Alert archive / Texas / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 46, NWS Houston/Galveston, TX

May 1, 2022Montgomery County, San Jacinto County, Walker County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 1, 2022, 3:33 PM CDT for Montgomery County, San Jacinto County, Walker County, Texas. It was in force for 27 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 1, 2022, 3:33 PM CDT (20:33 UTC)
Expired: May 1, 2022, 4:00 PM CDT
In force: 27 min
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Montgomery County, TX, San Jacinto County, TX, Walker County, TX

The radar

The Houston radar (KHGX), 123 km from the middle of the area, began a volume at 20:32 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, 8.6 hours before the alert went out and 218 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2646 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 6.3

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 1, 2:50 PM CDT, 43 minutes earlier.

Area forecast discussion, May 1, 2:50 PM CDT, 43 minutes before

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In the hours before

Special weather statement, May 1, 3:09 PM CDT, 24 minutes before

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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <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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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:01 PM CDT	Severe Thunderstorm Warning	HGX	Houston	59 min
Apr 30, 7:14 PM CDT	Severe Thunderstorm Warning	HGX	Houston, Madison	61 min
Apr 30, 7:16 PM CDT	Special Weather Statement	HGX	Montgomery	29 min
Apr 30, 7:28 PM CDT	Severe Thunderstorm Warning	HGX	Houston, Madison, Walker	32 min
Apr 30, 7:34 PM CDT	Special Weather Statement	HGX	Montgomery	26 min
Apr 30, 7:48 PM CDT	Severe Thunderstorm Warning	HGX	Harris, Montgomery	19 min
Apr 30, 7:53 PM CDT	Severe Thunderstorm Warning	HGX	Houston, Trinity	40 min
Apr 30, 8:13 PM CDT	Severe Thunderstorm Warning	HGX	Grimes, Madison, Walker	62 min
Apr 30, 8:36 PM CDT	Special Weather Statement	HGX	Montgomery	39 min
Apr 30, 8:39 PM CDT	Special Weather Statement	HGX	Houston, Trinity	66 min
Apr 30, 8:44 PM CDT	Areal Flood Advisory	HGX	Walker	61 min
Apr 30, 8:49 PM CDT	Areal Flood Advisory	HGX	Montgomery	56 min
Apr 30, 8:52 PM CDT	Areal Flood Advisory	HGX	Madison	3 hr
Apr 30, 9:00 PM CDT	Severe Thunderstorm Warning	HGX	Brazos, Grimes, Houston, Madison, Polk, San Jacinto and 2 more	30 min
Apr 30, 9:18 PM CDT	Areal Flood Advisory	HGX	Houston	57 min
Apr 30, 9:25 PM CDT	Severe Thunderstorm Warning	HGX	Brazos, Grimes, Madison, Montgomery, Polk, San Jacinto and 2 more	50 min
Apr 30, 9:52 PM CDT	Areal Flood Advisory	HGX	Grimes, Houston, Madison, Trinity, Walker	113 min
Apr 30, 10:09 PM CDT	Severe Thunderstorm Warning	HGX	Grimes, Montgomery, San Jacinto, Walker	51 min
Apr 30, 10:20 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, Walker	40 min
Apr 30, 10:41 PM CDT	Flash Flood Warning	HGX	Walker	2 hr
Apr 30, 11:01 PM CDT	Areal Flood Advisory	HGX	Brazos, Grimes, Montgomery, Walker	3 hr
Apr 30, 11:05 PM CDT	Special Weather Statement	HGX	Montgomery	55 min
Apr 30, 11:39 PM CDT	Special Weather Statement	HGX	Montgomery	51 min
May 1, 12:30 AM CDT	Special Weather Statement	HGX	Montgomery	30 min
May 1, 12:54 AM CDT	Special Weather Statement	HGX	Grimes	36 min
May 1, 1:31 AM CDT	Special Weather Statement	HGX	Grimes	59 min
May 1, 1:52 AM CDT	Areal Flood Advisory	HGX	Brazos, Grimes	3 hr
May 1, 3:09 PM CDT	Special Weather Statement	HGX	Montgomery	36 min
May 1, 3:57 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, San Jacinto, Walker	33 min

Nearby

Severe Thunderstorm Warnings in Texas, 2022 Every severe thunderstorm warning in 2022

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.