Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 23, NWS Houston/Galveston, TX

April 18, 20154 counties in Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 18, 2015, 11:40 PM CDT for 4 counties in Texas. It was in force for 40 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
Apr 18, 2015, 11:40 PM CDT (04:40 UTC)
Expired
Apr 19, 2015, 12:20 AM CDT
In force
40 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon

Counties Houston County, TX, Polk County, TX, San Jacinto County, TX, Trinity County, TX

The radar

The Houston radar (KHGX), 164 km from the middle of the area, began a volume at 04:42 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.

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 Apr 18, 6:10 PM CDT, 5 hours 30 minutes earlier.

Area forecast discussion, Apr 18, 6:10 PM CDT, 5 hours 30 minutes before
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Hazardous weather outlook, Apr 18, 4:42 PM CDT, 6 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
442 PM CDT SAT APR 18 2015

GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-191200-
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-
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-WHARTON-
442 PM CDT SAT APR 18 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...REST OF THIS AFTERNOON AND TONIGHT

EXPECT SCATTERED TO OCCASIONALLY NUMEROUS SHOWERS AND THUNDERSTORMS
TO MOVE ACROSS THE AREA. SOME OF THE STORMS COULD BECOME STRONG OR SEVERE.
DAMAGING WINDS...LARGE HAIL...AND LOCALLY HEAVY RAINFALL ARE EXPECTED
TO BE PRIMARY SEVERE WEATHER THREATS WITH THE STRONGER ACTIVITY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MIGHT BE NEEDED LATE THIS AFTERNOON AND TONIGHT.

In the hours before

Local storm report, Apr 18, 5:54 PM CDT, 5 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
554 PM CDT SAT APR 18 2015

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

0555 PM     TSTM WND DMG     10 WNW BAY CITY         29.03N  96.12W
04/17/2015                   MATAGORDA          TX   LAW ENFORCEMENT

            CLEMVILLE RESIDENT HAD DAMAGE TO BARN AND AC WINDOW
            UNIT...DAMAGE TO PUMP HOUSE...NUMEROUS TREES DOWN IN
            YARD.

&&

EVENT NUMBER HGX1500096

DCH
Local storm report, Apr 18, 5:56 PM CDT, 5 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
556 PM CDT SAT APR 18 2015

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

0705 PM     TSTM WND DMG     10 WNW BAY CITY         29.03N  96.12W
04/17/2015                   MATAGORDA          TX   LAW ENFORCEMENT

            CLEMVILLE RESIDENT HAD DAMAGE TO BARN AND AC WINDOW
            UNIT...DAMAGE TO PUMP HOUSE...NUMEROUS TREES DOWN IN
            YARD.

&&

CORRECTED EVENT TIME

EVENT NUMBER HGX1500096

DCH
Local storm report, Apr 18, 5:58 PM CDT, 5 hours 42 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 8:41 PM CDTRiver Flood WarningHGXBrazoria5 days
Apr 18, 8:41 PM CDTRiver Flood WarningHGXJackson, Lavaca17 hr
Apr 18, 8:41 PM CDTRiver Flood WarningHGXJackson57 hr
Apr 18, 9:23 PM CDTSpecial Weather StatementHGXBrazos, Burleson, Houston, Madison52 min
Apr 18, 10:15 PM CDTSpecial Weather StatementHGXBrazos, Grimes, Houston, Madison, Walker, Washington60 min
Apr 18, 11:04 PM CDTSpecial Weather StatementHGXPolk, San Jacinto, Trinity56 min
Apr 18, 11:09 PM CDTSpecial Weather StatementHGXAustin, Montgomery, Waller51 min
Apr 19, 3:01 PM CDTSpecial Weather StatementHGXBurleson44 min
Apr 19, 3:10 PM CDTSevere Thunderstorm WarningHGXBurleson, Washington50 min
Apr 19, 3:40 PM CDTSpecial Weather StatementHGXBrazos35 min
Apr 19, 3:44 PM CDTSevere Thunderstorm WarningHGXBrazos, Burleson, Grimes, Washington61 min
Apr 19, 3:45 PM CDTSevere Thunderstorm WarningHGXBrazos, Grimes, Madison30 min
Apr 19, 4:16 PM CDTSpecial Weather StatementHGXWashington44 min
Apr 19, 4:22 PM CDTSpecial Weather StatementHGXMadison23 min
Apr 19, 4:35 PM CDTSpecial Weather StatementHGXWashington40 min
Apr 19, 4:39 PM CDTSevere Thunderstorm WarningHGXGrimes, Houston, Madison, Walker36 min
Apr 19, 4:46 PM CDTSevere Thunderstorm WarningHGXGrimes, Harris, Waller, Washington44 min
Apr 19, 4:50 PM CDTSevere Thunderstorm WarningHGXBurleson, Washington25 min
Apr 19, 4:59 PM CDTSevere Thunderstorm WarningHGXHouston, Trinity31 min
Apr 19, 5:10 PM CDTSevere Thunderstorm WarningHGXGrimes, Walker21 min
Apr 19, 5:12 PM CDTSevere Thunderstorm WarningHGXGrimes, Harris, Montgomery, Waller48 min
Apr 19, 5:16 PM CDTSevere Thunderstorm WarningHGXHouston, Trinity, Walker29 min
Apr 19, 5:29 PM CDTSpecial Weather StatementHGXTrinity31 min
Apr 19, 5:32 PM CDTSpecial Weather StatementHGXWalker28 min
Apr 19, 5:47 PM CDTSevere Thunderstorm WarningHGXGrimes, Walker28 min
Apr 19, 5:55 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery, Waller65 min
Apr 19, 5:59 PM CDTSevere Thunderstorm WarningHGXGrimes, Harris, Montgomery, Waller31 min
Apr 19, 6:13 PM CDTSpecial Weather StatementHGXWaller47 min
Apr 19, 6:16 PM CDTSpecial Weather StatementHGXWalker29 min
Apr 19, 6:21 PM CDTSpecial Weather StatementHGXAustin24 min
Apr 19, 6:27 PM CDTSevere Thunderstorm WarningHGXAustin, Colorado, Waller33 min
Apr 19, 6:31 PM CDTAreal Flood AdvisoryHGXHarris119 min
Apr 19, 6:38 PM CDTSevere Thunderstorm WarningHGXHarris, Liberty, Montgomery37 min
Apr 19, 6:41 PM CDTTornado WarningHGXHarris, Liberty34 min
Apr 19, 6:47 PM CDTSevere Thunderstorm WarningHGXAustin, Colorado, Waller28 min
Apr 19, 6:58 PM CDTSevere Thunderstorm WarningHGXHarris47 min
Apr 19, 6:59 PM CDTSevere Thunderstorm WarningHGXAustin, Fort Bend, Harris, Waller31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.