Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 87, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this severe thunderstorm warning at May 27, 2020, 1:45 PM CDT for Brazos County, Burleson County, Texas. It was in force for 60 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 27, 2020, 1:45 PM CDT (18:45 UTC)
- Expired
- May 27, 2020, 2:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Houston/Galveston, TX
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Brazos County, TX, Burleson County, TX
The radar
The Ft Hood radar (KGRK), 90 km from the middle of the area, began a volume at 18:46 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 |
|---|---|---|---|
| May 27, 1:24 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 6.8 hours before the alert went out and 263 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
- 32 J/kg
- Mixed-layer CIN
- -227 J/kg
- Mixed-layer LCL
- 1794 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 27, 1:32 PM CDT, 13 minutes earlier.
Area forecast discussion, May 27, 1:32 PM CDT, 13 minutes before
Area Forecast Discussion National Weather Service Houston/Galveston TX 132 PM CDT Wed May 27 2020 .AVIATION... Periods of SHRA/TSRA expected this afternoon and evening. Strong to severe thunderstorms are possible along areas N of I-10 with the highest probabilities of them developing over the NW quadrant of the CWA. Hazards with these storms will be hail, strong winds/downbursts, and lightning. Periods of IFR to MVFR vis/cigs are also possible with +RA. A Severe Thunderstorm Watch is in effect through 9 PM CDT today for most of the CWA. Conditions improve overnight and winds will be light and VRB. Another round of Iso to SCT SHRA/TSRA expected Thursday. 24 && .PREV DISCUSSION... /ISSUED 1142 AM CDT Wed May 27 2020/ UPDATE... Minor adjustments to the T, PoPs, and Wx were made to the inherited forecast for Today. Showers and thunderstorms continue to be expected this afternoon and evening, with strong to severe thunderstorms potentially developing over the NW quadrant of the CWA. SPC continues the Enhanced Risk for Severe Thunderstorms along the Colorado, Austin, Washington, Burleson, Brazos, and Waller counties and a Slight Risk for most of the rest of SE Texas. The most likely hazards with these storms are expected to be hail and damaging winds; there is a low probability of tornado (5%) development across the NW counties. 24 && .PRELIMINARY POINT TEMPS/POPS... College Station (CLL) 65 86 66 88 67 / 80 40 10 10 0 Houston (IAH) 69 89 69 90 70 / 40 50 10 10 10 Galveston (GLS) 76 85 75 88 76 / 20 40 20 20 10 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...NONE. GM...NONE. && Aviation...24
In the hours before
Local storm report, May 27, 10:56 AM CDT, 2 hours 49 minutes before
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</html>Local storm report, May 27, 11:45 AM CDT, 2 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1145 AM CDT WED MAY 27 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1014 PM WATER SPOUT 21 ENE GALVESTON 29.36N 94.58W
05/26/2020 GMZ355 TX PUBLIC
WATER SPOUT TO THE EAST OF THE BOLIVAR FERRY
LANDING LASTED ABOUT FOUR MINUTES.
&&The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 7:12 PM CDT | Special Weather Statement | HGX | Chambers | 48 min |
| May 26, 7:17 PM CDT | Severe Thunderstorm Warning | HGX | Chambers, Liberty | 43 min |
| May 26, 7:24 PM CDT | Areal Flood Advisory | HGX | Chambers, Liberty | 66 min |
| May 26, 8:23 PM CDT | Special Weather Statement | HGX | Chambers | 52 min |
| May 26, 9:25 PM CDT | Special Weather Statement | HGX | Chambers | 50 min |
| May 26, 9:30 PM CDT | Areal Flood Advisory | HGX | Chambers | 2 hr |
| May 26, 10:21 PM CDT | Special Marine Warning | HGX | 54 min | |
| May 27, 2:42 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Grimes, Washington | 48 min |
| May 27, 3:08 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazos, Grimes, Harris, Montgomery, Waller and 1 more | 52 min |
| May 27, 3:21 PM CDT | Tornado Warning | HGX | Grimes, Harris, Montgomery, Waller, Washington | 24 min |
| May 27, 3:52 PM CDT | Special Weather Statement | HGX | Liberty | 38 min |
| May 27, 3:54 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Fort Bend, Harris, Montgomery, Waller | 36 min |
| May 27, 4:06 PM CDT | Severe Thunderstorm Warning | HGX | Harris, Liberty, Montgomery | 24 min |
| May 27, 4:28 PM CDT | Severe Thunderstorm Warning | HGX | Austin, Brazoria, Chambers, Fort Bend, Galveston, Harris and 4 more | 62 min |
| May 27, 4:29 PM CDT | Special Marine Warning | HGX | 61 min | |
| May 27, 4:45 PM CDT | Areal Flood Advisory | HGX | Brazoria, Fort Bend, Harris | 2 hr |
| May 27, 4:50 PM CDT | Tornado Warning | HGX | Chambers, Galveston, Harris | 13 min |
| May 27, 5:06 PM CDT | Severe Thunderstorm Warning | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty | 54 min |
| May 27, 5:14 PM CDT | Special Marine Warning | HGX | 31 min | |
| May 27, 5:28 PM CDT | Areal Flood Advisory | HGX | Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty | 115 min |
| May 27, 5:34 PM CDT | Severe Thunderstorm Warning | HGX | Fort Bend, Wharton | 26 min |
| May 27, 5:43 PM CDT | Special Marine Warning | HGX | 62 min | |
| May 27, 6:09 PM CDT | Special Weather Statement | HGX | Burleson | 51 min |
| May 27, 6:51 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Montgomery, Walker | 39 min |
| May 27, 6:55 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Washington | 20 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020
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.