Alert archive / Michigan / Wind Advisories in 2007

Wind Advisory 14, NWS Marquette, MI

October 18, 2007Houghton County, Keweenaw County, Michigan

NWS Marquette, MI issued this wind advisory at Oct 18, 2007, 4:15 AM EDT for Houghton County, Keweenaw County, Michigan. It took effect at Oct 18, 2007, 9:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Oct 18, 2007, 4:15 AM EDT (08:15 UTC)
In effect from
Oct 18, 2007, 9:00 AM EDT
Expired
Oct 18, 2007, 3:00 PM EDT
In force
6 hr
Issued by
NWS Marquette, MI

Counties Houghton County, MI, Keweenaw County, MI

The radar

The Marquette radar (KMQT), 95 km from the middle of the area, began a volume at 08:15 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

International Fa, MN (KINL), launched 00:00Z, 8.3 hours before the alert went out and 397 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, International Fa, MN at 00:00Z on 2007-10-18Temperature 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, International Fa, MN at 00:00Z on 2007-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939587897Sfc1 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
723 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
180 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
Oct 18, 4:24 PM EDTSevere Thunderstorm WarningMQTGogebic21 min
Oct 18, 4:34 PM EDTSpecial Marine WarningMQT41 min
Oct 18, 5:17 PM EDTSpecial Marine WarningMQT43 min
Oct 18, 5:45 PM EDTSpecial Marine WarningMQT45 min
Oct 18, 5:50 PM EDTSevere Thunderstorm WarningMQTOntonagon40 min
Oct 18, 5:51 PM EDTSevere Thunderstorm WarningMQTBaraga, Houghton39 min
Oct 18, 6:10 PM EDTSevere Thunderstorm WarningMQTOntonagon35 min
Oct 18, 6:24 PM EDTSpecial Marine WarningMQT51 min
Oct 18, 6:49 PM EDTSpecial Marine WarningMQT56 min

Nearby

Wind Advisories in Michigan, 2007Every wind 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.