Alert archive / Texas / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 28, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 7, 2019, 5:54 AM CDT for Austin County, Colorado County, Texas. It was in force for 37 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 7, 2019, 5:54 AM CDT (10:54 UTC)
- Expired
- Apr 7, 2019, 6:31 AM CDT
- In force
- 37 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Austin County, TX, Colorado County, TX
The radar
The Houston radar (KHGX), 132 km from the middle of the area, began a volume at 10:55 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
Corpus Christi, TX (KCRP), launched 00:00Z, 10.9 hours before the alert went out and 243 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.
- Mixed-layer CAPE
- 2128 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
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 7, 4:19 AM CDT, 1 hour 35 minutes earlier.
Area forecast discussion, Apr 7, 4:19 AM CDT, 1 hour 35 minutes before
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Special weather statement, Apr 7, 12:30 AM CDT, 5 hours 24 minutes before
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<div class="status" id="status">Temporary Notice</div>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:44 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Trinity | 46 min |
| Apr 6, 11:49 PM CDT | Marine Dense Fog Advisory | HGX | 7 hr | |
| Apr 7, 12:30 AM CDT | Special Weather Statement | HGX | Burleson | 30 min |
| Apr 7, 6:23 AM CDT | Special Weather Statement | HGX | Grimes | 37 min |
| Apr 7, 6:56 AM CDT | Special Weather Statement | HGX | Madison | 49 min |
| Apr 7, 7:10 AM CDT | Special Weather Statement | HGX | Grimes, Walker | 50 min |
| Apr 7, 7:28 AM CDT | Areal Flood Advisory | HGX | Brazos, Grimes, Montgomery, Walker, Washington | 62 min |
| Apr 7, 7:31 AM CDT | Areal Flood Advisory | HGX | Brazos, Grimes, Houston, Madison | 59 min |
| Apr 7, 7:47 AM CDT | Special Weather Statement | HGX | Washington | 43 min |
| Apr 7, 8:09 AM CDT | Special Weather Statement | HGX | Houston | 51 min |
| Apr 7, 8:51 AM CDT | Special Weather Statement | HGX | Burleson | 24 min |
| Apr 7, 8:59 AM CDT | Special Marine Warning | HGX | 2 hr | |
| Apr 7, 9:09 AM CDT | Areal Flood Advisory | HGX | Burleson, Washington | 2 hr |
| Apr 7, 9:33 AM CDT | Special Weather Statement | HGX | Brazos | 42 min |
| Apr 7, 9:40 AM CDT | Special Weather Statement | HGX | Jackson, Matagorda, Wharton | 50 min |
| Apr 7, 10:00 AM CDT | Special Marine Warning | HGX | 60 min | |
| Apr 7, 10:14 AM CDT | Severe Thunderstorm Warning | HGX | Jackson, Matagorda, Wharton | 31 min |
| Apr 7, 10:25 AM CDT | Special Weather Statement | HGX | Colorado | 50 min |
| Apr 7, 10:35 AM CDT | Special Weather Statement | HGX | Matagorda | 40 min |
| Apr 7, 10:46 AM CDT | Special Weather Statement | HGX | Wharton | 29 min |
| Apr 7, 10:57 AM CDT | Special Marine Warning | HGX | 63 min | |
| Apr 7, 11:05 AM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazoria, Colorado, Fort Bend, Matagorda, Wharton | 40 min |
| Apr 7, 11:12 AM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Matagorda | 48 min |
| Apr 7, 11:23 AM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazoria, Colorado, Fort Bend, Harris, Matagorda and 2 more | 52 min |
| Apr 7, 11:39 AM CDT | Special Marine Warning | HGX | 66 min | |
| Apr 7, 11:49 AM CDT | Special Weather Statement | HGX | Brazos, Burleson, Grimes, Washington | 41 min |
| Apr 7, 12:03 PM CDT | Special Marine Warning | HGX | 42 min | |
| Apr 7, 12:04 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazoria, Fort Bend, Galveston, Grimes, Harris and 4 more | 41 min |
| Apr 7, 12:20 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Grimes, Madison, Montgomery, San Jacinto and 3 more | 40 min |
| Apr 7, 12:35 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Fort Bend, Galveston, Grimes, Harris, Montgomery and 2 more | 25 min |
| Apr 7, 12:40 PM CDT | Special Marine Warning | HGX | 95 min | |
| Apr 7, 12:44 PM CDT | Tornado Warning | HGX | Chambers, Harris, Liberty | 16 min |
| Apr 7, 12:54 PM CDT | Tornado Warning | HGX | Montgomery, San Jacinto, Walker | 21 min |
| Apr 7, 12:58 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Chambers, Galveston, Grimes, Harris, Liberty and 5 more | 47 min |
| Apr 7, 1:02 PM CDT | Special Weather Statement | HGX | Grimes, Madison, Walker | 43 min |
| Apr 7, 1:14 PM CDT | Special Marine Warning | HGX | 61 min | |
| Apr 7, 1:35 PM CDT | Severe Thunderstorm Warning | HGX | Chambers, Galveston, Harris, Liberty, Montgomery, Polk and 3 more | 55 min |
| Apr 7, 1:46 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Madison, San Jacinto, Trinity, Walker | 44 min |
| Apr 7, 1:48 PM CDT | Tornado Warning | HGX | Houston, San Jacinto, Trinity, Walker | 27 min |
| Apr 7, 2:01 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Liberty, Madison, Polk, San Jacinto, Trinity and 1 more | 44 min |
| Apr 7, 2:47 PM CDT | Special Weather Statement | HGX | Houston | 28 min |
| Apr 7, 3:19 PM CDT | River Flood Warning | HGX | Brazos, Grimes, Madison | 21 days |
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.