Alert archive / Texas / Wind Advisories in 2021
Wind Advisory 7, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Apr 28, 2021, 4:42 AM CDT for 15 counties in Texas. It took effect at Apr 28, 2021, 11:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 28, 2021, 4:42 AM CDT (09:42 UTC)
- In effect from
- Apr 28, 2021, 11:00 AM CDT
- Expired
- Apr 28, 2021, 7:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Austin County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Colorado County, TX, Fort Bend County, TX, Galveston County, TX, Grimes County, TX, Harris County, TX, Jackson County, TX, Madison County, TX, Matagorda County, TX, Waller County, TX, Washington County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 98 km from the middle of the area, began a volume at 09:47 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, 9.7 hours before the alert went out and 266 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
- 1372 J/kg
- Mixed-layer CIN
- -294 J/kg
- Mixed-layer LCL
- 713 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
199 WWUS74 KHGX 280942 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 442 AM CDT Wed Apr 28 2021 TXZ176-195>198-210>212-226-227-235>237-335>337-436>439-281745- /O.NEW.KHGX.WI.Y.0007.210428T1600Z-210429T0000Z/ Madison-Burleson-Brazos-Washington-Grimes-Colorado-Austin-Waller- Wharton-Fort Bend-Inland Jackson-Inland Matagorda-Inland Brazoria- Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Matagorda Islands-Brazoria Islands-Galveston Island- Bolivar Peninsula- Including the cities of Madisonville, Caldwell, Somerville, College Station, Bryan, Brenham, Navasota, Columbus, Eagle Lake, Weimar, Sealy, Bellville, Hempstead, Prairie View, Brookshire, Waller, El Campo, Wharton, Missouri City, Mission Bend, Sugar Land, Rosenberg, First Colony, Pecan Grove, Edna, Ganado, Bay City, Pearland, Alvin, Angleton, Palacios, Lake Jackson, Freeport, Clute, Surfside Beach, and Galveston 442 AM CDT Wed Apr 28 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...South winds 15 to 25 mph with gusts up to 30 mph expected. * WHERE...Portions of south central and southeast Texas. * WHEN...From 11 AM this morning to 7 PM CDT this evening. * 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. && $$
2 follow-up statements
148 WWUS74 KHGX 281545 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 1045 AM CDT Wed Apr 28 2021 TXZ213-290000- /O.EXA.KHGX.WI.Y.0007.210428T1600Z-210429T0000Z/ Inland Harris- Including the city of Houston 1045 AM CDT Wed Apr 28 2021 ...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...South winds 20 to 25 mph with gusts up to 30 mph expected. * WHERE...Inland Harris County. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ TXZ176-195>198-210>212-226-227-235>237-335>337-436>439-290000- /O.CON.KHGX.WI.Y.0007.210428T1600Z-210429T0000Z/ Madison-Burleson-Brazos-Washington-Grimes-Colorado-Austin-Waller- Wharton-Fort Bend-Inland Jackson-Inland Matagorda-Inland Brazoria- Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Matagorda Islands-Brazoria Islands-Galveston Island- Bolivar Peninsula- Including the cities of Madisonville, Caldwell, Somerville, College Station, Bryan, Brenham, Navasota, Columbus, Eagle Lake, Weimar, Sealy, Bellville, Hempstead, Prairie View, Brookshire, Waller, El Campo, Wharton, Missouri City, Mission Bend, Sugar Land, Rosenberg, First Colony, Pecan Grove, Edna, Ganado, Bay City, Pearland, Alvin, Angleton, Palacios, Lake Jackson, Freeport, Clute, Surfside Beach, and Galveston 1045 AM CDT Wed Apr 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...South winds 20 to 25 mph with gusts up to 30 mph expected. * WHERE...Portions of south central and southeast Texas. * WHEN...Until 7 PM CDT this evening. * 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. && $$
573 WWUS74 KHGX 282018 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 318 PM CDT Wed Apr 28 2021 TXZ176-195>198-210>213-226-227-235>237-335>337-436>439-290000- /O.CON.KHGX.WI.Y.0007.000000T0000Z-210429T0000Z/ Madison-Burleson-Brazos-Washington-Grimes-Colorado-Austin-Waller- Inland Harris-Wharton-Fort Bend-Inland Jackson-Inland Matagorda- Inland Brazoria-Coastal Jackson-Coastal Matagorda- Coastal Brazoria-Matagorda Islands-Brazoria Islands- Galveston Island-Bolivar Peninsula- Including the cities of Madisonville, Caldwell, Somerville, College Station, Bryan, Brenham, Navasota, Columbus, Eagle Lake, Weimar, Sealy, Bellville, Hempstead, Prairie View, Brookshire, Waller, Houston, El Campo, Wharton, Missouri City, Mission Bend, Sugar Land, Rosenberg, First Colony, Pecan Grove, Edna, Ganado, Bay City, Pearland, Alvin, Angleton, Palacios, Lake Jackson, Freeport, Clute, Surfside Beach, and Galveston 318 PM CDT Wed Apr 28 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Southeast winds 15 to 25 mph with gusts up to 30 mph. * WHERE...Portions of south central and southeast Texas. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 8:50 AM CDT | Rip Current Statement | HGX | Brazoria, Galveston, Matagorda | 34 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.