Alert archive / Michigan / Severe Thunderstorm Warnings in 1988
Severe Thunderstorm Warning 30, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 12, 1988, 4:15 PM EDT for Alpena County, Michigan. It was in force for 60 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 12, 1988, 4:15 PM EDT (20:15 UTC)
- Expired
- Aug 12, 1988, 5:15 PM EDT
- In force
- 60 min
- Issued by
- NWS Gaylord, MI
- Area
- Whole counties
County Alpena County, MI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 12, 4:23 PM EDT | Thunderstorm Wind 52 | Alpena, MI | |
| Aug 12, 4:40 PM EDT | Hail 1 | Alpena, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Sault Ste Marie, MI (KSSM), launched 12:00Z, 8.3 hours before the alert went out and 169 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.
- Mixed-layer CAPE
- 295 J/kg
- Mixed-layer CIN
- -323 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
In the hours before
Special weather statement, Aug 12, 10:45 AM EDT, 5 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAULT STE MARIE MI 1045 AM EDT FRI AUG 12 1988 ...ST MARYS RIVER SYSTEM OPEN TO SHIPPING... AT 1040 AM EDT THE U.S. COAST GUARD AT SAULT STE MARIE MI OPENED THE ST MARYS RIVER SYSTEM TO TRAFFIC. DENSE FOG THAT BLANKETED THE EASTERN UPPER PENINSULA IS LIFTING AND VISIBILITIES ARE IMPROVING. RNE
Special weather statement, Aug 12, 12:41 PM EDT, 3 hours 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUGHTON LAKE MI 1235 PM EDT FRI AUG 12 1988 AT 1230 PM EDT RADAR INDICATED A STRONG THUNDERSTORM 30 MILES WEST OF HOUGHTON LAKE. THE THUNDERSTORM WAS MOVING EAST AT 20 MILES AN HOUR. THIS MOVEMENT WILL BRING THE THUNDERSTORM INTO THE HOUGHTON LAKE... HIGGINS LAKE...AND LAKE ST. HELEN AREA BETWEEN 130 PM AND 200 PM THIS AFTERNOON. BOATERS ON THE LAKES SHOULD SEEK SAFE SHELTER. VERY HEAVY RAIN..^.STRONG GUSTY WINDS...AND DANGEROUS LIGHTNING ARE LIKELY AS THIS STORM PASSES. FLINT
Special weather statement, Aug 12, 3:38 PM EDT, 37 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 |
|---|---|---|---|---|
| Aug 12, 3:00 PM EDT | Tornado Warning | APX | Presque Isle | 52 min |
| Aug 12, 3:18 PM EDT | Tornado Warning | APX | Alpena | 57 min |
| Aug 12, 3:18 PM EDT | Tornado Warning | APX | Montmorency | 34 min |
| Aug 12, 7:06 PM EDT | Severe Thunderstorm Warning | APX | Alpena, Presque Isle | 69 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1988Every severe thunderstorm warning in 1988
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.