Alert archive / Texas / Winter Weather Advisories in 2021
Winter Weather Advisory 4, NWS Amarillo, TX
NWS Amarillo, TX issued this winter weather advisory at Feb 7, 2021, 3:10 PM CST for Hemphill County, Lipscomb County, Ochiltree County, Texas; Beaver County, Texas County, Oklahoma. It took effect at Feb 7, 2021, 6:00 PM CST. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Feb 7, 2021, 3:10 PM CST (21:10 UTC)
- In effect from
- Feb 7, 2021, 6:00 PM CST
- Expired
- Feb 8, 2021, 2:00 PM CST
- In force
- 20 hr
- Issued by
- NWS Amarillo, TX
Counties Beaver County, OK, Texas County, OK, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX
The radar
The Amarillo radar (KAMA), 158 km from the middle of the area, began a volume at 21:15 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
Dodge City, (KDDC), launched 12:00Z, 9.2 hours before the alert went out and 169 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
- 1 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 101 kt
- 0-1 km storm-relative helicity
- 753 m²/s²
- 0-3 km storm-relative helicity
- 746 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
Nearby
Winter Weather Advisories in Texas, 2021Winter Weather Advisories in Oklahoma, 2021Every winter weather 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.