Alert archive / Texas / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 47, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 1, 2022, 3:57 PM CDT for Montgomery County, San Jacinto County, Walker County, Texas. It was in force for 33 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, 3:57 PM CDT (20:57 UTC)
- Expired
- May 1, 2022, 4:30 PM CDT
- In force
- 33 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 21:00 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, 9.0 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.
- 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
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, 3:45 PM CDT, 12 minutes earlier.
Area forecast discussion, May 1, 3:45 PM CDT, 12 minutes before
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Special weather statement, May 1, 3:09 PM CDT, 48 minutes before
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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 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, 3:33 PM CDT | Severe Thunderstorm Warning | HGX | Montgomery, San Jacinto, Walker | 27 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2022Every 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.