Alert archive / Missouri / Mesoscale Discussions in 2010

Mesoscale Discussion 367

April 24, 2010Decatur County, Union County, Iowa; 7 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2010, 3:15 AM CDT for Decatur County, Union County, Iowa; 7 counties in Missouri. It was in force for 30 min.

The area

The outline as issued.

The facts

Issued
Apr 24, 2010, 3:15 AM CDT (08:15 UTC)
Expired
Apr 24, 2010, 3:45 AM CDT
In force
30 min
Issued by
the Storm Prediction Center

Counties Decatur County, IA, Union County, IA, Caldwell County, MO, Carroll County, MO, Daviess County, MO, Grundy County, MO, Livingston County, MO, Mercer County, MO, Ray County, MO

The radar

The Des Moines radar (KDMX), 134 km from the middle of the area, began a volume at 08:16 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

Omaha, NE (KOAX), launched 00:00Z, 8.3 hours before the alert went out and 228 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 2010-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1792 joules per kilogram.LCLEL10008507005003002001001 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 2010-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1792 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
927 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.9

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
Apr 23, 7:02 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Pottawattamie88 min
Apr 23, 7:28 PM CDTTornado WatchSPCFremont, Harrison, Mills, Monona, Montgomery, Page and 3 more5 hr
Apr 23, 9:22 PM CDTMesoscale DiscussionSPCFremont, Harrison, Mills, Monona, Pottawattamie53 min
Apr 23, 10:58 PM CDTTornado WatchSPCAdair, Adams, Audubon, Carroll, Cass, Crawford and 13 more5 hr
Apr 24, 1:29 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Buena Vista, Calhoun, Carroll and 30 more91 min
Apr 23, 7:06 PM CDTTornado WatchSPCAdair, Audrain, Boone, Callaway, Chariton, Howard and 17 more5 hr
Apr 23, 10:03 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Bates, Buchanan, Caldwell, Cass and 12 more27 min
Apr 23, 11:40 PM CDTMesoscale DiscussionSPCDunklin, Pemiscot65 min
Apr 24, 2:44 AM CDTMesoscale DiscussionSPCDunklin, Pemiscot91 min
Apr 24, 6:00 AM CDTTornado Watch PDSSPCDunklin, Pemiscot6 hr
Apr 24, 7:35 AM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Mississippi, Perry, Scott, Stoddard55 min
Apr 24, 9:31 AM CDTMesoscale DiscussionSPCDunklin, Pemiscot59 min
Apr 24, 11:08 AM CDTMesoscale DiscussionSPCBollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 26 more67 min
Apr 24, 11:31 AM CDTTornado Watch PDSSPCBollinger, Butler, Cape Girardeau, Carter, Crawford, Dent and 20 more8 hr
Apr 24, 1:52 PM CDTMesoscale DiscussionSPCCamden, Christian, Crawford, Dallas, Dent, Douglas and 14 more53 min
Apr 24, 2:01 PM CDTMesoscale DiscussionSPCButler, Dunklin, Mississippi, New Madrid, Pemiscot, Scott and 1 more89 min
Apr 24, 2:52 PM CDTMesoscale DiscussionSPCCrawford, Franklin, Gasconade, Iron, Jefferson, Saint Charles and 6 more53 min
Apr 24, 3:20 PM CDTTornado WatchSPCFranklin, Gasconade, Jefferson, Lewis, Lincoln, Marion and 7 more7 hr
Apr 24, 5:14 PM CDTMesoscale DiscussionSPCFranklin, Gasconade, Jefferson, Lincoln, Montgomery, Pike and 5 more61 min
Apr 24, 5:48 PM CDTMesoscale DiscussionSPCBollinger, Cape Girardeau, Crawford, Dent, Iron, Madison and 9 more57 min

Nearby

Mesoscale Discussions in Missouri, 2010Mesoscale Discussions in Iowa, 2010Every mesoscale discussion in 2010

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.