Alert archive / Arkansas / Mesoscale Discussions in 2005

Mesoscale Discussion 962

May 22, 20054 states

The Storm Prediction Center issued this mesoscale discussion at May 22, 2005, 9:33 PM CDT for 4 states. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
May 22, 2005, 9:33 PM CDT (02:33 UTC)
Expired
May 22, 2005, 11:30 PM CDT
In force
117 min
Issued by
the Storm Prediction Center
All 45 counties

Benton County, AR, Boone County, AR, Carroll County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Faulkner County, AR, Franklin County, AR, Johnson County, AR, Madison County, AR, Newton County, AR, Perry County, AR, Pope County, AR, Searcy County, AR, Van Buren County, AR, Washington County, AR, Allen County, KS, Butler County, KS, Chautauqua County, KS, Cherokee County, KS, Cowley 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, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Stone County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Delaware County, OK, Mayes County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Rogers County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 72 km from the middle of the area, began a volume at 02:33 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 00:00Z, 2.6 hours before the alert went out and 161 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 2005-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2529 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 2005-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
2529 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
938 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

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
May 22, 10:20 PM CDTSevere Thunderstorm WatchSPCBenton, Boone, Carroll, Conway, Crawford, Franklin and 8 more6 hr
May 22, 11:35 PM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Conway, Crawford, Franklin and 8 more115 min
May 23, 2:31 AM CDTMesoscale DiscussionSPCBenton, Boone, Carroll, Conway, Crawford, Faulkner and 9 more59 min
May 23, 3:25 AM CDTSevere Thunderstorm WatchSPCArkansas, Benton, Cleburne, Cleveland, Conway, Crawford and 28 more8 hr
May 23, 6:48 AM CDTMesoscale DiscussionSPCArkansas, Benton, Carroll, Cleburne, Cleveland, Conway and 30 more87 min
May 23, 12:53 PM CDTMesoscale DiscussionSPCHempstead, Howard, Lafayette, Little River, Miller, Pike and 3 more97 min
May 23, 2:08 PM CDTMesoscale DiscussionSPCCheyenne, Sherman, Wallace67 min
May 23, 3:20 PM CDTTornado WatchSPCCheyenne, Sherman, Wallace8 hr
May 23, 4:36 PM CDTMesoscale DiscussionSPCChautauqua, Cherokee, Labette, Montgomery84 min
May 23, 5:33 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Ellis, Finney, Ford, Gove and 28 more87 min
May 23, 6:05 PM CDTSevere Thunderstorm WatchSPCDecatur, Finney, Gove, Graham, Grant, Gray and 17 more5 hr
May 23, 5:10 AM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Grady, Lincoln, McClain and 3 more65 min
May 23, 4:39 PM CDTMesoscale DiscussionSPCCimarron96 min
May 23, 5:00 PM CDTSevere Thunderstorm WatchSPCCimarron, Texas6 hr

Nearby

Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Kansas, 2005Mesoscale Discussions in Oklahoma, 2005Every mesoscale discussion in 2005

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.