Alert archive / Texas / Areal Flood Advisories in 2021

Areal Flood Advisory 41, NWS Brownsville, TX

May 29, 2021Cameron County, Texas

NWS Brownsville, TX issued this areal flood advisory at May 29, 2021, 5:46 PM CDT for Cameron County, Texas. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
May 29, 2021, 5:46 PM CDT (22:46 UTC)
Expired
May 29, 2021, 6:45 PM CDT
In force
59 min
Issued by
NWS Brownsville, TX
Area
Storm-based polygon

County Cameron County, TX

The radar

The Brownsville radar (KBRO), 27 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 29 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 2021-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3154 joules per kilogram.LCLEL10008507005003002001001 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 2021-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
3154 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
101 m²/s²
Significant tornado parameter
1.2
Supercell composite
6.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 9:44 AM CDTSpecial Weather StatementBROBrooks, Jim Hogg46 min
May 29, 10:20 AM CDTSpecial Marine WarningBRO40 min
May 29, 10:31 AM CDTSpecial Weather StatementBROHidalgo, Kenedy, Starr, Willacy44 min
May 29, 10:44 AM CDTSpecial Marine WarningBRO46 min
May 29, 10:59 AM CDTSpecial Marine WarningBRO46 min
May 29, 11:12 AM CDTSpecial Weather StatementBROHidalgo, Willacy48 min
May 29, 11:30 AM CDTSpecial Marine WarningBRO45 min
May 29, 11:49 AM CDTSpecial Marine WarningBRO41 min
May 29, 12:01 PM CDTSpecial Weather StatementBROCameron44 min
May 29, 12:17 PM CDTSpecial Marine WarningBRO43 min
May 29, 12:23 PM CDTSpecial Marine WarningBRO37 min
May 29, 12:42 PM CDTAreal Flood AdvisoryBROCameron47 min
May 29, 1:06 PM CDTSpecial Weather StatementBROCameron39 min
May 29, 6:39 PM CDTAreal Flood AdvisoryBROCameron2 hr

Nearby

Areal Flood Advisories in Texas, 2021Every areal flood 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.