Alert archive / Texas / Mesoscale Discussions in 2019

Mesoscale Discussion 823

May 26, 20194 states

The Storm Prediction Center issued this mesoscale discussion at May 26, 2019, 6:56 PM CDT for 4 states. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued
May 26, 2019, 6:56 PM CDT (23:56 UTC)
Expired
May 26, 2019, 8:00 PM CDT
In force
64 min
Issued by
the Storm Prediction Center
All 25 counties

Morton County, KS, Seward County, KS, Stevens County, KS, Curry County, NM, Roosevelt County, NM, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Carson County, TX, Castro County, TX, Dallam County, TX, Deaf Smith County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lamb County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX

The radar

The Amarillo radar (KAMA), 51 km from the middle of the area, began a volume at 23:56 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.9 hours before the alert went out and 52 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, Amarillo Airport, TX at 12:00Z on 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1256 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, Amarillo Airport, TX at 12:00Z on 2019-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.19395878Sfc1 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
1256 J/kg
Mixed-layer CIN
-219 J/kg
Mixed-layer LCL
944 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 25, 8:21 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Chase, Chautauqua, Coffey and 22 more54 min
May 25, 8:47 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 27 more6 hr
May 26, 12:19 PM CDTMesoscale DiscussionSPCCheyenne, Finney, Gove, Grant, Gray, Greeley and 17 more116 min
May 26, 1:27 PM CDTTornado WatchSPCCheyenne, Decatur, Finney, Gove, Graham, Grant and 18 more9 hr
May 26, 3:43 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Finney, Gove, Graham, Grant and 21 more92 min
May 26, 5:27 PM CDTMesoscale DiscussionSPCBarton, Cloud, Edwards, Ellis, Ellsworth, Graham and 19 more63 min
May 26, 5:42 PM CDTSevere Thunderstorm WatchSPCBarton, Edwards, Ellis, Ellsworth, Ford, Gray and 16 more6 hr
May 26, 6:04 PM CDTMesoscale DiscussionSPCGrant, Greeley, Hamilton, Kearny, Morton, Stanton and 2 more86 min
May 26, 1:30 PM CDTMesoscale DiscussionSPCEddy, Lea2 hr
May 26, 2:32 PM CDTTornado WatchSPCGuadalupe, Harding, Quay, San Miguel, Union7 hr
May 26, 3:41 PM CDTSevere Thunderstorm WatchSPCChaves, Curry, De Baca, Eddy, Lea, Roosevelt6 hr
May 26, 6:51 PM CDTMesoscale DiscussionSPCCurry, Lea, Roosevelt114 min
May 25, 8:55 PM CDTMesoscale DiscussionSPCBeckham, Custer, Greer, Harmon, Jackson, Kiowa and 1 more95 min
May 25, 11:00 PM CDTMesoscale DiscussionSPCCreek, Lincoln, Okfuskee, Oklahoma60 min
May 26, 1:39 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Ottawa, Sequoyah2 hr
May 25, 8:29 PM CDTMesoscale DiscussionSPCCrockett, Reagan, Upton91 min

Nearby

Mesoscale Discussions in Texas, 2019Mesoscale Discussions in Kansas, 2019Mesoscale Discussions in New Mexico, 2019Every mesoscale discussion in 2019

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.