²/s²
0-3 km storm-relative helicity: 504 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gaylord, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 13, 12:40 AM EDT, 3 hours 41 minutes earlier.

Area forecast discussion, Oct 13, 12:40 AM EDT, 3 hours 41 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GAYLORD MI
1240 AM EDT WED OCT 13 1999

LATEST REGIONAL LDS SHOWING LIGHTNING STRIKES OVER PORTIONS OF
NORTHWEST LOWER MICHIGAN EXTENDING INTO CENTRAL LAKE MICHIGAN
AND WISCONSIN. ALSO THE LATEST TVC SURFACE OBSERVATION REPORTED
THUNDER.

THE RUC IS SHOWING A NARROW BAND OF HIGH 850 DEW PT AIR (AROUND 7C)
AND INCREASED INSTABILITY... MOVING INTO NORTHWEST LOWER MICHIGAN
GENERALLY BETWEEN PETOSKEY AND MANISTEE. THE SURFACE FRONT IS
CURRENTLY MOVING OVER NORTHWEST LOWER...THEREFORE WILL UPDATE NORTHWEST
LOWER FOR LIKELY SHOWERS AND A CHANCE OF THUNDERSTORMS.

.APX...NONE.

SWR

In the hours before

Local storm report, Oct 13, 2:49 AM EDT, 1 hour 32 minutes before

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Local storm report, Oct 13, 2:49 AM EDT, 1 hour 32 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 Gaylord, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 13, 1:30 AM EDT	Severe Thunderstorm Warning	APX	Manistee	60 min
Oct 13, 1:38 AM EDT	Severe Thunderstorm Warning	APX	Benzie	62 min
Oct 13, 2:02 AM EDT	Severe Thunderstorm Warning	APX	Wexford	48 min
Oct 13, 2:22 AM EDT	Severe Thunderstorm Warning	APX	Missaukee, Roscommon	63 min
Oct 13, 2:35 AM EDT	Severe Thunderstorm Warning	APX	Manistee	50 min

Nearby

Severe Thunderstorm Warnings in Michigan, 1999 Every severe thunderstorm warning in 1999

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.