Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 85, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Oct 14, 2021, 5:16 AM CDT for Colorado County, Texas. It was in force for 44 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
- Oct 14, 2021, 5:16 AM CDT (10:16 UTC)
- Expired
- Oct 14, 2021, 6:00 AM CDT
- In force
- 44 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Colorado County, TX
The radar
The Austin/San Antonio radar (KEWX), 141 km from the middle of the area, began a volume at 10:21 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, 10.3 hours before the alert went out and 218 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
- 1651 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 7.0
The text
As transmitted.
548
WUUS54 KHGX 141016
SVRHGX
TXC089-141100-
/O.NEW.KHGX.SV.W.0085.211014T1016Z-211014T1100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Houston/Galveston TX
516 AM CDT Thu Oct 14 2021
The National Weather Service in League City has issued a
* Severe Thunderstorm Warning for...
Colorado County in southeastern Texas...
* Until 600 AM CDT.
* At 515 AM CDT, severe thunderstorms were located along a line
extending from near Weimar to near Schulenburg to near Sublime to
near Hallettsville, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Columbus, Eagle Lake, Weimar, Sheridan, Altair, Rock Island and
Garwood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2982 9670 2983 9644 2964 9630 2957 9632
2947 9637 2932 9657 2932 9658 2933 9656
2957 9678 2958 9680 2966 9685
TIME...MOT...LOC 1015Z 272DEG 30KT 2975 9685 2966 9686 2957 9681 2945
9684 2938 9696
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
691
WWUS54 KHGX 141035
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
535 AM CDT Thu Oct 14 2021
TXC089-141100-
/O.CON.KHGX.SV.W.0085.000000T0000Z-211014T1100Z/
Colorado TX-
535 AM CDT Thu Oct 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM CDT
FOR CENTRAL COLORADO COUNTY...
At 535 AM CDT, severe thunderstorms were located along a line
extending from near Weimar to 6 miles southwest of Columbus to 6
miles southeast of Sublime to 8 miles northeast of Ezzell, moving
east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Columbus, Eagle Lake, Weimar, Sheridan, Altair and Rock Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2978 9667 2977 9644 2964 9630 2957 9632
2947 9637 2947 9639 2945 9645 2943 9653
2942 9664 2957 9678 2958 9680 2966 9685
TIME...MOT...LOC 1035Z 269DEG 30KT 2975 9671 2966 9664 2957 9667 2945
9670 2938 9682
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$156
WWUS54 KHGX 141050
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
550 AM CDT Thu Oct 14 2021
TXC089-141100-
/O.EXP.KHGX.SV.W.0085.000000T0000Z-211014T1100Z/
Colorado TX-
550 AM CDT Thu Oct 14 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLORADO COUNTY WILL
EXPIRE AT 600 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
LAT...LON 2978 9667 2977 9644 2964 9630 2957 9632
2947 9637 2947 9639 2945 9645 2943 9653
2942 9664 2957 9678 2958 9680 2966 9685
TIME...MOT...LOC 1050Z 272DEG 30KT 2975 9664 2966 9657 2957 9660 2945
9663 2938 9675
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 9:37 PM CDT | Beach Hazards Statement | HGX | Brazoria, Galveston, Matagorda | 21 hr |
| Oct 13, 9:38 PM CDT | Small Craft Advisory | HGX | 12 hr | |
| Oct 14, 12:23 AM CDT | Special Weather Statement | HGX | Burleson | 52 min |
| Oct 14, 5:03 AM CDT | Special Weather Statement | HGX | Washington | 42 min |
| Oct 14, 5:41 AM CDT | Areal Flood Advisory | HGX | Austin, Colorado, Washington | 3 hr |
| Oct 14, 8:51 AM CDT | Areal Flood Advisory | HGX | Austin, Colorado | 114 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.