Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 642, NWS Norman, OK

June 19, 2019Harper County, Woods County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 19, 2019, 6:49 PM CDT for Harper County, Woods County, Oklahoma. It was in force for 56 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: Jun 19, 2019, 6:49 PM CDT (23:49 UTC)
Expired: Jun 19, 2019, 7:45 PM CDT
In force: 56 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 2.75 in
Wind: 60.0 mph

Counties Harper County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 102 km from the middle of the area, began a volume at 23:51 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 19, 5:51 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 11.8 hours before the alert went out and 124 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: 2 J/kg
Mixed-layer CIN: -236 J/kg
Mixed-layer LCL: 1061 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 85 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 Jun 19, 6:38 PM CDT, 11 minutes earlier.

Area forecast discussion, Jun 19, 6:38 PM CDT, 11 minutes before

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Hazardous weather outlook, Jun 19, 11:47 AM CDT, 7 hours 2 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
Jun 18, 8:16 PM CDT	Special Weather Statement	OUN	Woodward	29 min
Jun 18, 8:45 PM CDT	Special Weather Statement	OUN	Woodward	30 min
Jun 18, 9:30 PM CDT	Special Weather Statement	OUN	Woodward	30 min
Jun 18, 9:35 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	40 min
Jun 18, 9:50 PM CDT	Special Weather Statement	OUN	Woodward	25 min
Jun 18, 10:06 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods, Woodward	39 min
Jun 18, 10:18 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	42 min
Jun 18, 10:20 PM CDT	Special Weather Statement	OUN	Dewey	25 min
Jun 18, 10:21 PM CDT	Special Weather Statement	OUN	Kingfisher	24 min
Jun 18, 10:28 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher, Major	47 min
Jun 18, 10:35 PM CDT	Special Weather Statement	OUN	Beckham, Custer	25 min
Jun 18, 10:37 PM CDT	Special Weather Statement	OUN	Alfalfa	38 min
Jun 18, 10:49 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Greer, Roger Mills, Washita	41 min
Jun 18, 10:57 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	48 min
Jun 18, 11:07 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Jackson, Kiowa	53 min
Jun 18, 11:10 PM CDT	Special Weather Statement	OUN	Blaine, Custer, Kingfisher	35 min
Jun 18, 11:25 PM CDT	Special Weather Statement	OUN	Kingfisher	35 min
Jun 18, 11:30 PM CDT	Special Weather Statement	OUN	Washita	30 min
Jun 18, 11:33 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Canadian, Kingfisher	42 min
Jun 18, 11:42 PM CDT	Severe Thunderstorm Warning	OUN	Woods, Woodward	51 min
Jun 18, 11:46 PM CDT	Special Weather Statement	OUN	Caddo	29 min
Jun 18, 11:54 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Greer, Jackson, Kiowa, Tillman	51 min
Jun 18, 11:56 PM CDT	Special Weather Statement	OUN	Washita	34 min
Jun 19, 12:04 AM CDT	Special Weather Statement	OUN	Logan	26 min
Jun 19, 12:13 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	47 min
Jun 19, 12:15 AM CDT	Special Weather Statement	OUN	Caddo, Canadian	30 min
Jun 19, 12:22 AM CDT	Special Weather Statement	OUN	Alfalfa, Garfield	23 min
Jun 19, 12:29 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Cotton, Jackson, Kiowa, Tillman	46 min
Jun 19, 12:32 AM CDT	Special Weather Statement	OUN	Oklahoma	28 min
Jun 19, 12:43 AM CDT	Special Weather Statement	OUN	Alfalfa, Garfield, Grant, Woods	32 min
Jun 19, 12:45 AM CDT	Special Weather Statement	OUN	Garvin	45 min
Jun 19, 12:53 AM CDT	Special Weather Statement	OUN	Stephens	52 min
Jun 19, 12:56 AM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	34 min
Jun 19, 1:01 AM CDT	Special Weather Statement	OUN	Lincoln	29 min
Jun 19, 1:04 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, Lincoln, McClain, Oklahoma and 1 more	56 min
Jun 19, 1:05 AM CDT	Areal Flood Advisory	OUN	Cleveland, Oklahoma	115 min
Jun 19, 1:11 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Comanche, Garvin, Grady, Jefferson, Stephens	49 min
Jun 19, 1:35 AM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Johnston, McClain, Murray, Pontotoc	40 min
Jun 19, 1:47 AM CDT	Special Weather Statement	OUN	McClain, Pottawatomie, Seminole	58 min
Jun 19, 1:51 AM CDT	Special Weather Statement	OUN	Johnston, Marshall	24 min
Jun 19, 2:11 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Garvin, Hughes, Johnston, McClain and 4 more	64 min
Jun 19, 2:14 AM CDT	Special Weather Statement	OUN	Bryan, Johnston, Marshall	31 min
Jun 19, 2:26 AM CDT	Severe Thunderstorm Warning	OUN	Hughes, Pottawatomie, Seminole	64 min
Jun 19, 2:30 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan, Johnston, Marshall	75 min
Jun 19, 3:11 AM CDT	Severe Thunderstorm Warning	OUN	Atoka	27 min
Jun 19, 6:29 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	33 min
Jun 18, 10:26 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman, Knox	49 min
Jun 18, 11:02 PM CDT	Special Weather Statement	OUN	Baylor, Wilbarger	28 min
Jun 18, 11:50 PM CDT	Special Weather Statement	OUN	Archer	25 min
Jun 19, 12:08 AM CDT	Special Weather Statement	OUN	Archer	52 min
Jun 19, 1:16 AM CDT	Special Weather Statement	OUN	Archer, Clay, Wichita	29 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

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.