Alert archive / Arkansas / Freeze Warnings in 2016

Freeze Warning 4, NWS Little Rock, AR

November 12, 20165 counties in Arkansas

NWS Little Rock, AR issued this freeze warning at Nov 12, 2016, 2:21 PM CST for 5 counties in Arkansas. It took effect at Nov 13, 2016, 1:00 AM CST. It was in force for 7 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
Nov 12, 2016, 2:21 PM CST (20:21 UTC)
In effect from
Nov 13, 2016, 1:00 AM CST
Expired
Nov 13, 2016, 8:00 AM CST
In force
7 hr
Issued by
NWS Little Rock, AR

Counties Baxter County, AR, Fulton County, AR, Izard County, AR, Marion County, AR, Sharp County, AR

The radar

The Little Rock radar (KLZK), 157 km from the middle of the area, began a volume at 20:27 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

Springfield, MO (KSGF), launched 12:00Z, 8.4 hours before the alert went out and 173 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, Springfield, MO at 12:00Z on 2016-11-12Temperature 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, Springfield, MO at 12:00Z on 2016-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 square meters per square second.193958Sfc1 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
1338 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 12, 3:27 AM CSTFrost AdvisoryLZKBaxter, Clark, Cleburne, Conway, Faulkner, Fulton and 17 more29 hr

Nearby

Freeze Warnings in Arkansas, 2016Every freeze warning in 2016

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.