Alert archive / Oklahoma / Special Weather Statements in 2011

Special Weather Statement, NWS Norman, OK

June 29, 2011Pontotoc County, Oklahoma

NWS Norman, OK issued this special weather statement at Jun 29, 2011, 7:07 PM CDT for Pontotoc County, Oklahoma. It was in force for 23 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: Jun 29, 2011, 7:07 PM CDT (00:07 UTC)
Expired: Jun 29, 2011, 7:30 PM CDT
In force: 23 min
Issued by: NWS Norman, OK

County Pontotoc County, OK

The radar

The Norman radar (KTLX), 102 km from the middle of the area, began a volume at 00:10 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 00:00Z, 0.1 hours before the alert went out and 240 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: 1740 J/kg
Mixed-layer CIN: -121 J/kg
Mixed-layer LCL: 2597 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Norman, OK wrote its last area forecast discussion before this special weather statement went out at Jun 29, 6:45 PM CDT, 22 minutes earlier.

Area forecast discussion, Jun 29, 6:45 PM CDT, 22 minutes before

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Hazardous weather outlook, Jun 29, 11:41 AM CDT, 7 hours 26 minutes before

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In the hours before

Special weather statement, Jun 29, 6:27 PM CDT, 40 minutes before

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Special weather statement, Jun 29, 6:51 PM CDT, 16 minutes before

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Special weather statement, Jun 29, 7:07 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 7:33 PM CDT	Special Weather Statement	OUN	Pontotoc	27 min
Jun 30, 3:46 AM CDT	Red Flag Warning	OUN	Alfalfa, Beckham, Custer, Dewey, Ellis, Greer and 6 more	15 hr
Jun 30, 5:33 PM CDT	Special Weather Statement	OUN	Atoka	27 min
Jun 30, 5:55 PM CDT	Special Weather Statement	OUN	Atoka	20 min
Jun 30, 6:15 PM CDT	Special Weather Statement	OUN	Atoka	15 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.