Alert archive / Texas / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 26, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 9, 2014, 3:54 PM CDT for Houston County, Trinity County, Walker County, Texas. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 9, 2014, 3:54 PM CDT (20:54 UTC)
- Expired
- May 9, 2014, 4:30 PM CDT
- In force
- 36 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
Counties Houston County, TX, Trinity County, TX, Walker County, TX
The radar
The Houston radar (KHGX), 178 km from the middle of the area, began a volume at 20:55 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
Shreveport, LA (KBAD), launched 12:00Z, 8.9 hours before the alert went out and 221 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
- 601 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 511 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 316 m²/s²
- 0-3 km storm-relative helicity
- 378 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 9, 3:48 PM CDT, 6 minutes earlier.
Area forecast discussion, May 9, 3:48 PM CDT, 6 minutes before
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</html>Hazardous weather outlook, May 9, 3:42 AM CDT, 12 hours 12 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 342 AM CDT FRI MAY 9 2014 TXZ164-178-179-199-200-213-214-226-227-235>238-100845- BRAZORIA-CHAMBERS-FORT BEND-GALVESTON-HARRIS-JACKSON-LIBERTY- MATAGORDA-MONTGOMERY-POLK-SAN JACINTO-TRINITY-WHARTON- 342 AM CDT FRI MAY 9 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A STRONG COLD FRONT WILL CROSS SOUTHEAST TEXAS ON TUESDAY. THE FRONT WILL TRIGGER SHOWERS AND THUNDERSTORMS. SOME OF THE STORMS COULD BECOME STRONG WITH GUSTY WINDS AND ALSO PRODUCE LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. TXZ163-176-177-195>198-210>212-100845- AUSTIN-BRAZOS-BURLESON-COLORADO-GRIMES-HOUSTON-MADISON-WALKER- WALLER-WASHINGTON- 342 AM CDT FRI MAY 9 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT A STRONG UPPER LEVEL DISTURBANCE WILL APPROACH SOUTHEAST TEXAS THIS AFTERNOON. THIS FEATURE WILL TRIGGER A PERIOD OF SHOWERS AND THUNDERSTORMS. A FEW OF THE STORMS COULD BECOME STRONG TO SEVERE WITH DAMAGING WINDS AND LARGE HAIL AS THE PRIMARY SEVERE WEATHER HAZARD. THE BEST CHANCE FOR SEVERE WEATHER WILL OCCUR BETWEEN 11 AM AND 6 PM. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A STRONG COLD FRONT WILL CROSS SOUTHEAST TEXAS ON TUESDAY. THE FRONT WILL TRIGGER SHOWERS AND THUNDERSTORMS. SOME OF THE STORMS COULD BECOME STRONG WITH GUSTY WINDS AND ALSO PRODUCE LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
In the hours before
Special weather statement, May 9, 2:39 PM CDT, 1 hour 15 minutes before
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</html>Special weather statement, May 9, 3:02 PM CDT, 52 minutes before
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</html>Special weather statement, May 9, 3:41 PM CDT, 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 341 PM CDT FRI MAY 9 2014 TXZ163-164-092130- TRINITY TX-HOUSTON TX- 341 PM CDT FRI MAY 9 2014 ...STRONG THUNDERSTORM MOVING THROUGH TRINITY AND HOUSTON COUNTIES... AT 338 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR LOVELADY...OR 18 MILES SOUTH OF CROCKETT...MOVING NORTH AT 20 MPH. HEAVY DOWNPOURS...FREQUENT LIGHTNING...AND HALF INCH HAIL WILL BE POSSIBLE WITH THIS STORM...WITH WIND GUSTS OF 30 TO 40 MPH. LOCATIONS IMPACTED INCLUDE... CROCKETT...LOVELADY...KENNARD...LATEXO AND PENNINGTON. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED POOR DRAINAGE FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 3099 9528 3099 9541 3137 9549 3136 9517 TIME...MOT...LOC 2038Z 181DEG 16KT 3107 9535 46
Special weather statement, May 9, 3:48 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
348 PM CDT FRI MAY 9 2014
TXZ196>199-212-092130-
GRIMES TX-WALLER TX-BRAZOS TX-WASHINGTON TX-MONTGOMERY TX-
348 PM CDT FRI MAY 9 2014
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN WASHINGTON...
SOUTHEASTERN BRAZOS...WESTERN MONTGOMERY...NORTHWESTERN WALLER AND
SOUTHERN GRIMES COUNTIES UNTIL 430 PM CDT...
AT 348 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
WASHINGTON...OR 11 MILES SOUTHWEST OF NAVASOTA...MOVING NORTHEAST AT
15 MPH.
HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM. RAINFALL RATES OF 2 INCHES PER HOUR WILL ACCOMPANY THE
STORMS.
LOCATIONS IMPACTED INCLUDE...
NAVASOTA...WASHINGTON...ANDERSON AND PLANTERSVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 3013 9615 3024 9632 3056 9611 3051 9591
3037 9578
TIME...MOT...LOC 2048Z 217DEG 15KT 3025 9619
!KP!The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 2:39 PM CDT | Special Weather Statement | HGX | Brazos, Grimes, Walker, Washington | 51 min |
| May 9, 3:02 PM CDT | Special Weather Statement | HGX | Houston | 43 min |
| May 9, 3:41 PM CDT | Special Weather Statement | HGX | Houston | 49 min |
| May 9, 3:48 PM CDT | Special Weather Statement | HGX | Grimes | 42 min |
| May 9, 3:52 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Montgomery, Waller, Washington | 23 min |
| May 9, 4:12 PM CDT | Areal Flood Advisory | HGX | Brazos, Grimes, Waller, Washington | 2 hr |
| May 9, 4:48 PM CDT | Special Weather Statement | HGX | Montgomery, Waller | 72 min |
| May 9, 5:10 PM CDT | Special Weather Statement | HGX | Houston | 50 min |
| May 9, 5:10 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery | 50 min |
| May 9, 5:40 PM CDT | Special Weather Statement | HGX | Harris | 50 min |
| May 9, 5:44 PM CDT | Special Marine Warning | HGX | 91 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; radar from the NEXRAD Level II archive.