Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 9, NWS Norman, OK

March 28, 1993Lincoln County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 28, 1993, 8:56 AM CST for Lincoln County, Oklahoma. It was in force for 34 min.

The area

The counties it named.

The facts

Issued: Mar 28, 1993, 8:56 AM CST (14:56 UTC)
Expired: Mar 28, 1993, 9:30 AM CST
In force: 34 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Lincoln County, OK

The radar

The Norman radar (KTLX), 55 km from the middle of the area, began a volume at 14:59 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

Norman, OK (KOUN), launched 12:00Z, 2.9 hours before the alert went out and 71 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: 582 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 897 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 204 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

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 Mar 28, 4:21 AM CST, 4 hours 35 minutes earlier.

Area forecast discussion, Mar 28, 4:21 AM CST, 4 hours 35 minutes before

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In the hours before

Special weather statement, Mar 28, 3:16 AM CST, 5 hours 40 minutes before

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Special weather statement, Mar 28, 6:02 AM CST, 2 hours 54 minutes before

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Special weather statement, Mar 28, 8:19 AM CST, 37 minutes before

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Local storm report, Mar 28, 8:22 AM CST, 34 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
Mar 28, 6:13 AM CST	Severe Thunderstorm Warning	OUN	Jefferson	47 min
Mar 28, 6:56 AM CST	Severe Thunderstorm Warning	OUN	Noble	49 min
Mar 28, 7:17 AM CST	Severe Thunderstorm Warning	OUN	Kay	43 min
Mar 28, 8:24 AM CST	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	36 min
Mar 28, 10:25 AM CST	Severe Thunderstorm Warning	OUN	Payne	35 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1993 Every severe thunderstorm warning in 1993

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.