Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 417, NWS Norman, OK

July 15, 1992Ellis County, Harper County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 15, 1992, 3:44 PM CDT for Ellis County, Harper County, Oklahoma. It was in force for 46 min.

The area

The counties it named.

The facts

Issued: Jul 15, 1992, 3:44 PM CDT (20:44 UTC)
Expired: Jul 15, 1992, 4:30 PM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Whole counties

Counties Ellis County, OK, Harper County, OK

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 8.7 hours before the alert went out and 142 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: 1495 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 1659 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Jul 15, 10:16 AM CDT, 5 hours 28 minutes earlier.

Area forecast discussion, Jul 15, 10:16 AM CDT, 5 hours 28 minutes before

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In the hours before

Local storm report, Jul 15, 2:39 PM CDT, 1 hour 5 minutes before

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Local storm report, Jul 15, 2:59 PM CDT, 45 minutes before

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Local storm report, Jul 15, 3:13 PM CDT, 31 minutes before

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Special weather statement, Jul 15, 3:20 PM CDT, 24 minutes before

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Local storm report, Jul 15, 3:25 PM CDT, 19 minutes before

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        Please try again in a few minutes.
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The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 10:45 PM CDT	Severe Thunderstorm Warning	OUN	Choctaw	45 min
Jul 15, 12:22 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Johnston	53 min
Jul 15, 1:12 AM CDT	Severe Thunderstorm Warning	OUN	Murray, Pontotoc	48 min
Jul 15, 2:55 AM CDT	Severe Thunderstorm Warning	OUN	Johnston, Murray	50 min
Jul 15, 4:40 AM CDT	Severe Thunderstorm Warning	OUN	Bryan, Marshall	50 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 1992 Every severe thunderstorm warning in 1992

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.