Alert archive / Michigan / Winter Storm Warnings in 2010
Winter Storm Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this winter storm warning at Feb 8, 2010, 4:05 PM EST for 19 counties in Michigan. It took effect at Feb 9, 2010, 7:00 AM EST. It was in force for 27 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
- Feb 8, 2010, 4:05 PM EST (21:05 UTC)
- In effect from
- Feb 9, 2010, 7:00 AM EST
- Expired
- Feb 10, 2010, 9:42 AM EST
- In force
- 27 hr
- Issued by
- NWS Grand Rapids, MI
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 17 km from the middle of the area, began a volume at 21:08 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 12:00Z, 9.1 hours before the alert went out and 157 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
- 1199 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Rapids, MI wrote its last area forecast discussion before this winter storm warning went out at Feb 8, 2:39 PM EST, 1 hour 26 minutes earlier.
Area forecast discussion, Feb 8, 2:39 PM EST, 1 hour 26 minutes before
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</html>Hazardous weather outlook, Feb 8, 5:10 AM EST, 10 hours 55 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 8, 3:21 AM EST | Gale Watch | GRR | 33 hr | |
| Feb 8, 4:05 PM EST | Winter Weather Advisory | GRR | Clare, Lake, Mason, Osceola | 42 hr |
Nearby
Winter Storm Warnings in Michigan, 2010Every winter storm warning in 2010
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.