Alert archive / Oklahoma / Mesoscale Discussions in 2020

Mesoscale Discussion 552

May 7, 20204 counties in Oklahoma; Lipscomb County, Texas

The Storm Prediction Center issued this mesoscale discussion at May 7, 2020, 9:24 PM CDT for 4 counties in Oklahoma; Lipscomb County, Texas. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
May 7, 2020, 9:24 PM CDT (02:24 UTC)
Expired
May 7, 2020, 11:00 PM CDT
In force
96 min
Issued by
the Storm Prediction Center

Counties Beaver County, OK, Ellis County, OK, Harper County, OK, Woodward County, OK, Lipscomb County, TX

The radar

The Dodge City radar (KDDC), 131 km from the middle of the area, began a volume at 02:26 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

Dodge City, (KDDC), launched 00:00Z, 2.4 hours before the alert went out and 131 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, Dodge City, at 00:00Z on 2020-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 618 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, Dodge City, at 00:00Z on 2020-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 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
618 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
1727 m above ground
0-6 km bulk shear
78 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
332 m²/s²
Significant tornado parameter
0.3
Supercell composite
7.4

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 7, 7:40 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Blaine, Caddo, Canadian, Cleveland and 21 more7 hr
May 7, 11:12 PM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Cleveland, Coal and 36 more2 hr
May 7, 11:25 PM CDTSevere Thunderstorm WatchSPCAtoka, Beckham, Bryan, Carter, Choctaw, Coal and 24 more5 hr
May 8, 1:22 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 18 more113 min
May 8, 2:30 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Cotton and 10 more2 hr
May 8, 3:06 AM CDTSevere Thunderstorm WatchSPCMcCurtain7 hr
May 7, 8:05 PM CDTMesoscale DiscussionSPCArcher, Jack, Palo Pinto, Young85 min
May 7, 8:27 PM CDTSevere Thunderstorm WatchSPCEllis, Jack, Johnson, Palo Pinto, Parker, Tarrant and 2 more4 hr
May 7, 9:53 PM CDTMesoscale DiscussionSPCJack, Johnson, Parker, Tarrant, Wise67 min
May 8, 5:22 AM CDTMesoscale DiscussionSPCCamp, Gregg, Harrison, Marion, Panola, Shelby and 1 more83 min
May 8, 9:30 AM CDTMesoscale DiscussionSPCAngelina, Jasper, Nacogdoches, Newton, Sabine, San Augustine and 1 more2 hr
May 8, 1:36 PM CDTSevere Thunderstorm WatchSPCNewton, Orange6 hr

Nearby

Mesoscale Discussions in Oklahoma, 2020Mesoscale Discussions in Texas, 2020Every mesoscale discussion in 2020

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.