Alert archive / Oklahoma / Mesoscale Discussions in 2016

Mesoscale Discussion 349

April 10, 201630 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2016, 4:57 PM CDT for 30 counties in Oklahoma; 4 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 10, 2016, 4:57 PM CDT (21:57 UTC)
Expired
Apr 10, 2016, 7:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 34 counties

Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Roger Mills County, OK, Tillman County, OK, Tulsa County, OK, Washington County, OK, Washita County, OK, Baylor County, TX, Hardeman County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Norman radar (KTLX), 71 km from the middle of the area, began a volume at 21:58 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

Norman, OK (KOUN), launched 12:00Z, 10.0 hours before the alert went out and 62 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, Norman, OK at 12:00Z on 2016-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Norman, OK at 12:00Z on 2016-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 596 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
596 m²/s²
0-3 km storm-relative helicity
743 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Apr 10, 2:56 PM CDTMesoscale DiscussionSPCHarmon2 hr
Apr 10, 3:31 PM CDTSevere Thunderstorm WatchSPCBeckham, Greer, Harmon, Jackson6 hr
Apr 10, 5:13 PM CDTMesoscale DiscussionSPCCraig, Mayes, Nowata, Osage, Ottawa, Rogers and 2 more92 min
Apr 10, 5:13 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 27 more5 hr
Apr 10, 5:31 PM CDTSevere Thunderstorm WatchSPCCraig, Nowata, Osage, Ottawa, Pawnee, Washington6 hr
Apr 10, 6:57 PM CDTMesoscale DiscussionSPCGreer, Harmon, Jackson93 min
Apr 10, 5:08 PM CDTMesoscale DiscussionSPCDimmit, Edwards, Kinney, Maverick, Real, Terrell and 3 more67 min
Apr 10, 6:15 PM CDTSevere Thunderstorm WatchSPCBandera, Dimmit, Edwards, Frio, Kerr, Kinney and 8 more5 hr

Nearby

Mesoscale Discussions in Oklahoma, 2016Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016

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.