Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 18, NWS Houston/Galveston, TX

April 17, 20158 counties in Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 17, 2015, 6:56 PM CDT for 8 counties in Texas. It was in force for 49 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 17, 2015, 6:56 PM CDT (23:56 UTC)
Expired: Apr 17, 2015, 7:45 PM CDT
In force: 49 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon

Counties Austin County, TX, Brazoria County, TX, Fort Bend County, TX, Galveston County, TX, Harris County, TX, Matagorda County, TX, Waller County, TX, Wharton County, TX

The radar

The Houston radar (KHGX), 64 km from the middle of the area, began a volume at 23:58 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.

Issued	Product	Office	Lasted
Apr 17, 3:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

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 17, 6:34 PM CDT, 22 minutes earlier.

Area forecast discussion, Apr 17, 6:34 PM CDT, 22 minutes before

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Hazardous weather outlook, Apr 17, 4:07 PM CDT, 2 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
407 PM CDT FRI APR 17 2015

GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-182115-
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-
407 PM CDT FRI APR 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT

SEVERE THUNDERSTORM WATCH IN EFFECT THROUGH 10 PM CDT TONIGHT.

A FLOOD WATCH IS IN EFFECT THROUGH SATURDAY MORNING.

THERE IS A ENHANCED RISK FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST
TEXAS AS THE ATMOSPHERE BECOMES MORE UNSTABLE AHEAD OF THE APPROACH
OF A SOUTH CENTRAL TEXAS STORM SYSTEM. A LATE AFTERNOON THREAT OF
HAIL AND DAMAGING WINDS...TRANSITIONING TO A FLOODING THREAT AS
HEAVY TRAINING CORE RAINS DEVELOP AND MOST LIKELY TRAIN OVER THE
REGION. ONE TO TWO INCH RAINS WILL LIKELY INDUCE FLASH FLOODING
ISSUES. ISOLATED THREE TO SIX AMOUNTS ARE POSSIBLE THROUGH SATURDAY
MORNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG TO SEVERE THUNDERSTORMS WITH HEAVY RAIN WILL BE POSSIBLE
AGAIN SATURDAY AS YET ANOTHER DISTURBANCE MOVES THROUGH THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS NEED TO BE READY TO REPORT ANY SEVERE WEATHER DURING THE
OVERNIGHT HOURS.

In the hours before

Local storm report, Apr 17, 12:59 PM CDT, 5 hours 57 minutes before

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Local storm report, Apr 17, 1:00 PM CDT, 5 hours 56 minutes before

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Special weather statement, Apr 17, 4:26 PM CDT, 2 hours 30 minutes before

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Special weather statement, Apr 17, 6:10 PM CDT, 46 minutes before

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Local storm report, Apr 17, 6:14 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
614 PM CDT FRI APR 17 2015

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

0558 PM     TSTM WND DMG     13 NNW EDNA             29.13N  96.76W
04/17/2015                   JACKSON            TX   LAW ENFORCEMENT

            TREES DOWN ON ROUTE 283 NEAR MORALES...ESTIMATED 50-60
            MPH WIND GUST.

&&

EVENT NUMBER HGX1500054

DCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 7:08 PM CDT	Areal Flood Advisory	HGX	Chambers, Harris, Liberty	112 min
Apr 16, 7:10 PM CDT	Areal Flood Advisory	HGX	Chambers, Harris, Liberty	2 hr
Apr 16, 7:20 PM CDT	Flash Flood Warning	HGX	Polk, San Jacinto, Walker	115 min
Apr 16, 7:27 PM CDT	Special Weather Statement	HGX	Wharton	33 min
Apr 16, 7:36 PM CDT	Severe Thunderstorm Warning	HGX	Matagorda, Wharton	39 min
Apr 16, 8:06 PM CDT	Flash Flood Warning	HGX	Chambers, Harris, Liberty	114 min
Apr 16, 8:14 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Matagorda, Wharton	46 min
Apr 16, 8:22 PM CDT	Severe Thunderstorm Warning	HGX	Austin, Colorado, Wharton	38 min
Apr 16, 8:57 PM CDT	Severe Thunderstorm Warning	HGX	Austin, Colorado, Fort Bend, Waller, Wharton	48 min
Apr 16, 9:03 PM CDT	Flash Flood Warning	HGX	Chambers, Harris, Liberty	117 min
Apr 16, 9:39 PM CDT	Areal Flood Advisory	HGX	Harris, Montgomery	2 hr
Apr 16, 9:45 PM CDT	Severe Thunderstorm Warning	HGX	Fort Bend	30 min
Apr 16, 10:14 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend	46 min
Apr 16, 10:25 PM CDT	Small Craft Advisory	HGX		9 hr
Apr 16, 10:41 PM CDT	Special Marine Warning	HGX		49 min
Apr 16, 10:54 PM CDT	Flash Flood Warning	HGX	Chambers, Harris, Liberty	3 hr
Apr 16, 11:04 PM CDT	Areal Flood Advisory	HGX	Harris	3 hr
Apr 16, 11:48 PM CDT	Areal Flood Advisory	HGX	Brazos, Burleson, Washington	117 min
Apr 17, 12:00 AM CDT	Flash Flood Warning	HGX	Harris	2 hr
Apr 17, 4:09 AM CDT	Special Marine Warning	HGX		36 min
Apr 17, 4:20 AM CDT	Special Marine Warning	HGX		40 min
Apr 17, 4:44 AM CDT	Special Marine Warning	HGX		46 min
Apr 17, 5:07 AM CDT	Special Marine Warning	HGX		38 min
Apr 17, 5:21 AM CDT	Special Marine Warning	HGX		84 min
Apr 17, 3:53 PM CDT	Special Marine Warning	HGX		67 min
Apr 17, 4:26 PM CDT	Special Weather Statement	HGX	Matagorda	49 min
Apr 17, 4:49 PM CDT	Severe Thunderstorm Warning	HGX	Jackson	41 min
Apr 17, 5:03 PM CDT	Areal Flood Advisory	HGX	Jackson	3 hr
Apr 17, 5:39 PM CDT	Areal Flood Advisory	HGX	Colorado, Wharton	3 hr
Apr 17, 5:45 PM CDT	Severe Thunderstorm Warning	HGX	Colorado, Jackson, Matagorda, Wharton	45 min
Apr 17, 6:10 PM CDT	Special Weather Statement	HGX	Waller	35 min
Apr 17, 6:14 PM CDT	Flash Flood Warning	HGX	Colorado, Jackson, Wharton	2 hr
Apr 17, 6:21 PM CDT	Severe Thunderstorm Warning	HGX	Austin, Brazoria, Colorado, Fort Bend, Jackson, Matagorda and 2 more	39 min
Apr 17, 6:32 PM CDT	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Harris, Waller, Wharton	118 min
Apr 17, 6:56 PM CDT	Areal Flood Advisory	HGX	Brazoria, Fort Bend, Jackson, Matagorda, Wharton	3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every 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.