Alert archive / Texas / Frost Advisories in 2013

Frost Advisory 3, NWS Lubbock, TX

October 18, 20134 counties in Texas

NWS Lubbock, TX issued this frost advisory at Oct 18, 2013, 2:42 PM CDT for 4 counties in Texas. It took effect at Oct 18, 2013, 10:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 18, 2013, 2:42 PM CDT (19:42 UTC)
In effect from
Oct 18, 2013, 10:00 PM CDT
Expired
Oct 18, 2013, 9:26 PM CDT
In force
Issued by
NWS Lubbock, TX

Counties Childress County, TX, Cottle County, TX, Hall County, TX, Motley County, TX

The radar

The Altus AFB radar (KFDR), 139 km from the middle of the area, began a volume at 19:43 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

Midland Regional, TX (KMAF), launched 12:00Z, 7.7 hours before the alert went out and 306 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-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2013-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2013-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
988 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 4:17 AM CDTFreeze WatchLUBBailey, Briscoe, Castro, Cochran, Crosby, Floyd and 10 more10 hr
Oct 18, 2:42 PM CDTFreeze WarningLUBBailey, Briscoe, Castro, Childress, Cochran, Cottle and 14 more19 hr

Nearby

Frost Advisories in Texas, 2013Every frost advisory in 2013

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.