Alert archive / Oklahoma / Mesoscale Discussions in 2007

Mesoscale Discussion 374

March 29, 200732 counties in Oklahoma; 29 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 29, 2007, 10:01 PM CDT for 32 counties in Oklahoma; 29 counties in Texas. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued
Mar 29, 2007, 10:01 PM CDT (03:01 UTC)
Expired
Mar 30, 2007, 12:00 AM CDT
In force
119 min
Issued by
the Storm Prediction Center
All 61 counties

Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, Love County, OK, Marshall County, OK, Mayes County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Anderson County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Limestone County, TX, McLennan County, TX, Navarro County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 123 km from the middle of the area, began a volume at 03:03 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

Fort Worth, TX (KFWD), launched 00:00Z, 3.0 hours before the alert went out and 102 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, Fort Worth, TX at 00:00Z on 2007-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 378 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, Fort Worth, TX at 00:00Z on 2007-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
378 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
763 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

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 30, 11:25 AM CDTMesoscale DiscussionSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 46 more65 min
Mar 30, 1:31 PM CDTTornado WatchSPCAtoka, Bryan, Caddo, Canadian, Carter, Choctaw and 33 more6 hr
Mar 30, 3:31 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Cleveland, Coal, Garvin and 19 more89 min
Mar 30, 6:53 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 23 more97 min
Mar 29, 7:32 PM CDTMesoscale DiscussionSPCAnderson, Camp, Cherokee, Franklin, Freestone, Gregg and 9 more88 min
Mar 30, 4:44 AM CDTMesoscale DiscussionSPCAndrews, Bandera, Crane, Crockett, Dimmit, Ector and 20 more2 hr
Mar 30, 6:11 AM CDTSevere Thunderstorm WatchSPCAndrews, Borden, Brown, Callahan, Coke, Coleman and 40 more6 hr
Mar 30, 9:31 AM CDTMesoscale DiscussionSPCBandera, Bell, Bexar, Blanco, Bosque, Brown and 55 more59 min
Mar 30, 9:51 AM CDTTornado WatchSPCArcher, Bell, Blanco, Bosque, Brown, Burnet and 48 more8 hr
Mar 30, 11:47 AM CDTTornado WatchSPCCoke, Crockett, Edwards, Fisher, Irion, Jones and 12 more6 hr
Mar 30, 12:00 PM CDTMesoscale DiscussionSPCBrown, Callahan, Coleman, Comanche, Concho, Eastland and 20 more2 hr
Mar 30, 2:58 PM CDTMesoscale DiscussionSPCCoryell, McLennan92 min
Mar 30, 4:51 PM CDTMesoscale DiscussionSPCBandera, Bastrop, Bell, Blanco, Bosque, Brown and 67 more54 min
Mar 30, 5:25 PM CDTTornado WatchSPCAnderson, Bandera, Bell, Bexar, Blanco, Bosque and 65 more8 hr

Nearby

Mesoscale Discussions in Oklahoma, 2007Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007

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.