Alert archive / Texas / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 21, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 28, 2014, 3:04 AM CDT for Houston County, Texas. It was in force for 56 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
- Apr 28, 2014, 3:04 AM CDT (08:04 UTC)
- Expired
- Apr 28, 2014, 4:00 AM CDT
- In force
- 56 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
County Houston 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 |
|---|---|---|---|
| Apr 27, 11:08 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KBAD), launched 00:00Z, 8.1 hours before the alert went out and 197 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
- 1893 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1351 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
036
WUUS54 KHGX 280804
SVRHGX
TXC225-280900-
/O.NEW.KHGX.SV.W.0021.140428T0804Z-140428T0900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
304 AM CDT MON APR 28 2014
THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN HOUSTON COUNTY IN SOUTHEAST TEXAS...
* UNTIL 400 AM CDT
* AT 301 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED 5 MILES WEST NORTHWEST OF
GRAPELAND...OR 14 MILES NORTH OF CROCKETT...AND MOVING EAST
SOUTHEAST AT 40 MPH. WE ARE ALSO WATCHING ANOTHER STRONG CELL
CURRENTLY JUST NORTHEAST OF CENTERVILLE THAT WILL BE MOVING INTO
NORTHERN HOUSTON COUNTY BEFORE 330 AM.
* LOCATIONS IMPACTED INCLUDE...
CROCKETT...GRAPELAND...LATEXO...HOUSTON COUNTY LAKE AND WECHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
SOUTHEASTERN TEXAS.
LAT...LON 3157 9522 3159 9517 3156 9514 3154 9514
3152 9510 3147 9510 3147 9506 3118 9574
3127 9573 3132 9566 3136 9566 3142 9571
3146 9571 3146 9575 3147 9572 3149 9574
3151 9574 3155 9561 3159 9529
TIME...MOT...LOC 0801Z 257DEG 37KT 3152 9553
$$1 follow-up statement
085
WWUS54 KHGX 280825
SVSHGX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
325 AM CDT MON APR 28 2014
TXC225-280900-
/O.CON.KHGX.SV.W.0021.000000T0000Z-140428T0900Z/
HOUSTON TX-
325 AM CDT MON APR 28 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR NORTHERN HOUSTON COUNTY...
AT 323 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED OVER HOUSTON COUNTY LAKE...MOVING EAST
AT 50 MPH. THE STORM PREVIOUSLY NEAR GRAPELAND HAS MOVED NORTHEAST
AND IS NEAR WECHES. IT HAS SLIGHTLY WEAKENED BUT STILL CAPABLE OF
PRODUCING HAIL AND DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
CROCKETT...GRAPELAND...LATEXO AND WECHES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE...SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
SOUTHEASTERN TEXAS.
LAT...LON 3157 9522 3159 9517 3156 9514 3154 9514
3152 9510 3147 9510 3147 9506 3118 9574
3127 9573 3132 9566 3136 9566 3142 9571
3146 9571 3146 9575 3147 9572 3149 9574
3151 9574 3155 9561 3159 9529
TIME...MOT...LOC 0823Z 252DEG 45KT 3144 9546
$$The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 8:18 PM CDT | Severe Thunderstorm Warning | HGX | Washington | 27 min |
| Apr 27, 8:44 PM CDT | Severe Thunderstorm Warning | HGX | Washington | 31 min |
| Apr 27, 9:16 PM CDT | Special Weather Statement | HGX | Waller | 29 min |
| Apr 28, 1:33 AM CDT | Special Weather Statement | HGX | Houston | 42 min |
| Apr 28, 2:52 AM CDT | Special Weather Statement | HGX | Houston, Madison | 53 min |
| Apr 28, 3:58 AM CDT | Severe Thunderstorm Warning | HGX | Houston | 47 min |
| Apr 28, 4:20 AM CDT | Special Weather Statement | HGX | Washington | 40 min |
| Apr 28, 4:27 AM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazos, Grimes, Harris, Montgomery, Waller and 1 more | 48 min |
| Apr 28, 4:56 AM CDT | Severe Thunderstorm Warning | HGX | Houston, Madison, Polk, Trinity, Walker | 49 min |
| Apr 28, 4:58 AM CDT | Special Weather Statement | HGX | Walker | 47 min |
| Apr 28, 5:57 AM CDT | Special Weather Statement | HGX | Polk | 33 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2014Every severe thunderstorm warning in 2014
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.