Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 238, NWS Norman, OK

May 24, 2007Tillman County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 24, 2007, 7:53 AM CDT for Tillman 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 counties it named.

The facts

Issued: May 24, 2007, 7:53 AM CDT (12:53 UTC)
Expired: May 24, 2007, 8:30 AM CDT
In force: 37 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Tillman County, OK

The radar

The Altus AFB radar (KFDR), 5 km from the middle of the area, began a volume at 12:56 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

Fort Worth, TX (KFWD), launched 12:00Z, 0.9 hours before the alert went out and 229 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: 883 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 713 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 143 m²/s²
0-3 km storm-relative helicity: 220 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 24, 3:32 AM CDT, 4 hours 21 minutes earlier.

Area forecast discussion, May 24, 3:32 AM CDT, 4 hours 21 minutes before

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Hazardous weather outlook, May 24, 7:00 AM CDT, 53 minutes before

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In the hours before

Special weather statement, May 24, 6:17 AM CDT, 1 hour 36 minutes before

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Special weather statement, May 24, 6:29 AM CDT, 1 hour 24 minutes before

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Special weather statement, May 24, 6:56 AM CDT, 57 minutes before

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Special weather statement, May 24, 7:03 AM CDT, 50 minutes before

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Special weather statement, May 24, 7:10 AM CDT, 43 minutes before

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Special weather statement, May 24, 7:39 AM CDT, 14 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 23, 9:40 PM CDT	Severe Thunderstorm Warning	OUN	Harper	50 min
May 23, 10:29 PM CDT	Severe Thunderstorm Warning	OUN	Harper	61 min
May 23, 10:44 PM CDT	Tornado Warning	OUN	Harper	46 min
May 23, 11:30 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	60 min
May 24, 12:39 AM CDT	Severe Thunderstorm Warning	OUN	Ellis	51 min
May 24, 12:57 AM CDT	Tornado Warning	OUN	Ellis	33 min
May 24, 1:06 AM CDT	Tornado Warning	OUN	Woodward	16 min
May 24, 1:23 AM CDT	Severe Thunderstorm Warning	OUN	Woodward	52 min
May 24, 2:04 AM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	41 min
May 24, 3:11 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	34 min
May 24, 3:23 AM CDT	Severe Thunderstorm Warning	OUN	Grant	37 min
May 24, 3:45 AM CDT	Severe Thunderstorm Warning	OUN	Major	30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2007 Every severe thunderstorm warning in 2007

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.