Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 1003

May 25, 200513 counties in Oklahoma; 14 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 25, 2005, 7:51 AM CDT for 13 counties in Oklahoma; 14 counties in Texas. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
May 25, 2005, 7:51 AM CDT (12:51 UTC)
Expired
May 25, 2005, 9:15 AM CDT
In force
84 min
Issued by
the Storm Prediction Center
All 27 counties

Beckham County, OK, Caddo County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kiowa County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Childress County, TX, Clay County, TX, Collingsworth County, TX, Foard County, TX, Hardeman County, TX, Jack County, TX, Knox County, TX, Montague County, TX, Wheeler County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 33 km from the middle of the area, began a volume at 12:53 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

Fort Sill, OK (KFSI), launched 12:00Z, 0.9 hours before the alert went out and 91 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, Fort Sill, OK at 12:00Z on 2005-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 709 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Sill, OK at 12:00Z on 2005-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
709 J/kg
Mixed-layer CIN
-272 J/kg
Mixed-layer LCL
1100 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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, 7:17 PM CDTMesoscale DiscussionSPCHaskell, Latimer, LeFlore, McCurtain, Pittsburg, Pushmataha118 min
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, 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 Texas, 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.