Alert archive / Arkansas / Special Weather Statements in 2013

Special Weather Statement, NWS Tulsa, OK

August 30, 2013Madison County, Arkansas

NWS Tulsa, OK issued this special weather statement at Aug 30, 2013, 4:51 PM CDT for Madison County, Arkansas. It was in force for 39 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 30, 2013, 4:51 PM CDT (21:51 UTC)
Expired: Aug 30, 2013, 5:30 PM CDT
In force: 39 min
Issued by: NWS Tulsa, OK

County Madison County, AR

The radar

The Western Arkansas radar (KSRX), 75 km from the middle of the area, began a volume at 21:54 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

Springfield, MO (KSGF), launched 12:00Z, 9.9 hours before the alert went out and 117 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: 1274 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1494 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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 Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Aug 30, 3:16 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Aug 30, 3:16 PM CDT, 1 hour 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
316 PM CDT FRI AUG 30 2013

.DISCUSSION...
ONGOING ISOLATED CONVECTION ACROSS WESTERN AR WILL CONTINUE
THROUGH THE LATE AFTERNOON BEFORE DIMINISHING. THE MID LEVEL
CIRCULATION LARGELY RESPONSIBLE FOR THIS CONVECTION WILL SHIFT
TOWARD SE OK BY TOMORROW AFTERNOON...WITH ANY AFTERNOON STORMS
MOST LIKELY TO THE SOUTH AND EAST OF THE FORECAST AREA.
OTHERWISE...CONTINUED MILD OVERNIGHT LOWS AND HOT AFTERNOON TEMPS
EXPECTED PRIOR TO THE COLD FRONT ENTERING NE OK SUNDAY...AND
SLOWING WORKING SOUTH OF THE RED RIVER BY MONDAY AFTERNOON.
PRECIP CHANCES WILL ACCOMPANY THE FRONTAL PASSAGE...THOUGH ANY
RAINFALL AMOUNTS LOOK TO REMAIN RATHER LIGHT.

DRIER DEWPOINTS WILL FILTER INTO THE REGION W/ THE POST FRONTAL
AIRMASS ALLOWING FOR PLEASANT OVERNIGHT LOWS WITH HIGH TEMPS
REMAINING NEAR OR SLIGHTLY ABOVE NORMAL THROUGH MID WEEK. THE
LATEST DATA MAINTAINS A STRONGER UPPER RIDGE ALONG WITH A SLIGHTLY
FURTHER EASTERN PLACEMENT BY LATE WEEK. THIS WOULD FAVOR DRY
WEATHER AND TEMPS TRENDING UPWARD FOR MID TO LATE NEXT WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   75 100  77  98 /   0  10  10  20
FSM   76  99  77  98 /  10  10  10  10
MLC   73 100  73 100 /  10  10  10  10
BVO   67 100  70  95 /   0   0  10  20
FYV   67  96  68  95 /  10   0  10  20
BYV   70  95  71  96 /  10   0  10  20
MKO   73 100  74  98 /   0   0  10  20
MIO   71  98  72  94 /   0   0  10  20
F10   73 100  74  99 /   0   0  10  20
HHW   74 100  74 100 /   0  10  10  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

LONG TERM....07

Hazardous weather outlook, Aug 30, 12:48 PM CDT, 4 hours 3 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, Aug 30, 4:51 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
451 PM CDT FRI AUG 30 2013

ARZ010-011-302230-
MADISON AR-WASHINGTON AR-
451 PM CDT FRI AUG 30 2013

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 530 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHWEST ARKANSAS
     SOUTHWESTERN MADISON AND SOUTHEASTERN WASHINGTON

AT 452 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 3 MILES EAST OF
ARNETT...MOVING SOUTHEAST AT 10 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...COMBS...BRASHEARS...PATRICK...
DELANEY...CROSSES...WYOLA...ARNETT AND DURHAM.

THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.

LAT...LON 3586 9374 3577 9383 3578 9407 3585 9408
      3601 9397
TIME...MOT...LOC 2152Z 314DEG 7KT 3590 9399

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 30, 5:07 PM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	38 min

Nearby

Special Weather Statements in Arkansas, 2013 Every special weather statement in 2013

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.