Alert archive / Texas / Tornado Warnings in 2012
Tornado Warning 21, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Feb 3, 2012, 4:35 PM CST for Grimes County, Waller County, Washington County, Texas. It was in force for 25 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
- Feb 3, 2012, 4:35 PM CST (22:35 UTC)
- Expired
- Feb 3, 2012, 5:00 PM CST
- In force
- 25 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Grimes County, TX, Waller County, TX, Washington County, TX
The radar
The Ft Hood radar (KGRK), 126 km from the middle of the area, began a volume at 22:38 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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 10.6 hours before the alert went out and 285 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
- 844 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 448 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
876
WFUS54 KHGX 032235
TORHGX
TXC185-473-477-032300-
/O.NEW.KHGX.TO.W.0021.120203T2235Z-120203T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
435 PM CST FRI FEB 3 2012
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN GRIMES COUNTY IN SOUTHEAST TEXAS...
NORTHWESTERN WALLER COUNTY IN SOUTHEAST TEXAS...
NORTHEASTERN WASHINGTON COUNTY IN SOUTHEAST TEXAS...
* UNTIL 500 PM CST
* AT 428 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS TORNADO
WAS LOCATED 11 MILES SOUTH OF WASHINGTON... MOVING NORTHEAST AT 10
MPH. A FUNNEL CLOUD WAS SIGHTED WITH THIS STORM.
* THE TORNADO WILL LIKELY REMAIN OVER RURAL PORTIONS OF THE WARNED
COUNTIES..
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN THE INTERIOR HALLWAY OR
A ROOM SUCH AS A CLOSET ON THE LOWEST LEVEL OF A STURDY BUILDING. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM
WINDOWS.
IF YOU ARE INSIDE A MOBILE HOME OR VEHICLE...EVACUATE THEM
IMMEDIATELY AND SEEK SHELTER INSIDE A STURDY BUILDING. AS A LAST
RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW SPOT AND COVER YOUR
HEAD WITH YOUR HANDS.
&&
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3039 9618 3038 9618 3038 9616 3036 9615
3038 9614 3038 9613 3028 9596 3012 9619
3015 9626
TIME...MOT...LOC 2234Z 214DEG 10KT 3018 9619
$$1 follow-up statement
718
WWUS54 KHGX 032301
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
501 PM CST FRI FEB 3 2012
TXC185-473-477-032311-
/O.EXP.KHGX.TO.W.0021.000000T0000Z-120203T2300Z/
GRIMES TX-WALLER TX-WASHINGTON TX-
501 PM CST FRI FEB 3 2012
...THE TORNADO WARNING FOR WASHINGTON...WALLER AND GRIMES COUNTIES
HAS EXPIRED...
THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND A FUNNEL CLOUD
IS NO LONGER VISIBLE WITH THE STORM ACCORDING TO LAW ENFORCEMENT.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3039 9618 3038 9618 3038 9616 3036 9615
3038 9614 3038 9613 3028 9596 3012 9619
3015 9626
TIME...MOT...LOC 2235Z 214DEG 10KT 3018 9619
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 3, 5:29 AM CST | Areal Flood Advisory | HGX | Liberty, Polk, San Jacinto | 2 hr |
| Feb 3, 6:00 AM CST | Flash Flood Warning | HGX | Liberty, Polk, San Jacinto | 2 hr |
| Feb 3, 8:28 AM CST | Flash Flood Warning | HGX | Liberty, Polk, San Jacinto | 2 hr |
| Feb 3, 9:21 AM CST | River Flood Warning | HGX | Liberty, Polk | 69 hr |
| Feb 3, 4:30 PM CST | Special Weather Statement | HGX | Grimes | 60 min |
| Feb 3, 4:42 PM CST | Severe Thunderstorm Warning | HGX | Brazos, Burleson | 48 min |
| Feb 3, 5:23 PM CST | Flash Flood Warning | HGX | Burleson | 2 hr |
| Feb 3, 5:48 PM CST | Special Weather Statement | HGX | Brazos | 57 min |
Nearby
Tornado Warnings in Texas, 2012Every tornado warning in 2012Tornadoes in 2012
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.