Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 74, NWS Houston/Galveston, TX

May 3, 2019Harris County, Liberty County, Montgomery County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 3, 2019, 4:04 PM CDT for Harris County, Liberty County, Montgomery County, Texas. It was in force for 26 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 3, 2019, 4:04 PM CDT (21:04 UTC)
Expired
May 3, 2019, 4:30 PM CDT
In force
26 min
Issued by
NWS Houston/Galveston, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

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

The radar

The Houston radar (KHGX), 72 km from the middle of the area, began a volume at 21:07 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.1 hours before the alert went out and 196 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 2019-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 859 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 2019-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939Sfc1 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
859 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
-14 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

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 May 3, 3:59 PM CDT, 5 minutes earlier.

Area forecast discussion, May 3, 3:59 PM CDT, 5 minutes before
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Hazardous weather outlook, May 3, 4:49 AM CDT, 11 hours 15 minutes before
Hazardous Weather Outlook
National Weather Service Houston/Galveston TX
449 AM CDT Fri May 3 2019

TXZ163-164-176>179-195>200-210>214-226-227-235>238-300-313-
335>338-436>438-041000-
Austin-Brazoria Islands-Brazos-Burleson-Chambers-Coastal Brazoria-
Coastal Galveston-Coastal Harris-Coastal Jackson-
Coastal Matagorda-Colorado-Fort Bend-
Galveston Island and Bolivar Peninsula-Grimes-Houston-
Inland Brazoria-Inland Galveston-Inland Harris-Inland Jackson-
Inland Matagorda-Madison-Matagorda Islands-Montgomery-
Northern Liberty-Polk-San Jacinto-Southern Liberty-Trinity-Walker-
Waller-Washington-Wharton-
449 AM CDT Fri May 3 2019

This hazardous weather outlook is for portions of Southeast Texas..

.DAY ONE...Today and Tonight

Showers and thunderstorms will increase in coverage late this
afternoon. Some of the storms could become strong to severe with
damaging winds and large hail as the primary hazard. An isolated
tornado is also possible. Widespread rainfall of 1 to 2 inches
will be possible by Saturday morning with locally higher totals of
2 to 4 inches possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Another strong upper level disturbance will bring a chance of
showers and thunderstorms to the area late Monday into Tuesday. A
few storms could become strong with gusty winds.

.SPOTTER INFORMATION STATEMENT...

Emergency managers and storm spotters should prepare for possible
activation later this afternoon and tonight.

In the hours before

Special weather statement, May 3, 11:29 AM CDT, 4 hours 35 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
1129 AM CDT Fri May 3 2019

TXZ197-210>212-031730-
Washington TX-Waller TX-Colorado TX-Austin TX-
1129 AM CDT Fri May 3 2019

...SPECIAL WEATHER STATEMENT...

At 1128 AM CDT, Doppler radar was tracking a strong thunderstorm over
Industry, or 14 miles west of Bellville, moving northeast at 20 mph.

Half inch hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Bellville, Industry, New Ulm, Monaville and Frelsburg.

LAT...LON 2996 9657 2999 9659 3023 9619 2994 9603
      2982 9652 2993 9660
TIME...MOT...LOC 1628Z 238DEG 16KT 2994 9651
Special weather statement, May 3, 11:35 AM CDT, 4 hours 29 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
1135 AM CDT Fri May 3 2019

TXZ211>213-031700-
Waller TX-Inland Harris TX-Austin TX-
1135 AM CDT Fri May 3 2019

...Strengthening Thunderstorm Entering Waller County...

At 1135 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles southwest of Pine Island, or 8 miles east of Bellville, moving
northeast at 20 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Hempstead, Prairie View and Pine Island.

LAT...LON 2991 9612 2995 9619 3021 9605 3012 9589
TIME...MOT...LOC 1635Z 210DEG 17KT 2997 9612
Local storm report, May 3, 12:43 PM CDT, 3 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1243 PM CDT FRI MAY 03 2019

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

1152 AM     FUNNEL CLOUD     1 ENE COCHRAN           30.04N  96.11W
05/03/2019                   AUSTIN             TX   LAW ENFORCEMENT

&&

EVENT NUMBER HGX1900079

39
Special weather statement, May 3, 1:11 PM CDT, 2 hours 53 minutes before
Special Weather Statement
National Weather Service Houston/Galveston TX
111 PM CDT Fri May 3 2019

TXZ211-212-031900-
Waller TX-Austin TX-
111 PM CDT Fri May 3 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN AUSTIN AND CENTRAL
WALLER COUNTIES UNTIL 200 PM CDT...

At 110 PM CDT, Doppler radar was tracking a strong thunderstorm over
Bellville, moving east at 15 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Bellville, Waller, Pine Island and Monaville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2988 9634 3003 9635 3006 9593 2983 9590
TIME...MOT...LOC 1810Z 268DEG 15KT 2996 9626
Local storm report, May 3, 3:21 PM CDT, 43 minutes before
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Local storm report, May 3, 3:42 PM CDT, 22 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 7:09 PM CDTSpecial Weather StatementHGXHouston, Madison, Trinity, Walker51 min
May 2, 7:53 PM CDTAreal Flood AdvisoryHGXBrazos, Burleson, Grimes, Madison112 min
May 2, 8:31 PM CDTRiver Flood WarningHGXBrazos, Grimes, Madison21 days
May 3, 10:05 AM CDTRiver Flood WarningHGXHouston, Madison, Trinity, Walker72 hr
May 3, 10:18 AM CDTTornado WarningHGXColorado27 min
May 3, 10:19 AM CDTSpecial Weather StatementHGXAustin, Washington56 min
May 3, 10:45 AM CDTTornado WarningHGXColorado45 min
May 3, 10:46 AM CDTSevere Thunderstorm WarningHGXBrazos, Burleson, Grimes, Washington29 min
May 3, 11:11 AM CDTSpecial Weather StatementHGXGrimes, Washington49 min
May 3, 11:17 AM CDTAreal Flood AdvisoryHGXAustin, Brazos, Burleson, Colorado, Grimes, Waller and 1 more118 min
May 3, 11:29 AM CDTSpecial Weather StatementHGXAustin61 min
May 3, 11:35 AM CDTSpecial Weather StatementHGXWaller25 min
May 3, 11:51 AM CDTTornado WarningHGXAustin, Harris, Waller24 min
May 3, 11:55 AM CDTSevere Thunderstorm WarningHGXColorado35 min
May 3, 12:26 PM CDTTornado Warning Tornado observedHGXColorado, Wharton34 min
May 3, 12:34 PM CDTSevere Thunderstorm WarningHGXAustin, Washington26 min
May 3, 12:57 PM CDTSevere Thunderstorm WarningHGXAustin, Colorado, Wharton48 min
May 3, 1:11 PM CDTSpecial Weather StatementHGXAustin, Waller49 min
May 3, 1:12 PM CDTTornado WarningHGXHarris, Montgomery, Waller33 min
May 3, 1:24 PM CDTTornado Warning Tornado observedHGXAustin, Colorado, Fort Bend, Wharton36 min
May 3, 1:37 PM CDTAreal Flood AdvisoryHGXAustin, Harris, Montgomery, Waller113 min
May 3, 1:52 PM CDTTornado WarningHGXHarris, Montgomery23 min
May 3, 1:57 PM CDTTornado WarningHGXAustin, Colorado, Fort Bend, Wharton33 min
May 3, 2:08 PM CDTTornado WarningHGXHarris, Montgomery15 min
May 3, 2:29 PM CDTTornado WarningHGXFort Bend, Wharton46 min
May 3, 2:48 PM CDTRiver Flood WarningHGXBurleson, Washington45 hr
May 3, 2:53 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery37 min
May 3, 3:05 PM CDTRiver Flood WarningHGXMadison, Walker41 hr
May 3, 3:08 PM CDTSevere Thunderstorm WarningHGXBrazoria, Fort Bend, Wharton20 min
May 3, 3:24 PM CDTAreal Flood AdvisoryHGXHarris, Montgomery, Waller111 min
May 3, 3:29 PM CDTSevere Thunderstorm WarningHGXHarris, Montgomery31 min
May 3, 3:41 PM CDTFlash Flood WatchHGXAustin, Brazos, Burleson, Colorado, Grimes, Harris and 10 more12 hr
May 3, 4:31 PM CDTSpecial Weather StatementHGXLiberty44 min
May 3, 4:42 PM CDTAreal Flood AdvisoryHGXHarris, Liberty, Montgomery2 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2019Every severe thunderstorm warning in 2019

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.