Alert archive / Michigan / Wind Chill Advisories in 2008
Wind Chill Advisory 3, NWS Detroit, MI
NWS Detroit, MI issued this wind chill advisory at Dec 20, 2008, 9:08 PM EST for 4 counties in Michigan. It took effect at Dec 21, 2008, 7:00 AM EST. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2008, 9:08 PM EST (02:08 UTC)
- In effect from
- Dec 21, 2008, 7:00 AM EST
- Expired
- Dec 22, 2008, 10:00 AM EST
- In force
- 27 hr
- Issued by
- NWS Detroit, MI
Counties Lenawee County, MI, Monroe County, MI, Washtenaw County, MI, Wayne County, MI
The radar
The Detroit radar (KDTX), 70 km from the middle of the area, began a volume at 02:11 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, 2.1 hours before the alert went out and 73 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
- 605 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 242 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 Dec 20, 8:44 PM EST, 24 minutes earlier.
Area forecast discussion, Dec 20, 8:44 PM EST, 24 minutes before
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Wind Chill Advisories in Michigan, 2008Every wind chill advisory in 2008
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.