Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 18, NWS Houston/Galveston, TX

February 14, 20174 counties in Texas

NWS Houston/Galveston, TX issued this tornado warning at Feb 14, 2017, 8:37 AM CST for 4 counties in Texas. It was in force for 38 min. 6 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
Feb 14, 2017, 8:37 AM CST (14:37 UTC)
Expired
Feb 14, 2017, 9:15 AM CST
In force
38 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Brazoria County, TX, Fort Bend County, TX, Galveston County, TX, Harris County, TX

The radar

The Houston radar (KHGX), 40 km from the middle of the area, began a volume at 14:39 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

TimeReportWhereRemark
Feb 14, 8:38 AM CSTTORNADO2 Ssw Stafford, TXEF-0 FROM 838 AM TO 841 AM. ESTIMATED PEAK WIND 80 MPH. PATH LENGTH APPROXIMATELY 0.76 MILES AND PATH WIDTH APPROXIMATELY 100 YARDS IN MISSOURI CITY.
Feb 14, 8:39 AM CSTTORNADOStafford, TXEF-0 TORNADO BLEW OFF SEVERAL ROOFS FROM HOMES AND BUSINESSES FROM MURPHY RD TO GREENBRIER RD IN STAFFORD.
Feb 14, 8:39 AM CSTTORNADOStafford, TXSEVERAL ROOFS FROM HOMES AND BUSINESS BLOWN OFF FROM MURPHY RD TO GREENBRIER RO IN STAFFORD.
Feb 14, 8:39 AM CSTTORNADOStafford, TXSEVERAL ROOFS FROM HOMES AND BUSINESS BLOWN OFF FROM MURPHY RD TO GREENBRIER RO IN STAFFORD. MULTIPLE SIGHTINGS OF FUNNEL CLOUD WITH DAMAGE.
Feb 14, 8:45 AM CSTTORNADO2 Ssw Stafford, TXNWS DAMAGE SURVEY INVESTIGATED ROOF DAMAGE TO 40 HOMES IN THE BRIGHTWATER SUBDIVISION OF MISSOURI CITY AND FOUND EF-0 DAMAGE WITH PEAK WINDS ESTIMATED AT 80 MPH.
Feb 14, 8:55 AM CSTTSTM WND DMGSouthside Place, TXFENCES BLOWN DOWN AROUND 3700 BELLARE BLVD

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.

IssuedProductOfficeLasted
Jan 2, 1:39 AM CSTSevere Thunderstorm WatchSPC59 days
Feb 14, 5:09 AM CSTTornado WatchSPC6 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.6 hours before the alert went out and 225 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2017-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 2017-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
22 J/kg
Mixed-layer CIN
-294 J/kg
Mixed-layer LCL
644 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

042 
WFUS54 KHGX 141437
TORHGX
TXC039-157-167-201-141515-
/O.NEW.KHGX.TO.W.0018.170214T1437Z-170214T1515Z/

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

The National Weather Service in League City has issued a

* Tornado Warning for...
  Southwestern Harris County in southeastern Texas...
  Northwestern Galveston County in southeastern Texas...
  North central Brazoria County in southeastern Texas...
  Northeastern Fort Bend County in southeastern Texas...

* Until 915 AM CST.

* At 837 AM CST, a severe thunderstorm capable of producing a tornado
  was located over northeastern Riverstone, or over First Colony,
  moving east at 30 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...
  Northwestern Pasadena, Pearland, Sugar Land, Missouri City,
  northern Friendswood, Stafford, South Houston, Bellaire, West
  University Place, Galena Park, Jacinto City, Webster, Hunters Creek
  Village, Piney Point Village, Astrodome Area, Greater Fifth Ward,
  Fourth Ward, Fresno, Town West and First Colony.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2951 9560 2970 9568 2982 9529 2953 9511
TIME...MOT...LOC 1437Z 253DEG 28KT 2957 9558 

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

$$
1 follow-up statement
176 
WWUS54 KHGX 141502
SVSHGX

Severe Weather Statement
National Weather Service Houston/Galveston TX
902 AM CST TUE FEB 14 2017

TXC157-167-141511-
/O.CAN.KHGX.TO.W.0018.000000T0000Z-170214T1515Z/
Galveston TX-Fort Bend TX-
902 AM CST TUE FEB 14 2017

...THE TORNADO WARNING FOR NORTHWESTERN GALVESTON AND NORTHEASTERN
FORT BEND COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out.
moved out of the warned area. Therefore, the warning has been
cancelled.

A tornado watch remains in effect until 100 PM CST for southeastern
Texas.

LAT...LON 2958 9542 2975 9550 2982 9529 2957 9513
TIME...MOT...LOC 1501Z 252DEG 35KT 2971 9541 

$$

TXC039-201-141515-
/O.CON.KHGX.TO.W.0018.000000T0000Z-170214T1515Z/
Harris TX-Brazoria TX-
902 AM CST TUE FEB 14 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CST FOR
SOUTHWESTERN HARRIS AND NORTH CENTRAL BRAZORIA COUNTIES...
    
At 901 AM CST, a severe thunderstorm capable of producing a tornado
was located over University Place, moving east 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...
Northwestern Pasadena, northern Pearland, South Houston, Bellaire,
West University Place, Galena Park, Jacinto City, Astrodome Area,
Greater Fifth Ward, Fourth Ward, Neartown / Montrose, Second Ward,
Greater Eastwood, Greater Hobby Area, Downtown Houston, Greenway /
Upper Kirby Area, South Belt / Ellington, University Place, Afton
Oaks / River Oaks Area and Greater Third Ward.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 2958 9542 2975 9550 2982 9529 2957 9513
TIME...MOT...LOC 1501Z 252DEG 35KT 2971 9541 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 9:35 PM CSTMarine Dense Fog AdvisoryHGX6 hr
Feb 14, 3:47 AM CSTSmall Craft AdvisoryHGX12 hr
Feb 14, 5:55 AM CSTSpecial Weather StatementHGXAustin, Colorado50 min
Feb 14, 6:28 AM CSTSevere Thunderstorm WarningHGXColorado, Jackson, Matagorda, Wharton62 min
Feb 14, 6:42 AM CSTSevere Thunderstorm WarningHGXAustin, Brazos, Burleson, Colorado, Grimes, Waller and 1 more48 min
Feb 14, 6:45 AM CSTTornado WarningHGXColorado, Jackson, Wharton45 min
Feb 14, 6:56 AM CSTAreal Flood AdvisoryHGXColorado, Jackson, Wharton3 hr
Feb 14, 7:25 AM CSTSevere Thunderstorm WarningHGXAustin, Brazoria, Colorado, Fort Bend, Jackson, Matagorda and 1 more65 min
Feb 14, 7:28 AM CSTSpecial Weather StatementHGXGrimes, Montgomery, Waller62 min
Feb 14, 7:29 AM CSTTornado WarningHGXBrazoria, Fort Bend, Matagorda, Wharton31 min
Feb 14, 7:31 AM CSTAreal Flood AdvisoryHGXAustin, Colorado, Fort Bend, Jackson, Wharton3 hr
Feb 14, 7:39 AM CSTTornado WarningHGXAustin, Fort Bend, Wharton36 min
Feb 14, 7:55 AM CSTTornado WarningHGXBrazoria, Fort Bend, Harris, Wharton50 min
Feb 14, 7:59 AM CSTSpecial Marine WarningHGX2 hr
Feb 14, 8:16 AM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Harris, Montgomery, Walker44 min
Feb 14, 8:21 AM CSTSevere Thunderstorm WarningHGXHarris, Houston, Liberty, Madison, Montgomery, Polk and 3 more54 min
Feb 14, 8:30 AM CSTAreal Flood AdvisoryHGXAustin, Brazoria, Colorado, Fort Bend, Galveston, Harris and 3 more2 hr
Feb 14, 8:35 AM CSTSpecial Marine WarningHGX115 min
Feb 14, 8:42 AM CSTTornado WarningHGXBrazoria, Galveston, Matagorda33 min
Feb 14, 8:45 AM CSTSevere Thunderstorm WarningHGXBrazoria, Galveston, Matagorda30 min
Feb 14, 8:56 AM CSTSevere Thunderstorm WarningHGXBrazoria, Chambers, Galveston, Harris, Liberty, Montgomery and 1 more64 min
Feb 14, 8:58 AM CSTSevere Thunderstorm WarningHGXHouston, Liberty, Montgomery, Polk, San Jacinto, Trinity47 min
Feb 14, 9:09 AM CSTTornado WarningHGXChambers, Harris, Liberty30 min
Feb 14, 9:13 AM CSTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Harris32 min
Feb 14, 9:21 AM CSTSevere Thunderstorm WarningHGXBrazoria, Galveston, Matagorda39 min
Feb 14, 9:24 AM CSTTornado WarningHGXBrazoria36 min
Feb 14, 9:35 AM CSTAreal Flood AdvisoryHGXHarris, Liberty115 min
Feb 14, 9:43 AM CSTSevere Thunderstorm WarningHGXLiberty, Polk47 min
Feb 14, 9:56 AM CSTTornado WarningHGXBrazoria, Galveston34 min
Feb 14, 9:57 AM CSTSevere Thunderstorm WarningHGXChambers, Galveston, Harris, Liberty, Polk63 min
Feb 14, 10:22 AM CSTSevere Thunderstorm WarningHGXChambers, Galveston53 min
Feb 14, 10:28 AM CSTSpecial Marine WarningHGX2 hr
Feb 14, 3:51 PM CSTSmall Craft AdvisoryHGX20 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.