Alert archive / Texas / Heat Advisories in 2021

Heat Advisory 2, NWS Brownsville, TX

June 7, 2021Jim Hogg County, Starr County, Zapata County, Texas

NWS Brownsville, TX issued this heat advisory at Jun 7, 2021, 2:26 AM CDT for Jim Hogg County, Starr County, Zapata County, Texas. It took effect at Jun 7, 2021, 1:00 PM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jun 7, 2021, 2:26 AM CDT (07:26 UTC)
In effect from
Jun 7, 2021, 1:00 PM CDT
Expired
Jun 7, 2021, 7:00 PM CDT
In force
6 hr
Issued by
NWS Brownsville, TX

Counties Jim Hogg County, TX, Starr County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 168 km from the middle of the area, began a volume at 07:28 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, 7.4 hours before the alert went out and 179 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 2021-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4181 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 2021-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.193958Sfc1 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
4181 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.9
Supercell composite
10.7

Open this sounding in Storm Lab

The text

As transmitted.

591 
WWUS74 KBRO 070726
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
226 AM CDT Mon Jun 7 2021

TXZ248-249-252-071530-
/O.NEW.KBRO.HT.Y.0002.210607T1800Z-210608T0000Z/
Zapata-Jim Hogg-Starr-
Including the cities of Zapata, Hebbronville, Rio Grande City, 
and Roma
226 AM CDT Mon Jun 7 2021

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM CDT
THIS EVENING...

* WHAT...Heat index values up to 115 expected.

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

* WHEN...From 1 PM this afternoon to 7 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

TXZ251-254>257-351-071530-
/O.NEW.KBRO.WI.Y.0013.210607T1300Z-210608T0000Z/
Inland Kenedy-Inland Willacy-Inland Cameron-Coastal Willacy-
Coastal Cameron-Coastal Kenedy-
Including the cities of Sarita, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, and Laguna Vista
226 AM CDT Mon Jun 7 2021

...WIND ADVISORY IN EFFECT FROM 8 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

* WHAT...Southeast winds 25 to 35 mph.

* WHERE...Inland Kenedy, Inland Willacy, Inland Cameron, Coastal 
  Willacy, Coastal Cameron and Coastal Kenedy Counties.

* WHEN...From 8 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.

&&

$$
3 follow-up statements
087 
WWUS74 KBRO 071901
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
201 PM CDT Mon Jun 7 2021

TXZ248-249-252-080000-
/O.CON.KBRO.HT.Y.0002.000000T0000Z-210608T0000Z/
Zapata-Jim Hogg-Starr-
Including the cities of Zapata, Hebbronville, Rio Grande City, 
and Roma
201 PM CDT Mon Jun 7 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Heat index values 111 to 115 expected, mainly along and
  near the Rio Grande.

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

* WHEN...From 1 PM this afternoon to 7 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

TXZ251-254>257-351-080000-
/O.CON.KBRO.WI.Y.0013.000000T0000Z-210608T0000Z/
Inland Kenedy-Inland Willacy-Inland Cameron-Coastal Willacy-
Coastal Cameron-Coastal Kenedy-
Including the cities of Sarita, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, and Laguna Vista
201 PM CDT Mon Jun 7 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Southeast winds 25 to 35 mph with a few gusts to 40 mph.

* WHERE...Inland Kenedy, Inland Willacy, Inland Cameron, Coastal 
  Willacy, Coastal Cameron and Coastal Kenedy Counties.

* 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.

&&

$$

52/BSG
890 
WWUS74 KBRO 072319
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
619 PM CDT Mon Jun 7 2021

TXZ251-254>257-351-080030-
/O.CAN.KBRO.WI.Y.0013.000000T0000Z-210608T0000Z/
Inland Kenedy-Inland Willacy-Inland Cameron-Coastal Willacy-
Coastal Cameron-Coastal Kenedy-
Including the cities of Sarita, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, and Laguna Vista
619 PM CDT Mon Jun 7 2021

...WIND ADVISORY IS CANCELLED...

Winds across the advisory area are now below criteria.

$$

TXZ248-249-252-080030-
/O.CON.KBRO.HT.Y.0002.000000T0000Z-210608T0000Z/
Zapata-Jim Hogg-Starr-
Including the cities of Zapata, Hebbronville, Rio Grande City, 
and Roma
619 PM CDT Mon Jun 7 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Heat index values 111 to 115 expected, mainly along and 
  near the Rio Grande.

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

* WHEN...From 1 PM this afternoon to 7 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

54
044 
WWUS74 KBRO 072358
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
658 PM CDT Mon Jun 7 2021

TXZ248-249-252-080100-
/O.EXP.KBRO.HT.Y.0002.000000T0000Z-210608T0000Z/
Zapata-Jim Hogg-Starr-
Including the cities of Zapata, Hebbronville, Rio Grande City, 
and Roma
658 PM CDT Mon Jun 7 2021

...HEAT ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING...

Heat index values across the advisory area are decreasing as 
temperatures cool. Therefore, the heat advisory will be allowed 
to expire at 7 PM.

$$

54

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 2:26 AM CDTWind AdvisoryBROCameron, Kenedy, Willacy16 hr
Jun 7, 2:28 AM CDTSmall Craft AdvisoryBRO25 hr
Jun 7, 2:41 AM CDTRip Current StatementBROKenedy16 hr

Nearby

Heat Advisories in Texas, 2021Every heat 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.