Alert archive / Arkansas / Flash Flood Warnings in 2008

Flash Flood Warning 25, NWS Little Rock, AR

March 18, 20085 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Mar 18, 2008, 10:59 PM CDT for 5 counties in Arkansas. It was in force for 6 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: Mar 18, 2008, 10:59 PM CDT (03:59 UTC)
Expired: Mar 19, 2008, 5:00 AM CDT
In force: 6 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Arkansas County, AR, Cleveland County, AR, Jefferson County, AR, Lincoln County, AR, Monroe County, AR

The radar

The Little Rock radar (KLZK), 87 km from the middle of the area, began a volume at 03:58 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

Jackson, MS (KJAN), launched 00:00Z, 4.0 hours before the alert went out and 259 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: 4 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 301 m²/s²
0-3 km storm-relative helicity: 322 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 Mar 18, 6:45 PM CDT, 4 hours 14 minutes earlier.

Area forecast discussion, Mar 18, 6:45 PM CDT, 4 hours 14 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>

Hazardous weather outlook, Mar 18, 5:00 AM CDT, 17 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT TUE MAR 18 2008

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-191000-
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-
500 AM CDT TUE MAR 18 2008

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

.DAY ONE...TODAY AND TONIGHT

A DEEP UPPER LEVEL LOW...LOCATED OVER SOUTHWEST MEXICO THIS
MORNING...WILL MOVE NORTHEAST DURING THE PERIOD. DEEP SOUTHERLY FLOW
WILL CONTINUE IN ADVANCE OF THIS SYSTEM TO BRING PLENTY OF GULF
MOISTURE INTO THE STATE. DUE TO THE SLOW MOVING NATURE OF THIS
SYSTEM...RAINFALL WILL BE HEAVY...WITH EXCESSIVE RAINFALL POSSIBLE.
A FLASH FLOOD WATCH IS IN EFFECT AREA WIDE THROUGH WEDNESDAY
MORNING.

SURFACE LOW PRESSURE PASSING TO THE NORTH OF THE AREA WILL DRAG A
SLOW MOVING COLD FRONT THROUGH THE STATE TODAY. THE FRONT WILL ACT
AS A FOCUSING MECHANISM FOR THE HEAVY RAIN. A SECONDARY OF LOW
PRESSURE IS EXPECTED TO FORM ON THE FRONT LATER TODAY TO INCREASE
THE RAINFALL POTENTIAL EVEN MORE. THIS LOW WILL MOVE ACROSS SOUTHERN
ARKANSAS TONIGHT AND BE LOCATED OVER THE TENNESSEE VALLEY BY
WEDNESDAY MORNING.

AS THE FRONT MOVES THROUGH THE STATE...SEVERE THUNDERSTORMS WILL BE
POSSIBLE WITH THE MAIN CONCERN BEING DAMAGING WINDS. AN ISOLATED
TORNADO CAN NOT BE RULED OUT. THE BEST CHANCES OF SEEING SEVERE
WEATHER WILL BE ALONG THE FRONT ITSELF AND DURING THE AFTERNOON
HOURS. THERE IS A MODERATE RISK OF SEVERE WEATHER OVER FAR SOUTHERN
ARKANSAS WITH THE REMAINDER OF THE AREA UNDER A SLIGHT RISK.

THE GREATEST CONCERN HOWEVER WILL BE FLOODING. UPWARDS OF FOUR TO
SIX INCHES OF RAIN WILL BE POSSIBLE BY THE TIME THIS WEATHER SYSTEM
EXITS THE REGION. RIVER FLOODING IS ALSO A CONCERN...AS THE GROUND
REMAINS SATURATED AND THE WATER RUNS OFF.

EVERYONE IS URGED TO KEEP INFORMED OF THE LATEST WEATHER CONDITIONS
AND FORECAST FOR THE EARLY PART OF THE WORK WEEK. IN PARTICULAR...
PERSONS SHOULD REVIEW SAFETY RULES FOR FLASH FLOODS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE SURFACE LOW AND ASSOCIATED COLD FRONT WILL BE LOCATED WELL EAST
OF THE REGION EARLY WEDNESDAY. HOWEVER...THE UPPER LEVEL PART OF THE
STORM WILL BE LOCATED OVER WESTERN ARKNASAS WITH SHOWERS AND
THUNDERSTORMS CONTINUING. THE UPPER LEVEL LOW AND ASSOCIATED TROF
WILL MOVE OFF TO THE NORTHEAST WEDNESDAY AND BE LOCATED OVER THE
OHIO VALLEY BY THE END OF THE DAY. SHOWERS AND THUNDERSTORMS WILL
END FROM WEST TO EAST DURING THE DAY AS THE STORM MOVES OUT.
LOCALIZED HEAVY RAIN WILL STILL BE POSSIBLE OVER THE NORTHEAST PART
OF THE AREA WITH CONSIDERABLY LESSER AMOUNTS OVER THE WEST.

THE REMAINDER OF THE PERIOD WILL BE DRY WITH THE EXCEPTION OF SUNDAY
WHEN A WEAK DISTURBANCE WILL BRING A CHANCE OF SHOWERS TO THE
NATURAL STATE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THROUGH TUESDAY NIGHT.

&&

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

56

In the hours before

Local storm report, Mar 18, 5:13 PM CDT, 5 hours 46 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>

Local storm report, Mar 18, 5:16 PM CDT, 5 hours 43 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>

Local storm report, Mar 18, 5:17 PM CDT, 5 hours 42 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>

Local storm report, Mar 18, 5:38 PM CDT, 5 hours 21 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>

Local storm report, Mar 18, 6:00 PM CDT, 4 hours 59 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>

Local storm report, Mar 18, 6:25 PM CDT, 4 hours 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.

Issued	Product	Office	Counties	Lasted
Mar 18, 7:23 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Saline	37 min
Mar 18, 7:37 PM CDT	Flash Flood Warning	LZK	Cleburne, Conway, Faulkner, Garland, Independence, Jackson and 10 more	6 hr
Mar 18, 7:50 PM CDT	Severe Thunderstorm Warning	LZK	Pulaski, Saline	40 min
Mar 18, 8:33 PM CDT	River Flood Warning	LZK	Clay	5 days
Mar 18, 8:45 PM CDT	Flash Flood Warning	LZK	Clark, Hot Spring, Lonoke, Pulaski, Saline, White	6 hr
Mar 18, 9:06 PM CDT	River Flood Warning	LZK	White	10 days
Mar 18, 9:17 PM CDT	Severe Thunderstorm Warning	LZK	Grant, Jefferson, Pulaski, Saline	28 min
Mar 18, 9:46 PM CDT	Flash Flood Warning	LZK	Dallas, Grant, Jefferson, Prairie, Woodruff	6 hr
Mar 18, 9:55 PM CDT	River Flood Warning	LZK	Pope, Yell	61 hr
Mar 18, 9:58 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, White	47 min
Mar 18, 10:12 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Monroe, Prairie	48 min
Mar 18, 10:26 PM CDT	Flash Flood Warning	LZK	Baxter, Boone, Fulton, Izard, Marion, Newton and 4 more	6 hr
Mar 18, 10:29 PM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie, Woodruff	46 min
Mar 19, 2:33 AM CDT	River Flood Warning	LZK	Saline	33 hr
Mar 19, 2:35 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Drew	32 min
Mar 19, 4:26 AM CDT	Flash Flood Warning	LZK	Baxter, Boone, Fulton, Izard, Marion, Newton and 4 more	6 hr
Mar 19, 7:11 AM CDT	River Flood Warning	LZK	Clark, Hot Spring	38 hr
Mar 19, 8:14 AM CDT	Lake Wind Advisory	LZK	Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more	10 hr
Mar 19, 9:11 AM CDT	River Flood Warning	LZK	Calhoun, Ouachita	11 days
Mar 19, 9:11 AM CDT	River Flood Warning	LZK	Clark, Nevada, Ouachita	38 hr
Mar 19, 9:18 AM CDT	Flash Flood Warning	LZK	Conway, Perry	2 hr
Mar 19, 9:36 AM CDT	River Flood Warning	LZK	Arkansas, Desha, Lincoln	4 days
Mar 19, 9:39 AM CDT	River Flood Advisory	LZK	Pulaski	45 hr

Nearby

Flash Flood Warnings in Arkansas, 2008 Every flash flood warning in 2008

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.