Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 2, NWS Brownsville, TX

June 20, 2018Cameron County, Texas

NWS Brownsville, TX issued this tornado warning at Jun 20, 2018, 4:14 AM CDT for Cameron County, Texas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 20, 2018, 4:14 AM CDT (09:14 UTC)
Expired
Jun 20, 2018, 4:45 AM CDT
In force
31 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 30 km from the middle of the area, began a volume at 09:18 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, 9.2 hours before the alert went out and 190 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 2018-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 431 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 2018-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.1939Sfc1 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
431 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
705 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

076 
WFUS54 KBRO 200914
TORBRO
TXC061-200945-
/O.NEW.KBRO.TO.W.0002.180620T0914Z-180620T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Brownsville TX
414 AM CDT WED JUN 20 2018

The National Weather Service in Brownsville has issued a

* Tornado Warning for...
  Northwestern Cameron County in Deep South Texas...

* Until 445 AM CDT.
    
* At 414 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over La Paloma Elementary School, or over La Paloma,
  moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Harlingen, San Benito, Rio Hondo, Los Indios, La Paloma,
  Rangerville, Brownsville, La Encantada Elementary School, Landrum
  and Harlingen Arts And Heritage Museum.

This includes the following highways...
 Interstate Highway 69 E between mile markers 13 and 29.
 US Highway 281 between mile markers 818 and 830.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2599 9763 2600 9762 2601 9765 2603 9764
      2602 9767 2603 9766 2603 9769 2602 9769
      2604 9771 2602 9771 2603 9773 2602 9773
      2602 9774 2603 9776 2605 9777 2603 9778
      2604 9780 2632 9768 2626 9738 2598 9761
TIME...MOT...LOC 0914Z 207DEG 21KT 2607 9767 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

FRYE
2 follow-up statements
906 
WWUS54 KBRO 200929
SVSBRO

Severe Weather Statement
National Weather Service Brownsville TX
429 AM CDT WED JUN 20 2018

TXC061-200945-
/O.CON.KBRO.TO.W.0002.000000T0000Z-180620T0945Z/
Cameron TX-
429 AM CDT WED JUN 20 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
NORTHWESTERN CAMERON COUNTY...
    
At 428 AM CDT, a severe thunderstorm capable of producing a tornado
was located over San Benito High School, or over San Benito, moving
north at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Harlingen, San Benito, Rio Hondo, Harlingen Arts And Heritage Museum,
Harlingen High School, Harlingen Public Library, Harlingen City
Reservoir, Harlingen Fire Department, Harligen Municipal Golf Course
and Rio Hondo Elementary School.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2632 9768 2627 9744 2604 9757 2610 9777
TIME...MOT...LOC 0928Z 185DEG 16KT 2613 9767 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

FRYE
614 
WWUS54 KBRO 200944
SVSBRO

Severe Weather Statement
National Weather Service Brownsville TX
444 AM CDT WED JUN 20 2018

TXC061-200954-
/O.EXP.KBRO.TO.W.0002.000000T0000Z-180620T0945Z/
Cameron TX-
444 AM CDT WED JUN 20 2018

...THE TORNADO WARNING FOR NORTHWESTERN CAMERON COUNTY WILL EXPIRE AT
445 AM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Brownsville.

LAT...LON 2632 9768 2627 9744 2604 9757 2610 9777
TIME...MOT...LOC 0944Z 207DEG 21KT 2619 9764 

$$

FRYE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:53 PM CDTAreal Flood WarningBROBrooks3 hr
Jun 20, 12:04 AM CDTSpecial Marine WarningBRO41 min
Jun 20, 2:40 AM CDTAreal Flood AdvisoryBROWillacy2 hr
Jun 20, 3:05 AM CDTSpecial Marine WarningBRO55 min
Jun 20, 4:02 AM CDTAreal Flood AdvisoryBROCameron, Willacy118 min
Jun 20, 4:22 AM CDTAreal Flood AdvisoryBROHidalgo83 min
Jun 20, 4:32 AM CDTFlash Flood WarningBROCameron, Hidalgo118 min
Jun 20, 4:48 AM CDTFlash Flood WarningBROWillacy117 min
Jun 20, 5:11 AM CDTSpecial Weather StatementBROHidalgo49 min
Jun 20, 5:14 AM CDTTornado WarningBROCameron, Hidalgo46 min
Jun 20, 5:20 AM CDTFlash Flood Warning EmergencyBROHidalgo9 hr
Jun 20, 5:58 AM CDTSevere Thunderstorm WarningBROCameron, Willacy18 min
Jun 20, 6:27 AM CDTFlash Flood Warning EmergencyBROCameron, Hidalgo7 hr
Jun 20, 6:42 AM CDTFlash Flood WarningBROWillacy4 hr
Jun 20, 7:22 AM CDTFlash Flood WarningBROCameron4 hr
Jun 20, 10:01 AM CDTSpecial Marine WarningBRO119 min
Jun 20, 11:50 AM CDTSpecial Marine WarningBRO115 min
Jun 20, 1:29 PM CDTAreal Flood WarningBROCameron, Hidalgo36 hr
Jun 20, 1:47 PM CDTSpecial Marine WarningBRO118 min
Jun 20, 4:20 PM CDTFlash Flood WarningBROCameron, Willacy115 min
Jun 20, 6:04 PM CDTSpecial Marine WarningBRO116 min
Jun 20, 6:16 PM CDTFlash Flood WarningBROCameron119 min

Nearby

Tornado Warnings in Texas, 2018Every tornado warning in 2018Tornadoes in 2018

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.