Alert archive / Texas / Winter Weather Advisories in 2021
Winter Weather Advisory 1, NWS Brownsville, TX
NWS Brownsville, TX issued this winter weather advisory at Feb 13, 2021, 3:18 PM CST for Brooks County, Jim Hogg County, Zapata County, Texas. It took effect at Feb 13, 2021, 9:00 PM CST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Feb 13, 2021, 3:18 PM CST (21:18 UTC)
- In effect from
- Feb 13, 2021, 9:00 PM CST
- Expired
- Feb 14, 2021, 11:00 AM CST
- In force
- 14 hr
- Issued by
- NWS Brownsville, TX
Counties Brooks County, TX, Jim Hogg County, TX, Zapata County, TX
The radar
The Corpus Christi radar (KCRP), 144 km from the middle of the area, began a volume at 21:21 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 12:00Z, 9.3 hours before the alert went out and 155 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 464 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Brownsville, TX wrote its last area forecast discussion before this winter weather advisory went out at Feb 13, 11:25 AM CST, 3 hours 53 minutes earlier.
Area forecast discussion, Feb 13, 11:25 AM CST, 3 hours 53 minutes before
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</html>Hazardous weather outlook, Feb 13, 2:00 PM CST, 1 hour 18 minutes before
Hazardous Weather Outlook National Weather Service Brownsville TX 200 PM CST Sat Feb 13 2021 TXZ248>257-351-353-132300- Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo- Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron- Coastal Kenedy-Northern Hidalgo- 200 PM CST Sat Feb 13 2021 This Hazardous Weather Outlook is for portions of Deep South Texas. .DAY ONE...Today and Tonight A Wind Chill Advisory is in effect for all of Deep South Texas except for the Coastal sections of Kenedy, Willacy and Cameron Counties. A Freeze Watch remains in effect for Zapata, Jim Hogg, Brooks, and inland Kenedy County from 2 AM CST to 9 AM CST Sunday. There is a Moderate Risk of rip currents at the beaches of South Padre Island and at Boca Chica Beach. .DAYS TWO THROUGH SEVEN...Sunday through Friday An elevated risk of rip currents is possible at the local beaches through the entire period. A Winter Storm Watch is in effect for all of Deep South Texas except for the Coastal sections of Kenedy, Willacy and Cameron Counties for Sunday Night through Monday morning for the potential for periods of light freezing rain or light sleet. A Wind Advisory is possible for the central and eastern portions of Deep South Texas and the Rio Grande Valley on Monday. A Wind Chill Warning may be needed for portions of the lower Rio Grande Valley and Deep South Texas from Sunday night into Monday morning and again Monday evening into Tuesday morning, with wind chill values dipping into the teens and 20s. A Freeze Watch may be needed across the northern ranchlands and mid to upper Rio Grande Valley Monday morning and across the mid to lower Rio Grande Valley on Tuesday morning. A Hard Freeze Watch may be needed across the northern ranchlands and mid to upper Rio Grande Valley on Tuesday morning. .SPOTTER INFORMATION STATEMENT... Spotter activation requested. Please relay any information about observed severe winter weather to the NWS while following all local, state, and CDC guidelines. GMZ130-132-135-150-155-170-175-132300- Laguna Madre from the Port of Brownsville to the Arroyo Colorado- Laguna Madre from the Arroyo Colorado To 5 NM north of Port Mansfield TX- Laguna Madre from 5 nm north of Port Mansfield to Baffin Bay TX- Coastal waters from Port Mansfield to the Rio Grande out 20 nm- Coastal waters from Baffin Bay to Port Mansfield out 20 nm- Waters from Port Mansfield to the Rio Grande extending from 20 to 60 nm- Waters from Baffin Bay to Port Mansfield extending from 20 to 60 nm- 200 PM CST Sat Feb 13 2021 This Hazardous Weather Outlook is for portions of The Gulf of Mexico and The Laguna Madre. .DAY ONE...Today and Tonight A Small Craft Advisory is in effect for the Gulf of Mexico waters from 0 to 60 nautical miles offshore until Midnight Tonight. .DAYS TWO THROUGH SEVEN...Sunday through Friday Additional Small Craft Advisories are possible along the Lower Texas Coast Saturday night through Monday night and again Wednesday through Thursday. Gale conditions, requiring a Gale Warning, cannot be ruled out for Sunday night and Monday and again on Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation requested. Please relay any information about observed severe winter weather to the NWS while following all local, state, and CDC guidelines.
The office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 13, 4:50 AM CST | Wind Chill Advisory | BRO | Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more | 13 hr |
| Feb 13, 4:50 AM CST | Winter Storm Watch | BRO | Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more | 24 hr |
| Feb 13, 2:18 PM CST | Gale Watch | BRO | 13 hr | |
| Feb 13, 2:56 PM CST | Freeze Warning | BRO | Brooks, Jim Hogg, Zapata | 20 hr |
| Feb 13, 3:18 PM CST | Wind Chill Watch | BRO | Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more | 13 hr |
Nearby
Winter Weather Advisories in Texas, 2021Every winter weather advisory in 2021
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.