Alert archive / Texas / Mesoscale Discussions in 2023

Mesoscale Discussion 293

March 16, 202311 counties in Oklahoma; 20 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 16, 2023, 3:03 PM CDT for 11 counties in Oklahoma; 20 counties in Texas. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Mar 16, 2023, 3:03 PM CDT (20:03 UTC)
Expired
Mar 16, 2023, 5:00 PM CDT
In force
117 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 68
All 31 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Coal County, OK, Garvin County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Archer County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Fannin County, TX, Grayson County, TX, Hood County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rockwall County, TX, Tarrant County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 87 km from the middle of the area, began a volume at 20:03 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 12:00Z, 8.1 hours before the alert went out and 60 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 12:00Z on 2023-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2023-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 317 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
317 m²/s²
0-3 km storm-relative helicity
429 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Mar 16, 10:27 AM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Creek, Grady and 7 more2 hr
Mar 16, 12:52 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Comanche and 13 more53 min
Mar 16, 1:33 PM CDTTornado WatchSPCAtoka, Bryan, Carter, Choctaw, Coal, Cotton and 12 more6 hr
Mar 16, 5:38 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Latimer, LeFlore and 4 more97 min
Mar 16, 6:17 PM CDTTornado WatchSPCMcCurtain7 hr
Mar 16, 2:18 PM CDTMesoscale DiscussionSPCAnderson, Austin, Brazos, Burleson, Falls, Fayette and 13 more117 min
Mar 16, 3:43 PM CDTMesoscale DiscussionSPCDallas, Kaufman, Parker, Rockwall, Tarrant92 min
Mar 16, 4:25 PM CDTMesoscale DiscussionSPCBell, Bosque, Coryell, Falls, Hamilton, Hill and 3 more65 min

Nearby

Mesoscale Discussions in Texas, 2023Mesoscale Discussions in Oklahoma, 2023Every mesoscale discussion in 2023

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.