Alert archive / Arkansas / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 314, NWS Little Rock, AR

October 18, 2004Jackson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Oct 18, 2004, 5:14 PM CDT for Jackson County, Arkansas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 18, 2004, 5:14 PM CDT (22:14 UTC)
Expired
Oct 18, 2004, 5:45 PM CDT
In force
31 min
Issued by
NWS Little Rock, AR
Area
Counties, with a storm outline in the text

County Jackson County, AR

The radar

The Memphis radar (KNQA), 125 km from the middle of the area, began a volume at 22:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Oct 18, 4:05 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.2 hours before the alert went out and 143 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 2004-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1504 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 2004-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 390 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
1504 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
520 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
390 m²/s²
0-3 km storm-relative helicity
482 m²/s²
Significant tornado parameter
3.3
Supercell composite
16.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Oct 18, 3:20 PM CDT, 1 hour 54 minutes earlier.

Area forecast discussion, Oct 18, 3:20 PM CDT, 1 hour 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LITTLE ROCK AR
320 PM CDT MON OCT 18 2004

.DISCUSSION...
PLENTY OF ACTIVE WEATHER THIS MORNING...WITH NUMEROUS WARNINGS
ISSUED. STORM SURVEYS BEING CONDUCTED THIS AFTERNOON FOR DAMAGE SEEN
IN SALINE COUNTY.

WARM FRONT IN SOUTHERN MISSOURI...WITH A DRY LINE IN EASTERN
OKLAHOMA. DRY LINE WILL MOVE EAST LATE THIS AFTERNOON/EARLY TONIGHT.
ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS
EVENING...BUT NOT LOOKING AT WIDESPREAD SEVERE WEATHER. COULD SEE
SOME HEAVY RAINFALL AGAIN...ESPECIALLY IN THE SOUTHWEST...BUT DUE TO
UNCERTAINTY...HAVE NOT INCLUDED IN ZONES. DID INCREASE QPF AMOUNTS
THOUGH.

ACTIVITY WILL MOVE TO THE EAST/NORTHEAST TUESDAY AS UPPER TROUGH
MOVES INTO THE GREAT LAKES REGION. KEPT SOME POPS IN THE
EAST/SOUTHEAST...DECREASING IN THE AFTERNOON AND EVENING HOURS.

DECREASED POPS WEDNESDAY...AS UPPER RIDGE MOVES OVERHEAD AND
MOISTURE IS LIMITED.. DID NOT FEEL CONFIDENT PULLING POPS ALL
TOGETHER...BUT SHOWED A DOWNWARD TREND. KEPT CHANCE POPS GOING FOR
THURSDAY...BUT THESE MAY NEED TO BE DECREASED AS WELL.

NEXT SYSTEM MOVES INTO THE STATE FRIDAY...WITH COLD FRONT ENTERING
LATE FRIDAY AFTERNOON. WITH THE LOW PRESSURE CENTER HEADING TO THE
NORTHEAST...NOT A LOT OF SUPPORT WITH THIS SYSTEM IN REGARDS TO
SEVERE WEATHER. STILL ENOUGH LIFT FOR CHANCE OF SHOWERS AND
THUNDERSTORMS. FRONT MOVES THROUGH THE STATE SATURDAY...BUT WILL
MOVE BACK NORTH ON SUNDAY. DRY WEATHER IN THE FORECAST FOR MONDAY AS
UPPER RIDGE MOVES NORTH.

TEMPS WILL BE TRICKY DEPENDING ON CLOUD COVER...BUT FOR THE MOST
PART WILL BE ABOVE NORMAL. READINGS WILL BEGIN TO COOL DOWN WITH
COLD FRONT SATURDAY...BEFORE CLIMBING AGAIN WITH WARM FRONT ON
SUNDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
LITTLE ROCK AR    65  84  64  84 /  30  20  20  20
HARRISON AR       59  82  57  82 /  30  10  10  20
HOT SPRINGS AR    65  85  64  85 /  30  20  20  20
PINE BLUFF AR     67  84  65  85 /  40  30  20  20
MOUNTAIN HOME AR  59  81  57  81 /  30  10  10  20
MONTICELLO AR     68  84  66  85 /  50  30  20  20
SEARCY AR         64  83  62  83 /  40  20  20  20
MOUNT IDA AR      65  85  63  85 /  30  20  10  20
RUSSELLVILLE AR   63  83  61  84 /  30  20  10  20
&&

.LZK WATCHES/WARNINGS/ADVISORIES...NONE.
&&

58
Hazardous weather outlook, Oct 18, 4:20 PM CDT, 54 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>

In the hours before

Local storm report, Oct 18, 12:48 PM CDT, 4 hours 26 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, Oct 18, 4:24 PM CDT, 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
424 PM CDT MON OCT 18 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0400 PM     HAIL             DRASCO                  35.63N 91.95W
10/18/2004  1.00 INCH        CLEBURNE           AR   POST OFFICE

&&

22
Local storm report, Oct 18, 5:02 PM CDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
502 PM CDT MON OCT 18 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0455 PM     HAIL             BETHESDA                35.78N 91.78W
10/18/2004  0.75 INCH        INDEPENDENCE       AR   EMERGENCY MNGR

&&

22
Local storm report, Oct 18, 5:08 PM CDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
508 PM CDT MON OCT 18 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0430 PM     HAIL             SOUTH SIDE              35.70N 91.62W
10/18/2004  0.88 INCH        INDEPENDENCE       AR   EMERGENCY MNGR

&&

22
Local storm report, Oct 18, 5:11 PM CDT, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
511 PM CDT MON OCT 18 2004

..TIME...   ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE...   ....MAG....     ..COUNTY LOCATION...ST.. ...SOURCE....
            ..REMARKS..

0420 PM     HAIL             DESHA                   35.73N 91.68W
10/18/2004  0.75 INCH        INDEPENDENCE       AR   TRAINED SPOTTER

&&

22

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 5:58 AM CDTSevere Thunderstorm WarningLZKFulton32 min
Oct 18, 6:26 AM CDTSevere Thunderstorm WarningLZKFaulkner34 min
Oct 18, 6:51 AM CDTSevere Thunderstorm WarningLZKLonoke, White39 min
Oct 18, 7:04 AM CDTSevere Thunderstorm WarningLZKSaline26 min
Oct 18, 7:26 AM CDTSevere Thunderstorm WarningLZKPulaski49 min
Oct 18, 7:38 AM CDTSevere Thunderstorm WarningLZKWhite, Woodruff52 min
Oct 18, 7:54 AM CDTFlash Flood WarningLZKPulaski2 hr
Oct 18, 8:45 AM CDTSevere Thunderstorm WarningLZKSaline45 min
Oct 18, 9:00 AM CDTSevere Thunderstorm WarningLZKMonroe, Woodruff45 min
Oct 18, 9:17 AM CDTTornado WarningLZKPulaski, Saline43 min
Oct 18, 9:51 AM CDTTornado WarningLZKLonoke39 min
Oct 18, 9:57 AM CDTTornado WarningLZKPulaski18 min
Oct 18, 10:26 AM CDTTornado WarningLZKLonoke, Prairie64 min
Oct 18, 10:53 AM CDTFlash Flood WarningLZKLonoke2 hr
Oct 18, 11:14 AM CDTFlash Flood WarningLZKPrairie2 hr
Oct 18, 11:19 AM CDTTornado WarningLZKMonroe56 min
Oct 18, 11:30 AM CDTSevere Thunderstorm WarningLZKArkansas, Lonoke, Prairie45 min
Oct 18, 3:50 PM CDTSevere Thunderstorm WarningLZKCleburne40 min
Oct 18, 4:12 PM CDTSevere Thunderstorm WarningLZKIndependence63 min
Oct 18, 5:26 PM CDTSevere Thunderstorm WarningLZKIndependence34 min
Oct 18, 5:50 PM CDTSevere Thunderstorm WarningLZKDallas40 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2004Every severe thunderstorm warning in 2004

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.