Alert archive / Arkansas / Special Weather Statements in 2016

Special Weather Statement, NWS Jackson, MS

April 30, 2016Chicot County, Arkansas

NWS Jackson, MS issued this special weather statement at Apr 30, 2016, 9:03 AM CDT for Chicot County, Arkansas. It was in force for 27 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: Apr 30, 2016, 9:03 AM CDT (14:03 UTC)
Expired: Apr 30, 2016, 9:30 AM CDT
In force: 27 min
Issued by: NWS Jackson, MS

County Chicot County, AR

The radar

The Jackson/Brandon,MS radar (KDGX), 173 km from the middle of the area, began a volume at 14:08 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 12:00Z, 2.1 hours before the alert went out and 163 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: 421 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 742 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 230 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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>

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 Jackson, MS wrote its last area forecast discussion before this special weather statement went out at Apr 30, 4:52 AM CDT, 4 hours 11 minutes earlier.

Area forecast discussion, Apr 30, 4:52 AM CDT, 4 hours 11 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, Apr 30, 5:39 AM CDT, 3 hours 24 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

Special weather statement, Apr 30, 7:18 AM CDT, 1 hour 45 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, Apr 30, 7:30 AM CDT, 1 hour 33 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>

Special weather statement, Apr 30, 9:03 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
903 AM CDT SAT APR 30 2016

ARZ074-075-301430-
ASHLEY AR-CHICOT AR-
903 AM CDT SAT APR 30 2016

...A STRONG THUNDERSTORM WILL AFFECT WESTERN CHICOT AND SOUTHEASTERN
ASHLEY COUNTIES UNTIL 930 AM CDT...

AT 902 AM CDT...METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM
OVER WILMOT...MOVING NORTHEAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  PORTLAND AROUND 915 AM CDT.
  MONTROSE AROUND 920 AM CDT.
  LAKE VILLAGE AND MCMILLAN CORNER AROUND 930 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3346 9141 3336 9115 3301 9139 3302 9172
TIME...MOT...LOC 1402Z 213DEG 45KT 3308 9156

7

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 30, 7:18 AM CDT	Special Weather Statement	JAN	Bolivar	27 min
Apr 30, 10:27 AM CDT	Special Weather Statement	JAN	Bolivar, Washington	63 min
Apr 30, 11:30 AM CDT	Special Weather Statement	JAN	Bolivar, Washington	60 min
Apr 30, 12:28 PM CDT	Special Weather Statement	JAN	Bolivar, Sunflower, Washington	62 min
Apr 30, 1:04 PM CDT	Special Weather Statement	JAN	Franklin	26 min
Apr 30, 1:13 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	62 min
Apr 30, 1:29 PM CDT	Special Weather Statement	JAN	Bolivar, Sunflower, Washington	61 min
Apr 30, 2:09 PM CDT	Special Weather Statement	JAN	Newton	21 min
Apr 30, 2:12 PM CDT	Special Weather Statement	JAN	Lawrence	48 min
Apr 30, 2:48 PM CDT	Special Weather Statement	JAN	Simpson	27 min
Apr 30, 3:12 PM CDT	Special Weather Statement	JAN	Covington, Jefferson Davis, Marion	33 min
Apr 30, 3:16 PM CDT	Special Weather Statement	JAN	Leake, Madison, Rankin	44 min
Apr 30, 3:37 PM CDT	Special Weather Statement	JAN	Jasper	23 min
Apr 30, 3:40 PM CDT	Special Weather Statement	JAN	Lamar	35 min
Apr 30, 3:57 PM CDT	Special Weather Statement	JAN	Leake, Scott, Smith	48 min
Apr 30, 4:01 PM CDT	Special Weather Statement	JAN	Newton	29 min
Apr 30, 4:13 PM CDT	Special Weather Statement	JAN	Forrest	32 min
Apr 30, 4:15 PM CDT	Special Weather Statement	JAN	Newton	30 min
Apr 30, 4:24 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale, Newton	48 min
Apr 30, 5:15 PM CDT	Special Weather Statement	JAN	Lauderdale	30 min

Nearby

Special Weather Statements in Arkansas, 2016 Every special weather statement in 2016

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.