Alert archive / Iowa / Mesoscale Discussions in 2003

Mesoscale Discussion 1285

June 9, 200338 counties in Iowa; 9 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2003, 9:22 PM CDT for 38 counties in Iowa; 9 counties in Missouri. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Jun 9, 2003, 9:22 PM CDT (02:22 UTC)
Expired
Jun 9, 2003, 10:15 PM CDT
In force
53 min
Issued by
the Storm Prediction Center
All 47 counties

Adair County, IA, Adams County, IA, Appanoose County, IA, Audubon County, IA, Boone County, IA, Carroll County, IA, Cass County, IA, Clarke County, IA, Crawford County, IA, Dallas County, IA, Davis County, IA, Decatur County, IA, Fremont County, IA, Greene County, IA, Guthrie County, IA, Jasper County, IA, Jefferson County, IA, Keokuk County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Pottawattamie County, IA, Poweshiek County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Washington County, IA, Wayne County, IA, Gentry County, MO, Harrison County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Schuyler County, MO, Scotland County, MO, Sullivan County, MO, Worth County, MO

The radar

The Des Moines radar (KDMX), 73 km from the middle of the area, began a volume at 02:24 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

Omaha, NE (KOAX), launched 00:00Z, 2.4 hours before the alert went out and 166 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, Omaha, NE at 00:00Z on 2003-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 223 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, Omaha, NE at 00:00Z on 2003-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 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
223 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
2359 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
272 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 9, 7:23 PM CDTMesoscale DiscussionSPCMonona2 hr
Jun 9, 8:52 PM CDTMesoscale DiscussionSPCMonona, Woodbury113 min
Jun 9, 9:45 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Boone, Calhoun and 37 more6 hr
Jun 9, 10:10 PM CDTSevere Thunderstorm WatchSPCCass, Fremont, Mills, Montgomery, Pottawattamie6 hr
Jun 9, 10:13 PM CDTMesoscale DiscussionSPCLyon, O'Brien, Osceola, Sioux2 hr
Jun 9, 11:20 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 16 more115 min
Jun 9, 11:46 PM CDTMesoscale DiscussionSPCFremont, Mills, Montgomery, Page119 min
Jun 10, 2:44 AM CDTMesoscale DiscussionSPCAppanoose, Decatur, Lucas, Mahaska, Monroe, Ringgold and 2 more2 hr
Jun 10, 12:15 AM CDTSevere Thunderstorm WatchSPCAndrew, Atchison, Buchanan, Clinton, Daviess, DeKalb and 7 more5 hr
Jun 10, 7:07 AM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Bollinger, Butler, Camden and 36 more113 min
Jun 10, 7:15 AM CDTSevere Thunderstorm WatchSPCBarry, Barton, Bates, Benton, Bollinger, Butler and 53 more6 hr
Jun 10, 10:24 AM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Bollinger, Butler and 50 more2 hr
Jun 10, 12:18 PM CDTMesoscale DiscussionSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 33 more117 min
Jun 10, 12:50 PM CDTSevere Thunderstorm WatchSPCBates, Benton, Camden, Carroll, Cass, Cedar and 17 more6 hr
Jun 10, 3:40 PM CDTSevere Thunderstorm WatchSPCAudrain, Boone, Callaway, Cole, Crawford, Dent and 23 more5 hr
Jun 10, 5:07 PM CDTMesoscale DiscussionSPCCrawford, Jefferson, Perry, Sainte Genevieve, Saint Francois, Washington113 min
Jun 10, 5:55 PM CDTMesoscale DiscussionSPCBates, Cass, Cooper, Henry, Howard, Jackson and 4 more95 min

Nearby

Mesoscale Discussions in Iowa, 2003Mesoscale Discussions in Missouri, 2003Every mesoscale discussion 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.