Alert archive / Michigan / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 18, NWS Gaylord, MI

June 11, 1999Presque Isle County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jun 11, 1999, 4:23 PM EDT for Presque Isle County, Michigan. It was in force for 47 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: Jun 11, 1999, 4:23 PM EDT (20:23 UTC)
Expired: Jun 11, 1999, 5:10 PM EDT
In force: 47 min
Issued by: NWS Gaylord, MI
Area: Whole counties

County Presque Isle County, MI

The radar

The NCL Michigan radar (KAPX), 88 km from the middle of the area, began a volume at 20:22 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

Detroit, MI (KDTX), launched 12:00Z, 8.4 hours before the alert went out and 300 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: 1779 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: -14 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 Jun 11, 4:10 PM EDT, 13 minutes earlier.

Area forecast discussion, Jun 11, 4:10 PM EDT, 13 minutes before

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In the hours before

Special weather statement, Jun 11, 11:27 AM EDT, 4 hours 56 minutes before

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Special weather statement, Jun 11, 11:27 AM EDT, 4 hours 56 minutes before

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Local storm report, Jun 11, 1:55 PM EDT, 2 hours 28 minutes before

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Local storm report, Jun 11, 1:55 PM EDT, 2 hours 28 minutes before

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    <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">
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Local storm report, Jun 11, 2:08 PM EDT, 2 hours 15 minutes before

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      <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 Gaylord, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 10:20 PM EDT	Severe Thunderstorm Warning	APX	Gladwin	40 min
Jun 10, 11:16 PM EDT	Flash Flood Warning	APX	Gladwin	4 hr
Jun 11, 5:11 PM EDT	Severe Thunderstorm Warning	APX	Presque Isle	29 min
Jun 11, 6:47 PM EDT	Severe Thunderstorm Warning	APX	Ogemaw	63 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.