Alert archive / Texas / Special Weather Statements in 2023

Special Weather Statement, NWS Houston/Galveston, TX

January 2, 2023Walker County, Texas

NWS Houston/Galveston, TX issued this special weather statement at Jan 2, 2023, 1:08 PM CST for Walker County, Texas. It was in force for 37 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: Jan 2, 2023, 1:08 PM CST (19:08 UTC)
Expired: Jan 2, 2023, 1:45 PM CST
In force: 37 min
Issued by: NWS Houston/Galveston, TX
Hail: 0.00 in
Wind: 30

County Walker County, TX

The radar

The Houston radar (KHGX), 167 km from the middle of the area, began a volume at 19:13 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.1 hours before the alert went out and 243 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: 1630 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 548 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 1, 7:50 PM CST	Dense Fog Advisory	HGX	Chambers, Galveston, Harris	14 hr
Jan 2, 12:09 PM CST	Special Weather Statement	HGX	Walker	36 min
Jan 2, 1:55 PM CST	Special Weather Statement	HGX	Montgomery	35 min
Jan 2, 2:37 PM CST	Special Weather Statement	HGX	Montgomery	23 min
Jan 2, 2:51 PM CST	Special Weather Statement	HGX	San Jacinto	39 min
Jan 2, 3:16 PM CST	Special Weather Statement	HGX	San Jacinto	44 min
Jan 2, 5:27 PM CST	Special Weather Statement	HGX	Trinity	48 min

Nearby

Special Weather Statements in Texas, 2023 Every special weather statement 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.