Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 16, NWS Houston/Galveston, TX

February 14, 2017Austin County, Fort Bend County, Wharton County, Texas

NWS Houston/Galveston, TX issued this tornado warning at Feb 14, 2017, 7:39 AM CST for Austin County, Fort Bend County, Wharton County, Texas. It was in force for 36 min. 1 report 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: Feb 14, 2017, 7:39 AM CST (13:39 UTC)
Expired: Feb 14, 2017, 8:15 AM CST
In force: 36 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Austin County, TX, Fort Bend County, TX, Wharton County, TX

The radar

The Houston radar (KHGX), 98 km from the middle of the area, began a volume at 13:39 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
Feb 14, 8:13 AM CST	TORNADO	6 Ssw Rosenberg, TX	TRAINED SPOTTER REPORTS BRIEF TORNADO TOUCHDOWN SSW OF ROSENBURG

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
Feb 14, 5:09 AM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 1.7 hours before the alert went out and 226 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1811 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 495 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 308 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 16.1

Open this sounding in Storm Lab

The text

As transmitted.

026 
WFUS54 KHGX 141339
TORHGX
TXC015-157-481-141415-
/O.NEW.KHGX.TO.W.0016.170214T1339Z-170214T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Houston/Galveston TX
739 AM CST TUE FEB 14 2017

The National Weather Service in League City has issued a

* Tornado Warning for...
  Northeastern Wharton County in southeastern Texas...
  Southeastern Austin County in southeastern Texas...
  West central Fort Bend County in southeastern Texas...

* Until 815 AM CST.

* At 738 AM CST, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Wharton, moving northeast at 40
  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. 

* Locations impacted include...
  Western Rosenberg, East Bernard, Pleak, Simonton, Beasley,
  Kendleton, Orchard, southeastern Weston Lakes, Egypt and
  Hungerford.

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 2932 9621 2944 9629 2968 9596 2946 9580
TIME...MOT...LOC 1338Z 240DEG 34KT 2940 9617 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Huffman

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 13, 9:35 PM CST	Marine Dense Fog Advisory	HGX		6 hr
Feb 14, 3:47 AM CST	Small Craft Advisory	HGX		12 hr
Feb 14, 5:55 AM CST	Special Weather Statement	HGX	Austin, Colorado	50 min
Feb 14, 6:28 AM CST	Severe Thunderstorm Warning	HGX	Colorado, Jackson, Matagorda, Wharton	62 min
Feb 14, 6:42 AM CST	Severe Thunderstorm Warning	HGX	Austin, Brazos, Burleson, Colorado, Grimes, Waller and 1 more	48 min
Feb 14, 6:45 AM CST	Tornado Warning	HGX	Colorado, Jackson, Wharton	45 min
Feb 14, 6:56 AM CST	Areal Flood Advisory	HGX	Colorado, Jackson, Wharton	3 hr
Feb 14, 7:25 AM CST	Severe Thunderstorm Warning	HGX	Austin, Brazoria, Colorado, Fort Bend, Jackson, Matagorda and 1 more	65 min
Feb 14, 7:28 AM CST	Special Weather Statement	HGX	Grimes, Montgomery, Waller	62 min
Feb 14, 7:29 AM CST	Tornado Warning	HGX	Brazoria, Fort Bend, Matagorda, Wharton	31 min
Feb 14, 7:31 AM CST	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Jackson, Wharton	3 hr
Feb 14, 7:55 AM CST	Tornado Warning	HGX	Brazoria, Fort Bend, Harris, Wharton	50 min
Feb 14, 7:59 AM CST	Special Marine Warning	HGX		2 hr
Feb 14, 8:16 AM CST	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Harris, Montgomery, Walker	44 min
Feb 14, 8:21 AM CST	Severe Thunderstorm Warning	HGX	Harris, Houston, Liberty, Madison, Montgomery, Polk and 3 more	54 min
Feb 14, 8:30 AM CST	Areal Flood Advisory	HGX	Austin, Brazoria, Colorado, Fort Bend, Galveston, Harris and 3 more	2 hr
Feb 14, 8:35 AM CST	Special Marine Warning	HGX		115 min
Feb 14, 8:37 AM CST	Tornado Warning	HGX	Brazoria, Fort Bend, Galveston, Harris	38 min
Feb 14, 8:42 AM CST	Tornado Warning	HGX	Brazoria, Galveston, Matagorda	33 min
Feb 14, 8:45 AM CST	Severe Thunderstorm Warning	HGX	Brazoria, Galveston, Matagorda	30 min
Feb 14, 8:56 AM CST	Severe Thunderstorm Warning	HGX	Brazoria, Chambers, Galveston, Harris, Liberty, Montgomery and 1 more	64 min
Feb 14, 8:58 AM CST	Severe Thunderstorm Warning	HGX	Houston, Liberty, Montgomery, Polk, San Jacinto, Trinity	47 min
Feb 14, 9:09 AM CST	Tornado Warning	HGX	Chambers, Harris, Liberty	30 min
Feb 14, 9:13 AM CST	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Harris	32 min
Feb 14, 9:21 AM CST	Severe Thunderstorm Warning	HGX	Brazoria, Galveston, Matagorda	39 min
Feb 14, 9:24 AM CST	Tornado Warning	HGX	Brazoria	36 min
Feb 14, 9:35 AM CST	Areal Flood Advisory	HGX	Harris, Liberty	115 min
Feb 14, 9:43 AM CST	Severe Thunderstorm Warning	HGX	Liberty, Polk	47 min
Feb 14, 9:56 AM CST	Tornado Warning	HGX	Brazoria, Galveston	34 min
Feb 14, 9:57 AM CST	Severe Thunderstorm Warning	HGX	Chambers, Galveston, Harris, Liberty, Polk	63 min
Feb 14, 10:22 AM CST	Severe Thunderstorm Warning	HGX	Chambers, Galveston	53 min
Feb 14, 10:28 AM CST	Special Marine Warning	HGX		2 hr
Feb 14, 3:51 PM CST	Small Craft Advisory	HGX		20 hr

Nearby

Tornado Warnings in Texas, 2017 Every tornado warning in 2017 Tornadoes 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.