Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 162

February 21, 2022Bryan County, Love County, Marshall County, Oklahoma; 18 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 21, 2022, 10:36 PM CST for Bryan County, Love County, Marshall County, Oklahoma; 18 counties in Texas. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
Feb 21, 2022, 10:36 PM CST (04:36 UTC)
Expired
Feb 22, 2022, 12:30 AM CST
In force
114 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 23
All 21 counties

Bryan County, OK, Love County, OK, Marshall County, OK, Callahan County, TX, Coleman County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Denton County, TX, Eastland County, TX, Erath County, TX, Fannin County, TX, Grayson County, TX, Hood County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 80 km from the middle of the area, began a volume at 04:40 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, 4.6 hours before the alert went out and 65 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 2022-02-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 992 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 2022-02-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939587897117Sfc1 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
992 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.8

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
Feb 21, 6:41 PM CSTMesoscale DiscussionSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 18 more3 hr
Feb 21, 7:22 PM CSTSevere Thunderstorm WatchSPCAtoka, Bryan, Carter, Coal, Cotton, Garvin and 9 more7 hr
Feb 21, 8:49 PM CSTTornado WatchSPCAdair, Cherokee, Choctaw, Haskell, Latimer, LeFlore and 6 more7 hr
Feb 21, 11:37 PM CSTMesoscale DiscussionSPCChoctaw, LeFlore, McCurtain, Pushmataha113 min
Feb 22, 1:36 AM CSTMesoscale DiscussionSPCLeFlore, McCurtain84 min
Feb 22, 12:55 AM CSTMesoscale DiscussionSPCCallahan, Denton, Eastland, Fannin, Grayson, Palo Pinto and 2 more65 min

Nearby

Mesoscale Discussions in Texas, 2022Mesoscale Discussions in Oklahoma, 2022Every mesoscale discussion in 2022

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.