Alert archive / Michigan / Wind Chill Advisories in 2009
Wind Chill Advisory 2, NWS Detroit, MI
NWS Detroit, MI issued this wind chill advisory at Feb 4, 2009, 3:38 AM EST for 17 counties in Michigan. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Feb 4, 2009, 3:38 AM EST (08:38 UTC)
- Expired
- Feb 5, 2009, 11:00 AM EST
- In force
- 31 hr
- Issued by
- NWS Detroit, MI
Counties Bay County, MI, Genesee County, MI, Huron County, MI, Lapeer County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Midland County, MI, Monroe County, MI, Oakland County, MI, Saginaw County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 26 km from the middle of the area, began a volume at 08:35 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 00:00Z, 8.6 hours before the alert went out and 25 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
- 612 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory 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 wind chill advisory went out at Feb 3, 6:20 PM EST, 9 hours 18 minutes earlier.
Area forecast discussion, Feb 3, 6:20 PM EST, 9 hours 18 minutes before
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</html>Hazardous weather outlook, Feb 3, 4:00 PM EST, 11 hours 38 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.
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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 3, 9:50 PM EST | Lake Effect Snow Advisory | DTX | Huron, Saint Clair, Sanilac | 10 hr |
| Feb 4, 3:38 AM EST | Lake Effect Snow Warning | DTX | Saint Clair | 4 hr |
| Feb 4, 2:45 PM EST | Brisk Wind Advisory | DTX | 13 hr |
Nearby
Wind Chill Advisories in Michigan, 2009Every wind chill advisory in 2009
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.