Alert archive / Missouri / Mesoscale Discussions in 2008

Mesoscale Discussion 515

March 31, 20084 states

The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2008, 5:59 AM CDT for 4 states. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Mar 31, 2008, 5:59 AM CDT (10:59 UTC)
Expired: Mar 31, 2008, 7:30 AM CDT
In force: 91 min
Issued by: the Storm Prediction Center

All 41 counties

Adams County, IA, Appanoose County, IA, Clarke County, IA, Decatur County, IA, Fremont County, IA, Montgomery County, IA, Page County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Wayne County, IA, Atchison County, KS, Brown County, KS, Doniphan County, KS, Nemaha County, KS, Andrew County, MO, Atchison County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Linn County, MO, Livingston County, MO, Mercer County, MO, Nodaway County, MO, Putnam County, MO, Ray County, MO, Sullivan County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE

The radar

The Pleasant Hill radar (KEAX), 156 km from the middle of the area, began a volume at 11:00 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, 11.0 hours before the alert went out and 146 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 542 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 436 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.

Issued	Product	Office	Counties	Lasted
Mar 31, 2:30 AM CDT	Mesoscale Discussion	SPC	Lyon	5 hr
Mar 31, 3:06 AM CDT	Severe Thunderstorm Watch	SPC	Fremont, Mills, Montgomery, Page, Pottawattamie	3 hr
Mar 31, 3:31 AM CDT	Mesoscale Discussion	SPC	Adams, Clarke, Decatur, Ringgold, Taylor, Union and 1 more	59 min
Mar 31, 9:48 AM CDT	Mesoscale Discussion	SPC	Lyon, Osceola	6 hr
Mar 31, 1:09 PM CDT	Mesoscale Discussion	SPC	Appanoose, Davis, Decatur, Des Moines, Henry, Jefferson and 5 more	2 hr
Mar 30, 8:50 PM CDT	Mesoscale Discussion	SPC	Butler, Cowley, Harper, Sedgwick, Sumner	55 min
Mar 30, 9:51 PM CDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Brown, Butler, Chase, Chautauqua and 37 more	7 hr
Mar 30, 11:20 PM CDT	Mesoscale Discussion	SPC	Barber, Barton, Brown, Butler, Chase, Chautauqua and 37 more	55 min
Mar 31, 1:45 AM CDT	Mesoscale Discussion	SPC	Barber, Barton, Butler, Chase, Clay, Cloud and 32 more	2 hr
Mar 31, 4:09 AM CDT	Severe Thunderstorm Watch	SPC	Atchison, Doniphan	3 hr
Mar 31, 4:29 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 45 more	91 min
Mar 31, 5:05 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Butler, Chase, Chautauqua, Cowley, Elk and 10 more	7 hr
Mar 31, 6:17 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Butler, Chase, Chautauqua, Cherokee and 15 more	88 min
Mar 31, 7:50 AM CDT	Mesoscale Discussion	SPC	Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 7 more	85 min
Mar 31, 8:44 AM CDT	Tornado Watch	SPC	Bourbon, Chautauqua, Cherokee, Cowley, Crawford, Elk and 4 more	7 hr
Mar 31, 10:30 AM CDT	Mesoscale Discussion	SPC	Allen, Anderson, Bourbon, Chautauqua, Cherokee, Cowley and 8 more	60 min
Mar 31, 1:10 PM CDT	Mesoscale Discussion	SPC	Crawford, Dent, Franklin, Gasconade, Iron, Jefferson and 16 more	35 min
Mar 31, 1:45 PM CDT	Tornado Watch	SPC	Audrain, Boone, Callaway, Cole, Crawford, Franklin and 17 more	6 hr
Mar 31, 3:04 PM CDT	Mesoscale Discussion	SPC	Barry, Christian, Dent, Douglas, Greene, Howell and 11 more	26 min
Mar 31, 3:45 PM CDT	Tornado Watch	SPC	Barry, Christian, Dent, Douglas, Howell, Laclede and 10 more	7 hr
Mar 31, 5:28 PM CDT	Mesoscale Discussion	SPC	Butler, Dunklin, Ripley, Wayne	62 min
Mar 31, 6:12 PM CDT	Tornado Watch	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dunklin, New Madrid and 6 more	7 hr

Nearby

Mesoscale Discussions in Missouri, 2008 Mesoscale Discussions in Iowa, 2008 Mesoscale Discussions in Nebraska, 2008 Every mesoscale discussion in 2008

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.