Alert archive / Michigan / Areal Flood Warnings in 2021
Areal Flood Warning 2, NWS Detroit, MI
NWS Detroit, MI issued this areal flood warning at Feb 6, 2021, 3:30 PM EST for Saint Clair County, Michigan. It was in force for 13 days. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 6, 2021, 3:30 PM EST (20:30 UTC)
- Expired
- Feb 19, 2021, 3:00 PM EST
- In force
- 13 days
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Flood severity
- None
County Saint Clair County, MI
The radar
The Detroit radar (KDTX), 71 km from the middle of the area, began a volume at 20:30 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.5 hours before the alert went out and 323 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 239 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Detroit, MI wrote its last area forecast discussion before this areal flood warning went out at Feb 6, 12:09 PM EST, 3 hours 21 minutes earlier.
Area forecast discussion, Feb 6, 12:09 PM EST, 3 hours 21 minutes before
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<link rel="stylesheet" href="index.css">
</head>
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<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>
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If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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</html>The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 7:09 PM EST | Small Craft Advisory | DTX | 9 hr | |
| Feb 5, 8:47 PM EST | Special Weather Statement | DTX | Genesee | 58 min |
| Feb 5, 10:05 PM EST | Special Weather Statement | DTX | Genesee, Lapeer | 70 min |
| Feb 6, 3:39 AM EST | Small Craft Advisory | DTX | 15 hr | |
| Feb 6, 10:03 AM EST | Areal Flood Advisory | DTX | Saint Clair | 5 hr |
Nearby
Areal Flood Warnings in Michigan, 2021Every areal flood warning in 2021
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.