Alert archive / Arkansas / Winter Storm Warnings in 2015

Winter Storm Warning 3, NWS Little Rock, AR

February 24, 201517 counties in Arkansas

NWS Little Rock, AR issued this winter storm warning at Feb 24, 2015, 2:50 PM CST for 17 counties in Arkansas. It took effect at Feb 25, 2015, 6:00 AM CST. It was in force for 12 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: Feb 24, 2015, 2:50 PM CST (20:50 UTC)
In effect from: Feb 25, 2015, 6:00 AM CST
Expired: Feb 25, 2015, 6:00 PM CST
In force: 12 hr
Issued by: NWS Little Rock, AR

Counties Arkansas County, AR, Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Grant County, AR, Hot Spring County, AR, Jefferson County, AR, Lincoln County, AR, Lonoke County, AR, Monroe County, AR, Ouachita County, AR, Pike County, AR, Prairie County, AR

The radar

The Little Rock radar (KLZK), 83 km from the middle of the area, began a volume at 20:51 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 12:00Z, 8.8 hours before the alert went out and 221 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: 1016 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 146 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 Feb 24, 2:40 PM CST, 10 minutes earlier.

Area forecast discussion, Feb 24, 2:40 PM CST, 10 minutes before

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Hazardous weather outlook, Feb 24, 3:04 AM CST, 11 hours 46 minutes before

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In the hours before

Local storm report, Feb 24, 9:55 AM CST, 4 hours 55 minutes before

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Local storm report, Feb 24, 10:45 AM CST, 4 hours 5 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
Feb 24, 3:43 AM CST	Winter Storm Watch	LZK	Arkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 14 more	11 hr
Feb 24, 2:50 PM CST	Winter Weather Advisory	LZK	Faulkner, Garland, Lonoke, Monroe, Prairie, Pulaski and 3 more	27 hr

Nearby

Winter Storm Warnings in Arkansas, 2015 Every winter storm warning in 2015

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.