Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 9, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Jan 16, 2017, 8:25 AM CST for Fort Bend County, Harris County, Waller County, Texas. It was in force for 35 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 16, 2017, 8:25 AM CST (14:25 UTC)
- Expired
- Jan 16, 2017, 9:00 AM CST
- In force
- 35 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Fort Bend County, TX, Harris County, TX, Waller County, TX
The radar
The Houston radar (KHGX), 93 km from the middle of the area, began a volume at 14:25 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 2, 1:39 AM CST | Severe Thunderstorm Watch | SPC | 59 days |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 2.4 hours before the alert went out and 256 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
- 365 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted.
012
WFUS54 KHGX 161425
TORHGX
TXC157-201-473-161500-
/O.NEW.KHGX.TO.W.0009.170116T1425Z-170116T1500Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
825 AM CST MON JAN 16 2017
The National Weather Service in League City has issued a
* Tornado Warning for...
Southeastern Waller County in southeastern Texas...
West central Harris County in southeastern Texas...
Northwestern Fort Bend County in southeastern Texas...
* Until 900 AM CST.
* At 825 AM CST, a severe thunderstorm capable of producing a tornado
was located over Simonton, or 8 miles south of Brookshire, moving
northeast at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
* Locations impacted include...
Katy, Brookshire, Fulshear, Simonton, Pattison, Orchard, Weston
Lakes and Cinco Ranch.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to 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.
Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.
&&
LAT...LON 2969 9604 2968 9601 2970 9602 2971 9601
2972 9603 2977 9603 3004 9590 2990 9566
2960 9598 2962 9602 2965 9602 2966 9603
2967 9602 2968 9603 2967 9605 2968 9606
TIME...MOT...LOC 1425Z 215DEG 26KT 2967 9600
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$2 follow-up statements
871
WWUS54 KHGX 161444
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
844 AM CST MON JAN 16 2017
TXC157-201-473-161500-
/O.CON.KHGX.TO.W.0009.000000T0000Z-170116T1500Z/
Waller TX-Harris TX-Fort Bend TX-
844 AM CST MON JAN 16 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 AM CST FOR
SOUTHEASTERN WALLER...WEST CENTRAL HARRIS AND NORTH CENTRAL FORT BEND
COUNTIES...
At 843 AM CST, a severe thunderstorm capable of producing a tornado
was located over Brookshire, moving northeast at 25 mph.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Katy, Brookshire and Pattison.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.
&&
LAT...LON 2974 9599 3004 9590 2990 9566 2970 9591
TIME...MOT...LOC 1443Z 215DEG 23KT 2976 9592
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$914
WWUS54 KHGX 161456
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
856 AM CST MON JAN 16 2017
TXC157-201-473-161506-
/O.EXP.KHGX.TO.W.0009.000000T0000Z-170116T1500Z/
Waller TX-Harris TX-Fort Bend TX-
856 AM CST MON JAN 16 2017
...THE TORNADO WARNING FOR SOUTHEASTERN WALLER...WEST CENTRAL HARRIS
AND NORTH CENTRAL FORT BEND COUNTIES WILL EXPIRE AT 900 AM CST...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
League City.
LAT...LON 2974 9599 3004 9590 2990 9566 2970 9591
TIME...MOT...LOC 1456Z 215DEG 26KT 2983 9586
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 16, 3:41 AM CST | Special Weather Statement | HGX | Madison | 49 min |
| Jan 16, 3:51 AM CST | Special Weather Statement | HGX | Grimes | 54 min |
| Jan 16, 3:56 AM CST | Special Weather Statement | HGX | Houston | 34 min |
| Jan 16, 4:16 AM CST | Special Weather Statement | HGX | Wharton | 44 min |
| Jan 16, 4:42 AM CST | Tornado Warning | HGX | Austin, Colorado, Fort Bend, Wharton | 33 min |
| Jan 16, 4:44 AM CST | Special Weather Statement | HGX | Grimes | 46 min |
| Jan 16, 4:51 AM CST | Areal Flood Advisory | HGX | Austin, Colorado, Fort Bend, Wharton | 54 min |
| Jan 16, 5:16 AM CST | Tornado Warning | HGX | Austin, Colorado, Fort Bend, Wharton | 29 min |
| Jan 16, 5:47 AM CST | Tornado Warning | HGX | Austin, Fort Bend, Waller, Wharton | 28 min |
| Jan 16, 5:48 AM CST | Areal Flood Advisory | HGX | Austin, Colorado, Fort Bend, Waller, Wharton | 57 min |
| Jan 16, 6:12 AM CST | Tornado Warning | HGX | Austin, Fort Bend, Harris, Waller | 33 min |
| Jan 16, 6:46 AM CST | Tornado Warning | HGX | Harris | 29 min |
| Jan 16, 6:58 AM CST | Areal Flood Advisory | HGX | Austin, Fort Bend, Harris, Waller | 62 min |
| Jan 16, 7:14 AM CST | Tornado Warning | HGX | Harris | 31 min |
| Jan 16, 7:40 AM CST | Tornado Warning | HGX | Harris, Montgomery | 35 min |
| Jan 16, 8:10 AM CST | Tornado Warning | HGX | Harris, Liberty, Montgomery | 35 min |
| Jan 16, 8:39 AM CST | Special Weather Statement | HGX | Montgomery | 36 min |
| Jan 16, 8:52 AM CST | Special Weather Statement | HGX | San Jacinto | 23 min |
| Jan 16, 8:55 AM CST | Special Weather Statement | HGX | Waller | 50 min |
| Jan 16, 9:02 AM CST | Tornado Warning | HGX | Montgomery | 28 min |
| Jan 16, 9:24 AM CST | Special Weather Statement | HGX | San Jacinto | 36 min |
| Jan 16, 9:42 AM CST | Special Weather Statement | HGX | Montgomery | 33 min |
| Jan 16, 10:06 AM CST | Special Weather Statement | HGX | San Jacinto | 39 min |
| Jan 16, 11:04 AM CST | Special Weather Statement | HGX | Polk | 26 min |
Nearby
Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017
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.