Alert archive / Michigan / Snow Advisories in 2007

Snow Advisory 2, NWS Marquette, MI

January 14, 20074 counties in Michigan

NWS Marquette, MI issued this snow advisory at Jan 14, 2007, 4:34 PM EST for 4 counties in Michigan. It took effect at Jan 15, 2007, 1:00 AM EST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jan 14, 2007, 4:34 PM EST (21:34 UTC)
In effect from
Jan 15, 2007, 1:00 AM EST
Expired
Jan 15, 2007, 4:20 PM EST
In force
15 hr
Issued by
NWS Marquette, MI

Counties Delta County, MI, Dickinson County, MI, Iron County, MI, Menominee County, MI

The radar

The Marquette radar (KMQT), 73 km from the middle of the area, began a volume at 21:32 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 159 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, Green Bay/Straub, WI at 12:00Z on 2007-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Green Bay/Straub, WI at 12:00Z on 2007-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 4:19 AM ESTLake Effect Snow AdvisoryMQTAlger, Baraga, Houghton, Keweenaw, Marquette, Ontonagon and 1 more60 hr
Jan 14, 12:29 PM ESTLake Effect Snow WarningMQTGogebic, Marquette35 hr

Nearby

Snow Advisories in Michigan, 2007Every snow advisory in 2007

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.