Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 552, NWS Norman, OK

July 3, 2015Hughes County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jul 3, 2015, 9:59 PM CDT for Hughes County, Oklahoma. It was in force for 31 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, 2015, 9:59 PM CDT (02:59 UTC)
Expired: Jul 3, 2015, 10:30 PM CDT
In force: 31 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Hughes County, OK

The radar

The Norman radar (KTLX), 99 km from the middle of the area, began a volume at 02:59 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 00:00Z, 3.0 hours before the alert went out and 106 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: 567 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1739 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: 32 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, 9:33 PM CDT, 26 minutes earlier.

Area forecast discussion, Jul 3, 9:33 PM CDT, 26 minutes before

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Hazardous weather outlook, Jul 3, 7:06 PM CDT, 2 hours 53 minutes before

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In the hours before

Special weather statement, Jul 3, 7:10 PM CDT, 2 hours 49 minutes before

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Special weather statement, Jul 3, 7:36 PM CDT, 2 hours 23 minutes before

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Special weather statement, Jul 3, 7:41 PM CDT, 2 hours 18 minutes before

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Special weather statement, Jul 3, 8:00 PM CDT, 1 hour 59 minutes before

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Special weather statement, Jul 3, 8:34 PM CDT, 1 hour 25 minutes before

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Special weather statement, Jul 3, 9:56 PM CDT, 3 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, 7:10 PM CDT	Special Weather Statement	OUN	Kiowa	35 min
Jul 3, 7:36 PM CDT	Special Weather Statement	OUN	Atoka	24 min
Jul 3, 7:41 PM CDT	Special Weather Statement	OUN	Kiowa	34 min
Jul 3, 7:58 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa, Tillman	47 min
Jul 3, 8:00 PM CDT	Special Weather Statement	OUN	Coal	30 min
Jul 3, 8:34 PM CDT	Special Weather Statement	OUN	Stephens	26 min
Jul 3, 9:56 PM CDT	Special Weather Statement	OUN	Hughes	34 min
Jul 4, 3:53 AM CDT	Special Weather Statement	OUN	Garvin	37 min
Jul 4, 5:26 AM CDT	Special Weather Statement	OUN	Major	34 min
Jul 4, 2:26 PM CDT	Special Weather Statement	OUN	Blaine	34 min
Jul 4, 2:59 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey	30 min
Jul 4, 3:28 PM CDT	Special Weather Statement	OUN	Caddo	32 min
Jul 4, 3:47 PM CDT	Special Weather Statement	OUN	Blaine	28 min
Jul 4, 4:01 PM CDT	Areal Flood Advisory	OUN	Blaine, Canadian, Kingfisher	3 hr
Jul 4, 4:11 PM CDT	Special Weather Statement	OUN	Kingfisher	34 min
Jul 4, 4:17 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	33 min
Jul 4, 4:32 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	43 min
Jul 4, 4:36 PM CDT	Special Weather Statement	OUN	Grady	24 min
Jul 4, 4:54 PM CDT	Special Weather Statement	OUN	Canadian	36 min
Jul 4, 5:01 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	30 min
Jul 4, 5:28 PM CDT	Special Weather Statement	OUN	Caddo	32 min
Jul 4, 5:36 PM CDT	Severe Thunderstorm Warning	OUN	Johnston	25 min
Jul 4, 5:59 PM CDT	Special Weather Statement	OUN	Cotton, Tillman	31 min
Jul 4, 6:14 PM CDT	Special Weather Statement	OUN	Grady	31 min
Jul 4, 6:17 PM CDT	Special Weather Statement	OUN	Atoka	28 min
Jul 4, 6:30 PM CDT	Special Weather Statement	OUN	Cotton	30 min
Jul 4, 6:41 PM CDT	Special Weather Statement	OUN	Cleveland	49 min
Jul 4, 6:51 PM CDT	Special Weather Statement	OUN	Bryan	39 min
Jul 4, 6:53 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	52 min
Jul 3, 7:13 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Hardeman, Wilbarger	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2015 Every severe thunderstorm warning in 2015

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.