Alert archive / Texas / Heat Advisories in 2017
Heat Advisory 3, NWS Brownsville, TX
NWS Brownsville, TX issued this heat advisory at May 28, 2017, 11:53 AM CDT for 4 counties in Texas. It took effect at May 28, 2017, 1:00 PM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- May 28, 2017, 11:53 AM CDT (16:53 UTC)
- In effect from
- May 28, 2017, 1:00 PM CDT
- Expired
- May 28, 2017, 6:00 PM CDT
- In force
- 5 hr
- Issued by
- NWS Brownsville, TX
Counties Cameron County, TX, Hidalgo County, TX, Starr County, TX, Willacy County, TX
The radar
The Brownsville radar (KBRO), 78 km from the middle of the area, began a volume at 16:51 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
Del Rio, TX (KDLF), launched 12:00Z, 4.9 hours before the alert went out and 433 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.
- Mixed-layer CAPE
- 3017 J/kg
- Mixed-layer CIN
- -339 J/kg
- Mixed-layer LCL
- 1097 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
What forecasters said that day
The local office's own words before this heat advisory 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 heat advisory went out at May 28, 10:22 AM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, May 28, 10:22 AM CDT, 1 hour 31 minutes before
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</html>Hazardous weather outlook, May 28, 4:13 AM CDT, 7 hours 40 minutes before
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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.