Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 72, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jul 12, 2021, 12:43 PM CDT for Brazos County, Burleson County, Texas. It was in force for 18 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 12, 2021, 12:43 PM CDT (17:43 UTC)
- Expired
- Jul 12, 2021, 1:01 PM CDT
- In force
- 18 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Brazos County, TX, Burleson County, TX
The radar
The Ft Hood radar (KGRK), 94 km from the middle of the area, began a volume at 17:44 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
Fort Worth, TX (KFWD), launched 12:00Z, 5.7 hours before the alert went out and 269 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
- 373 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1322 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
704
WUUS54 KHGX 121743
SVRHGX
TXC041-051-121815-
/O.NEW.KHGX.SV.W.0072.210712T1743Z-210712T1815Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Houston/Galveston TX
1243 PM CDT Mon Jul 12 2021
The National Weather Service in League City has issued a
* Severe Thunderstorm Warning for...
East central Burleson County in southeastern Texas...
South central Brazos County in southeastern Texas...
* Until 115 PM CDT.
* At 1243 PM CDT, a severe thunderstorm was located near Snook, or 10
miles west of College Station, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Southwestern College Station, Snook and Wellborn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3052 9655 3058 9648 3055 9625 3047 9630
TIME...MOT...LOC 1743Z 280DEG 10KT 3054 9646
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
122
WWUS54 KHGX 121801
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
101 PM CDT Mon Jul 12 2021
TXC041-051-121806-
/O.CAN.KHGX.SV.W.0072.000000T0000Z-210712T1815Z/
Burleson TX-Brazos TX-
101 PM CDT Mon Jul 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BURLESON AND
SOUTH CENTRAL BRAZOS COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
LAT...LON 3052 9655 3058 9648 3055 9625 3047 9630
TIME...MOT...LOC 1756Z 280DEG 10KT 3053 9642
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 7:21 PM CDT | Special Weather Statement | HGX | Houston | 39 min |
| Jul 11, 7:39 PM CDT | Special Weather Statement | HGX | Houston | 51 min |
| Jul 11, 7:58 PM CDT | Special Weather Statement | HGX | Houston | 47 min |
| Jul 12, 8:29 AM CDT | Areal Flood Advisory | HGX | Brazos, Madison | 3 hr |
| Jul 12, 9:03 AM CDT | Areal Flood Advisory | HGX | Walker | 117 min |
| Jul 12, 9:08 AM CDT | Special Weather Statement | HGX | San Jacinto | 37 min |
| Jul 12, 9:36 AM CDT | Special Weather Statement | HGX | San Jacinto | 39 min |
| Jul 12, 10:12 AM CDT | Special Weather Statement | HGX | Liberty, Polk, San Jacinto | 48 min |
| Jul 12, 11:29 AM CDT | Areal Flood Advisory | HGX | Brazos, Madison | 3 hr |
| Jul 12, 11:33 AM CDT | Areal Flood Advisory | HGX | Houston | 3 hr |
| Jul 12, 12:01 PM CDT | Special Weather Statement | HGX | Brazos | 59 min |
| Jul 12, 1:10 PM CDT | Areal Flood Advisory | HGX | Brazos, Grimes | 110 min |
| Jul 12, 1:21 PM CDT | Tornado Warning | HGX | Montgomery, Walker | 12 min |
| Jul 12, 2:34 PM CDT | Special Weather Statement | HGX | Montgomery, San Jacinto, Waller | 41 min |
| Jul 12, 3:06 PM CDT | Special Weather Statement | HGX | Harris | 39 min |
| Jul 12, 3:43 PM CDT | Special Weather Statement | HGX | Fort Bend, Harris | 47 min |
| Jul 12, 4:31 PM CDT | Special Weather Statement | HGX | Chambers, Fort Bend | 59 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.