Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 90, NWS Houston/Galveston, TX

June 6, 20134 counties in Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Jun 6, 2013, 6:12 PM CDT for 4 counties in Texas. It was in force for 33 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
Jun 6, 2013, 6:12 PM CDT (23:12 UTC)
Expired
Jun 6, 2013, 6:45 PM CDT
In force
33 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon

Counties Chambers County, TX, Harris County, TX, Liberty County, TX, Montgomery County, TX

The radar

The Houston radar (KHGX), 59 km from the middle of the area, began a volume at 23:15 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 6, 2:28 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.2 hours before the alert went out and 183 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-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2013-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2370 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 2013-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2370 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
662 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
-29 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.0

Open this sounding in Storm Lab

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 Jun 6, 3:48 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jun 6, 3:48 PM CDT, 2 hours 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
348 PM CDT THU JUN 6 2013

.DISCUSSION...
QUITE A LOT OF BOUNDARIES TO CONTEND WITH THE AFTN/EVENING AS THE
FRONT SLOWLY MAKES ITS WAY INTO THE REGION AND OUTFLOWS/SEABREEZE
INTERACT IN THIS MOIST/UNSTABLE AIRMASS ALREADY OVER SE TX. NOT A
LOT OF CONFIDENCE WITH HOW FAR SOUTH THIS ACTIVITY WILL EXTEND AS
WE MOVE INTO THE PEAK HEATING HOURS BUT HARD TO ARGUE AGAINST THE
CURRENT WATCH CONFIG BASED ON ONGOING TRENDS.

MAIN CHANGE WITH THIS FCST PACKAGE WILL BE WITH THE NEXT FEW DAYS
IN THE WAKE OF THIS ACTIVITY. WITH LIGHT TO MODERATE N/NWLY WINDS
SETTING UP BEHIND THIS FRONT...SLIGHTLY DRIER (BUT NOT MUCH COOL-
ER) AIR SET TO MOVE INTO THE AREA TOMORROW. THIS SHOULD PUT A KI-
BOSH ON POPS ON FRI. THE RETURN OF ONSHORE WINDS COULD HERALD THE
POSSIBILITY OF A SLIGHTLY MORE ACTIVE SEABREEZE DURING THE AFTER-
NOON/EVENING HOURS OVER THE WEEKEND. EXTENDED FCSTS INDICATES THE
INCREASINGLY PROMINENCE OF THE UPPER LEVEL RIDGE NEXT WEEK. 41

&&

.MARINE...
ONSHORE WINDS ARE EXPECTED TO PERSIST INTO TONIGHT. THE MODELS
ARE PUSHING A WEAK FRONTAL BOUNDARY OFF THE COAST FRIDAY MORNING.
AFTER A BRIEF PERIOD OF VARIABLE TO WEAK OFFSHORE FLOW...DO
EXPECT SLIGHTLY STRONGER ONSHORE WINDS TO SET UP OVER THE WEEKEND.

40

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      69  89  67  91  71 /  40  10  10  10  10
HOUSTON (IAH)              71  91  71  91  72 /  50  20  10  20  10
GALVESTON (GLS)            76  88  76  87  77 /  30  20  10  10  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&
Hazardous weather outlook, Jun 6, 3:36 AM CDT, 14 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
336 AM CDT THU JUN 6 2013

GMZ330-335-TXZ163-164-176>179-195>200-210>214-226-227-235>238-
070845-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GALVESTON BAY-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-
MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-POLK-SAN JACINTO-
TRINITY-WALKER-WALLER-WASHINGTON-WHARTON-
336 AM CDT THU JUN 6 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
A COLD FRONT WILL MOVE DOWN INTO THE REGION TODAY BRINGING
SCATTERED SHOWERS AND THUNDERSTORMS. ISOLATED STRONG TO SEVERE
THUNDERSTORMS ARE POSSIBLE ALONG THE FRONTAL BOUNDARY THIS
MORNING AND EARLY AFTERNOON FOR AREAS NORTH OF A BRENHAM TO
COLDSPRING LINE. DURING THE AFTERNOON AND EVENING THE FRONT WILL
CONTINUE TO DRIFT SOUTH AND BECOME A FOCUS FOR FURTHER DEVELOPMENT
OF STORMS SOME WHICH MAY BE SEVERE. IN ADDITION THE THREAT OF
LOCALLY HEAVY RAINFALL WILL DEVELOP FROM AROUND COLUMBUS TO CONROE
TO LIBERTY. THE SEABREEZE SHOULD MOVE INLAND FROM THE COASTAL
COUNTIES LATE IN THE AFTERNOON AND EARLY EVENING COLLIDING WITH
THE FRONTAL BOUNDARY AND COULD FOCUS RAINS ALONG THE I-10 CORRIDOR
AND AREAS TO THE SOUTH.

THE PRIMARY THREAT OF SEVERE WEATHER WILL LIKELY BE HAIL THOUGH
GUSTY DAMAGING WINDS WILL BE POSSIBLE. WIDESPREAD RAINFALL OF ONE
QUARTER TO ONE HALF INCH CAN BE EXPECTED WITH ISOLATED HEAVIER
AMOUNTS. DURING THE AFTERNOON AND EARLY EVENING HOURS HEAVY RAIN
ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE IN THE AREA
MENTIONED ABOVE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 10 AM AND 8 PM.

In the hours before

Special weather statement, Jun 6, 5:01 PM CDT, 1 hour 11 minutes before
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Local storm report, Jun 6, 5:07 PM CDT, 1 hour 5 minutes before
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Special weather statement, Jun 6, 5:15 PM CDT, 57 minutes before
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Local storm report, Jun 6, 5:43 PM CDT, 29 minutes before
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Local storm report, Jun 6, 5:44 PM CDT, 28 minutes before
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Local storm report, Jun 6, 6:05 PM CDT, 7 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 12:06 PM CDTSevere Thunderstorm WarningHGXPolk24 min
Jun 6, 12:52 PM CDTAreal Flood AdvisoryHGXPolk113 min
Jun 6, 2:28 PM CDTSevere Thunderstorm WarningHGXHouston47 min
Jun 6, 3:24 PM CDTSevere Thunderstorm WarningHGXHouston36 min
Jun 6, 3:38 PM CDTSpecial Weather StatementHGXBrazos22 min
Jun 6, 3:48 PM CDTSevere Thunderstorm WarningHGXTrinity27 min
Jun 6, 4:09 PM CDTSevere Thunderstorm WarningHGXHouston, Madison, Trinity, Walker36 min
Jun 6, 4:13 PM CDTSevere Thunderstorm WarningHGXPolk, San Jacinto, Trinity, Walker47 min
Jun 6, 4:37 PM CDTTornado WarningHGXPolk23 min
Jun 6, 4:41 PM CDTSevere Thunderstorm WarningHGXMontgomery, Polk, San Jacinto, Trinity, Walker64 min
Jun 6, 5:01 PM CDTSpecial Weather StatementHGXMontgomery29 min
Jun 6, 5:09 PM CDTSevere Thunderstorm WarningHGXMontgomery, San Jacinto, Walker36 min
Jun 6, 5:15 PM CDTSpecial Weather StatementHGXLiberty45 min
Jun 6, 5:34 PM CDTSevere Thunderstorm WarningHGXHarris, Liberty, Montgomery, Polk, San Jacinto41 min
Jun 6, 5:55 PM CDTSevere Thunderstorm WarningHGXLiberty35 min
Jun 6, 6:20 PM CDTSpecial Weather StatementHGXHarris40 min
Jun 6, 6:28 PM CDTSevere Thunderstorm WarningHGXFort Bend, Harris, Montgomery, Waller47 min
Jun 6, 6:34 PM CDTSevere Thunderstorm WarningHGXChambers, Galveston, Harris, Liberty41 min
Jun 6, 6:41 PM CDTSpecial Weather StatementHGXChambers49 min
Jun 6, 6:43 PM CDTSpecial Marine WarningHGX2 hr
Jun 6, 6:59 PM CDTSpecial Weather StatementHGXBrazoria46 min

Nearby

Severe Thunderstorm Warnings in Texas, 2013Every severe thunderstorm warning in 2013

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.