Alert archive / Arkansas / Lake Wind Advisories in 2014

Lake Wind Advisory 21, NWS Little Rock, AR

April 4, 201434 counties in Arkansas

NWS Little Rock, AR issued this lake wind advisory at Apr 4, 2014, 4:24 AM CDT for 34 counties in Arkansas. It took effect at Apr 4, 2014, 6:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Apr 4, 2014, 4:24 AM CDT (09:24 UTC)
In effect from: Apr 4, 2014, 6:00 AM CDT
Expired: Apr 4, 2014, 6:25 PM CDT
In force: 12 hr
Issued by: NWS Little Rock, AR

All 34 counties

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

The radar

The Little Rock radar (KLZK), 10 km from the middle of the area, began a volume at 09:27 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

Little Rock, AR (KBYH), launched 00:00Z, 9.4 hours before the alert went out and 202 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: 993 J/kg
Mixed-layer CIN: -136 J/kg
Mixed-layer LCL: 1599 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 233 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 6.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind 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 lake wind advisory went out at Apr 4, 4:10 AM CDT, 14 minutes earlier.

Area forecast discussion, Apr 4, 4:10 AM CDT, 14 minutes before

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Hazardous weather outlook, Apr 4, 4:00 AM CDT, 24 minutes before

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In the hours before

Local storm report, Apr 4, 2:11 AM CDT, 2 hours 13 minutes before

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Local storm report, Apr 4, 2:13 AM CDT, 2 hours 11 minutes before

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Local storm report, Apr 4, 2:42 AM CDT, 1 hour 42 minutes before

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Local storm report, Apr 4, 2:44 AM CDT, 1 hour 40 minutes before

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Local storm report, Apr 4, 2:48 AM CDT, 1 hour 36 minutes before

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Local storm report, Apr 4, 2:51 AM CDT, 1 hour 33 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 3, 7:30 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion, Newton, Searcy	45 min
Apr 3, 7:33 PM CDT	Tornado Warning	LZK	Baxter, Marion, Newton, Searcy	42 min
Apr 3, 8:03 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard, Marion, Stone	42 min
Apr 3, 8:16 PM CDT	Tornado Warning	LZK	Baxter, Izard, Stone	44 min
Apr 3, 8:43 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Izard, Sharp	47 min
Apr 3, 10:15 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	45 min
Apr 3, 11:35 PM CDT	Special Weather Statement	LZK	Garland, Hot Spring	45 min
Apr 3, 11:44 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	46 min
Apr 4, 12:07 AM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Clark, Cleveland, Dallas, Grant, Hot Spring and 1 more	53 min
Apr 4, 12:09 AM CDT	Special Weather Statement	LZK	Pulaski, Saline	26 min
Apr 4, 12:17 AM CDT	Severe Thunderstorm Warning	LZK	Conway, Faulkner, Pope, Van Buren	43 min
Apr 4, 12:22 AM CDT	Tornado Warning	LZK	Cleveland, Dallas, Grant, Jefferson	23 min
Apr 4, 12:26 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Dallas, Drew, Lincoln and 1 more	49 min
Apr 4, 12:42 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Lincoln	48 min
Apr 4, 12:49 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Cleveland, Dallas, Desha, Grant, Jefferson and 1 more	56 min
Apr 4, 12:54 AM CDT	Special Weather Statement	LZK	Cleburne	31 min
Apr 4, 1:16 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Cleveland, Desha, Drew, Lincoln	44 min
Apr 4, 1:27 AM CDT	Special Weather Statement	LZK	Independence, Jackson, White, Woodruff	28 min
Apr 4, 1:29 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Lincoln, Monroe	46 min

Nearby

Lake Wind Advisories in Arkansas, 2014 Every lake wind 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.