Alert archive / Iowa / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 589

June 25, 200311 counties in Illinois; 32 counties in Iowa; 20 counties in Wisconsin

The Storm Prediction Center issued this severe thunderstorm watch at Jun 25, 2003, 12:05 PM CDT for 11 counties in Illinois; 32 counties in Iowa; 20 counties in Wisconsin. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 2003, 12:05 PM CDT (17:05 UTC)
Expired
Jun 25, 2003, 6:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 63 counties

Appanoose County, IA, Benton County, IA, Buchanan County, IA, Cedar County, IA, Clayton County, IA, Clinton County, IA, Davis County, IA, Decatur County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Lucas County, IA, Mahaska County, IA, Marion County, IA, Monroe County, IA, Muscatine County, IA, Poweshiek County, IA, Scott County, IA, Van Buren County, IA, Wapello County, IA, Washington County, IA, Wayne County, IA, Carroll County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, Mercer County, IL, Ogle County, IL, Rock Island County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Winnebago County, IL, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Lafayette County, WI, Marquette County, WI, Ozaukee County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Vernon County, WI, Washington County, WI, Waukesha County, WI

The radar

The Quad Cities radar (KDVN), 72 km from the middle of the area, began a volume at 17:04 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.

Warnings issued inside it

19 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 25, 12:20 PM CDTSevere Thunderstorm WarningARXCrawford55 min
Jun 25, 12:29 PM CDTSevere Thunderstorm WarningDVNBenton61 min
Jun 25, 12:38 PM CDTSevere Thunderstorm WarningARXRichland52 min
Jun 25, 12:42 PM CDTSevere Thunderstorm WarningARXClayton48 min
Jun 25, 1:03 PM CDTSevere Thunderstorm WarningARXGrant57 min
Jun 25, 1:05 PM CDTSevere Thunderstorm WarningDMXMahaska, Marion55 min
Jun 25, 1:07 PM CDTSevere Thunderstorm WarningMKXSauk53 min
Jun 25, 1:08 PM CDTSevere Thunderstorm WarningDVNLinn37 min
Jun 25, 1:14 PM CDTSevere Thunderstorm WarningDVNDelaware61 min
Jun 25, 1:42 PM CDTSevere Thunderstorm WarningDVNIowa63 min
Jun 25, 1:52 PM CDTSevere Thunderstorm WarningDVNJohnson, Linn53 min
Jun 25, 1:56 PM CDTSevere Thunderstorm WarningDVNDubuque49 min
Jun 25, 3:02 PM CDTSevere Thunderstorm WarningMKXColumbia, Sauk58 min
Jun 25, 3:21 PM CDTSevere Thunderstorm WarningDMXWapello54 min
Jun 25, 3:31 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette59 min
Jun 25, 3:44 PM CDTSevere Thunderstorm WarningMKXDane, Rock61 min
Jun 25, 4:19 PM CDTSevere Thunderstorm WarningDVNHenry, Lee41 min
Jun 25, 4:40 PM CDTSevere Thunderstorm WarningDVNDes Moines65 min
Jun 25, 4:47 PM CDTSevere Thunderstorm WarningDVNLouisa58 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 5.1 hours before the alert went out and 77 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, Davenport, at 12:00Z on 2003-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 875 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, Davenport, at 12:00Z on 2003-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
875 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 11:50 AM CDTMesoscale DiscussionSPCBoone, Carroll, Henderson, Henry, Jo Daviess, Lee and 7 more115 min
Jun 25, 12:45 PM CDTSevere Thunderstorm WatchSPCHancock5 hr
Jun 25, 2:43 PM CDTMesoscale DiscussionSPCAdams, Boone, Bureau, Carroll, Hancock, Henderson and 13 more2 hr
Jun 25, 4:52 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 70 more113 min
Jun 25, 5:15 PM CDTSevere Thunderstorm WatchSPCAdams, Boone, Brown, Bureau, Calhoun, Cass and 44 more5 hr
Jun 24, 8:35 PM CDTTornado WatchSPCLyon, Sioux5 hr
Jun 24, 10:27 PM CDTMesoscale DiscussionSPCDickinson, Lyon, O'Brien, Osceola, Plymouth, Sioux93 min
Jun 24, 10:55 PM CDTTornado WatchSPCBuena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 11 more5 hr
Jun 25, 12:37 AM CDTMesoscale DiscussionSPCBoone, Butler, Calhoun, Carroll, Chickasaw, Crawford and 12 more113 min
Jun 25, 10:36 AM CDTMesoscale DiscussionSPCAdams, Appanoose, Benton, Cass, Clarke, Davis and 24 more114 min
Jun 25, 11:38 AM CDTMesoscale DiscussionSPCBuena Vista, Calhoun, Carroll, Clay, Emmet, Greene and 8 more2 hr
Jun 24, 7:09 PM CDTMesoscale DiscussionSPCBurnett, Dunn, Pierce, Polk, Saint Croix66 min
Jun 24, 8:15 PM CDTTornado WatchSPCBarron, Burnett, Douglas, Dunn, Pierce, Polk and 2 more6 hr
Jun 25, 1:42 PM CDTMesoscale DiscussionSPCBrown, Calumet, Columbia, Dodge, Florence, Fond du Lac and 11 more2 hr
Jun 25, 2:10 PM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Door, Florence, Forest, Kewaunee and 11 more5 hr
Jun 25, 5:14 PM CDTMesoscale DiscussionSPCBrown, Calumet, Door, Florence, Forest, Kewaunee and 10 more91 min

Nearby

Severe Thunderstorm Watches in Iowa, 2003Severe Thunderstorm Watches in Wisconsin, 2003Severe Thunderstorm Watches in Illinois, 2003Every severe thunderstorm watch in 2003

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.