Alert archive / Arkansas / Frost Advisories in 2014

Frost Advisory 2, NWS Little Rock, AR

April 15, 201427 counties in Arkansas

NWS Little Rock, AR issued this frost advisory at Apr 15, 2014, 3:46 AM CDT for 27 counties in Arkansas. It took effect at Apr 16, 2014, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Apr 15, 2014, 3:46 AM CDT (08:46 UTC)
In effect from: Apr 16, 2014, 1:00 AM CDT
Expired: Apr 16, 2014, 8:00 AM CDT
In force: 7 hr
Issued by: NWS Little Rock, AR

All 27 counties

Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Conway County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Jackson County, AR, Jefferson County, AR, Lincoln County, AR, Lonoke County, AR, Monroe County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 41 km from the middle of the area, began a volume at 08:53 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

Little Rock, AR (KBYH), launched 00:00Z, 8.8 hours before the alert went out and 209 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: 900 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: -197 m²/s²
0-3 km storm-relative helicity: 84 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 frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this frost advisory went out at Apr 14, 6:12 PM CDT, 9 hours 34 minutes earlier.

Area forecast discussion, Apr 14, 6:12 PM CDT, 9 hours 34 minutes before

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Hazardous weather outlook, Apr 14, 12:05 PM CDT, 15 hours 41 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 7:45 PM CDT	River Flood Warning	LZK	Bradley, Calhoun, Union	11 days
Apr 15, 3:46 AM CDT	Freeze Warning	LZK	Baxter, Cleburne, Fulton, Independence, Izard, Jackson and 5 more	28 hr

Nearby

Frost Advisories in Arkansas, 2014 Every frost advisory 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.