Alert archive / Texas / Freeze Warnings in 2014

Freeze Warning 1, NWS Amarillo, TX

April 13, 20148 counties in Texas; Beaver County, Oklahoma

NWS Amarillo, TX issued this freeze warning at Apr 13, 2014, 3:23 AM CDT for 8 counties in Texas; Beaver County, Oklahoma. It took effect at Apr 14, 2014, 1:00 AM CDT. It was in force for 9 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: Apr 13, 2014, 3:23 AM CDT (08:23 UTC)
In effect from: Apr 14, 2014, 1:00 AM CDT
Expired: Apr 14, 2014, 10:00 AM CDT
In force: 9 hr
Issued by: NWS Amarillo, TX

Counties Beaver County, OK, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 121 km from the middle of the area, began a volume at 08:27 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 8.4 hours before the alert went out and 120 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4440 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze warning 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 freeze warning went out at Apr 12, 11:39 PM CDT, 3 hours 44 minutes earlier.

Area forecast discussion, Apr 12, 11:39 PM CDT, 3 hours 44 minutes before

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Hazardous weather outlook, Apr 12, 10:04 PM CDT, 5 hours 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 3:23 AM CDT	Hard Freeze Warning	AMA	Armstrong, Carson, Dallam, Deaf Smith, Hansford, Hartley and 7 more	31 hr
Apr 13, 3:25 PM CDT	Hard Freeze Watch	AMA	Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more	24 hr
Apr 13, 3:25 PM CDT	Wind Advisory	AMA	Armstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 9 more	19 hr

Nearby

Freeze Warnings in Texas, 2014 Freeze Warnings in Oklahoma, 2014 Every freeze warning in 2014

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.