Alert archive / Texas / Wind Advisories in 2021

Wind Advisory 16, NWS Brownsville, TX

October 27, 2021Brooks County, Jim Hogg County, Zapata County, Texas

NWS Brownsville, TX issued this wind advisory at Oct 27, 2021, 2:45 AM CDT for Brooks County, Jim Hogg County, Zapata County, Texas. It took effect at Oct 27, 2021, 12:00 PM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Oct 27, 2021, 2:45 AM CDT (07:45 UTC)
In effect from
Oct 27, 2021, 12:00 PM CDT
Expired
Oct 27, 2021, 4:00 PM CDT
In force
4 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 07:46 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, 7.8 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.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2021-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1406 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2021-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1406 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.2

Open this sounding in Storm Lab

The text

As transmitted.

281 
WWUS74 KBRO 270745
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
245 AM CDT Wed Oct 27 2021

TXZ248>250-272100-
/O.NEW.KBRO.WI.Y.0016.211027T1700Z-211027T2100Z/
Zapata-Jim Hogg-Brooks-
Including the cities of Zapata, Hebbronville, and Falfurrias
245 AM CDT Wed Oct 27 2021

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 4 PM CDT THIS
AFTERNOON...

* WHAT...Northwest winds 25 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...Zapata, Jim Hogg and Brooks Counties.

* WHEN...From noon today to 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 Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 26, 11:47 PM CDTCoastal Flood StatementBROKenedy5 hr
Oct 27, 2:40 AM CDTRip Current StatementBROKenedy22 hr
Oct 27, 3:19 PM CDTCoastal Flood StatementBROKenedy17 hr

Nearby

Wind Advisories in Texas, 2021Every wind 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.