Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 213, NWS Tulsa, OK

May 12, 2009Craig County, Nowata County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 12, 2009, 3:00 PM CDT for Craig County, Nowata County, Oklahoma. It was in force for 48 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
May 12, 2009, 3:00 PM CDT (20:00 UTC)
Expired
May 12, 2009, 3:48 PM CDT
In force
48 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon

Counties Craig County, OK, Nowata County, OK

The radar

The Tulsa radar (KINX), 69 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 144 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, Springfield, MO at 12:00Z on 2009-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 12:00Z on 2009-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
159 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 severe thunderstorm warning 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 severe thunderstorm warning went out at May 12, 12:38 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, May 12, 12:38 PM CDT, 2 hours 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1238 PM CDT TUE MAY 12 2009

...AVIATION...

.DISCUSSION...
SHOWERS AND THUNDERSTORMS ARE EXITING THE EASTERN OKLAHOMA
TAFS...OCCURRING IN FSM AND WILL MOVE INTO XNA/FYV OVER THE NEXT
COUPLE OF HOURS. WILL CARRY VCTS FOR LINGERING PRECIP ACROSS
EASTERN OKLAHOMA AND TEMPO THE PRECIP FOR NORTHWEST ARKANSAS. ALL
TAF SITES LOOK TO DRY OUT AFTER 0000 UTC. PRECIP CHANCES REMAIN
ACROSS FAR NORTHEAST OKLAHOMA OVERNIGHT...THOUGH FEEL AS COVERAGE
WILL BE TOO ISOLATED TO MENTION IN THE TAFS. SOUTHEAST TO SOUTHERLY
SFC WINDS WILL INCREASE AT 15G20KTS AFTER 1200 UTC AS THE WARM
FRONT PUSHES THROUGH THE CWA.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   70  84  56  78 /  10  30  80  40
FSM   68  86  64  79 /  10  10  60  40
MLC   70  85  63  78 /   0  10  60  30
BVO   69  85  55  76 /  20  40  80  40
FYV   65  82  58  71 /  20  20  90  50
BYV   65  83  57  72 /  20  20  90  60
MKO   69  84  59  75 /  10  10  80  40
MIO   68  83  55  73 /  20  40  90  50
F10   70  85  59  76 /  10  10  80  30
HHW   69  86  67  83 /  10  10  40  20

&&

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

SHORT TERM...20
LONG TERM....14
AVIATION...20
Hazardous weather outlook, May 12, 1:13 PM CDT, 1 hour 47 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, May 12, 1:07 PM CDT, 1 hour 53 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, May 12, 1:43 PM CDT, 1 hour 17 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, May 12, 2:02 PM CDT, 58 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, May 12, 2:15 PM CDT, 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>
Special weather statement, May 12, 2:31 PM CDT, 29 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, May 12, 2:54 PM CDT, 6 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 Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 9:04 AM CDTSpecial Weather StatementTSAPushmataha26 min
May 12, 9:39 AM CDTAreal Flood AdvisoryTSALatimer, LeFlore, Pushmataha66 min
May 12, 9:59 AM CDTSpecial Weather StatementTSAPawnee31 min
May 12, 10:12 AM CDTSpecial Weather StatementTSACreek, Pawnee, Tulsa63 min
May 12, 10:20 AM CDTSpecial Weather StatementTSAOkfuskee40 min
May 12, 10:38 AM CDTSpecial Weather StatementTSAPushmataha67 min
May 12, 10:39 AM CDTSpecial Weather StatementTSARogers, Tulsa, Wagoner66 min
May 12, 10:42 AM CDTAreal Flood AdvisoryTSAChoctaw, Latimer, LeFlore, Pushmataha63 min
May 12, 10:42 AM CDTSpecial Weather StatementTSAOkfuskee, Okmulgee63 min
May 12, 11:29 AM CDTSpecial Weather StatementTSAPushmataha61 min
May 12, 11:44 AM CDTAreal Flood AdvisoryTSAChoctaw, Pushmataha61 min
May 12, 12:34 PM CDTSpecial Weather StatementTSACraig, Nowata56 min
May 12, 12:35 PM CDTSpecial Weather StatementTSATulsa55 min
May 12, 12:40 PM CDTSpecial Weather StatementTSAOsage50 min
May 12, 12:43 PM CDTAreal Flood AdvisoryTSAPushmataha62 min
May 12, 12:43 PM CDTSevere Thunderstorm WarningTSAOsage41 min
May 12, 12:56 PM CDTSpecial Weather StatementTSATulsa49 min
May 12, 1:00 PM CDTSevere Thunderstorm WarningTSACreek, Rogers, Tulsa, Wagoner27 min
May 12, 1:43 PM CDTSpecial Weather StatementTSACraig47 min
May 12, 2:15 PM CDTSpecial Weather StatementTSADelaware, Mayes60 min
May 12, 2:31 PM CDTSpecial Weather StatementTSACraig, Ottawa59 min
May 12, 2:50 PM CDTSevere Thunderstorm WarningTSANowata, Washington30 min
May 12, 2:54 PM CDTSpecial Weather StatementTSAOttawa66 min
May 12, 3:05 PM CDTSpecial Weather StatementTSADelaware55 min
May 12, 3:08 PM CDTSevere Thunderstorm WarningTSACraig, Nowata67 min
May 12, 3:37 PM CDTSevere Thunderstorm WarningTSACraig, Delaware, Mayes, Ottawa, Rogers48 min
May 12, 3:49 PM CDTSpecial Weather StatementTSALeFlore56 min
May 12, 4:14 PM CDTSpecial Weather StatementTSADelaware, Mayes61 min
May 12, 4:33 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware, Mayes42 min
May 12, 5:11 PM CDTSpecial Weather StatementTSAAdair64 min
May 12, 5:42 PM CDTSevere Thunderstorm WarningTSAAdair48 min
May 12, 6:12 PM CDTSevere Thunderstorm WarningTSAAdair, Sequoyah48 min
May 12, 5:23 PM CDTSevere Thunderstorm WarningTSACrawford, Madison, Washington37 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2009Every severe thunderstorm warning in 2009

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.