Alert archive / Texas / Winter Storm Warnings in 2018
Winter Storm Warning 1, NWS San Angelo, TX
NWS San Angelo, TX issued this winter storm warning at Jan 15, 2018, 4:10 AM CST for 6 counties in Texas. It took effect at Jan 16, 2018, 12:00 AM CST. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 15, 2018, 4:10 AM CST (10:10 UTC)
- In effect from
- Jan 16, 2018, 12:00 AM CST
- Expired
- Jan 16, 2018, 3:29 AM CST
- In force
- 3 hr
- Issued by
- NWS San Angelo, TX
Counties Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, San Saba County, TX, Sutton County, TX
The radar
The San Angelo radar (KSJT), 106 km from the middle of the area, began a volume at 10:12 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 00:00Z, 10.2 hours before the alert went out and 202 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1584 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Angelo, TX wrote its last area forecast discussion before this winter storm warning went out at Jan 14, 10:52 PM CST, 5 hours 18 minutes earlier.
Area forecast discussion, Jan 14, 10:52 PM CST, 5 hours 18 minutes before
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Winter Storm Warnings in Texas, 2018Every winter storm warning in 2018
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.