Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 13, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Jan 18, 2017, 5:03 AM CST for Harris County, Texas. It was in force for 27 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 18, 2017, 5:03 AM CST (11:03 UTC)
- Expired
- Jan 18, 2017, 5:30 AM CST
- In force
- 27 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Harris County, TX
The radar
The Houston radar (KHGX), 40 km from the middle of the area, began a volume at 11:02 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 11.1 hours before the alert went out and 201 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
- 508 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 635 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
112 WFUS54 KHGX 181103 TORHGX TXC201-181130- /O.NEW.KHGX.TO.W.0013.170118T1103Z-170118T1130Z/ BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Houston/Galveston TX 503 AM CST WED JAN 18 2017 The National Weather Service in League City has issued a * Tornado Warning for... Southwestern Harris County in southeastern Texas... * Until 530 AM CST. * At 502 AM CST, a severe thunderstorm capable of producing a tornado was located over Denver Harbor / Port Houston, or over Jacinto City, moving northeast at 15 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Expect damage to mobile homes, roofs, and vehicles. * Locations impacted include... Galena Park, Jacinto City, Second Ward, Greater Fifth Ward, Cloverleaf, Magnolia Park, El Dorado / Oates Prairie, Sheldon, Settegast, Clinton Park Tri-Community, Denver Harbor / Port Houston, Hunterwood, Northshore, East Houston, Pleasantville Area, Harrisburg / Manchester, Houston Gardens, Pecan Park, Lawndale / Wayside and East Little York / Homestead. 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. Tornadoes are extremely difficult to see and confirm at night. Do not wait to see or hear the tornado. TAKE COVER NOW! To report severe weather contact your nearest law enforcement agency. They will send your report to the National Weather Service office in League City. && LAT...LON 2971 9528 2975 9533 2995 9526 2986 9510 TIME...MOT...LOC 1102Z 219DEG 14KT 2977 9528 TORNADO...RADAR INDICATED HAIL...0.00IN $$ 40
2 follow-up statements
825
WWUS54 KHGX 181110
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
510 AM CST WED JAN 18 2017
TXC201-181130-
/O.CON.KHGX.TO.W.0013.000000T0000Z-170118T1130Z/
Harris TX-
510 AM CST WED JAN 18 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 AM CST FOR EAST
CENTRAL HARRIS COUNTY...
At 510 AM CST, a severe thunderstorm capable of producing a tornado
was located over El Dorado / Oates Prairie, or over Jacinto City,
moving northeast at 20 mph.
HAZARD...TORNADO.
SOURCE...Radar indicated rotation.
IMPACT...Expect damage to mobile homes, roofs, and vehicles.
Locations impacted include...
Galena Park, Jacinto City, Cloverleaf, Greater Fifth Ward, El Dorado
/ Oates Prairie, Sheldon, Settegast, Hunterwood, Northshore, East
Houston, Pleasantville Area, Clinton Park Tri-Community, Houston
Gardens, Denver Harbor / Port Houston, Kashmere Gardens and East
Little York / Homestead.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.
&&
LAT...LON 2995 9526 2986 9510 2974 9525 2979 9532
TIME...MOT...LOC 1110Z 218DEG 17KT 2980 9526
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
40266
WWUS54 KHGX 181124
SVSHGX
Severe Weather Statement
National Weather Service Houston/Galveston TX
524 AM CST WED JAN 18 2017
TXC201-181134-
/O.EXP.KHGX.TO.W.0013.000000T0000Z-170118T1130Z/
Harris TX-
524 AM CST WED JAN 18 2017
...THE TORNADO WARNING FOR EAST CENTRAL HARRIS COUNTY WILL EXPIRE AT
530 AM CST...
The tornadic thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire.
LAT...LON 2995 9526 2986 9510 2974 9525 2979 9532
TIME...MOT...LOC 1124Z 219DEG 14KT 2984 9522
$$
40The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 11:43 PM CST | Marine Dense Fog Advisory | HGX | 4 hr | |
| Jan 18, 1:05 AM CST | Tornado Warning | HGX | Wharton | 25 min |
| Jan 18, 3:02 AM CST | Areal Flood Advisory | HGX | Austin, Colorado, Fort Bend, Harris, Waller, Wharton | 118 min |
| Jan 18, 3:51 AM CST | Tornado Warning | HGX | Harris | 24 min |
| Jan 18, 4:16 AM CST | Areal Flood Advisory | HGX | Fort Bend, Harris, Montgomery | 59 min |
| Jan 18, 4:54 AM CST | Special Weather Statement | HGX | Harris | 51 min |
| Jan 18, 4:58 AM CST | Marine Dense Fog Advisory | HGX | 4 hr | |
| Jan 18, 5:19 AM CST | River Flood Warning | HGX | Harris | 24 hr |
| Jan 18, 5:21 AM CST | Flash Flood Warning | HGX | Fort Bend, Harris, Wharton | 5 hr |
| Jan 18, 5:47 AM CST | Special Weather Statement | HGX | Harris | 43 min |
| Jan 18, 6:36 AM CST | River Flood Warning | HGX | Austin, Fort Bend, Wharton | 5 days |
| Jan 18, 7:03 AM CST | River Flood Warning | HGX | Harris | 8 hr |
| Jan 18, 7:54 AM CST | River Flood Warning | HGX | Harris | 24 hr |
| Jan 18, 7:55 AM CST | River Flood Warning | HGX | Harris | 11 hr |
| Jan 18, 8:05 AM CST | River Flood Warning | HGX | Montgomery | 54 hr |
| Jan 18, 8:27 AM CST | River Flood Warning | HGX | Harris | 7 hr |
| Jan 18, 8:30 AM CST | River Flood Warning | HGX | Harris | 24 hr |
| Jan 18, 8:36 AM CST | River Flood Warning | HGX | Harris | 7 hr |
| Jan 18, 8:37 AM CST | River Flood Warning | HGX | Harris | 24 hr |
| Jan 18, 8:46 AM CST | River Flood Warning | HGX | Harris | 24 hr |
| Jan 18, 8:49 AM CST | River Flood Warning | HGX | Harris | 7 hr |
| Jan 18, 8:50 AM CST | River Flood Warning | HGX | Harris | 15 hr |
| Jan 18, 8:59 AM CST | River Flood Warning | HGX | Brazoria, Fort Bend, Wharton | 8 days |
| Jan 18, 8:59 AM CST | River Flood Warning | HGX | Brazoria | 4 days |
| Jan 18, 9:37 AM CST | River Flood Warning | HGX | Burleson, Harris, Lee | 6 days |
| Jan 18, 10:14 AM CST | Areal Flood Warning | HGX | Fort Bend, Harris, Wharton | 6 hr |
| Jan 18, 12:41 PM CST | Special Weather Statement | HGX | Liberty | 49 min |
| Jan 18, 2:13 PM CST | River Flood Warning | HGX | Harris | 30 hr |
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.