Alert archive / Texas / Tornado Warnings in 2010
Tornado Warning 21, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this tornado warning at Sep 7, 2010, 10:00 AM CDT for Waller County, Washington County, Texas. It was in force for 30 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
- Sep 7, 2010, 10:00 AM CDT (15:00 UTC)
- Expired
- Sep 7, 2010, 10:30 AM CDT
- In force
- 30 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Waller County, TX, Washington County, TX
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 7, 4:37 AM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 3.0 hours before the alert went out and 282 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
- 2859 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 471 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.7
The text
As transmitted, in the capitals the NWS used until 2016.
640
WFUS54 KHGX 071500
TORHGX
TXC473-477-071530-
/O.NEW.KHGX.TO.W.0021.100907T1500Z-100907T1530Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1000 AM CDT TUE SEP 7 2010
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* TORNADO WARNING FOR...
NORTHWESTERN WALLER COUNTY IN SOUTHEAST TEXAS...
NORTHEASTERN WASHINGTON COUNTY IN SOUTHEAST TEXAS...
* UNTIL 1030 AM CDT
* AT 957 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO THIS TORNADO
WAS LOCATED NEAR HEMPSTEAD... MOVING NORTHWEST AT 35 MPH.
* LOCATIONS IN THE TORNADO WARNING INCLUDE BUT ARE NOT LIMITED TO
WASHINGTON AND PINE ISLAND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH IS IN EFFECT UNTIL 1 PM FOR THE WARNED AREA.
&&
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 3032 9632 3036 9614 3032 9613 3031 9611
3027 9609 3025 9608 3023 9611 3023 9607
3006 9600 3002 9608
TIME...MOT...LOC 1459Z 152DEG 33KT 3010 9608
$$2 follow-up statements
344
WWUS54 KHGX 071520
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1020 AM CDT TUE SEP 7 2010
TXC473-071529-
/O.CAN.KHGX.TO.W.0021.000000T0000Z-100907T1530Z/
WALLER TX-
1020 AM CDT TUE SEP 7 2010
...THE TORNADO WARNING FOR WALLER COUNTY IS CANCELLED...
THE THUNDERSTORM WHICH PROMPTED THE TORNADO HAS MOVED OUT
OF THE AREA. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1 PM.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3036 9615 3032 9613 3031 9611 3024 9609
3024 9611 3021 9611 3022 9613 3021 9614
3022 9615 3020 9618 3018 9618 3032 9631
TIME...MOT...LOC 1519Z 152DEG 33KT 3026 9616
$$
TXC477-071530-
/O.CON.KHGX.TO.W.0021.000000T0000Z-100907T1530Z/
WASHINGTON TX-
1020 AM CDT TUE SEP 7 2010
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM CDT FOR
WASHINGTON COUNTY...
AT 1015 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO. THIS TORNADO WAS LOCATED 7 MILES SOUTH OF WASHINGTON...OR
10 MILES NORTHWEST OF HEMPSTEAD...AND MOVING NORTHWEST AT 40 MPH.
* THE TORNADO WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF THE
INDICATED COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH IS IN EFFECT UNTIL 1 PM FOR THE WARNED AREA.
&&
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 3036 9615 3032 9613 3031 9611 3024 9609
3024 9611 3021 9611 3022 9613 3021 9614
3022 9615 3020 9618 3018 9618 3032 9631
TIME...MOT...LOC 1519Z 152DEG 33KT 3026 9616
$$216
WWUS54 KHGX 071533
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1033 AM CDT TUE SEP 7 2010
TXC477-071543-
/O.EXP.KHGX.TO.W.0021.000000T0000Z-100907T1530Z/
WASHINGTON TX-
1033 AM CDT TUE SEP 7 2010
...THE TORNADO WARNING FOR WASHINGTON COUNTY HAS BEEN ALLOWED TO
EXPIRE...
A TORNADO WATCH IS IN EFFECT UNTIL 1 PM FOR THE WARNED AREA.
PLEASE REPORT SEVERE WEATHER TO THE COUNTY SHERIFF...LOCAL POLICE...
OR DEPARTMENT OF PUBLIC SAFETY AND ASK THEM TO RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE.
LAT...LON 3036 9615 3032 9613 3031 9611 3024 9609
3024 9611 3021 9611 3022 9613 3021 9614
3022 9615 3020 9618 3018 9618 3032 9631
TIME...MOT...LOC 1520Z 152DEG 33KT 3027 9617
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 9:20 PM CDT | Coastal Flood Advisory | HGX | Brazoria, Chambers, Galveston, Matagorda | 7 hr |
| Sep 7, 6:12 AM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 6:30 AM CDT | Areal Flood Advisory | HGX | Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Sep 7, 7:55 AM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 8:55 AM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 3 hr |
| Sep 7, 9:28 AM CDT | Tornado Warning | HGX | Fort Bend, Waller | 32 min |
| Sep 7, 9:53 AM CDT | Special Marine Warning | HGX | 112 min | |
| Sep 7, 10:52 AM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson | 23 min |
| Sep 7, 11:04 AM CDT | Tornado Warning | HGX | Brazos | 26 min |
| Sep 7, 11:36 AM CDT | Special Marine Warning | HGX | 114 min | |
| Sep 7, 11:42 AM CDT | Areal Flood Advisory | HGX | Harris | 63 min |
| Sep 7, 11:45 AM CDT | Coastal Flood Advisory | HGX | Brazoria, Galveston, Matagorda | 17 hr |
| Sep 7, 11:52 AM CDT | Severe Thunderstorm Warning | HGX | Matagorda | 24 min |
| Sep 7, 11:58 AM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 2 hr |
| Sep 7, 12:38 PM CDT | Flash Flood Warning | HGX | Harris | 3 hr |
| Sep 7, 12:51 PM CDT | Special Marine Warning | HGX | 114 min | |
| Sep 7, 12:59 PM CDT | Special Weather Statement | HGX | Harris | 31 min |
| Sep 7, 1:26 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 1:32 PM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery, San Jacinto, Walker | 43 min |
| Sep 7, 1:53 PM CDT | Flash Flood Warning | HGX | Colorado, Jackson, Matagorda, Wharton | 112 min |
| Sep 7, 2:43 PM CDT | Special Marine Warning | HGX | 2 hr | |
| Sep 7, 2:52 PM CDT | Areal Flood Advisory | HGX | Chambers, Harris, Liberty | 3 hr |
| Sep 7, 3:16 PM CDT | Special Weather Statement | HGX | Chambers, Liberty | 59 min |
| Sep 7, 3:46 PM CDT | Flash Flood Warning | HGX | Brazoria, Fort Bend, Matagorda, Wharton | 59 min |
| Sep 7, 4:43 PM CDT | Special Marine Warning | HGX | 47 min |
Nearby
Tornado Warnings in Texas, 2010Every tornado warning in 2010Tornadoes in 2010
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.