Alert archive / Texas / Rip Current Statements in 2020
Rip Current Statement 54, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this rip current statement at Nov 21, 2020, 2:07 AM CST for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Nov 21, 2020, 2:07 AM CST (08:07 UTC)
- Expired
- Nov 21, 2020, 10:00 PM CST
- In force
- 20 hr
- Issued by
- NWS Houston/Galveston, TX
Counties Brazoria County, TX, Galveston County, TX, Matagorda County, TX
The radar
The Houston radar (KHGX), 54 km from the middle of the area, began a volume at 08:07 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, 8.1 hours before the alert went out and 241 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
- 38 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 939 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
650 WHUS44 KHGX 210807 CFWHGX Coastal Hazard Message National Weather Service Houston/Galveston TX 207 AM CST Sat Nov 21 2020 TXZ436>438-211615- /O.NEW.KHGX.RP.S.0054.201121T0807Z-201123T0300Z/ Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- 207 AM CST Sat Nov 21 2020 ...HIGH RIP CURRENT RISK IN EFFECT THROUGH SUNDAY EVENING... * WHAT...Strong rip currents along Gulf-facing beaches. * WHERE...Matagorda Islands, Brazoria Islands and Galveston Island and Bolivar Peninsula Counties. * WHEN...Through Sunday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$
1 follow-up statement
778 WHUS44 KHGX 210808 CFWHGX Coastal Hazard Message National Weather Service Houston/Galveston TX 208 AM CST Sat Nov 21 2020 TXZ436>438-211615- /O.EXT.KHGX.RP.S.0054.000000T0000Z-201122T0400Z/ Matagorda Islands-Brazoria Islands- Galveston Island and Bolivar Peninsula- 208 AM CST Sat Nov 21 2020 ...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THIS EVENING... * WHAT...Strong rip currents along Gulf-facing beaches. * WHERE...Matagorda Islands, Brazoria Islands and Galveston Island and Bolivar Peninsula Counties. * WHEN...Through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$
The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 2:09 AM CST | Dense Fog Advisory | HGX | Austin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 10 more | 7 hr |
| Nov 21, 4:17 AM CST | Marine Dense Fog Advisory | HGX | 5 hr |
Nearby
Rip Current Statements in Texas, 2020Every rip current statement 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.