Alert archive / Wisconsin / Mesoscale Discussions in 2005

Mesoscale Discussion 1840

July 24, 200529 counties in Michigan; Carlton County, Pine County, Minnesota; 31 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2005, 12:02 AM EDT for 29 counties in Michigan; Carlton County, Pine County, Minnesota; 31 counties in Wisconsin. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
Jul 24, 2005, 12:02 AM EDT (04:02 UTC)
Expired
Jul 24, 2005, 2:00 AM EDT
In force
118 min
Issued by
the Storm Prediction Center
All 62 counties

Antrim County, MI, Baraga County, MI, Benzie County, MI, Charlevoix County, MI, Cheboygan County, MI, Clare County, MI, Crawford County, MI, Delta County, MI, Dickinson County, MI, Emmet County, MI, Gogebic County, MI, Grand Traverse County, MI, Iron County, MI, Kalkaska County, MI, Lake County, MI, Leelanau County, MI, Manistee County, MI, Mason County, MI, Mecosta County, MI, Menominee County, MI, Missaukee County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Otsego County, MI, Roscommon County, MI, Schoolcraft County, MI, Wexford County, MI, Carlton County, MN, Pine County, MN, Ashland County, WI, Bayfield County, WI, Brown County, WI, Burnett County, WI, Calumet County, WI, Door County, WI, Douglas County, WI, Florence County, WI, Forest County, WI, Iron County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Ozaukee County, WI, Price County, WI, Rusk County, WI, Sawyer County, WI, Shawano County, WI, Sheboygan County, WI, Taylor County, WI, Vilas County, WI, Washburn County, WI, Waupaca County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 114 km from the middle of the area, began a volume at 04:05 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 00:00Z, 4.0 hours before the alert went out and 117 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 00:00Z on 2005-07-24Temperature 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 00:00Z on 2005-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 square meters per square second.19395878Sfc1 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
1000 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
293 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
Jul 24, 12:35 AM EDTSevere Thunderstorm WatchSPCBaraga, Delta, Dickinson, Gogebic, Iron, Marquette and 2 more6 hr
Jul 24, 2:57 AM EDTMesoscale DiscussionSPCAntrim, Benzie, Clare, Delta, Dickinson, Gladwin and 25 more2 hr
Jul 24, 3:40 AM EDTSevere Thunderstorm WatchSPCAlcona, Alpena, Antrim, Arenac, Bay, Benzie and 34 more7 hr
Jul 24, 5:59 AM EDTMesoscale DiscussionSPCAntrim, Arenac, Barry, Bay, Benzie, Branch and 45 more91 min
Jul 24, 8:30 AM EDTSevere Thunderstorm WatchSPCBarry, Branch, Calhoun, Clinton, Eaton, Genesee and 14 more4 hr
Jul 24, 10:22 AM EDTMesoscale DiscussionSPCArenac, Bay, Genesee, Gladwin, Gratiot, Huron and 15 more53 min
Jul 24, 4:46 PM EDTMesoscale DiscussionSPCArenac, Barry, Bay, Branch, Calhoun, Clinton and 25 more119 min
Jul 24, 4:30 AM EDTSevere Thunderstorm WatchSPCLincoln, Rock2 hr
Jul 24, 6:22 AM EDTMesoscale DiscussionSPCLincoln, Pipestone, Rock83 min
Jul 24, 11:33 AM EDTMesoscale DiscussionSPCBlue Earth, Brown, Cottonwood, Dodge, Faribault, Fillmore and 15 more117 min
Jul 24, 5:50 PM EDTSevere Thunderstorm WatchSPCFreeborn, Mower5 hr
Jul 24, 7:26 PM EDTMesoscale DiscussionSPCCrawford, Grant, Iowa, Lafayette, Richland64 min

Nearby

Mesoscale Discussions in Wisconsin, 2005Mesoscale Discussions in Michigan, 2005Mesoscale Discussions in Minnesota, 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.