Alert archive / Texas / Tornado Warnings in 2021
Tornado Warning 2, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Jan 6, 2021, 6:41 PM CST for Chambers County, Galveston County, Texas. It was in force for 19 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
- Jan 6, 2021, 6:41 PM CST (00:41 UTC)
- Expired
- Jan 6, 2021, 7:00 PM CST
- In force
- 19 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Chambers County, TX, Galveston County, TX
The radar
The Houston radar (KHGX), 62 km from the middle of the area, began a volume at 00:40 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 12:59 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.7 hours before the alert went out and 135 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
- 28 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 655 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 366 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
791
WFUS54 KHGX 070041
TORHGX
TXC071-167-070100-
/O.NEW.KHGX.TO.W.0002.210107T0041Z-210107T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
641 PM CST Wed Jan 6 2021
The National Weather Service in League City has issued a
* Tornado Warning for...
Northeastern Galveston County in southeastern Texas...
Southeastern Chambers County in southeastern Texas...
* Until 700 PM CST.
* At 640 PM CST, a severe thunderstorm capable of producing a tornado
was located near Rollover Pass, or 21 miles southeast of Beach
City, moving east at 55 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...
High Island around 650 PM CST.
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 2955 9439 2954 9439 2953 9464 2958 9465
2968 9435 2956 9435
TIME...MOT...LOC 0040Z 253DEG 49KT 2958 9454
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$1 follow-up statement
663
WWUS54 KHGX 070101
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
701 PM CST Wed Jan 6 2021
TXC071-167-070110-
/O.EXP.KHGX.TO.W.0002.000000T0000Z-210107T0100Z/
Galveston TX-Chambers TX-
701 PM CST Wed Jan 6 2021
...THE TORNADO WARNING FOR NORTHEASTERN GALVESTON AND SOUTHEASTERN
CHAMBERS COUNTIES HAS EXPIRED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been allowed to
expire.
LAT...LON 2955 9439 2954 9439 2953 9464 2958 9465
2968 9435 2956 9435
TIME...MOT...LOC 0100Z 253DEG 49KT 2965 9427
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 6, 6:16 PM CST | Severe Thunderstorm Warning | HGX | Brazoria, Chambers, Galveston, Harris | 44 min |
| Jan 6, 6:28 PM CST | Special Marine Warning | HGX | 2 hr | |
| Jan 6, 6:28 PM CST | Tornado Warning | HGX | Galveston | 20 min |
| Jan 6, 8:13 PM CST | Special Marine Warning | HGX | 32 min | |
| Jan 7, 4:22 PM CST | River Flood Warning | HGX | Polk, San Jacinto, Trinity, Walker | 50 hr |
Nearby
Tornado Warnings in Texas, 2021Every tornado warning in 2021Tornadoes 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.