Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Brownsville, TX

May 16, 2021Cameron County, Texas

NWS Brownsville, TX issued this special weather statement at May 16, 2021, 12:29 PM 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
May 16, 2021, 12:29 PM CDT (17:29 UTC)
Expired
May 16, 2021, 1:00 PM CDT
In force
31 min
Issued by
NWS Brownsville, TX

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 41 km from the middle of the area, began a volume at 17:31 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

Brownsville Intl, TX (KBRO), launched 12:00Z, 5.5 hours before the alert went out and 43 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, Brownsville Intl, TX at 12:00Z on 2021-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3061 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brownsville Intl, TX at 12:00Z on 2021-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
3061 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
1.1
Supercell composite
5.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 16, 12:26 PM CDT, 3 minutes earlier.

Area forecast discussion, May 16, 12:26 PM CDT, 3 minutes before
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Hazardous weather outlook, May 16, 5:00 AM CDT, 7 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Brownsville TX
500 AM CDT Sun May 16 2021

TXZ248>257-351-353-162045-
Zapata-Jim Hogg-Brooks-Inland Kenedy-Starr-Southern Hidalgo-
Inland Willacy-Inland Cameron-Coastal Willacy-Coastal Cameron-
Coastal Kenedy-Northern Hidalgo-
500 AM CDT Sun May 16 2021

This Hazardous Weather Outlook is for portions of Deep South
Texas.

.DAY ONE...Today and Tonight

Isolated to scattered strong to potentially severe thunderstorms
will be possible today and tonight. Hail, strong and gusty winds,
and mainly nuisance flooding will be the main threats from any of
the stronger storms that form.

Moderate risk of rip currents.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Scattered to numerous strong thunderstorms will be possible
Wednesday through Friday. Small hail, strong and gusty winds, and
mainly nuisance flooding will be the main threats with these
stronger storms.

An elevated risk of rip currents will be possible at the local
beaches through Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today and tonight.

GMZ130-132-135-150-155-170-175-162045-
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-
500 AM CDT Sun May 16 2021

This Hazardous Weather Outlook is for portions of The Gulf of
Mexico and The Laguna Madre.

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms will be possible across the
lower Texas Bay and Gulf waters through tonight. Some of these
stronger thunderstorms could produce small hail, wind gusts up to
Gale Force and periods of locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Low end small craft advisory conditions may develop through the
period.

Scattered to numerous thunderstorms will be possible across the
lower Texas marine locations from Wednesday through Friday. Some of
these stronger thunderstorms could produce small hail, wind gusts up
to Gale Force and periods of locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Special weather statement, May 16, 9:38 AM CDT, 2 hours 51 minutes before
Special Weather Statement
National Weather Service Brownsville TX
938 AM CDT Sun May 16 2021

TXZ256-161515-
Coastal Willacy TX-
938 AM CDT Sun May 16 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN KENEDY AND
NORTHEASTERN WILLACY COUNTIES UNTIL 1015 AM CDT...

At 938 AM CDT, Doppler radar was tracking a strong thunderstorm over
Port Mansfield Chamber Of Commerce, or over Port Mansfield, moving
southwest at 10 mph.

Half inch hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Port Mansfield, Port Mansfield Chamber Of Commerce and Port Mansfield
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 2655 9742 2651 9742 2651 9739 2649 9741
      2651 9743 2649 9742 2648 9745 2645 9747
      2647 9746 2646 9747 2650 9752 2657 9753
      2660 9750 2660 9744 2656 9742 2656 9735
TIME...MOT...LOC 1438Z 043DEG 7KT 2654 9744

59
Local storm report, May 16, 9:52 AM CDT, 2 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
952 AM CDT SUN MAY 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0951 AM     TSTM WND GST     PORT MANSFIELD          26.55N 97.43W
05/16/2021  M50 MPH          WILLACY            TX   PUBLIC

            WATERSPOUT REPORTED OVER LAGUNA MADRE NE OF
            PORT MANSFIELD.

&&
Local storm report, May 16, 9:53 AM CDT, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
953 AM CDT SUN MAY 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0953 AM     WATER SPOUT      4 ENE PORT MANSFIELD    26.58N 97.37W
05/16/2021                   GMZ132             TX   CO-OP OBSERVER

&&
Special weather statement, May 16, 10:26 AM CDT, 2 hours 3 minutes before
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Special weather statement, May 16, 11:06 AM CDT, 1 hour 23 minutes before
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Special weather statement, May 16, 12:29 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 4:37 AM CDTSpecial Weather StatementBROBrooks23 min
May 16, 8:04 AM CDTSpecial Weather StatementBROKleberg26 min
May 16, 9:25 AM CDTSpecial Marine WarningBRO35 min
May 16, 9:38 AM CDTSpecial Weather StatementBROWillacy37 min
May 16, 10:02 AM CDTSpecial Marine WarningBRO58 min
May 16, 10:36 AM CDTSpecial Marine WarningBRO24 min
May 16, 11:01 AM CDTSpecial Marine WarningBRO59 min
May 16, 11:06 AM CDTSpecial Weather StatementBROWillacy39 min
May 16, 11:12 AM CDTAreal Flood AdvisoryBROWillacy63 min
May 16, 12:07 PM CDTSpecial Marine WarningBRO53 min
May 16, 12:26 PM CDTAreal Flood AdvisoryBROCameron, Willacy109 min
May 16, 12:42 PM CDTSevere Thunderstorm WarningBROCameron33 min
May 16, 12:44 PM CDTSpecial Marine WarningBRO31 min
May 16, 1:25 PM CDTSpecial Marine WarningBRO24 min

Nearby

Special Weather Statements in Texas, 2021Every special weather statement 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.