Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Fort Worth, TX

February 28, 2021Hopkins County, Texas

NWS Fort Worth, TX issued this special weather statement at Feb 28, 2021, 4:34 PM CST for Hopkins County, Texas. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Feb 28, 2021, 4:34 PM CST (22:34 UTC)
Expired: Feb 28, 2021, 5:00 PM CST
In force: 26 min
Issued by: NWS Fort Worth, TX

County Hopkins County, TX

The radar

The Shreveport radar (KSHV), 172 km from the middle of the area, began a volume at 22:33 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

Shreveport, LA (KSHV), launched 12:00Z, 10.6 hours before the alert went out and 178 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: 458 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 321 m²/s²
0-3 km storm-relative helicity: 414 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 28, 9:11 AM CST	Special Weather Statement	FWD	Cooke	34 min
Feb 28, 9:28 AM CST	Special Weather Statement	FWD	Grayson	47 min
Feb 28, 9:51 AM CST	Severe Thunderstorm Warning	FWD	Grayson	30 min
Feb 28, 11:06 AM CST	Special Weather Statement	FWD	Denton	24 min
Feb 28, 11:18 AM CST	Severe Thunderstorm Warning	FWD	Collin, Cooke, Denton, Grayson	57 min

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement in 2021

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.