Alert archive / Texas / Wind Advisories in 2021
Wind Advisory 1, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this wind advisory at Jan 10, 2021, 4:58 AM CST for 4 counties in Texas. It took effect at Jan 10, 2021, 9:00 AM CST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Jan 10, 2021, 4:58 AM CST (10:58 UTC)
- In effect from
- Jan 10, 2021, 9:00 AM CST
- Expired
- Jan 11, 2021, 3:00 AM CST
- In force
- 18 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 10:57 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, 11.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 716 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 400 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
436 WWUS74 KHGX 101058 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 458 AM CST Sun Jan 10 2021 TXZ335>338-436>438-110300- /O.NEW.KHGX.WI.Y.0001.210110T1500Z-210111T0900Z/ Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Coastal Galveston-Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- Including the cities of Palacios, Lake Jackson, Freeport, Clute, Texas City, Dickinson, La Marque, Surfside Beach, and Galveston 458 AM CST Sun Jan 10 2021 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 3 AM CST MONDAY... * WHAT...Northeast winds 20 to 30 mph with higher gusts expected. * WHERE...Coastal Jackson, Coastal Matagorda, Coastal Brazoria, Coastal Galveston, Matagorda Islands, Brazoria Islands and Galveston Island and Bolivar Peninsula Counties. * WHEN...From 9 AM this morning to 3 AM CST Monday. * 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. && $$
2 follow-up statements
984 WWUS74 KHGX 102057 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 257 PM CST Sun Jan 10 2021 TXZ335>338-436>438-110900- /O.CON.KHGX.WI.Y.0001.000000T0000Z-210111T0900Z/ Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Coastal Galveston-Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- Including the cities of Palacios, Lake Jackson, Freeport, Clute, Texas City, Dickinson, La Marque, Surfside Beach, and Galveston 257 PM CST Sun Jan 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST MONDAY... * WHAT...Northeast to north winds 20 to 30 mph with higher gusts expected. * WHERE...Coastal Jackson, Coastal Matagorda, Coastal Brazoria, Coastal Galveston, Matagorda Islands, Brazoria Islands and Galveston Island and Bolivar Peninsula Counties. * WHEN...From 9 AM this morning to 3 AM CST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
904 WWUS74 KHGX 110348 NPWHGX URGENT - WEATHER MESSAGE National Weather Service Houston/Galveston TX 948 PM CST Sun Jan 10 2021 TXZ335>338-436>438-110900- /O.CON.KHGX.WI.Y.0001.000000T0000Z-210111T0900Z/ Coastal Jackson-Coastal Matagorda-Coastal Brazoria- Coastal Galveston-Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- Including the cities of Palacios, Lake Jackson, Freeport, Clute, Texas City, Dickinson, La Marque, Surfside Beach, and Galveston 948 PM CST Sun Jan 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST MONDAY... * WHAT...Northeast to north winds gusting up to 35 mph. * WHERE...Coastal Jackson, Coastal Matagorda, Coastal Brazoria, Coastal Galveston, Matagorda Islands, Brazoria Islands and Galveston Island and Bolivar Peninsula Counties. * WHEN...Through 3 AM CST Monday. * 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 |
|---|---|---|---|---|
| Jan 10, 3:33 AM CST | Gale Warning | HGX | 24 hr | |
| Jan 10, 4:57 AM CST | Winter Weather Advisory | HGX | Austin, Montgomery, Waller | 19 hr |
| Jan 10, 5:00 AM CST | Rip Current Statement | HGX | Brazoria, Galveston, Matagorda | 14 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.