Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 7, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Jan 16, 2017, 7:40 AM CST for Harris County, Montgomery County, Texas. It was in force for 35 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 16, 2017, 7:40 AM CST (13:40 UTC)
- Expired
- Jan 16, 2017, 8:15 AM CST
- In force
- 35 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Harris County, TX, Montgomery County, TX
The radar
The Houston radar (KHGX), 70 km from the middle of the area, began a volume at 13:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 16, 7:45 AM CST | FUNNEL CLOUD | 8 Nne Jersey Village, TX | TRAINED SPOTTER REPORTED A FUNNEL CLOUD NEAR CYPRESSWOOD DR AND CHAMPIONS FOREST DR |
| Jan 16, 7:45 AM CST | TSTM WND DMG | 8 Nne Jersey Village, TX | AT CYPRESSWOOD AND CHAMPION FOREST... AN URGENT CARE HAS POWERLINES AND TREES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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
Lake Charles Mun, LA (KLCH), launched 12:00Z, 1.7 hours before the alert went out and 215 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
- 423 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 553 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 290 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.0
The text
As transmitted.
400 WFUS54 KHGX 161340 TORHGX TXC201-339-161415- /O.NEW.KHGX.TO.W.0007.170116T1340Z-170116T1415Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Houston/Galveston TX 740 AM CST MON JAN 16 2017 The National Weather Service in League City has issued a * Tornado Warning for... Southeastern Montgomery County in southeastern Texas... North central Harris County in southeastern Texas... * Until 815 AM CST. * At 739 AM CST, a severe thunderstorm capable of producing a tornado was located over Willowbrook, or near Greater Greenspoint, moving northeast at 35 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * Locations impacted include... Spring, Greater Greenspoint, The Woodlands, Kingwood, Oak Ridge North, Porter Heights, Splashtown, Willowbrook, Chateau Woods, northwestern Bush Intercontinental Airport, Greater Inwood, Porter and New Caney. 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. 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 2988 9553 2995 9562 3030 9534 3012 9514 TIME...MOT...LOC 1339Z 225DEG 29KT 2997 9551 TORNADO...RADAR INDICATED HAIL...0.00IN $$ 40
1 follow-up statement
001
WWUS54 KHGX 161351
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
751 AM CST MON JAN 16 2017
TXC201-339-161415-
/O.CON.KHGX.TO.W.0007.000000T0000Z-170116T1415Z/
Montgomery TX-Harris TX-
751 AM CST MON JAN 16 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 AM CST FOR
SOUTHEASTERN MONTGOMERY AND NORTH CENTRAL HARRIS COUNTIES...
At 745 AM CST, a trained weather spotter reported a funnel cloud
near the intersection of Cypresswood and Champion Forest Drive,
moving northeast at 30 mph. This storm has had a history of
producing damage.
HAZARD...TORNADO.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Spring, Greater Greenspoint, The Woodlands, Kingwood, Oak Ridge
North, Porter Heights, Splashtown, Chateau Woods, northwestern Bush
Intercontinental Airport, Porter and New Caney.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.
&&
LAT...LON 2993 9548 3001 9556 3030 9534 3012 9514
TIME...MOT...LOC 1349Z 222DEG 25KT 3001 9547
TORNADO...OBSERVED
HAIL...<.75IN
$$
40The 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, 8:10 AM CST | Tornado Warning | HGX | Harris, Liberty, Montgomery | 35 min |
| Jan 16, 8:25 AM CST | Tornado Warning | HGX | Fort Bend, Harris, Waller | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.