Alert archive / Michigan / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 32, NWS Marquette, MI

July 17, 2008Delta County, Menominee County, Michigan

NWS Marquette, MI issued this severe thunderstorm warning at Jul 17, 2008, 5:56 PM EDT for Delta County, Menominee County, Michigan. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 17, 2008, 5:56 PM EDT (21:56 UTC)
Expired
Jul 17, 2008, 6:30 PM EDT
In force
34 min
Issued by
NWS Marquette, MI
Area
Storm-based polygon

Counties Delta County, MI, Menominee County, MI

The radar

The Marquette radar (KMQT), 101 km from the middle of the area, began a volume at 21:59 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 17, 1:14 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 149 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 2008-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 983 joules per kilogram.LCLLFCEL10008507005003002001001 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 2008-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.193958Sfc1 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
983 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 3:46 AM EDTSpecial Marine WarningMQT59 min
Jul 17, 4:47 PM EDTAreal Flood AdvisoryMQTIron3 hr
Jul 17, 4:54 PM EDTAreal Flood AdvisoryMQTGogebic, Ontonagon3 hr
Jul 17, 5:37 PM EDTSpecial Marine WarningMQT83 min
Jul 17, 6:14 PM EDTSpecial Marine WarningMQT2 hr
Jul 17, 6:20 PM EDTSpecial Marine WarningMQT115 min
Jul 17, 6:24 PM EDTSpecial Marine WarningMQT2 hr
Jul 17, 7:03 PM EDTSpecial Marine WarningMQT42 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2008Every severe thunderstorm warning in 2008

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.