Alert archive / Texas / Tornado Watches in 2022
Tornado Watch 13
The Storm Prediction Center issued this tornado watch at Jan 8, 2022, 4:45 PM CST for 21 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 8, 2022, 4:45 PM CST (22:45 UTC)
- Expired
- Jan 9, 2022, 12:00 AM CST
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 50 kt
All 21 counties
Angelina County, TX, Chambers County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Jasper County, TX, Jefferson County, TX, Liberty County, TX, Montgomery County, TX, Nacogdoches County, TX, Newton County, TX, Orange County, TX, Polk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX
The radar
The Ft Polk radar (KPOE), 147 km from the middle of the area, began a volume at 22:47 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 30%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 8, 6:01 PM CST | Tornado Warning | HGX | Liberty | 29 min |
| Jan 8, 6:20 PM CST | Flash Flood Warning | HGX | Liberty | 115 min |
| Jan 8, 6:31 PM CST | Tornado Warning | HGX | Liberty | 29 min |
| Jan 8, 6:46 PM CST | Tornado Warning | LCH | Hardin | 29 min |
| Jan 8, 7:53 PM CST | Tornado Warning | LCH | Tyler | 37 min |
| Jan 8, 8:23 PM CST | Flash Flood Warning | LCH | Hardin, Tyler | 3 hr |
| Jan 8, 8:29 PM CST | Severe Thunderstorm Warning | LCH | Jasper, Tyler | 31 min |
| Jan 8, 11:09 PM CST | Flash Flood Warning | HGX | Liberty, Polk | 5 hr |
| Jan 8, 11:20 PM CST | Tornado Warning | HGX | Fort Bend, Harris, Montgomery | 25 min |
| Jan 8, 11:44 PM CST | Tornado Warning | HGX | Harris | 31 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.8 hours before the alert went out and 156 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 556 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 334 m²/s²
- 0-3 km storm-relative helicity
- 453 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.6
The text
As transmitted.
991 WWUS20 KWNS 082242 SEL3 SPC WW 082242 TXZ000-090400- URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 13 NWS Storm Prediction Center Norman OK 445 PM CST Sat Jan 8 2022 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Southeast Texas * Effective this Saturday afternoon and evening from 445 PM until 1000 PM CST. * Primary threats include... A couple tornadoes possible Isolated damaging wind gusts to 60 mph possible SUMMARY...Regenerative supercells will remain possible through this evening. Brief tornadoes will be the primary hazard. The tornado watch area is approximately along and 50 statute miles east and west of a line from 50 miles north northeast of Lufkin TX to 15 miles east southeast of Houston TX. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 0.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 20025. ...Grams
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 8, 11:33 AM CST | Mesoscale Discussion | SPC | Angelina, Austin, Brazoria, Brazos, Chambers, Fort Bend and 19 more | 2 hr |
| Jan 8, 3:51 PM CST | Mesoscale Discussion | SPC | Chambers, Hardin, Harris, Liberty, Montgomery, Polk and 1 more | 84 min |
Nearby
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.