Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 255, NWS Norman, OK

May 24, 1996Roger Mills County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 24, 1996, 9:42 PM CDT for Roger Mills County, Oklahoma. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 24, 1996, 9:42 PM CDT (02:42 UTC)
Expired: May 24, 1996, 10:45 PM CDT
In force: 63 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Roger Mills County, OK

The radar

The Altus AFB radar (KFDR), 161 km from the middle of the area, began a volume at 02:43 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.

What was reported inside it

Time	Report	Where	Remark
May 24, 9:50 PM CDT	Thunderstorm Wind 52	Cheyenne, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.7 hours before the alert went out and 189 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: 1854 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 2479 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 9:26 PM CDT, 16 minutes earlier.

Area forecast discussion, May 24, 9:26 PM CDT, 16 minutes before

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In the hours before

Local storm report, May 24, 6:59 PM CDT, 2 hours 43 minutes before

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Local storm report, May 24, 7:24 PM CDT, 2 hours 18 minutes before

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Local storm report, May 24, 8:30 PM CDT, 1 hour 12 minutes before

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Local storm report, May 24, 9:30 PM CDT, 12 minutes before

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Local storm report, May 24, 9:41 PM 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
May 24, 8:00 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	45 min
May 24, 8:47 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	58 min
May 24, 9:42 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	63 min
May 24, 9:45 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	45 min
May 24, 10:10 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	50 min
May 24, 10:29 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	61 min
May 25, 2:38 AM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	37 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1996 Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.