Alert archive / Texas / Heat Advisories in 2020
Heat Advisory 13, NWS Amarillo, TX
NWS Amarillo, TX issued this heat advisory at Aug 13, 2020, 3:36 AM CDT for 8 counties in Texas. It took effect at Aug 13, 2020, 2:00 PM CDT. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Aug 13, 2020, 3:36 AM CDT (08:36 UTC)
- In effect from
- Aug 13, 2020, 2:00 PM CDT
- Expired
- Aug 13, 2020, 2:58 PM CDT
- In force
- 58 min
- Issued by
- NWS Amarillo, TX
Counties Armstrong County, TX, Carson County, TX, Collingsworth County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Potter County, TX, Randall County, TX
The radar
The Amarillo radar (KAMA), 32 km from the middle of the area, began a volume at 08:40 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
Norman, OK (KOUN), launched 00:00Z, 8.6 hours before the alert went out and 361 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
- 3207 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 1596 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 14.3
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 Amarillo, TX wrote its last area forecast discussion before this heat advisory went out at Aug 13, 1:04 AM CDT, 2 hours 32 minutes earlier.
Area forecast discussion, Aug 13, 1:04 AM CDT, 2 hours 32 minutes before
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</html>Hazardous weather outlook, Aug 12, 3:00 PM CDT, 12 hours 36 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.