Alert archive / Missouri / Mesoscale Discussions in 2004

Mesoscale Discussion 1703

July 15, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Jul 15, 2004, 11:34 PM CDT for 4 states. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jul 15, 2004, 11:34 PM CDT (04:34 UTC)
Expired: Jul 16, 2004, 1:00 AM CDT
In force: 86 min
Issued by: the Storm Prediction Center

All 75 counties

Adair County, IA, Adams County, IA, Audubon County, IA, Cass County, IA, Decatur County, IA, Fremont County, IA, Harrison County, IA, Mills County, IA, Monona County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Douglas County, KS, Franklin County, KS, Jackson County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Nemaha County, KS, Pottawatomie County, KS, Shawnee County, KS, Wyandotte County, KS, Andrew County, MO, Atchison County, MO, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Henry County, MO, Holt County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Pettis County, MO, Platte County, MO, Ray County, MO, Saline County, MO, Worth County, MO, Burt County, NE, Cass County, NE, Dodge County, NE, Douglas County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Sarpy County, NE, Saunders County, NE, Washington County, NE

The radar

The Pleasant Hill radar (KEAX), 169 km from the middle of the area, began a volume at 04:35 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 nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.6 hours before the alert went out and 151 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3709 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1012 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 9.3

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.

Issued	Product	Office	Counties	Lasted
Jul 16, 10:51 AM CDT	Mesoscale Discussion	SPC	Cedar, Clayton, Clinton, Delaware, Dubuque, Jackson and 3 more	2 hr
Jul 16, 12:10 PM CDT	Severe Thunderstorm Watch	SPC	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	5 hr
Jul 16, 2:45 PM CDT	Mesoscale Discussion	SPC	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	90 min
Jul 15, 10:00 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Graham, Jewell, Lincoln, Mitchell and 10 more	90 min
Jul 16, 3:33 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Bourbon, Brown, Coffey and 18 more	117 min
Jul 15, 8:01 PM CDT	Mesoscale Discussion	SPC	Barry, Jasper, McDonald, Newton	119 min
Jul 16, 3:45 AM CDT	Severe Thunderstorm Watch	SPC	Barry, Barton, Bates, Benton, Camden, Cass and 27 more	5 hr
Jul 16, 6:28 AM CDT	Mesoscale Discussion	SPC	Barry, Barton, Bates, Camden, Cedar, Christian and 18 more	92 min
Jul 15, 7:53 PM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Boyd, Buffalo, Butler, Cedar and 23 more	67 min

Nearby

Mesoscale Discussions in Missouri, 2004 Mesoscale Discussions in Iowa, 2004 Mesoscale Discussions in Kansas, 2004 Every mesoscale discussion in 2004

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.