Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 17, NWS Houston/Galveston, TX

June 3, 2021Brazoria County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Jun 3, 2021, 8:21 PM CDT for Brazoria County, Texas. It was in force for 24 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: Jun 3, 2021, 8:21 PM CDT (01:21 UTC)
Expired: Jun 3, 2021, 8:45 PM CDT
In force: 24 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Brazoria County, TX

The radar

The Houston radar (KHGX), 54 km from the middle of the area, began a volume at 01:22 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

Corpus Christi, TX (KCRP), launched 00:00Z, 1.4 hours before the alert went out and 242 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: 28 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 564 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -32 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

572 
WFUS54 KHGX 040121
TORHGX
TXC039-040145-
/O.NEW.KHGX.TO.W.0017.210604T0121Z-210604T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
821 PM CDT Thu Jun 3 2021

The National Weather Service in League City has issued a

* Tornado Warning for...
  Central Brazoria County in southeastern Texas...

* Until 845 PM CDT.
    
* At 821 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Richwood, or over Clute, moving northeast at 5
  mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Expect damage to mobile homes, roofs, and vehicles.

* This tornadic thunderstorm will remain over mainly rural areas of
  central Brazoria County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 2902 9540 2906 9546 2916 9541 2911 9532
TIME...MOT...LOC 0121Z 214DEG 4KT 2906 9540 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 7:02 PM CDT	Areal Flood Advisory	HGX	Harris	118 min
Jun 3, 7:26 PM CDT	Areal Flood Advisory	HGX	Houston, Walker	2 hr
Jun 3, 7:41 PM CDT	Special Marine Warning	HGX		64 min
Jun 3, 8:37 PM CDT	Special Marine Warning	HGX		83 min
Jun 3, 8:40 PM CDT	Tornado Warning	HGX	Brazoria	20 min
Jun 3, 9:16 PM CDT	Special Marine Warning	HGX		119 min
Jun 4, 1:03 AM CDT	River Flood Warning	HGX	Brazoria, Fort Bend, Wharton	7 days
Jun 4, 1:08 AM CDT	River Flood Warning	HGX	Brazoria	4 days
Jun 4, 4:03 AM CDT	Small Craft Advisory	HGX		6 hr
Jun 4, 7:09 AM CDT	River Flood Warning	HGX	Austin, Colorado, Fort Bend, Wharton	5 days
Jun 4, 10:24 AM CDT	River Flood Warning	HGX	Jackson	40 hr
Jun 4, 10:26 AM CDT	River Flood Warning	HGX	Jackson	3 days
Jun 4, 10:29 AM CDT	Areal Flood Advisory	HGX	Brazoria	2 hr
Jun 4, 10:43 AM CDT	Areal Flood Advisory	HGX	Galveston	2 hr
Jun 4, 11:23 AM CDT	Areal Flood Advisory	HGX	Galveston, Harris	112 min
Jun 4, 11:30 AM CDT	Special Marine Warning	HGX		30 min
Jun 4, 12:22 PM CDT	Flash Flood Warning	HGX	Galveston	113 min
Jun 4, 12:31 PM CDT	Areal Flood Advisory	HGX	Brazoria	119 min
Jun 4, 12:34 PM CDT	River Flood Warning	HGX	Matagorda, Wharton	56 hr
Jun 4, 12:45 PM CDT	Areal Flood Advisory	HGX	Galveston	2 hr
Jun 4, 1:19 PM CDT	Areal Flood Advisory	HGX	Galveston	116 min
Jun 4, 1:21 PM CDT	Special Marine Warning	HGX		39 min
Jun 4, 2:08 PM CDT	Special Marine Warning	HGX		37 min
Jun 4, 2:14 PM CDT	Special Marine Warning	HGX		46 min
Jun 4, 2:14 PM CDT	Special Weather Statement	HGX	Chambers	46 min
Jun 4, 2:47 PM CDT	Special Marine Warning	HGX		43 min
Jun 4, 3:48 PM CDT	Areal Flood Advisory	HGX	Brazoria, Jackson, Matagorda, Wharton	117 min
Jun 4, 6:12 PM CDT	Rip Current Statement	HGX	Brazoria, Galveston, Matagorda	4 hr

Nearby

Tornado Warnings in Texas, 2021 Every tornado warning in 2021 Tornadoes 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.