Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 573, NWS Norman, OK

September 23, 2006Hughes County, Seminole County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Sep 23, 2006, 4:27 AM CDT for Hughes County, Seminole County, Oklahoma. It was in force for 26 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: Sep 23, 2006, 4:27 AM CDT (09:27 UTC)
Expired: Sep 23, 2006, 4:53 AM CDT
In force: 26 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

Counties Hughes County, OK, Seminole County, OK

The radar

The Norman radar (KTLX), 81 km from the middle of the area, began a volume at 09:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 23, 3:33 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 9.5 hours before the alert went out and 89 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3079 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 245 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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 23, 3:18 AM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, Sep 23, 3:18 AM CDT, 1 hour 9 minutes before

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Hazardous weather outlook, Sep 23, 12:15 AM CDT, 4 hours 12 minutes before

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In the hours before

Special weather statement, Sep 23, 3:43 AM CDT, 44 minutes before

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Special weather statement, Sep 23, 4:01 AM CDT, 26 minutes before

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Special weather statement, Sep 23, 4:03 AM CDT, 24 minutes before

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Special weather statement, Sep 23, 4:17 AM CDT, 10 minutes before

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Special weather statement, Sep 23, 4:19 AM CDT, 8 minutes before

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Special weather statement, Sep 23, 4:26 AM CDT, 1 minute 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
Sep 22, 7:07 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	38 min
Sep 22, 8:08 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	52 min
Sep 22, 9:04 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	41 min
Sep 23, 2:48 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	27 min
Sep 23, 4:08 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Stephens	37 min
Sep 23, 5:36 AM CDT	Severe Thunderstorm Warning	OUN	Carter	24 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2006 Every severe thunderstorm warning in 2006

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.