Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 32, NWS Brownsville, TX
NWS Brownsville, TX issued this severe thunderstorm warning at Jul 20, 2021, 6:44 PM CDT for Hidalgo County, Starr County, Texas. It was in force for 46 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
- Jul 20, 2021, 6:44 PM CDT (23:44 UTC)
- Expired
- Jul 20, 2021, 7:30 PM CDT
- In force
- 46 min
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hidalgo County, TX, Starr County, TX
The radar
The Brownsville radar (KBRO), 109 km from the middle of the area, began a volume at 23:44 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, 11.7 hours before the alert went out and 111 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.
- Mixed-layer CAPE
- 1436 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 770 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -46 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
785
WUUS54 KBRO 202344
SVRBRO
TXC215-427-210030-
/O.NEW.KBRO.SV.W.0032.210720T2344Z-210721T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Brownsville TX
644 PM CDT Tue Jul 20 2021
The National Weather Service in Brownsville has issued a
* Severe Thunderstorm Warning for...
Western Hidalgo County in Deep South Texas...
Southeastern Starr County in Deep South Texas...
* Until 730 PM CDT.
* At 644 PM CDT, a severe thunderstorm was located over Mccook,
moving southeast at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Mission, Palmview, Penitas, Sullivan City, La Joya, Palmhurst, Los
Ebanos, Sharyland, Mccook and Linn.
This includes the following highways...
US Highway 83 between mile markers 832 and 850.
US Highway 281 between mile markers 758 and 764.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2617 9834 2615 9835 2617 9836 2616 9839
2620 9844 2622 9844 2622 9848 2620 9848
2622 9852 2624 9852 2623 9854 2624 9855
2622 9856 2626 9859 2625 9861 2629 9868
2665 9836 2654 9807 2612 9832
TIME...MOT...LOC 2344Z 294DEG 15KT 2646 9836
HAIL...<.75IN
WIND...60MPH
$$
BA2 follow-up statements
572
WWUS54 KBRO 210005
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
705 PM CDT Tue Jul 20 2021
TXC427-210015-
/O.CAN.KBRO.SV.W.0032.000000T0000Z-210721T0030Z/
Starr TX-
705 PM CDT Tue Jul 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STARR COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 2612 9832 2617 9834 2615 9835 2617 9836
2616 9839 2620 9844 2622 9844 2622 9848
2620 9848 2622 9850 2622 9852 2624 9852
2623 9854 2624 9855 2622 9856 2626 9859
2638 9853 2657 9838 2646 9812
TIME...MOT...LOC 0005Z 294DEG 15KT 2642 9827
$$
TXC215-210030-
/O.CON.KBRO.SV.W.0032.000000T0000Z-210721T0030Z/
Hidalgo TX-
705 PM CDT Tue Jul 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN HIDALGO COUNTY...
At 705 PM CDT, a severe thunderstorm was located 7 miles southeast of
Mccook, moving southeast at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Mission, Palmview, Penitas, Sullivan City, La Joya, Palmhurst, Los
Ebanos, Sharyland, Mccook and Alton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2612 9832 2617 9834 2615 9835 2617 9836
2616 9839 2620 9844 2622 9844 2622 9848
2620 9848 2622 9850 2622 9852 2624 9852
2623 9854 2624 9855 2622 9856 2626 9859
2638 9853 2657 9838 2646 9812
TIME...MOT...LOC 0005Z 294DEG 15KT 2642 9827
HAIL...<.75IN
WIND...60MPH
$$
BA829
WWUS54 KBRO 210026
SVSBRO
Severe Weather Statement
National Weather Service Brownsville TX
726 PM CDT Tue Jul 20 2021
TXC215-210036-
/O.EXP.KBRO.SV.W.0032.000000T0000Z-210721T0030Z/
Hidalgo TX-
726 PM CDT Tue Jul 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN HIDALGO COUNTY
WILL EXPIRE AT 730 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 2612 9832 2617 9834 2615 9835 2617 9836
2616 9839 2620 9844 2622 9844 2622 9848
2620 9848 2622 9850 2622 9852 2624 9852
2623 9854 2624 9855 2622 9856 2626 9859
2638 9853 2657 9838 2646 9812
TIME...MOT...LOC 0026Z 294DEG 15KT 2639 9820
$$
BAThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 4:06 PM CDT | Special Weather Statement | BRO | Starr | 24 min |
| Jul 20, 4:34 PM CDT | Special Weather Statement | BRO | Starr | 26 min |
| Jul 20, 4:54 PM CDT | Special Weather Statement | BRO | Starr | 36 min |
| Jul 20, 5:01 PM CDT | Special Weather Statement | BRO | Cameron | 29 min |
| Jul 20, 5:26 PM CDT | Special Weather Statement | BRO | Cameron | 34 min |
| Jul 20, 5:38 PM CDT | Special Weather Statement | BRO | Brooks | 37 min |
| Jul 20, 5:59 PM CDT | Special Weather Statement | BRO | Brooks | 31 min |
| Jul 20, 6:10 PM CDT | Special Weather Statement | BRO | Cameron | 35 min |
| Jul 20, 6:20 PM CDT | Special Weather Statement | BRO | Hidalgo | 40 min |
| Jul 20, 6:33 PM CDT | Special Weather Statement | BRO | Starr | 27 min |
| Jul 20, 6:40 PM CDT | Areal Flood Advisory | BRO | Cameron | 58 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning 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.