Alert archive / Texas / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 27, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 9, 2014, 5:10 PM CDT for Montgomery County, Texas. It was in force for 50 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, 5:10 PM CDT (22:10 UTC)
- Expired
- May 9, 2014, 6:00 PM CDT
- In force
- 50 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
County Montgomery County, TX
The radar
The Houston radar (KHGX), 101 km from the middle of the area, began a volume at 22:13 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, 10.2 hours before the alert went out and 294 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, 1 hour 22 minutes earlier.
Area forecast discussion, May 9, 3:48 PM CDT, 1 hour 22 minutes before
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</html>Hazardous weather outlook, May 9, 3:42 AM CDT, 13 hours 28 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, 3:02 PM CDT, 2 hours 8 minutes before
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</html>Special weather statement, May 9, 3:41 PM CDT, 1 hour 29 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, 1 hour 22 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!Local storm report, May 9, 4:00 PM CDT, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
400 PM CDT FRI MAY 09 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0350 PM HAIL 5 SW NAVASOTA 30.34N 96.15W
05/09/2014 M1.00 INCH BRAZOS TX LAW ENFORCEMENT
QUARTER SIZED HAIL ON HIGHWAY 105 AT THE WASHINGTON
GRIMES COUNTY LINE.
&&
EVENT NUMBER HGX1400092
DHSpecial weather statement, May 9, 4:48 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
448 PM CDT FRI MAY 9 2014
TXZ177-178-198-199-212-213-092300-
GRIMES TX-HARRIS TX-SAN JACINTO TX-WALKER TX-WALLER TX-MONTGOMERY TX-
448 PM CDT FRI MAY 9 2014
...SIGNIFICANT WEATHER ADVISORY FOR MONTGOMERY...NORTHWESTERN
HARRIS...CENTRAL WALLER...SOUTHEASTERN WALKER...SOUTHEASTERN GRIMES
AND SOUTHWESTERN SAN JACINTO COUNTIES UNTIL 600 PM CDT...
AT 445 PM CDT...DOPPLER RADAR WAS TRACKING A CLUSTER OF STRONG
THUNDERSTORMS FROM NEAR LAKE CONROE TO WALLER...MOVING EAST AT 25
MPH.
HALF INCH HAIL AND WINDS IN EXCESS OF 45 MPH WILL BE POSSIBLE WITH
THE STRONGER STORMS.
LOCATIONS IMPACTED INCLUDE...
CONROE...TOMBALL...HEMPSTEAD...WILLIS...PRAIRIE VIEW...PINEHURST...
SPRING...THE WOODLANDS...HOCKLEY...OAK RIDGE NORTH...WALLER...
PANORAMA VILLAGE...SHENANDOAH...SPLENDORA...MAGNOLIA...CUT AND
SHOOT...NEW WAVERLY...PINE ISLAND...MONTGOMERY AND STAGECOACH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO SOME FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 2986 9603 3013 9608 3028 9578 3054 9568
3071 9527 3024 9515 2992 9552
TIME...MOT...LOC 2145Z 255DEG 51KT 3034 9554
LWSpecial weather statement, May 9, 5:10 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
510 PM CDT FRI MAY 9 2014
TXZ163-092300-
HOUSTON TX-
510 PM CDT FRI MAY 9 2014
...SIGNIFICANT WEATHER ADVISORY FOR HOUSTON COUNTY UNTIL 600 PM
CDT...
AT 508 PM CDT...DOPPLER RADAR WAS TRACKING 2 STRONG THUNDERSTORMS.
ONE WAS NEAR CROCKETT...THE OTHER 5 MILES NORTHWEST OF GRAPELAND.
THESE STORMS WERE JUST DEVELOPING EXPANDING. LITTLE MOVEMENT WAS
NOTED.
HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
CROCKETT...GRAPELAND...LOVELADY...KENNARD AND LATEXO.
LAT...LON 3132 9512 3107 9544 3130 9568 3132 9567
3132 9566 3136 9566 3142 9571 3146 9571
3146 9575 3147 9572 3150 9574 3152 9565
3155 9564 3159 9532
TIME...MOT...LOC 2208Z 306DEG 11KT 3130 9546The 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, 3:54 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Trinity, Walker | 36 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, 5:40 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.