Alert archive / Arkansas / Lake Wind Advisories in 2017

Lake Wind Advisory 13, NWS Little Rock, AR

April 28, 201726 counties in Arkansas

NWS Little Rock, AR issued this lake wind advisory at Apr 28, 2017, 2:31 PM CDT for 26 counties in Arkansas. It took effect at Apr 29, 2017, 9:00 AM CDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Apr 28, 2017, 2:31 PM CDT (19:31 UTC)
In effect from
Apr 29, 2017, 9:00 AM CDT
Expired
Apr 30, 2017, 10:51 AM CDT
In force
26 hr
Issued by
NWS Little Rock, AR
All 26 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, 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), 38 km from the middle of the area, began a volume at 19:32 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, 7.5 hours before the alert went out and 195 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, Little Rock, AR at 12:00Z on 2017-04-28Temperature 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, Little Rock, AR at 12:00Z on 2017-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.1939587897Sfc1 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
750 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
528 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 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 28, 12:44 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Apr 28, 12:44 PM CDT, 1 hour 47 minutes before
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Hazardous weather outlook, Apr 28, 5:00 AM CDT, 9 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Little Rock AR
500 AM CDT Fri Apr 28 2017

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-291000-
Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard-
Independence-Johnson-Pope-Van Buren-Cleburne-Jackson-Logan-Conway-
Faulkner-White-Woodruff-Scott-Yell-Perry-Polk-Montgomery-Garland-
Saline-Pulaski-Lonoke-Prairie-Monroe-Pike-Clark-Hot Spring-Grant-
Jefferson-Arkansas-Dallas-Cleveland-Lincoln-Desha-Ouachita-
Calhoun-Bradley-Drew-
500 AM CDT Fri Apr 28 2017

This Hazardous Weather Outlook is for a Large Part of Arkansas.

.DAY ONE...Today and Tonight

A warm front will gradually lift northward over Arkansas today,
then become nearly stationary across northern to north-central
Arkansas. As an upper level weather system moves through the
region, showers and thunderstorms will develop mainly north of
Little Rock, especially during the late evening and into the
overnight hours. Isolated to scattered strong to severe storms
will be possible near the frontal boundary, with large hail and
damaging winds the main threats. An isolated tornado may also be
seen. Areas of heavy rain will also be seen especially over
northern Arkansas, which could lead to flash flooding across the
area. This weather will continue tonight over the northern half of
Arkansas.

.DAYS TWO THROUGH SEVEN...Saturday Through Thursday

Severe thunderstorm chances will continue on Saturday, mainly in
the afternoon to evening, as Arkansas will be in the warm sector
with an approaching cold front. Large hail and damaging winds will
once again be the main threats, with an isolated tornado possible.
The potential for heavy rainfall will also exist, increasing the
concern for flash flooding and river flooding. Expect 3 to 5
inches over mainly the northwest and northern half of the state
with isolated heavier amounts Saturday through Sunday.

The widespread and very heavy rain may produce life threatening
flash flooding. Also, area river levels will rise, and some river
flooding will be possible. Interests along area waterways and
rivers should monitor the weather closely this weekend due to the
threat of possible flooding.

Forecast details are still being fine tuned, including where the
stationary front will set up today and Saturday, and the timing
of the rounds of very heavy rain. Please continue to monitor the
latest forecasts from your National Weather Service concerning
this potentially serious situation.

.Spotter Information Statement...

Spotter activation will likely be needed Friday evening and again
Saturday evening, and possibly Sunday due to the forecast of severe
weather and the flash flooding and river flooding potential.

&&

Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.

59/51

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 8:36 PM CDTRiver Flood WarningLZKPrairie49 days
Apr 27, 10:16 PM CDTRiver Flood AdvisoryLZKIndependence36 hr
Apr 28, 10:18 AM CDTRiver Flood WarningLZKPope, Yell5 days
Apr 28, 10:18 AM CDTRiver Flood WarningLZKConway, Perry47 hr
Apr 28, 10:18 AM CDTRiver Flood WarningLZKFaulkner, Perry41 hr
Apr 28, 10:18 AM CDTRiver Flood WarningLZKJefferson, Lincoln41 hr
Apr 28, 10:23 AM CDTRiver Flood WarningLZKYell5 days
Apr 28, 10:39 AM CDTRiver Flood WarningLZKYell4 days
Apr 28, 11:57 AM CDTRiver Flood WarningLZKArkansas, Desha, Lincoln5 days
Apr 28, 12:29 PM CDTRiver Flood WarningLZKWhite4 days
Apr 28, 12:34 PM CDTRiver Flood WarningLZKClay7 days
Apr 28, 12:37 PM CDTRiver Flood WarningLZKFulton, Sharp4 days
Apr 28, 12:37 PM CDTRiver Flood WarningLZKLawrence, Randolph4 days
Apr 28, 12:39 PM CDTRiver Flood WarningLZKRandolph8 days
Apr 28, 12:42 PM CDTRiver Flood WarningLZKSearcy4 days
Apr 28, 12:50 PM CDTRiver Flood WarningLZKIzard, Stone4 days
Apr 28, 12:50 PM CDTRiver Flood WarningLZKIndependence5 days
Apr 28, 1:14 PM CDTRiver Flood WarningLZKClark, Hot Spring4 days
Apr 28, 1:14 PM CDTRiver Flood WarningLZKCalhoun, Ouachita19 days
Apr 28, 1:14 PM CDTRiver Flood WarningLZKBradley, Calhoun, Union26 days
Apr 28, 1:15 PM CDTRiver Flood WarningLZKClark, Nevada, Ouachita3 days
Apr 28, 1:16 PM CDTRiver Flood WarningLZKSaline4 days

Nearby

Lake Wind Advisories in Arkansas, 2017Every lake wind advisory in 2017

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.