Alert archive / Arkansas / Winter Storm Warnings in 2016

Winter Storm Warning 1, NWS Little Rock, AR

January 21, 201627 counties in Arkansas

NWS Little Rock, AR issued this winter storm warning at Jan 21, 2016, 4:51 AM CST for 27 counties in Arkansas. It took effect at Jan 21, 2016, 6:00 PM CST. It was in force for 15 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 21, 2016, 4:51 AM CST (10:51 UTC)
In effect from: Jan 21, 2016, 6:00 PM CST
Expired: Jan 22, 2016, 9:16 AM CST
In force: 15 hr
Issued by: NWS Little Rock, AR

All 27 counties

Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleburne County, AR, Cleveland 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, Prairie County, AR, Pulaski County, AR, Saline County, AR, Sharp County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 36 km from the middle of the area, began a volume at 10:53 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, 10.9 hours before the alert went out and 198 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: 0 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 116 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 winter storm warning 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 winter storm warning went out at Jan 21, 4:03 AM CST, 48 minutes earlier.

Area forecast discussion, Jan 21, 4:03 AM CST, 48 minutes before

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In the hours before

Special weather statement, Jan 21, 2:04 AM CST, 2 hours 47 minutes before

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  <link rel="stylesheet" href="index.css">
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  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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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
Jan 21, 2:04 AM CST	Special Weather Statement	LZK	Hot Spring	26 min
Jan 21, 4:51 AM CST	Winter Storm Watch	LZK	Bradley, Calhoun, Clark, Conway, Fulton, Izard and 3 more	10 hr
Jan 21, 3:05 PM CST	Winter Weather Advisory	LZK	Baxter, Bradley, Calhoun, Clark, Conway, Fulton and 10 more	18 hr

Nearby

Winter Storm Warnings in Arkansas, 2016 Every winter storm 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.