Alert archive / Oklahoma / Special Weather Statements in 2011

Special Weather Statement, NWS Tulsa, OK

July 30, 2011Osage County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 30, 2011, 1:23 PM CDT for Osage County, Oklahoma. It was in force for 22 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: Jul 30, 2011, 1:23 PM CDT (18:23 UTC)
Expired: Jul 30, 2011, 1:45 PM CDT
In force: 22 min
Issued by: NWS Tulsa, OK

County Osage County, OK

The radar

The Tulsa radar (KINX), 69 km from the middle of the area, began a volume at 18:22 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

Lamont, OK (KLMN), launched 12:00Z, 6.4 hours before the alert went out and 111 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: 715 J/kg
Mixed-layer CIN: -212 J/kg
Mixed-layer LCL: 1690 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -25 m²/s²
0-3 km storm-relative helicity: 45 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 Jul 30, 11:04 AM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, Jul 30, 11:04 AM CDT, 2 hours 19 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, Jul 30, 1:04 PM CDT, 19 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, Jul 30, 1:23 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
123 PM CDT SAT JUL 30 2011

OKZ054-301845-
OSAGE OK-
123 PM CDT SAT JUL 30 2011

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 145 PM CDT
FOR THE FOLLOWING COUNTY...

IN NORTHEAST OKLAHOMA
     SOUTHERN OSAGE

AT 122 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES EAST OF
HOMINY...MOVING NORTHEAST AT 5 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...HOMINY.

THIS STORM WILL BE CAPABLE OF PRODUCING PEA SIZE HAIL AND WIND GUSTS
TO 45 MPH...AND VERY HEAVY RAIN. RESIDENTS IN THESE AREAS SHOULD
REMAIN ALERT IN CASE THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO
A WARNING.

LAT...LON 3651 9616 3631 9617 3634 9642 3652 9639
TIME...MOT...LOC 1822Z 224DEG 5KT 3641 9631

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 7:46 PM CDT	Special Weather Statement	TSA	Tulsa	29 min
Jul 29, 7:52 PM CDT	Special Weather Statement	TSA	Okmulgee	23 min
Jul 30, 2:04 PM CDT	Special Weather Statement	TSA	Tulsa	26 min
Jul 30, 3:16 PM CDT	Special Weather Statement	TSA	Tulsa	29 min
Jul 30, 3:39 PM CDT	Special Weather Statement	TSA	Creek	36 min
Jul 30, 4:10 PM CDT	Special Weather Statement	TSA	Creek	50 min
Jul 30, 4:48 PM CDT	Special Weather Statement	TSA	Wagoner	42 min
Jul 30, 4:52 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa, Wagoner	12 min
Jul 30, 5:15 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee, Tulsa	11 min
Jul 30, 3:28 PM CDT	Special Weather Statement	TSA	Carroll	47 min
Jul 30, 4:11 PM CDT	Special Weather Statement	TSA	Carroll	34 min
Jul 30, 5:06 PM CDT	Special Weather Statement	TSA	Madison	24 min
Jul 30, 6:13 PM CDT	Special Weather Statement	TSA	Madison	47 min
Jul 30, 6:24 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	66 min
Jul 30, 6:42 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Crawford, Franklin, Madison, Washington	48 min

Nearby

Special Weather Statements in Oklahoma, 2011 Every special weather statement in 2011

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.