Alert archive / Arkansas / Special Weather Statements in 2018

Special Weather Statement, NWS Little Rock, AR

August 6, 2018Lonoke County, Arkansas

NWS Little Rock, AR issued this special weather statement at Aug 6, 2018, 4:13 PM CDT for Lonoke County, Arkansas. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2018, 4:13 PM CDT (21:13 UTC)
Expired
Aug 6, 2018, 5:00 PM CDT
In force
47 min
Issued by
NWS Little Rock, AR

County Lonoke County, AR

The radar

The Little Rock radar (KLZK), 35 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 176 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 2018-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 896 joules per kilogram.LCLLFCEL10008507005003002001001 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 2018-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.193958Sfc1 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
896 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1241 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 3:31 PM CDT, 42 minutes earlier.

Area forecast discussion, Aug 6, 3:31 PM CDT, 42 minutes before
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Hazardous weather outlook, Aug 6, 4:55 AM CDT, 11 hours 18 minutes before
Hazardous Weather Outlook
National Weather Service Little Rock AR
455 AM CDT Mon Aug 6 2018

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-071000-
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-
455 AM CDT Mon Aug 6 2018

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

.DAY ONE...Today and Tonight

Hot and humid conditions are expected today, with heat index
values climbing into the low-100s by afternoon. Additionally,
isolated thunderstorms will be possible this afternoon, with gusty
winds and lightning likely in any thunderstorms that develop.

.DAYS TWO THROUGH SEVEN...Tuesday Through Sunday

An unsettled weather pattern is expected this week into the
weekend. Showers and thunderstorms will be numerous, and while
the threat for severe weather appears low, heavy rainfall will be
likely and may lead to isolated flooding. Any flood threat that
does materialize will begin across northern Arkansas Tuesday and
gradually spread south into western Arkansas by Wednesday and
beyond.

.Spotter Information Statement...

Spotter activation will not be needed today or tonight.

&&

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

Cooper/Brown

In the hours before

Special weather statement, Aug 6, 2:56 PM CDT, 1 hour 17 minutes before
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Special weather statement, Aug 6, 3:13 PM CDT, 1 hour before
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Local storm report, Aug 6, 3:36 PM CDT, 37 minutes before
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Special weather statement, Aug 6, 3:42 PM CDT, 31 minutes before
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Special weather statement, Aug 6, 3:46 PM CDT, 27 minutes before
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Special weather statement, Aug 6, 4:13 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 2:05 PM CDTSpecial Weather StatementLZKJackson40 min
Aug 6, 2:09 PM CDTSevere Thunderstorm WarningLZKIndependence, Jackson51 min
Aug 6, 2:38 PM CDTSevere Thunderstorm WarningLZKIndependence, Jackson25 min
Aug 6, 2:41 PM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, White49 min
Aug 6, 2:53 PM CDTSpecial Weather StatementLZKPulaski52 min
Aug 6, 2:56 PM CDTSpecial Weather StatementLZKScott49 min
Aug 6, 3:13 PM CDTSpecial Weather StatementLZKLonoke47 min
Aug 6, 3:31 PM CDTSevere Thunderstorm WarningLZKLonoke, Pulaski44 min
Aug 6, 3:42 PM CDTSpecial Weather StatementLZKPerry, Saline48 min
Aug 6, 3:46 PM CDTSpecial Weather StatementLZKWhite44 min
Aug 6, 4:16 PM CDTSevere Thunderstorm WarningLZKJackson, White22 min
Aug 6, 4:46 PM CDTSpecial Weather StatementLZKSaline44 min

Nearby

Special Weather Statements in Arkansas, 2018Every special weather statement in 2018

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.