Alert archive / Texas / Tornado Warnings in 2021
Tornado Warning 1, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Jan 6, 2021, 6:28 PM CST for Galveston County, Texas. It was in force for 20 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, 6:28 PM CST (00:28 UTC)
- Expired
- Jan 6, 2021, 6:48 PM CST
- In force
- 20 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Galveston County, TX
The radar
The Houston radar (KHGX), 37 km from the middle of the area, began a volume at 00:31 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, 0.5 hours before the alert went out and 162 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.
492
WFUS54 KHGX 070028
TORHGX
TXC167-070100-
/O.NEW.KHGX.TO.W.0001.210107T0028Z-210107T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
628 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...
* Until 700 PM CST.
* At 628 PM CST, A tornado was reported near Crystal Beach, or 11
miles north of Galveston Pier 21, moving east at 50 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 tornadic storm will be near...
Bolivar Peninsula around 655 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 2941 9479 2946 9481 2951 9456 2947 9453
TIME...MOT...LOC 0028Z 252DEG 43KT 2946 9473
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$1 follow-up statement
677
WWUS54 KHGX 070048
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
648 PM CST Wed Jan 6 2021
TXC167-070057-
/O.CAN.KHGX.TO.W.0001.000000T0000Z-210107T0100Z/
Galveston TX-
648 PM CST Wed Jan 6 2021
...THE TORNADO WARNING FOR NORTHEASTERN GALVESTON COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM CST for
southeastern Texas.
LAT...LON 2941 9479 2946 9481 2951 9456 2947 9453
TIME...MOT...LOC 0045Z 252DEG 43KT 2953 9447
$$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, 6:41 PM CST | Tornado Warning | HGX | Chambers, Galveston | 19 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.