Alert archive / Texas / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 177, NWS Norman, OK

May 25, 2005Archer County, Texas

NWS Norman, OK issued this severe thunderstorm warning at May 25, 2005, 11:07 AM CDT for Archer County, Texas. It was in force for 29 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 25, 2005, 11:07 AM CDT (16:07 UTC)
Expired: May 25, 2005, 11:36 AM CDT
In force: 29 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Archer County, TX

The radar

The Altus AFB radar (KFDR), 87 km from the middle of the area, began a volume at 16:09 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
May 25, 9:20 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Sill, OK (KFSI), launched 12:00Z, 4.1 hours before the alert went out and 118 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: 709 J/kg
Mixed-layer CIN: -272 J/kg
Mixed-layer LCL: 1100 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 25, 11:05 AM CDT, 2 minutes earlier.

Area forecast discussion, May 25, 11:05 AM CDT, 2 minutes before

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In the hours before

Special weather statement, May 25, 9:49 AM CDT, 1 hour 18 minutes before

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Local storm report, May 25, 10:05 AM CDT, 1 hour 2 minutes before

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Special weather statement, May 25, 10:15 AM CDT, 52 minutes before

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Special weather statement, May 25, 10:32 AM CDT, 35 minutes before

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Special weather statement, May 25, 10:32 AM CDT, 35 minutes before

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Local storm report, May 25, 10:41 AM CDT, 26 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 25, 8:33 AM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	42 min
May 25, 8:55 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Stephens	50 min
May 25, 9:08 AM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	52 min
May 25, 9:34 AM CDT	Severe Thunderstorm Warning	OUN	Kiowa	26 min
May 25, 9:45 AM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Stephens	45 min
May 25, 10:00 AM CDT	Severe Thunderstorm Warning	OUN	Tillman	45 min
May 25, 10:28 AM CDT	Severe Thunderstorm Warning	OUN	Cotton	44 min
May 25, 11:04 AM CDT	Severe Thunderstorm Warning	OUN	Jefferson	26 min
May 25, 11:29 AM CDT	Severe Thunderstorm Warning	OUN	Love	46 min
May 25, 12:22 PM CDT	Severe Thunderstorm Warning	OUN	Love	31 min
May 25, 9:20 AM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	40 min
May 25, 10:39 AM CDT	Severe Thunderstorm Warning	OUN	Wichita	51 min
May 25, 10:59 AM CDT	Severe Thunderstorm Warning	OUN	Clay	46 min
May 25, 11:43 AM CDT	Severe Thunderstorm Warning	OUN	Clay	29 min

Nearby

Severe Thunderstorm Warnings in Texas, 2005 Every severe thunderstorm warning in 2005

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.