Alert archive / Oklahoma / Special Weather Statements in 2015

Special Weather Statement, NWS Tulsa, OK

April 9, 2015Osage County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Apr 9, 2015, 12:08 AM CDT for Osage County, Oklahoma. It was in force for 37 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 9, 2015, 12:08 AM CDT (05:08 UTC)
Expired: Apr 9, 2015, 12:45 AM CDT
In force: 37 min
Issued by: NWS Tulsa, OK

County Osage County, OK

The radar

The Vance AFB radar (KVNX), 117 km from the middle of the area, began a volume at 05:12 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

Norman, OK (KOUN), launched 00:00Z, 5.1 hours before the alert went out and 170 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: 427 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 1139 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 302 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

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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 Apr 8, 11:35 PM CDT, 33 minutes earlier.

Area forecast discussion, Apr 8, 11:35 PM CDT, 33 minutes before

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Hazardous weather outlook, Apr 8, 9:56 PM CDT, 2 hours 12 minutes before

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In the hours before

Special weather statement, Apr 9, 12:08 AM CDT, 0 minutes before

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<body>
  <main class="wrap">
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      <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.
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 12:39 AM CDT	Special Weather Statement	TSA	Osage	51 min
Apr 9, 2:28 PM CDT	Special Weather Statement	TSA	Delaware	32 min
Apr 9, 2:34 PM CDT	Special Weather Statement	TSA	Delaware	26 min
Apr 9, 2:42 PM CDT	Special Weather Statement	TSA	Cherokee	33 min
Apr 9, 2:52 PM CDT	Special Weather Statement	TSA	Cherokee, Muskogee	38 min
Apr 9, 3:02 PM CDT	Special Weather Statement	TSA	Adair	28 min
Apr 9, 3:19 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	41 min
Apr 9, 3:31 PM CDT	Severe Thunderstorm Warning	TSA	Adair	44 min
Apr 9, 3:36 PM CDT	Special Weather Statement	TSA	Latimer	39 min
Apr 9, 3:40 PM CDT	Special Weather Statement	TSA	Haskell	50 min
Apr 9, 3:46 PM CDT	Severe Thunderstorm Warning	TSA	Adair	44 min
Apr 9, 4:19 PM CDT	Severe Thunderstorm Warning	TSA	Adair	41 min
Apr 9, 4:32 PM CDT	Special Weather Statement	TSA	Latimer	28 min
Apr 9, 4:37 PM CDT	Special Weather Statement	TSA	Haskell	23 min
Apr 9, 4:51 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	39 min
Apr 9, 4:58 PM CDT	Special Weather Statement	TSA	Sequoyah	32 min
Apr 9, 5:08 PM CDT	Special Weather Statement	TSA	Latimer	37 min
Apr 9, 5:29 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore	46 min
Apr 9, 5:36 PM CDT	Special Weather Statement	TSA	Pushmataha	39 min
Apr 9, 6:10 PM CDT	Special Weather Statement	TSA	Pushmataha	35 min
Apr 9, 6:17 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	43 min
Apr 9, 6:33 PM CDT	Special Weather Statement	TSA	Choctaw	27 min
Apr 9, 6:40 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	35 min
Apr 9, 3:33 PM CDT	Special Weather Statement	TSA	Benton	42 min
Apr 9, 3:43 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	15 min
Apr 9, 4:07 PM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	53 min
Apr 9, 4:38 PM CDT	Special Weather Statement	TSA	Madison	37 min
Apr 9, 4:43 PM CDT	Special Weather Statement	TSA	Carroll	32 min
Apr 9, 4:45 PM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	45 min
Apr 9, 4:53 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Washington	41 min
Apr 9, 4:54 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	22 min
Apr 9, 5:19 PM CDT	Special Weather Statement	TSA	Crawford, Franklin	26 min
Apr 9, 5:42 PM CDT	Severe Thunderstorm Warning	TSA	Franklin	14 min

Nearby

Special Weather Statements in Oklahoma, 2015 Every special weather statement in 2015

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.