Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 1, NWS Brownsville, TX

May 15, 2021Hidalgo County, Texas

NWS Brownsville, TX issued this tornado warning at May 15, 2021, 12:22 PM CDT for Hidalgo County, Texas. It was in force for 8 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: May 15, 2021, 12:22 PM CDT (17:22 UTC)
Expired: May 15, 2021, 12:30 PM CDT
In force: 8 min
Issued by: NWS Brownsville, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Hidalgo County, TX

The radar

The Brownsville radar (KBRO), 97 km from the middle of the area, began a volume at 17:24 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

Brownsville Intl, TX (KBRO), launched 12:00Z, 5.4 hours before the alert went out and 99 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: 1407 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 634 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

847 
WFUS54 KBRO 151722
TORBRO
TXC215-151730-
/O.NEW.KBRO.TO.W.0001.210515T1722Z-210515T1730Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Brownsville TX
1222 PM CDT Sat May 15 2021

The National Weather Service in Brownsville has issued a

* Tornado Warning for...
  South central Hidalgo County in Deep South Texas...

* Until 1230 PM CDT.
    
* At 1222 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Madero, or near Mission, moving north at
  15 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Mission, Palmview, Palmhurst, Sharyland, South McAllen, North 
  McAllen, Alton, Mission Regional Medical Center, Castro Elementary 
  School and Lloyd & Dolly Bentsen Elementary School around 1230 PM 
  CDT.

Other locations impacted by this tornadic thunderstorm include Boeye
Reservoir, National Butterfly Center, Juan N. Seguin Elementary
School, Astroland Park, Michael E Fossum Middle School, Palmview
South, Mcallen, Enrique Camarena Elementary School, Robin Park and
Retama Park.

This includes Interstate Highway 69 C between mile markers 2 and 4.
 
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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2614 9834 2614 9833 2615 9834 2617 9834
      2617 9835 2615 9835 2617 9836 2616 9837
      2616 9839 2617 9839 2635 9841 2626 9814
      2612 9833
TIME...MOT...LOC 1722Z 201DEG 12KT 2617 9834 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Farris

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 10:56 AM CDT	Special Weather Statement	BRO	Hidalgo	49 min
May 15, 11:25 AM CDT	Special Weather Statement	BRO	Hidalgo	50 min
May 15, 11:39 AM CDT	Areal Flood Advisory	BRO	Hidalgo	51 min
May 15, 12:14 PM CDT	Special Weather Statement	BRO	Hidalgo, Starr	46 min
May 15, 12:23 PM CDT	Areal Flood Advisory	BRO	Hidalgo	112 min
May 15, 12:28 PM CDT	Tornado Warning	BRO	Hidalgo	17 min
May 15, 12:41 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo	49 min
May 15, 12:48 PM CDT	Areal Flood Advisory	BRO	Hidalgo, Starr	75 min
May 15, 1:02 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo, Willacy	28 min
May 15, 1:12 PM CDT	Flash Flood Warning	BRO	Hidalgo	49 min
May 15, 1:26 PM CDT	Severe Thunderstorm Warning	BRO	Cameron, Hidalgo, Willacy	28 min
May 15, 1:30 PM CDT	Tornado Warning	BRO	Hidalgo, Willacy	15 min
May 15, 1:53 PM CDT	Areal Flood Advisory	BRO	Cameron, Hidalgo, Willacy	52 min
May 15, 2:01 PM CDT	Special Weather Statement	BRO	Cameron, Willacy	29 min
May 15, 2:23 PM CDT	Special Marine Warning	BRO		97 min
May 15, 2:29 PM CDT	Special Weather Statement	BRO	Cameron	46 min
May 15, 2:37 PM CDT	Areal Flood Advisory	BRO	Cameron, Hidalgo, Willacy	53 min
May 15, 3:15 PM CDT	Special Weather Statement	BRO	Cameron	30 min
May 15, 3:22 PM CDT	Special Weather Statement	BRO	Cameron	38 min
May 15, 3:25 PM CDT	Areal Flood Advisory	BRO	Cameron, Willacy	65 min
May 15, 5:20 PM CDT	Special Marine Warning	BRO		25 min

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.