Alert archive / Missouri / Mesoscale Discussions in 2007

Mesoscale Discussion 584

April 25, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2007, 12:30 PM CDT for 4 states. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued
Apr 25, 2007, 12:30 PM CDT (17:30 UTC)
Expired
Apr 25, 2007, 1:30 PM CDT
In force
60 min
Issued by
the Storm Prediction Center
All 40 counties

Benton County, AR, Carroll County, AR, Washington County, AR, Allen County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Woodson County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Ottawa County, OK, Rogers County, OK, Washington County, OK

The radar

The Springfield radar (KSGF), 129 km from the middle of the area, began a volume at 17:34 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

Springfield, MO (KSGF), launched 12:00Z, 5.5 hours before the alert went out and 103 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, Springfield, MO at 12:00Z on 2007-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Springfield, MO at 12:00Z on 2007-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 square meters per square second.1939587897Sfc1 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
7 J/kg
Mixed-layer CIN
-301 J/kg
Mixed-layer LCL
1406 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
222 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.

IssuedProductOfficeCountiesLasted
Apr 24, 7:33 PM CDTMesoscale DiscussionSPCBenton, Carroll, Clark, Crawford, Franklin, Hempstead and 15 more117 min
Apr 24, 9:10 PM CDTTornado WatchSPCBaxter, Boone, Clark, Cleburne, Conway, Dallas and 26 more4 hr
Apr 24, 10:05 PM CDTMesoscale DiscussionSPCClay, Craighead, Crittenden, Cross, Greene, Jackson and 4 more85 min
Apr 24, 10:07 PM CDTMesoscale DiscussionSPCLittle River, Miller, Sevier83 min
Apr 24, 10:35 PM CDTTornado WatchSPCHempstead, Howard, Lafayette, Little River, Miller, Nevada and 1 more5 hr
Apr 24, 10:53 PM CDTSevere Thunderstorm WatchSPCClay, Craighead, Greene, Lawrence, Mississippi, Poinsett and 1 more3 hr
Apr 24, 11:58 PM CDTMesoscale DiscussionSPCClark, Dallas, Garland, Grant, Hempstead, Hot Spring and 15 more92 min
Apr 25, 12:45 AM CDTMesoscale DiscussionSPCClay, Craighead, Greene, Lawrence, Mississippi, Poinsett and 2 more90 min
Apr 25, 2:10 AM CDTMesoscale DiscussionSPCColumbia, Union65 min
Apr 25, 1:11 PM CDTSevere Thunderstorm WatchSPCBenton, Carroll8 hr
Apr 25, 2:46 PM CDTMesoscale DiscussionSPCBaxter, Boone, Conway, Crawford, Franklin, Johnson and 12 more59 min
Apr 25, 3:38 PM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 25 more6 hr
Apr 25, 6:15 PM CDTMesoscale DiscussionSPCClark, Columbia, Lafayette, Nevada, Ouachita90 min
Apr 25, 6:38 PM CDTMesoscale DiscussionSPCBaxter, Boone, Cleburne, Conway, Faulkner, Fulton and 17 more97 min
Apr 24, 7:53 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford97 min
Apr 25, 5:55 AM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Chautauqua, Cowley and 20 more2 hr
Apr 25, 9:33 AM CDTMesoscale DiscussionSPCAllen, Chautauqua, Elk, Labette, Montgomery, Neosho and 2 more87 min

Nearby

Mesoscale Discussions in Missouri, 2007Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Oklahoma, 2007Every mesoscale discussion in 2007

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.