Alert archive / Arkansas / Mesoscale Discussions in 2006

Mesoscale Discussion 230

March 11, 200632 counties in Arkansas; 9 counties in Missouri; LeFlore County, McCurtain County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 11, 2006, 4:25 AM CST for 32 counties in Arkansas; 9 counties in Missouri; LeFlore County, McCurtain County, Oklahoma. It was in force for 65 min.

The area

The outline as issued.

The facts

Issued
Mar 11, 2006, 4:25 AM CST (10:25 UTC)
Expired
Mar 11, 2006, 5:30 AM CST
In force
65 min
Issued by
the Storm Prediction Center
All 43 counties

Baxter County, AR, Boone County, AR, Carroll County, AR, Clark County, AR, Cleburne County, AR, Conway County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Hot Spring County, AR, Howard County, AR, Izard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Yell County, AR, Carter County, MO, Christian County, MO, Douglas County, MO, Howell County, MO, Oregon County, MO, Ozark County, MO, Shannon County, MO, Taney County, MO, Wright County, MO, LeFlore County, OK, McCurtain County, OK

The radar

The Western Arkansas radar (KSRX), 74 km from the middle of the area, began a volume at 10:27 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, 10.4 hours before the alert went out and 188 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 2006-03-11Temperature 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 2006-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2360 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
305 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 10, 8:19 PM CSTSevere Thunderstorm WatchSPCBenton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more18 hr
Mar 10, 10:12 PM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Conway, Crawford and 17 more93 min
Mar 10, 10:59 PM CSTSevere Thunderstorm WatchSPCBaxter, Boone, Cleburne, Conway, Faulkner, Fulton and 20 more6 hr
Mar 11, 1:29 AM CSTMesoscale DiscussionSPCClay, Craighead, Greene, Lawrence, Mississippi, Randolph2 hr
Mar 11, 1:51 AM CSTSevere Thunderstorm WatchSPCClay, Craighead, Greene, Lawrence, Mississippi, Randolph6 hr
Mar 11, 5:53 AM CSTMesoscale DiscussionSPCBaxter, Clay, Craighead, Fulton, Greene, Independence and 6 more97 min
Mar 11, 9:36 AM CSTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Clark, Clay and 52 more54 min
Mar 11, 11:59 AM CSTMesoscale DiscussionSPCBenton, Carroll, Washington2 hr
Mar 11, 12:47 PM CSTTornado WatchSPCBenton, Boone, Carroll, Crawford, Franklin, Johnson and 8 more7 hr
Mar 11, 3:30 PM CSTMesoscale DiscussionSPCBenton, Boone, Carroll, Crawford, Franklin, Madison and 4 more90 min
Mar 11, 3:34 AM CSTMesoscale DiscussionSPCLincoln, Pike, Saint Charles, Saint Louis, City of Saint Louis86 min
Mar 11, 1:25 PM CSTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cooper, Howard, Lewis and 13 more95 min
Mar 11, 2:22 PM CSTTornado WatchSPCAudrain, Boone, Callaway, Clark, Cole, Crawford and 21 more8 hr
Mar 11, 3:52 PM CSTMesoscale DiscussionSPCAudrain, Boone, Callaway, Cole, Franklin, Gasconade and 14 more83 min
Mar 10, 6:52 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Haskell, Hughes and 16 more83 min

Nearby

Mesoscale Discussions in Arkansas, 2006Mesoscale Discussions in Missouri, 2006Mesoscale Discussions in Oklahoma, 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.