Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 474, NWS Norman, OK

July 3, 2020Lincoln County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 3, 2020, 11:37 PM CDT for Lincoln County, Oklahoma. It was in force for 23 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: Jul 3, 2020, 11:37 PM CDT (04:37 UTC)
Expired: Jul 4, 2020, 12:00 AM CDT
In force: 23 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lincoln County, OK

The radar

The Norman radar (KTLX), 55 km from the middle of the area, began a volume at 04:37 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

Springfield, MO (KSGF), launched 00:00Z, 4.6 hours before the alert went out and 306 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: 1050 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1375 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: -22 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 Jul 3, 10:45 PM CDT, 52 minutes earlier.

Area forecast discussion, Jul 3, 10:45 PM CDT, 52 minutes before

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Hazardous weather outlook, Jul 3, 10:11 PM CDT, 1 hour 26 minutes before

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In the hours before

Special weather statement, Jul 3, 9:46 PM CDT, 1 hour 51 minutes before

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Special weather statement, Jul 3, 9:49 PM CDT, 1 hour 48 minutes before

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Special weather statement, Jul 3, 10:09 PM CDT, 1 hour 28 minutes before

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Special weather statement, Jul 3, 10:29 PM CDT, 1 hour 8 minutes before

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Special weather statement, Jul 3, 10:51 PM CDT, 46 minutes before

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Special weather statement, Jul 3, 11:26 PM CDT, 11 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
Jul 3, 7:02 PM CDT	Special Weather Statement	OUN	Blaine	28 min
Jul 3, 7:24 PM CDT	Special Weather Statement	OUN	Blaine	36 min
Jul 3, 7:28 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Kingfisher	47 min
Jul 3, 7:38 PM CDT	Special Weather Statement	OUN	Ellis	37 min
Jul 3, 7:56 PM CDT	Special Weather Statement	OUN	Blaine	34 min
Jul 3, 7:59 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo	46 min
Jul 3, 8:30 PM CDT	Special Weather Statement	OUN	Dewey	30 min
Jul 3, 8:44 PM CDT	Special Weather Statement	OUN	Caddo	31 min
Jul 3, 8:55 PM CDT	Special Weather Statement	OUN	Custer	35 min
Jul 3, 8:58 PM CDT	Special Weather Statement	OUN	Ellis	32 min
Jul 3, 9:16 PM CDT	Special Weather Statement	OUN	Custer	29 min
Jul 3, 9:46 PM CDT	Special Weather Statement	OUN	Custer	29 min
Jul 3, 9:49 PM CDT	Special Weather Statement	OUN	Kingfisher	26 min
Jul 3, 10:09 PM CDT	Special Weather Statement	OUN	Kingfisher	36 min
Jul 3, 10:29 PM CDT	Special Weather Statement	OUN	Kingfisher	46 min
Jul 3, 10:51 PM CDT	Special Weather Statement	OUN	Oklahoma	39 min
Jul 3, 11:26 PM CDT	Special Weather Statement	OUN	Lincoln	34 min
Jul 3, 11:29 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Oklahoma, Pottawatomie	31 min
Jul 3, 11:44 PM CDT	Special Weather Statement	OUN	Lincoln	31 min
Jul 4, 12:14 AM CDT	Special Weather Statement	OUN	Lincoln	31 min
Jul 4, 12:45 AM CDT	Special Weather Statement	OUN	Lincoln	30 min
Jul 4, 1:39 AM CDT	Special Weather Statement	OUN	Logan, Oklahoma	36 min
Jul 4, 2:10 AM CDT	Special Weather Statement	OUN	Oklahoma	35 min
Jul 4, 2:44 AM CDT	Special Weather Statement	OUN	Oklahoma	31 min
Jul 4, 2:54 AM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	36 min
Jul 4, 3:28 AM CDT	Areal Flood Advisory	OUN	Logan, Oklahoma	3 hr
Jul 4, 2:51 PM CDT	Special Weather Statement	OUN	Greer	24 min
Jul 4, 2:59 PM CDT	Special Weather Statement	OUN	Beckham	31 min
Jul 4, 3:33 PM CDT	Special Weather Statement	OUN	Jackson	27 min
Jul 4, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	39 min
Jul 4, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon	50 min
Jul 4, 3:47 PM CDT	Special Weather Statement	OUN	Kiowa	28 min
Jul 4, 4:15 PM CDT	Special Weather Statement	OUN	Jackson	30 min
Jul 4, 4:18 PM CDT	Special Weather Statement	OUN	Jackson	27 min
Jul 4, 4:20 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa	40 min
Jul 4, 4:27 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Jackson	48 min
Jul 4, 4:37 PM CDT	Special Weather Statement	OUN	Jackson	38 min
Jul 4, 4:55 PM CDT	Special Weather Statement	OUN	Harmon	35 min
Jul 4, 5:16 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	44 min
Jul 4, 5:01 PM CDT	Special Weather Statement	OUN	Hardeman	29 min
Jul 4, 5:32 PM CDT	Special Weather Statement	OUN	Wilbarger	28 min
Jul 4, 5:49 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	41 min
Jul 4, 6:25 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	50 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2020 Every severe thunderstorm warning in 2020

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.