Alert archive / Texas / Wind Advisories in 2021
Wind Advisory 8, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at May 22, 2021, 3:14 AM CDT for 4 counties in Texas. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- May 22, 2021, 3:14 AM CDT (08:14 UTC)
- Expired
- May 22, 2021, 4:00 PM CDT
- In force
- 13 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Brazoria County, TX, Galveston County, TX, Jackson County, TX, Matagorda County, TX
The radar
The Houston radar (KHGX), 77 km from the middle of the area, began a volume at 08:14 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, 8.2 hours before the alert went out and 217 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
- 323 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1307 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
588 WWUS74 KHGX 220814 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 314 AM CDT Sat May 22 2021 TXZ335-336-436>439-221500- /O.NEW.KHGX.WI.Y.0008.210522T0814Z-210522T1500Z/ Coastal Jackson-Coastal Matagorda-Matagorda Islands- Brazoria Islands-Galveston Island-Bolivar Peninsula- Including the cities of Palacios, Surfside Beach, and Galveston 314 AM CDT Sat May 22 2021 ...WIND ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Southeast winds 15 to 25 mph with gusts up to 35 mph. * WHERE...Coastal Jackson County, Coastal Matagorda County, Matagorda Islands, Brazoria Islands, Galveston Island and Bolivar Peninsula. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
1 follow-up statement
813 WWUS74 KHGX 221445 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 945 AM CDT Sat May 22 2021 TXZ335-336-436>439-222100- /O.EXT.KHGX.WI.Y.0008.000000T0000Z-210522T2100Z/ Coastal Jackson-Coastal Matagorda-Matagorda Islands- Brazoria Islands-Galveston Island-Bolivar Peninsula- Including the cities of Palacios, Surfside Beach, and Galveston 945 AM CDT Sat May 22 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...Southeast winds 15 to 25 mph with gusts up to 30 mph. * WHERE...Coastal Jackson County, Coastal Matagorda County, Matagorda Islands, Brazoria Islands, Galveston Island and Bolivar Peninsula. * WHEN...Until 4 PM CDT this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 11:30 PM CDT | Coastal Flood Warning | HGX | Brazoria, Chambers, Galveston, Harris, Matagorda | 8 hr |
| May 21, 11:30 PM CDT | Coastal Flood Advisory | HGX | Brazoria, Chambers, Galveston, Harris, Matagorda | 32 hr |
| May 22, 12:36 AM CDT | Rip Current Statement | HGX | Brazoria, Galveston, Matagorda | 24 hr |
| May 22, 3:15 PM CDT | Flash Flood Watch | HGX | Austin, Brazoria, Colorado, Fort Bend, Grimes, Harris and 6 more | 54 hr |
Nearby
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.