Alert archive / Missouri / Mesoscale Discussions in 2008

Mesoscale Discussion 452

March 18, 20085 states

The Storm Prediction Center issued this mesoscale discussion at Mar 18, 2008, 2:23 AM CDT for 5 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 18, 2008, 2:23 AM CDT (07:23 UTC)
Expired
Mar 18, 2008, 4:30 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 71 counties

Baxter County, AR, Benton County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Madison County, AR, Marion County, AR, Washington County, AR, Alexander County, IL, Clay County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Perry County, IL, Pulaski County, IL, Randolph County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Daviess County, IN, Dubois County, IN, Gibson County, IN, Greene County, IN, Knox County, IN, Martin County, IN, Orange County, IN, Pike County, IN, Posey County, IN, Sullivan County, IN, Vanderburgh County, IN, Barry County, MO, Bollinger County, MO, Cape Girardeau County, MO, Carter County, MO, Christian County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Iron County, MO, Lawrence County, MO, Madison County, MO, McDonald County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Washington County, MO, Wayne County, MO, Webster County, MO, Wright County, MO, Adair County, OK

The radar

The Springfield radar (KSGF), 165 km from the middle of the area, began a volume at 07:22 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

Springfield, MO (KSGF), launched 00:00Z, 7.4 hours before the alert went out and 203 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 00:00Z on 2008-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2008-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 442 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
931 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
442 m²/s²
0-3 km storm-relative helicity
503 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
Mar 17, 7:34 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 11 more56 min
Mar 17, 9:36 PM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 20 more114 min
Mar 17, 10:16 PM CDTTornado WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 31 more8 hr
Mar 18, 1:13 AM CDTMesoscale DiscussionSPCWashington62 min
Mar 18, 2:46 AM CDTMesoscale DiscussionSPCBaxter, Cleburne, Conway, Crawford, Faulkner, Franklin and 27 more89 min
Mar 18, 5:54 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Madison, Washington2 hr
Mar 18, 9:26 AM CDTMesoscale DiscussionSPCCalhoun, Clark, Columbia, Conway, Dallas, Garland and 19 more2 hr
Mar 18, 10:16 AM CDTTornado Watch PDSSPCArkansas, Clark, Clay, Cleburne, Cleveland, Columbia and 48 more7 hr
Mar 18, 10:59 AM CDTTornado Watch PDSSPCUnion8 hr
Mar 18, 11:54 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Crawford, Franklin and 6 more3 hr
Mar 18, 12:10 PM CDTMesoscale DiscussionSPCArkansas, Clark, Cleburne, Cleveland, Conway, Craighead and 47 more2 hr
Mar 18, 1:51 PM CDTMesoscale DiscussionSPCPolk, Sevier3 hr
Mar 18, 3:54 PM CDTMesoscale DiscussionSPCClark, Cleburne, Columbia, Dallas, Faulkner, Garland and 21 more2 hr
Mar 18, 4:46 PM CDTMesoscale DiscussionSPCArkansas, Clark, Clay, Craighead, Crittenden, Cross and 19 more59 min
Mar 18, 5:19 PM CDTTornado WatchSPCArkansas, Bradley, Calhoun, Clark, Clay, Cleburne and 43 more11 hr
Mar 18, 6:06 PM CDTMesoscale DiscussionSPCClark, Clay, Cleburne, Conway, Craighead, Cross and 20 more3 hr
Mar 18, 6:47 PM CDTTornado WatchSPCUnion9 hr
Mar 17, 7:09 PM CDTSevere Thunderstorm WatchSPCCaddo, Canadian, Carter, Cleveland, Coal, Comanche and 19 more7 hr
Mar 17, 10:21 PM CDTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Carter, Cleveland, Coal and 25 more54 min

Nearby

Mesoscale Discussions in Missouri, 2008Mesoscale Discussions in Illinois, 2008Mesoscale Discussions in Indiana, 2008Every 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.