Alert archive / Michigan / Lake Effect Snow Warnings in 2011
Lake Effect Snow Warning 2, NWS Marquette, MI
NWS Marquette, MI issued this lake effect snow warning at Jan 6, 2011, 4:34 PM EST for 9 counties in Michigan. It was in force for 62 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 6, 2011, 4:34 PM EST (21:34 UTC)
- Expired
- Jan 9, 2011, 7:00 AM EST
- In force
- 62 hr
- Issued by
- NWS Marquette, MI
Counties Alger County, MI, Baraga County, MI, Delta County, MI, Gogebic County, MI, Houghton County, MI, Keweenaw County, MI, Marquette County, MI, Ontonagon County, MI, Schoolcraft County, MI
The radar
The Marquette radar (KMQT), 31 km from the middle of the area, began a volume at 21:35 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.6 hours before the alert went out and 234 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
- 704 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this lake effect snow warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Marquette, MI wrote its last area forecast discussion before this lake effect snow warning went out at Jan 6, 12:48 PM EST, 3 hours 46 minutes earlier.
Area forecast discussion, Jan 6, 12:48 PM EST, 3 hours 46 minutes before
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Local storm report, Jan 6, 11:27 AM EST, 5 hours 7 minutes before
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</html>Local storm report, Jan 6, 2:21 PM EST, 2 hours 13 minutes before
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</html>The office that day
Everything else NWS Marquette, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 6, 5:55 AM EST | Heavy Freezing Spray Warning | MQT | 55 hr |
Nearby
Lake Effect Snow Warnings in Michigan, 2011Every lake effect snow warning in 2011
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.