Alert archive / Texas / Tornado Warnings in 2012
Tornado Warning 34, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at May 31, 2012, 1:01 PM CDT for Fort Bend County, Harris County, Texas. It was in force for 29 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
- May 31, 2012, 1:01 PM CDT (18:01 UTC)
- Expired
- May 31, 2012, 1:30 PM CDT
- In force
- 29 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Fort Bend County, TX, Harris County, TX
The radar
The Houston radar (KHGX), 71 km from the middle of the area, began a volume at 18:04 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 |
|---|---|---|---|
| May 31, 1:15 PM CDT | HAIL 0.88 | 6 Se Katy, TX | NICKEL SIZED HAIL REPORTED NEAR CINCO RANCH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.0 hours before the alert went out and 250 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
- 2548 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 650 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
821 WFUS54 KHGX 311801 TORHGX TXC157-201-311830- /O.NEW.KHGX.TO.W.0034.120531T1801Z-120531T1830Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 101 PM CDT THU MAY 31 2012 THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A * TORNADO WARNING FOR... EXTREME NORTH CENTRAL FORT BEND COUNTY IN TEXAS... EXTREME SOUTHWESTERN HARRIS COUNTY IN TEXAS... * UNTIL 130 PM CDT * AT 1259 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR KATY...AND MOVING SOUTHEAST AT 15 MPH. SPOTTERS ARE REPORTING A FUNNEL AT GRAND PARKWAY AT FM 1253. TAKE COVER NOW. * LOCATIONS IMPACTED INCLUDE... MISSION BEND AND PECAN GROVE. 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 IN A MOBILE HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 2976 9582 2976 9556 2959 9571 2972 9585 TIME...MOT...LOC 1759Z 301DEG 15KT 2972 9581 $$
2 follow-up statements
131 WWUS54 KHGX 311807 SVSHGX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 107 PM CDT THU MAY 31 2012 TXC157-201-311830- /O.CON.KHGX.TO.W.0034.000000T0000Z-120531T1830Z/ FORT BEND TX-HARRIS TX- 107 PM CDT THU MAY 31 2012 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR EXTREME NORTH CENTRAL FORT BEND AND EXTREME SOUTHWESTERN HARRIS COUNTIES... AT 104 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. A TORNADO MAY DEVELOP AT ANY TIME. THIS DANGEROUS STORM WAS LOCATED NEAR PECAN GROVE...OR 6 MILES SOUTH OF KATY...MOVING SOUTHEAST AT 15 MPH. LOCATIONS IMPACTED INCLUDE... MISSION BEND AND PECAN GROVE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 2974 9578 2976 9556 2959 9571 2968 9580 TIME...MOT...LOC 1804Z 301DEG 15KT 2971 9579 $$
029 WWUS54 KHGX 311829 SVSHGX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 129 PM CDT THU MAY 31 2012 TXC157-201-311840- /O.EXP.KHGX.TO.W.0034.000000T0000Z-120531T1830Z/ FORT BEND TX-HARRIS TX- 129 PM CDT THU MAY 31 2012 ...THE TORNADO WARNING FOR EXTREME NORTH CENTRAL FORT BEND AND EXTREME SOUTHWESTERN HARRIS COUNTIES WILL EXPIRE AT 130 PM CDT... THE STORM WHICH PROMPTED THE WARNING IS NO LONGER SHOWING SIGNS OF ROTATION. REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT UNTIL 145 PM FOR HAIL AND DAMAGING WINDS. LAT...LON 2974 9578 2976 9556 2959 9571 2968 9580 TIME...MOT...LOC 1828Z 301DEG 15KT 2971 9579 $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 9:41 AM CDT | Special Weather Statement | HGX | Liberty | 34 min |
| May 31, 11:27 AM CDT | Special Weather Statement | HGX | Chambers | 48 min |
| May 31, 12:56 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend, Harris, Waller | 49 min |
| May 31, 1:10 PM CDT | Special Weather Statement | HGX | Colorado | 50 min |
| May 31, 1:19 PM CDT | Special Weather Statement | HGX | Galveston | 41 min |
| May 31, 1:22 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Colorado, Fort Bend, Wharton | 23 min |
| May 31, 1:32 PM CDT | Special Marine Warning | HGX | 58 min | |
| May 31, 1:42 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Fort Bend, Wharton | 33 min |
| May 31, 1:47 PM CDT | Special Weather Statement | HGX | Brazoria, Jackson, Matagorda, Wharton | 88 min |
| May 31, 2:15 PM CDT | Special Marine Warning | HGX | 2 hr | |
| May 31, 2:28 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Matagorda | 62 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.