Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 307, NWS Norman, OK

May 30, 2006Custer County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 30, 2006, 1:42 AM CDT for Custer 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 30, 2006, 1:42 AM CDT (06:42 UTC)
Expired: May 30, 2006, 2:30 AM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Custer County, OK

The radar

The Altus AFB radar (KFDR), 142 km from the middle of the area, began a volume at 06:42 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, 6.7 hours before the alert went out and 175 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: 346 J/kg
Mixed-layer CIN: -396 J/kg
Mixed-layer LCL: 1122 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 58 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 May 29, 8:46 PM CDT, 4 hours 56 minutes earlier.

Area forecast discussion, May 29, 8:46 PM CDT, 4 hours 56 minutes before

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In the hours before

Special weather statement, May 29, 9:07 PM CDT, 4 hours 35 minutes before

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Special weather statement, May 29, 9:27 PM CDT, 4 hours 15 minutes before

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Special weather statement, May 29, 9:32 PM CDT, 4 hours 10 minutes before

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Special weather statement, May 29, 9:57 PM CDT, 3 hours 45 minutes before

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Special weather statement, May 29, 10:43 PM CDT, 2 hours 59 minutes before

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Special weather statement, May 30, 1:11 AM CDT, 31 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
May 29, 7:01 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	59 min
May 29, 7:21 PM CDT	Severe Thunderstorm Warning	OUN	Grant	54 min
May 29, 7:31 PM CDT	Severe Thunderstorm Warning	OUN	Woods	44 min
May 29, 8:15 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods	60 min
May 30, 1:32 AM CDT	Severe Thunderstorm Warning	OUN	Custer	13 min
May 30, 1:57 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	48 min
May 30, 2:46 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	44 min
May 30, 3:30 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	45 min
May 30, 4:16 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	44 min
May 30, 4:29 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	46 min
May 30, 4:59 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	46 min
May 30, 5:27 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	48 min
May 30, 5:34 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	41 min
May 30, 6:14 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	46 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.