Alert archive / Wisconsin / Mesoscale Discussions in 2005

Mesoscale Discussion 1502

June 27, 2005Dickinson County, Iron County, Michigan; 21 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 27, 2005, 1:14 PM CDT for Dickinson County, Iron County, Michigan; 21 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 2005, 1:14 PM CDT (18:14 UTC)
Expired
Jun 27, 2005, 3:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 23 counties

Dickinson County, MI, Iron County, MI, Adams County, WI, Crawford County, WI, Florence County, WI, Forest County, WI, Juneau County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Marquette County, WI, Menominee County, WI, Monroe County, WI, Oneida County, WI, Portage County, WI, Richland County, WI, Sauk County, WI, Shawano County, WI, Vernon County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 104 km from the middle of the area, began a volume at 18:17 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.2 hours before the alert went out and 106 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 2005-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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 2005-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.1939Sfc1 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
344 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
1480 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
-40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 27, 3:37 PM CDTMesoscale DiscussionSPCBaraga, Gogebic, Houghton, Iron, Ontonagon83 min
Jun 27, 3:55 PM CDTSevere Thunderstorm WatchSPCAlger, Baraga, Delta, Dickinson, Gogebic, Iron and 5 more7 hr
Jun 27, 1:25 PM CDTSevere Thunderstorm WatchSPCBurnett, Douglas5 hr
Jun 27, 2:00 PM CDTSevere Thunderstorm WatchSPCBarron, Buffalo, Dunn, Pepin, Pierce, Polk and 1 more7 hr
Jun 27, 5:45 PM CDTSevere Thunderstorm WatchSPCBarron, Burnett, Chippewa, Douglas, Dunn, Eau Claire and 6 more3 hr
Jun 27, 6:02 PM CDTMesoscale DiscussionSPCBarron, Buffalo, Chippewa, Crawford, Dunn, Eau Claire and 7 more118 min

Nearby

Mesoscale Discussions in Wisconsin, 2005Mesoscale Discussions in Michigan, 2005Every mesoscale discussion in 2005

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.