Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Houston/Galveston, TX

April 3, 2012Houston County, Texas

NWS Houston/Galveston, TX issued this special weather statement at Apr 3, 2012, 10:48 PM CDT for Houston County, Texas. It was in force for 57 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 3, 2012, 10:48 PM CDT (03:48 UTC)
Expired: Apr 3, 2012, 11:45 PM CDT
In force: 57 min
Issued by: NWS Houston/Galveston, TX

County Houston County, TX

The radar

The Shreveport radar (KSHV), 167 km from the middle of the area, began a volume at 03:51 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 (KSHV), launched 00:00Z, 3.8 hours before the alert went out and 175 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2361 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1056 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 3, 10:04 PM CDT, 44 minutes earlier.

Area forecast discussion, Apr 3, 10:04 PM CDT, 44 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Apr 3, 8:48 PM CDT, 2 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
848 PM CDT TUE APR 3 2012

TXZ163-164-176>179-195>200-210>214-226-227-235>238-050200-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-
MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-
WHARTON-
848 PM CDT TUE APR 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT

A SLOW MOVING LINE OF SHOWERS AND THUNDERSTORMS WILL MOVE THROUGH
SOUTHEAST TEXAS OVERNIGHT. SOME OF THE STORMS COULD PRODUCE HAIL.
WIND DAMAGE IS A SECONDARY THREAT. IN ADDITION TO THE SEVERE
POTENTIAL...TRAINING STRONG CELLS WILL OCCUR AND VERY LOCALIZED 3
INCH RAINFALL ACCUMULATIONS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

ISOLATED TO SCATTERED THUNDERSTORMS MAY LINGER INTO
WEDNESDAY....MAINLY ALONG THE COAST AND OFFSHORE. OTHERWISE NO
HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED TONIGHT.

GMZ330-335-350-355-370-375-050200-
GALVESTON BAY-MATAGORDA BAY-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM-
WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-
848 PM CDT TUE APR 3 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT

A LINE OF STRONG THUNDERSTORMS MOVING INTO SOUTHEAST TEXAS THIS
EVENING WILL CONTINUE TO BE MONITORED. THIS LINE IS EXPECTED TO
WEAKEN AS IT APPROACHES THE COAST LATE TONIGHT. WE WILL CONTINUE
TO MONITOR THIS SITUATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

REMNANT SHOWERS AND THUNDERSTORMS ARE POSSIBLE WEDNESDAY. OTHERWISE...NO
HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

In the hours before

Special weather statement, Apr 3, 7:15 PM CDT, 3 hours 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
715 PM CDT TUE APR 3 2012

TXZ195-196-040115-
BRAZOS-BURLESON-
715 PM CDT TUE APR 3 2012

...STRONG STORMS APPROACHING THE BRAZOS VALLEY...

AT 706 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM ROUGHLY CALVERT TO
ROCKDALE TO ELGIN...MOVING EAST SOUTHEAST AT 20 MPH. THESE STORMS
ARE CURRENTLY PULSING UP AND DOWN IN INTENSITY AND BURLESON AND
BRAZOS COUNTIES ARE BEING MONITORED FOR A POSSIBLE SEVERE
THUNDERSTORM WARNING. HAIL WILL BE THE PRIMARY WEATHER THREAT.
LOCALLY HEAVY DOWNPOURS AND LIGHTNING ARE ALSO POSSIBLE. ANY OUTDOOR
ACTIVITIES ONGOING IN BURLESON AND BRAZOS COUNTIES SHOULD BE
MONITORING THE WEATHER.

LOCATIONS IN THE PATH OF THESE STORMS
INCLUDE...WELLBORN...KURTEN...CHRIESMAN...WIXON
VALLEY...SNOOK...COLLEGE STATION...SOMERVILLE...CALDWELL AND BRYAN.

SEEK SHELTER IN A STURDY STRUCTURE OR NON-CONVERTIBLE AUTOMOBILE
UNTIL THESE STORMS HAVE PASSED.

LAT...LON 3074 9662 3070 9656 3074 9647 3091 9636
      3075 9621 3059 9620 3042 9628 3029 9666
      3031 9669 3031 9674 3038 9679 3047 9691
      3053 9692 3055 9696 3056 9697
TIME...MOT...LOC 0010Z 292DEG 17KT 3107 9663 3085 9668
          3079 9682 3029 9720

Special weather statement, Apr 3, 8:00 PM CDT, 2 hours 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
800 PM CDT TUE APR 3 2012

TXZ163-176-196-198-040200-
BRAZOS-GRIMES-HOUSTON-MADISON-
800 PM CDT TUE APR 3 2012

...LINE OF STORMS MOVING INTO SOUTHEAST TEXAS...

AT 754 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 32 MILES NORTH OF
CROCKETT TO 28 MILES WEST OF MADISONVILLE...MOVING EAST SOUTHEAST AT
15 MPH. THESE STORMS SHOULD BE ALONG A MADISONVILLE TO CROCKETT LINE
BY 9 PM. SOME CELLS WITHIN THE LINE MAY PULSE UP TO SEVERE LEVELS
WITH HAIL BEING THE PRIMARY WEATHER THREAT. LOCALIZED TRAINING HEAVY
RAINFALL AND LIGHTNING ARE ALSO A GOOD POSSIBILITY.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...WECHES...NORTH
ZULCH...KURTEN...IOLA...AUSTONIO...MIDWAY...MADISONVILLE...LATEXO...
KENNARD AND CROCKETT.

GUSTY WINDS MAY CAUSE UNSECURED SMALL OBJECTS SUCH AS TRASH CANS TO
BLOW AROUND. SEEK SHELTER IN A STURDY STRUCTURE OR NON-CONVERTIBLE
AUTOMOBILE UNTIL THESE STORMS HAVE PASSED.

LAT...LON 3158 9526 3159 9517 3152 9509 3147 9509
      3145 9500 3141 9500 3068 9619 3091 9636
      3107 9605 3110 9577 3114 9578 3116 9574
      3127 9573 3133 9566 3145 9572 3146 9575
      3151 9574 3155 9562 3160 9527
TIME...MOT...LOC 0058Z 279DEG 16KT 3177 9554 3092 9636

Special weather statement, Apr 3, 8:09 PM CDT, 2 hours 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
809 PM CDT TUE APR 3 2012

TXZ195>198-040230-
BRAZOS-BURLESON-GRIMES-WASHINGTON-
809 PM CDT TUE APR 3 2012

...LINE OF STRONG THUNDERSTORMS MOVING INTO THE REGION FROM THE
NORTHWEST...

AT 800 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 20 MILES NORTH OF
BRYAN TO 20 MILES SOUTHWEST OF CALDWELL...MOVING EAST SOUTHEAST AT
15 MPH.

HAIL UP TO ONE HALF INCH IN DIAMETER...FREQUENT CLOUD TO GROUND
LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...WELLBORN...QUARRY...
MILLICAN...KURTEN...INDEPENDENCE...IOLA...CHRIESMAN...CARLOS...WIXON
VALLEY...SNOOK...COLLEGE STATION...CALDWELL...BURTON AND BRYAN.

AVOID TALL OUTDOOR OBJECTS THAT CAN ATTRACT LIGHTNING. IF YOU ARE
OUTDOORS AND HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.  SEEK SHELTER IN A STURDY STRUCTURE OR NON-CONVERTIBLE
AUTOMOBILE UNTIL THESE STORMS HAVE PASSED.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1 AM FOR THE WARNED
AREA.

LAT...LON 3071 9668 3074 9660 3070 9656 3074 9647
      3093 9634 3075 9604 3038 9611 3006 9663
      3014 9666 3014 9677 3016 9680 3020 9675
      3024 9675 3029 9666 3032 9675 3038 9679
      3047 9691 3052 9691
TIME...MOT...LOC 0107Z 261DEG 19KT 3103 9622 3039 9697

Local storm report, Apr 3, 10:08 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1008 PM CDT TUE APR 03 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0908 PM     HAIL             3 W GRAPELAND           31.49N 95.53W
04/03/2012  E0.75 INCH       HOUSTON            TX   LAW ENFORCEMENT

0935 PM     HAIL             COLLEGE STATION         30.60N 96.31W
04/03/2012  E0.75 INCH       BRAZOS             TX   PUBLIC

&&

47

Special weather statement, Apr 3, 10:48 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1048 PM CDT TUE APR 3 2012

TXZ163-040445-
HOUSTON-
1048 PM CDT TUE APR 3 2012

...STRONG STORM IN HOUSTON COUNTY...

AT 1042 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 9 MILES SOUTHWEST OF CROCKETT...MOVING NORTHEAST
AT 40 MPH.

ONE HALF INCH DIAMETER HAIL...ARE POSSIBLE WITH THIS STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...WECHES...LOVELADY...
KENNARD AND CROCKETT.

SEEK SHELTER IN A STURDY STRUCTURE OR NON-CONVERTIBLE AUTOMOBILE
UNTIL THIS STORM HAS PASSED.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 1 AM FOR THE WARNED
AREA.

LAT...LON 3155 9514 3152 9509 3148 9510 3147 9506
      3145 9504 3145 9501 3142 9500 3140 9496
      3138 9496 3109 9550 3121 9563 3158 9524
      3159 9517
TIME...MOT...LOC 0347Z 231DEG 34KT 3123 9547

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 7:15 PM CDT	Special Weather Statement	HGX	Brazos, Burleson	60 min
Apr 3, 8:00 PM CDT	Special Weather Statement	HGX	Houston, Madison	60 min
Apr 3, 8:09 PM CDT	Special Weather Statement	HGX	Brazos, Burleson, Washington	81 min
Apr 3, 8:51 PM CDT	Severe Thunderstorm Warning	HGX	Houston	39 min
Apr 3, 9:12 PM CDT	Severe Thunderstorm Warning	HGX	Brazos, Grimes, Madison	48 min
Apr 3, 9:28 PM CDT	Severe Thunderstorm Warning	HGX	Houston	47 min
Apr 3, 9:57 PM CDT	Severe Thunderstorm Warning	HGX	Brazos, Grimes, Madison, Walker	48 min
Apr 3, 10:14 PM CDT	Areal Flood Advisory	HGX	Houston, Madison	2 hr
Apr 3, 10:50 PM CDT	Special Weather Statement	HGX	Madison	55 min
Apr 3, 11:35 PM CDT	Special Weather Statement	HGX	Trinity	55 min
Apr 3, 11:53 PM CDT	Special Weather Statement	HGX	Walker	52 min
Apr 4, 12:29 AM CDT	Severe Thunderstorm Warning	HGX	Polk, Trinity	46 min
Apr 4, 12:34 AM CDT	Special Weather Statement	HGX	Montgomery	56 min
Apr 4, 12:44 AM CDT	Severe Thunderstorm Warning	HGX	Montgomery, Walker	46 min
Apr 4, 1:32 AM CDT	Special Weather Statement	HGX	Montgomery, San Jacinto	58 min
Apr 4, 1:52 AM CDT	Severe Thunderstorm Warning	HGX	Montgomery, San Jacinto, Walker	38 min
Apr 4, 2:31 AM CDT	Severe Thunderstorm Warning	HGX	Liberty, Polk, San Jacinto	59 min
Apr 4, 8:49 AM CDT	Special Marine Warning	HGX		56 min
Apr 4, 11:09 AM CDT	Special Weather Statement	HGX	Harris	51 min
Apr 4, 11:37 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Harris	38 min
Apr 4, 12:17 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Galveston, Harris	43 min
Apr 4, 12:59 PM CDT	Areal Flood Advisory	HGX	Brazoria, Fort Bend, Galveston	61 min
Apr 4, 1:02 PM CDT	Tornado Warning	HGX	Brazoria, Galveston	43 min
Apr 4, 1:20 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria	40 min
Apr 4, 1:35 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Galveston	40 min
Apr 4, 1:43 PM CDT	Special Marine Warning	HGX		92 min
Apr 4, 1:59 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Matagorda	46 min
Apr 4, 2:12 PM CDT	Severe Thunderstorm Warning	HGX	Galveston	25 min
Apr 4, 2:17 PM CDT	Special Marine Warning	HGX		88 min
Apr 4, 2:42 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Matagorda	48 min
Apr 4, 3:00 PM CDT	Special Marine Warning	HGX		90 min
Apr 4, 3:23 PM CDT	Severe Thunderstorm Warning	HGX	Jackson, Matagorda	52 min
Apr 4, 3:30 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Galveston, Matagorda	45 min
Apr 4, 3:35 PM CDT	Areal Flood Advisory	HGX	Brazoria, Matagorda	115 min
Apr 4, 3:46 PM CDT	Special Marine Warning	HGX		89 min
Apr 4, 4:13 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Jackson, Matagorda	62 min
Apr 4, 4:23 PM CDT	Special Marine Warning	HGX		82 min
Apr 4, 4:51 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Jackson, Matagorda, Wharton	54 min
Apr 4, 5:07 PM CDT	Severe Thunderstorm Warning	HGX	Jackson, Matagorda, Wharton	53 min
Apr 4, 5:22 PM CDT	Areal Flood Advisory	HGX	Brazoria, Fort Bend, Jackson, Matagorda, Wharton	80 min
Apr 4, 5:29 PM CDT	Special Marine Warning	HGX		91 min
Apr 4, 5:41 PM CDT	Special Marine Warning	HGX		32 min
Apr 4, 5:54 PM CDT	Special Weather Statement	HGX	Fort Bend	51 min
Apr 4, 6:27 PM CDT	Special Marine Warning	HGX		93 min

Nearby

Special Weather Statements in Texas, 2012 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.