Alert archive / Arkansas / Mesoscale Discussions in 2005

Mesoscale Discussion 995

May 24, 200526 counties in Arkansas; 6 counties in Oklahoma; Bowie County, Cass County, Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2005, 7:17 PM CDT for 26 counties in Arkansas; 6 counties in Oklahoma; Bowie County, Cass County, Texas. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued
May 24, 2005, 7:17 PM CDT (00:17 UTC)
Expired
May 24, 2005, 9:15 PM CDT
In force
118 min
Issued by
the Storm Prediction Center
All 34 counties

Bradley County, AR, Calhoun County, AR, Clark County, AR, Columbia County, AR, Dallas County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Logan County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, Sevier County, AR, Union County, AR, Yell County, AR, Haskell County, OK, Latimer County, OK, LeFlore County, OK, McCurtain County, OK, Pittsburg County, OK, Pushmataha County, OK, Bowie County, TX, Cass County, TX

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 0.3 hours before the alert went out and 232 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, Shreveport, LA at 00:00Z on 2005-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1380 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, Shreveport, LA at 00:00Z on 2005-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
1380 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1629 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
100 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
May 24, 8:44 PM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Clark, Cleveland, Columbia and 15 more2 hr
May 24, 10:28 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Cimarron, Ellis, Harper, Texas and 2 more2 hr
May 24, 11:05 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Blaine, Dewey, Ellis, Harper and 5 more6 hr
May 25, 12:42 AM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Blaine, Dewey, Ellis, Harper and 5 more93 min
May 25, 3:39 AM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Blaine, Dewey, Ellis, Harper and 5 more66 min
May 25, 7:51 AM CDTMesoscale DiscussionSPCBeckham, Caddo, Comanche, Cotton, Custer, Greer and 7 more84 min
May 25, 9:20 AM CDTSevere Thunderstorm WatchSPCCarter, Cotton, Jefferson, Love, Marshall, Tillman7 hr
May 25, 12:14 PM CDTMesoscale DiscussionSPCCarter, Jefferson, Love, Marshall91 min
May 25, 1:59 PM CDTMesoscale DiscussionSPCBell, Bosque, Brown, Burnet, Callahan, Coke and 23 more91 min
May 25, 2:45 PM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Camp, Cherokee, Ellis, Franklin and 18 more5 hr
May 25, 3:45 PM CDTSevere Thunderstorm WatchSPCAndrews, Bell, Borden, Bosque, Brown, Callahan and 38 more7 hr
May 25, 4:56 PM CDTMesoscale DiscussionSPCAngelina, Cherokee, Grimes, Houston, Leon, Madison and 8 more94 min

Nearby

Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Oklahoma, 2005Mesoscale Discussions in Texas, 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.