Alert archive / Oklahoma / Mesoscale Discussions in 2006

Mesoscale Discussion 368

March 30, 200619 counties in Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2006, 5:10 PM CST for 19 counties in Oklahoma; 5 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 30, 2006, 5:10 PM CST (23:10 UTC)
Expired
Mar 30, 2006, 7:15 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 24 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, Love County, OK, Marshall County, OK, McIntosh County, OK, Murray County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Seminole County, OK, Cooke County, TX, Delta County, TX, Fannin County, TX, Grayson County, TX, Lamar County, TX

The radar

The Norman radar (KTLX), 152 km from the middle of the area, began a volume at 23:12 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, 11.2 hours before the alert went out and 149 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 2006-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1250 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, Norman, OK at 12:00Z on 2006-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 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
1250 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
1.2
Supercell composite
6.8

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
Mar 29, 11:16 PM CSTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Carter and 27 more119 min
Mar 30, 2:58 AM CSTMesoscale DiscussionSPCBeaver, Ellis, Harper, Woods, Woodward2 hr
Mar 30, 7:07 AM CSTMesoscale DiscussionSPCAdair, Cherokee, Craig, Creek, Delaware, Haskell and 18 more113 min
Mar 30, 8:42 AM CSTTornado WatchSPCAdair, Alfalfa, Cherokee, Craig, Creek, Delaware and 18 more9 hr
Mar 30, 9:42 AM CSTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Custer, Dewey and 8 more93 min
Mar 30, 11:08 AM CSTTornado WatchSPCAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 24 more7 hr
Mar 30, 12:33 PM CSTMesoscale DiscussionSPCAtoka, Canadian, Carter, Cleveland, Coal, Comanche and 17 more117 min
Mar 30, 2:46 PM CSTMesoscale DiscussionSPCAtoka, Canadian, Carter, Cleveland, Coal, Garvin and 15 more119 min
Mar 30, 3:12 PM CSTMesoscale DiscussionSPCKay, Nowata, Osage, Washington63 min
Mar 30, 5:39 PM CSTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 35 more6 hr
Mar 30, 1:36 PM CSTMesoscale DiscussionSPCArcher, Clay, Cooke, Denton, Jack, Montague and 8 more114 min

Nearby

Mesoscale Discussions in Oklahoma, 2006Mesoscale Discussions in Texas, 2006Every mesoscale discussion in 2006

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.