Alert archive / Michigan / Winter Storm Warnings in 2006

Winter Storm Warning 1, NWS Detroit, MI

January 20, 20065 counties in Michigan

NWS Detroit, MI issued this winter storm warning at Jan 20, 2006, 3:42 PM EST for 5 counties in Michigan. It took effect at Jan 20, 2006, 10:00 PM EST. It was in force for 6 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 20, 2006, 3:42 PM EST (20:42 UTC)
In effect from
Jan 20, 2006, 10:00 PM EST
Expired
Jan 21, 2006, 3:40 AM EST
In force
6 hr
Issued by
NWS Detroit, MI

Counties Genesee County, MI, Lapeer County, MI, Saint Clair County, MI, Sanilac County, MI, Shiawassee County, MI

The radar

The Detroit radar (KDTX), 46 km from the middle of the area, began a volume at 20:48 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

Alpena, MI (KAPX), launched 12:00Z, 8.7 hours before the alert went out and 231 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.

Skew-T log-pSkew-T log-p diagram, Alpena, MI at 12:00Z on 2006-01-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Alpena, MI at 12:00Z on 2006-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939587897117136156175Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
5 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 20, 3:42 PM ESTHeavy Snow WarningDTXBay, Huron, Midland, Saginaw, Sanilac, Tuscola17 hr
Jan 20, 3:42 PM ESTWinter Weather AdvisoryDTXLivingston, Macomb, Oakland17 hr

Nearby

Winter Storm Warnings in Michigan, 2006Every winter storm warning in 2006

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.