Alert archive / Arkansas / Mesoscale Discussions in 2006

Mesoscale Discussion 376

March 31, 200624 counties in Arkansas; 13 counties in Missouri

The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2006, 1:13 AM CST for 24 counties in Arkansas; 13 counties in Missouri. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Mar 31, 2006, 1:13 AM CST (07:13 UTC)
Expired
Mar 31, 2006, 2:15 AM CST
In force
62 min
Issued by
the Storm Prediction Center
All 37 counties

Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Franklin County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Madison County, AR, Marion County, AR, Newton County, AR, Pope County, AR, Randolph County, AR, Searcy County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Butler County, MO, Carter County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Reynolds County, MO, Ripley County, MO, Shannon County, MO, Stoddard County, MO, Taney County, MO, Texas County, MO, Wayne County, MO

The radar

The Springfield radar (KSGF), 145 km from the middle of the area, began a volume at 07:15 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, 7.2 hours before the alert went out and 156 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 2006-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 366 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 00:00Z on 2006-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 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
366 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
535 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.8

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 30, 7:48 PM CSTMesoscale DiscussionSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more117 min
Mar 30, 9:42 PM CSTTornado WatchSPCBaxter, Boone, Fulton, Izard, Johnson, Logan and 6 more5 hr
Mar 30, 11:34 PM CSTMesoscale DiscussionSPCFranklin, Sebastian26 min
Mar 31, 1:58 PM CSTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Chicot, Clay, Cleburne and 32 more92 min
Mar 31, 4:53 PM CSTTornado WatchSPCCraighead, Crittenden, Cross, Lee, Mississippi, Phillips and 2 more5 hr
Mar 30, 7:57 PM CSTMesoscale DiscussionSPCAdair, Audrain, Boone, Callaway, Clark, Crawford and 28 more63 min
Mar 30, 8:17 PM CSTSevere Thunderstorm WatchSPCAdair, Audrain, Boone, Callaway, Cole, Crawford and 23 more6 hr
Mar 30, 8:29 PM CSTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Caldwell, Camden and 41 more91 min
Mar 31, 12:58 AM CSTMesoscale DiscussionSPCJefferson, Perry, Sainte Genevieve, Saint Francois, Saint Louis, Washington and 1 more92 min
Mar 31, 2:43 PM CSTTornado WatchSPCBollinger, Butler, Cape Girardeau, Madison, Mississippi, New Madrid and 6 more6 hr

Nearby

Mesoscale Discussions in Arkansas, 2006Mesoscale Discussions in Missouri, 2006Every mesoscale discussion in 2006

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.