Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 52, NWS Little Rock, AR

August 17, 20144 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Aug 17, 2014, 2:23 PM CDT for 4 counties in Arkansas. It was in force for 3 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
Aug 17, 2014, 2:23 PM CDT (19:23 UTC)
Expired
Aug 17, 2014, 5:30 PM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Emergency
Flash flood emergency
Flood severity
None

Counties Faulkner County, AR, Lonoke County, AR, Prairie County, AR, Pulaski County, AR

The radar

The Little Rock radar (KLZK), 22 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 189 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 2014-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1443 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 2014-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1443 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
60 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 flash flood 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 flash flood warning went out at Aug 17, 12:49 PM CDT, 1 hour 34 minutes earlier.

Area forecast discussion, Aug 17, 12:49 PM CDT, 1 hour 34 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1249 PM CDT SUN AUG 17 2014

.AVIATION...
CONFIDENCE HAS DECREASED IN CONVECTION CHANCES...AND HAVE KEPT
ONLY VCTS AT THE TAF SITES. WILL AMEND IF CONDITIONS DEVELOP. MVFR
CONDITIONS WILL BE POSSIBLE ACROSS THE NORTH NEAR SUNRISE AS LIGHT
WINDS COMBINE WITH LOW LEVEL MOISTURE.
&&

.PREV DISCUSSION... /ISSUED 409 AM CDT SUN AUG 17 2014/

SHORT TERM...TODAY THROUGH WEDNESDAY NIGHT

AN H500 SHORTWAVE WAS MOVING ACROSS EASTERN MISSOURI AND INTO THE
OHIO RIVER VALLEY REGION EARLY THIS MORNING....WITH A SURFACE
COLD FRONT TRAILING BEHIND. THIS COLD FRONT WILL SLOWLY MAKES ITS
WAY INTO NORTHERN ARKANSAS TODAY BEFORE STALLING OUT.
MEANWHILE...WATER VAPOR IMAGERY SHOWS ANOTHER UPPER LEVEL
DISTURBANCE MOVING ACROSS NORTHEAST TEXAS...WITH LIGHT PRECIP
SPREADING EASTWARD INTO THE ARKLATEX REGION.

SOUTHERLY FLOW WILL ALLOW FOR INCREASED MOISTURE ALONG AND SOUTH OF
THE FRONTAL BOUNDARY. AS THE UPPER LEVEL WAVE LIFTS ACROSS THE
STATE...EXPECT MORE WIDESPREAD SHOWERS AND THUNDERSTORMS TO DEVELOP
THROUGH THE DAY. AT THIS TIME...IT LOOKS AS THOUGH THE BEST
CHANCES FOR PRECIP WILL BE ALONG AN AREA BISECTING THE STATE FROM
THE SOUTHWEST TO THE NORTHEAST.

PRECIP CHANCES WILL CONTINUE INTO MONDAY...MAINLY ACROSS
SOUTHEASTERN AREAS...AS THE DISTURBANCE SHIFTS EAST.
UNSETTLED WEATHER WILL BE ON TAP THROUGH MID WEEK AS THE
NORTHWEST FLOW ALOFT ALLOWS RIPPLES OF ENERGY TO MOVE THROUGH THE
REGION AND INTERACT WITH THE STALLED BOUNDARY.

TEMPERATURES WILL CONTINUE TO INCREASE THROUGH THE SHORT TERM
PERIOD WITH HIGHS EXPECTED TO BE SOLIDLY IN THE MID 90S BY
MID WEEK AS HIGH PRESSURE RETURNS TO BRING HOT AND DRY WEATHER TO
THE STATE.

LONG TERM...THURSDAY THROUGH SATURDAY

MODEL SOLUTIONS THIS MRNG CONT TO INDC THAT HIGH PRES ALOFT WL BLD
ACRS THE MID SOUTH THRU THE PD. THIS WL RESULT IN TYPICAL SUMMERTIME
CONDS FOR THE NATURAL STATE. AFTN HEAT INDICES WL HOVER ARND THE
CENTURY MARK EACH DAY. THE ONLY RELIEF WL BE AN ISOLD AFTN/EARLY
EVENING SHOWER OR STORM. COVERAGE WL RMN TOO LOW TO MENTION IN THE
FCST.
&&

.LZK WATCHES/WARNINGS/ADVISORIES...NONE.
&&
Hazardous weather outlook, Aug 16, 2:40 PM CDT, 23 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
240 PM CDT SAT AUG 16 2014

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-171000-
ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND-
CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING-
INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE-
MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE-
PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE-
WOODRUFF-YELL-
240 PM CDT SAT AUG 16 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP LATER THIS
AFTERNOON INTO THE EVENING HOURS. THE BEST CHANCES FOR RAINFALL WILL
BE ACROSS THE NORTHERN HALF OF THE STATE THIS EVENING...BEFORE
SLOWLY MOVING SOUTH DURING THE OVERNIGHT HOURS. WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED TONIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

BETTER CHANCES FOR SHOWERS AND THUNDERSTORMS WILL OCCUR ON SUNDAY...
AS THE COLD FRONT PUSHES INTO NORTHERN ARKANSAS...BEFORE STALLING.
SEVERAL ROUNDS OF RAINFALL ARE EXPECTED FOR THE BEGINNING OF THE THE
WEEK...BEFORE THE ENTIRE SYSTEM GETS PUSHED OUT OF THE REGION
WEDNESDAY. HIGH PRESSURE WILL BRING HOT AND DRY CONDITIONS BACK TO
THE REGION MIDWEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

&&

VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND
CLICK ON CENTRAL ARKANSAS.

In the hours before

Special weather statement, Aug 17, 1:16 PM CDT, 1 hour 7 minutes before
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Special weather statement, Aug 17, 1:25 PM CDT, 58 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
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Local storm report, Aug 17, 1:47 PM CDT, 36 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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</html>
Local storm report, Aug 17, 1:49 PM CDT, 34 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 10:11 PM CDTSpecial Weather StatementLZKPike29 min
Aug 17, 1:16 PM CDTSpecial Weather StatementLZKPulaski29 min
Aug 17, 1:25 PM CDTSpecial Weather StatementLZKPulaski30 min
Aug 17, 1:26 PM CDTSevere Thunderstorm WarningLZKFaulkner, Pulaski19 min
Aug 17, 1:33 PM CDTSevere Thunderstorm WarningLZKFaulkner, Pulaski27 min
Aug 17, 1:38 PM CDTSevere Thunderstorm WarningLZKLonoke, Pulaski37 min
Aug 17, 1:45 PM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski30 min
Aug 17, 2:06 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie24 min
Aug 17, 2:14 PM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski46 min
Aug 17, 2:30 PM CDTSevere Thunderstorm WarningLZKLonoke, Prairie, Pulaski30 min
Aug 17, 2:40 PM CDTSevere Thunderstorm WarningLZKLonoke, Pulaski35 min
Aug 17, 2:43 PM CDTSpecial Weather StatementLZKLawrence47 min
Aug 17, 2:53 PM CDTSevere Thunderstorm WarningLZKLonoke, Monroe, Prairie, White, Woodruff33 min
Aug 17, 2:56 PM CDTSpecial Weather StatementLZKPulaski44 min
Aug 17, 3:04 PM CDTSevere Thunderstorm WarningLZKArkansas, Monroe41 min
Aug 17, 3:08 PM CDTSpecial Weather StatementLZKIzard47 min
Aug 17, 3:24 PM CDTSpecial Weather StatementLZKMonroe31 min
Aug 17, 3:26 PM CDTSpecial Weather StatementLZKSaline44 min
Aug 17, 3:44 PM CDTSpecial Weather StatementLZKIzard46 min
Aug 17, 3:56 PM CDTSevere Thunderstorm WarningLZKMonroe34 min
Aug 17, 5:34 PM CDTSpecial Weather StatementLZKStone31 min
Aug 17, 5:38 PM CDTSpecial Weather StatementLZKPulaski32 min
Aug 17, 5:40 PM CDTFlash Flood WarningLZKPulaski110 min

Nearby

Flash Flood Warnings in Arkansas, 2014Every flash flood warning 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.