Alert archive / Oklahoma / Mesoscale Discussions in 2012

Mesoscale Discussion 1025

June 3, 201210 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2012, 1:23 AM CDT for 10 counties in Oklahoma. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: Jun 3, 2012, 1:23 AM CDT (06:23 UTC)
Expired: Jun 3, 2012, 2:30 AM CDT
In force: 67 min
Issued by: the Storm Prediction Center

Counties Blaine County, OK, Caddo County, OK, Canadian County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Logan County, OK, Noble County, OK, Oklahoma County, OK

The radar

The Norman radar (KTLX), 90 km from the middle of the area, began a volume at 06:24 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

Norman, OK (KOUN), launched 00:00Z, 6.4 hours before the alert went out and 90 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1523 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 1429 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

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.

Issued	Product	Office	Counties	Lasted
Jun 2, 8:12 PM CDT	Mesoscale Discussion	SPC	Beaver, Ellis, Harper, Roger Mills, Texas	2 hr
Jun 2, 10:59 PM CDT	Severe Thunderstorm Watch	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Custer and 11 more	4 hr
Jun 3, 2:57 AM CDT	Mesoscale Discussion	SPC	Cleveland, Creek, Lincoln, McClain, Pawnee, Payne and 1 more	33 min
Jun 3, 2:27 PM CDT	Mesoscale Discussion	SPC	Adair, Cherokee	2 hr
Jun 3, 3:25 PM CDT	Mesoscale Discussion	SPC	Beaver, Ellis, Harper, Roger Mills	95 min
Jun 3, 3:28 PM CDT	Tornado Watch	SPC	Adair, Cherokee, Delaware, Ottawa, Sequoyah	6 hr
Jun 3, 6:40 PM CDT	Tornado Watch	SPC	Alfalfa, Beaver, Blaine, Canadian, Creek, Custer and 19 more	3 hr

Nearby

Mesoscale Discussions in Oklahoma, 2012 Every mesoscale discussion in 2012

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.